What is the direct effect of oxygen to sea otters?

Answers

Answer 1

It would be challenging to duplicate the precise circumstances of the chemical release elsewhere.

How does temperature affect sea otters directly?

Sea otters decrease heat loss by floating on their backs with their feet out of the water when the water is too chilly. The sea otter extends its feet out underwater to increase its surface area while it is seeking to shed heat. Sea otters frequently extend their feet out or tuck them up to conserve body heat.

River otters take oxygen from the air, just like other animals do. In the event that they are submerged, they surface to breathe. In the winter, when the water is frozen into ice, they create holes so they may rise to the surface to breathe.

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Related Questions

In glycolysis, a glucose molecule is split into two molecules of ______, and energy is harvested as atp and nadh.

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In glycolysis, a glucose molecule is split into two molecules of pyruvate and energy is harvested as ATP and NADH.

Glycolysis is the process that can be characterized as the first stage of cellular respiration followed by the citric acid cycle and electron transport chain.

Cellular respiration is the process that occurs in the cells of the body to release energy from glucose derived from food molecules.

In the process of glycolysis, the glucose molecule is broken down into two pyruvate molecules by a series of complex processes. ATP and NADH is released in the process of glycolysis.

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Cells arise only from previously___with cells passing copies of their____ on to their daughter cells.
A) Dead cells, divided cells
B) Alive cells, proteins
C) Existing cells, genetic material
D) Alive cells, dead cells

Answers

Answer:
C) existing cells, genetic material

Work:
third principal of cell theory;

1. All living organisms are composed of 1 or more cells.
2. Cells are the basic unit of structure & organizations of all living organisms.
3. Cells arise only from previously existing cells with cells passing copies of their genetic material onto their daughter cells.

you are performing an analysis of the long-term benefits of reproductive strategies employed by cicada species. individuals of one species reproduce once every year and produce an average of 150 offspring per year. because predators can easily predict when these cicadas will reproduce, they have evolved to efficiently hunt the yearly cicada offspring. thus, only 5 percent of these offspring will survive to reproduce. individuals of the 13-year cicada species produce an average of 250 offspring during their single mating every 13 years, and approximately 45 percent of the offspring survive to reproduce. finally, 17-year cicadas produce an average of 350 offspring per individual during their single mating every 17 years, and approximately 50 percent of the offspring survive to reproduce. over 100 years, which strategy will produce the newest cicadas? assume the 13-year and 17-year cycles all begin at year 1; that is, the first 13-year cicada reproductive event is on year 13

Answers

17-year cicadas produce an average of 350 offspring per individual during their single mating every 17 years strategy will produce the newest cicadas

How do cicadas reproduce?

Once they have discovered a suitable female, cicada males sing a courting song. The female will let the male to approach and then unite end to end to mate if she is pleased with him. He will give the female a bundle of sperm during the mating procedure, which she will utilise to fertilise her eggs.

Megapomponia imperatoria, a species of cicada endemic to Malaysia, is the biggest cicada species in the world.

A membrane known as a tymbal that they inflate and contract to produce sound. When females are prepared to mate, they emit clicking noises, so they employ their sound to entice the females. The male cicadas' noises get louder as the temperature rises.

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What is a biological catalyst

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Answer: Enzymes

Explanation:

A catalyst is a substance that causes the rate of a chemical reaction to increase without undergoing any permanent change.

In the case of biology a biological catalyst would refer to enzymes.

Enzymes are most often protein in nature and catalyze numerous biological reactions.

Explain how the structure of a cell’s membrane is related to its function.

Answers

Answer:

It forms a physical barrier and as a barrier between the cell and the external environment as it allows only selected necessary molecules to pass through it and at the same time prevents entry of unwanted / unnecessary substances. It also regulates the entry and exit of molecules into and out of the cell.

Explanation:

Should recycling always be done even if it isn’t profitable

Answers

The true benefit of recycling is reusing items that can be reconstituted in order to reduce waste. Therefore it is healthy for the planet regardless if it is profitable or not.

can someone help me pleaseeeeeeeeeeee

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The greatest gravitational force is experienced when;

P = 6.0 * 10^24 KgQ = 625 Kgd = 25000 m

What is the gravitational force?

Let us recall that the gravitational force is the force that acts between any two objects that we find on the earth's surface. The gravitational force is an attractive force. We know that if we have two objects, then one object must effect a gravitational force of attraction on the other. The magnitude of the gravitational force of attraction can be obtained by the use of the formula;

F = Gm1m2/r^2

F = the gravitational force of attraction

G = gravitational constant

m1 and m2 = The masses of each of the objects

r = The distance between the objects that are found in the gravitational filed of the earth.

The larger the masses of the objects and the smaller the distance that the objects have between them, the greater the gravitational force between the objects.

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explain why most nerve cells have a myelin sheath

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Myelin is a lipid-made substance that surrounds the axons of some neurons. This myelin sheath acts as an electrical insulator and speeds up the propagation of the action potentials inside the neurons' axons.

zone with the largest biodiversity in oceon

Answers

Answer:
oceanic zone

Explanation:
The oceanic zone that contains the greatest biodiversity is the neritic zone. This zone supports coastal communities like coral reefs. Coral reefs are located in warm, shallow, tropical waters. These regions receive ample sunlight to support a booming producer population that can support an abundance of other animals. Coral reefs create many microhabitats that allow for unique niches. These niches support the evolution of many different types of species, which creates the high biodiversity seen in the area.

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Many people are interested in organic foods as a healthier alternative to conventional foods. However, they often wish that organic foods were cheaper and more readily available. Research the political, social, and environmental consequences of organic agriculture. Is organic agriculture sustainable? In your response, be sure to include the environmental impacts of both traditional and organic agriculture.

Answers

Organic food prices include environmental enhancement and protection, as well as food production costs (and avoidance of future expenses to mitigate pollution). Therefore, they are expensive.

What is organic farming?

A kind of farming that relies on biologically based methods for the management of pests, biological fertilizers made primarily from the byproducts of animals and plants, and cover crops that are able to fix nitrogen is organic farming.

Organic farming reduces the chance of polluting the environment and helps cut down on greenhouse gas emissions by limiting the use of chemical fertilizers and pesticides made from fossil fuels.Organic farming is resource-efficient, environmentally friendly, and sustainable, helping preserve species diversity and biodiversity.

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which of the following are methods used by biologists to distinguish different species? multiple select question. assessing the ability of individuals of different groups to successfully interbreed observing the outward appearance of individuals assessing whether the organisms occupy the same space determining evolutionary relationships and lineages determining if individuals physically interact with one another analyzing dna or other molecular sequences

Answers

The methods used by biologists to distinguish different species are: analyzing DNA or other molecular sequences

observing the outward appearance of individuals

assessing the ability of individuals of different groups to successfully interbreed

determinating evolutionary relationships and lineages

determining the organisms' ecological niches

Scientists use many ways to distinguish different species. Scientists use the DNA of organisms to look for similarities and differences in them. Based on these similarities and differences, they are able to distinguish species.

Assessing the physical traits of an organism also helps in differentiating it from other species.

Evolution is also a big key to determining the relationship and differences among species.

The place where an organism lives and its ecological nice also help in determining the differences and similarities in species.

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Describe the digestion of protein in the alimentary canal

Answers

Answer: Starts with chewing in the mouth.

Explanation: Begins in the mouth by chewing. There are two enzymes in saliva called AMYLASE and LIPASE. These enzymes helps in breaking down of carbohydrates and fats. Then the HCl and enzymes called Proteases break it into smaller chains of amino acids and are then utiliesd by our body for metabolic requirements.

Fossil evidence indicates that horses have gradually increased in size over geologic
time. Which of the following terms best describes this?
a artificial selection
b directional selection
c stabilizing selection
d disruptive selection
e sexual selection

Answers

According to the given statement the following terms best describes this Directional selection.

The correct option is B.

What is an example of fossil evidence?

Examples includes fossilized bones, shells, exoskeletons, animal or microbe imprints in stone, orangish objects, hair, petrified timber, oil, coal, and DNA traces. The fossil record is indeed the collection of all fossils.

What characteristics define fossil evidence?Fossils are the remains of once-living things.Rock is used to create fossils because it can fill in or replace an organism's body or imprint.Sedimentary rock, as opposed to igneous or metamorphic rock, is often the material used to create fossils.

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You just visited your doctor and he suggested you are at risk for heart disease. which type of lipid should you avoid eating large amounts of?

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The worst kind of fat to consume is trans fat. Trans fats, commonly known as trans-fatty acids, enhance bad" cholesterol while also lowering "good" cholesterol, in contrast to normal dietary fats. Heart disease, the number one killer of adults, is increased by a diet high in trans fats.

Which fats, and why, are better for heart health?

Triglycerides, a form of fat that clogs arteries, can be reduced with the use of omega-3 fatty acids. Among the monounsaturated fats are peanut, olive, and canola oils.

Olives, avocados, nuts, and nut butters are additional excellent sources. These lipids have the potential to increase "good" (HDL) cholesterol and lower "bad" (LDL) cholesterol.

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In the f2 of a dihybrid cross involving two independently assorting genes, what proportion of the offspring will be true-breeding?.

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The proportion of the offspring of F2 progeny of dihybrid cross would be 1/4.

The true breeding parents of dihybrid cross of Mendel included rounded yellow and wrinkled green seeds as parental traits. The F2 progeny produced round yellow, round green, wrinkled yellow, and wrinkled green seeds. Therefore, 1/4 progeny of the dihybrid cross produced true breeding traits in the F2 progeny.

According to Mendel's law of independent assortment, the alleles of two or more distinct genes are independently selected into gametes. In other words, an allele for one gene does not affect the allele for another gene that a gamete acquires. It, moreover, produces hybrids of the genes. Dihybrid cross produced phenotypic ratios as 9:3:3:1.

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Paleontologists find a fossil ape with long arms. What type of environment can they infer it inhabited?.

Answers

Woodland is the type of environment can they infer it inhabited for the fossil

How can I train to be a paleontologist?

a degree from an accredited university in geology, earth sciences, paleontology, or a similar field. understanding of conducting field surveys in a variety of, occasionally difficult, meteorological and environmental situations. Ability to create and analyze stratified cut samples from the Earth utilizing large machinery.

Paleontologists are scientists who use fossilized organisms to reconstruct the past of life on Earth. Fossils are traces of previous life on Earth and might be casts or remains of animal bodies (body fossils). Another sort of fossil are traces.

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nitrogenase choose one: a. requires oxygen as an electron acceptor. b. works well in any environment. c. is a relatively small enzyme. d. requires many atp and electrons to reduce n2 to 2nh4 .

Answers

The correct answer is option D.

Nitrogenase requires many ATP molecules and electrons to reduce N2 to 2NH4.

In general, nitrogenase is a nitrogen fixing enzyme produced by particular bacteria such as rhizobacteria and cyanobacteria

Biologically, this enzyme plays a key role in nitrogen fixation process. During this process it converts nitrogen to ammonia.

Living organisms reduce di-nitrogen to ammonia i.e. N2 to 2NH4 by using ATP molecule.

To put it simply, nitrogenase enzyme is the key component of nitrogen cycle that fixes the atmospheric nitrogen and transforms this nitrogen into ammonia which is later used by plants.

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Black fur in rabbits is dominant over brown fur. Cross a homozygous black rabbit with a brown rabbit. (4 pts)
Genotype: Phenotype :
(Create Punnett square pls)

Answers

The genotype and phenotype of the offsprings of crossing a homozygous black rabbit with a brown rabbit is as follows:

Genotype; Bb (4)Phenotype; All black rabbits

What is a punnet square?

A punnet square is a graphical representation used to determine the probability of an offspring expressing a particular genotype.

According to this question, black fur (B) in rabbits is dominant over brown fur (b). if a homozygous black rabbit (BB) with a brown rabbit (bb) as follows:

BB × bb

BB - B and Bbb - b and b

When these two parents genotype cross, all of the offsprings will be heterozygous (Bb) genotype and all black phenotype.

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6. Write a chemical equation for cellular respiration.
coman
Label the molecules involved.

Answers

Answer:

Carbon dioxide+Water Carbon Hydrogen Oxygen+Oxygen

Explanation:

Its chemical equation isCO2 +H2O C6 H12O6 +6O2

In a cell undergoing meiosis, if synaptonemal complexes form or are still present, what process or processes have occurred?.

Answers

The synaptonemal complex , which mediates the pairing of homologous chromosomes,the critical significance in chromosome synapsis and genetic recombination, its exact molecular activity is still unknown.

When during meiosis do Synaptonemal complexes form or are still present?

Nuclear division occurs twice during meiosis, producing four nuclei and typically four daughter cells, each of which has half as many chromosomes as the parent cell.The first divides homologs, whereas the second divides chromatids into individual chromosomes, much like mitosis. When chromosomes of the same type are paired together during meiosis, a biological event called crossing over takes place.Parts of the chromosome can be exchanged when two chromosomes, one from the mother and one from the father, line up.The same genes may be present on the two chromosomes in different versions. During meiotic prophase, the synaptonemal complex (SC), a highly organized proteinaceous structure, forms at the junction of aligned homologous chromosomes.It has been shown that the SC has a role in both the stabilization of homolog pairing and the promotion of interhomolog crossovers (COs). By means of homologous recombination, chromosomal fragments are exchanged (crossover creation).When a cell exits pachytene and during the diplotene stage, the SC disassembles and homologous chromosomal arms separate. Meiosis increases genetic diversityEach gamete has a unique DNA set because of recombination and independent assortment during meiosis.The resultant zygote has a special set of genes as a result. The single option that does not take place during mitosis is crossing across.Crossing over includes the exchange of genetic material between homologous chromosomes and takes place during prophase I of meiosis.Tetrad formation is necessary for this, which does not take place during mitosis. New allele combinations are created in the progeny by recombination during meiosis.Starting at the "four-strand" stage, one homologous pair of chromosomes is shown.In a chromatid, each line represents a duplex DNA molecule

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which is structure is correctly paired with its ploidy level? group of answer choices megaspore: diploid microsporangium: haploid megasporocyte: diploid microspore: diploid

Answers

The ploidy level is correctly paired with

a. microsporangium: haploid

This is because the microsporangium as a spore is haploid cell but it is derived from a diploid cell.

Here megaspore should be haploid

Microspore: haploid

Megasporocyte: haploid

Hence the correct answer is a. Microsporangium: haploid.

What are the different ploidy levels of an ovule?

The nucellus, a collection of parenchymatous cells, makes up the ovule's body. comparable to megasporangium (2n). A diploid(2n) cell called a megaspore mother cell, also known as a megasporocyte, goes through meiosis to create a linear tetrad of four haploid megaspores (n). The only functional megaspore often found is the chalazal megaspore, with the other three degenerating.

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What is the mass of a crate if a force of 200 N causes it to accelerate at 8 m/s2? (Formula: F=ma)

25 kg
192 kg
208 kg
16 kg
M

Answers

Mass is 25kg because m=200N/8m/s^2=25

6. One function of the skeletal system is protection. (a) State two other functions of the skeletal system​

Answers

Answer: Structure
                And
              Support

Explanation: The skeleton provides framework to muscles and organs
it helps with fluid movement. It provides correct shape to the body. The bones also help to make blood cells

What is the phrase that is most closely associated with natural selection?

Answers

Natural selection is the process in which the population with the best adaptation is favorable. It is usually associated with the phrase "survival of the fittest".

Explain how Pasteur’s experiment was set up and what we determined from it.

Answers

Pasteur's experiment determined that micro-organisms could not arise from inanimate matter under the conditions prevailing on Earth during Pasteur's lifetime.

Pasteur set up broth and added the nutrient broth to the bottle, the bottleneck he bent into an S-shape, and boiled the broth to kill any microbes present. After the broth had been sterilized, Pasteur broke off the swan necks of several bottles to expose the nutrient broth they contained to the air from above.

The remaining piston remained intact. Broth quickly turned cloudy. However, the broth in the intact flask remained clear. Without the introduction of dust to which microbes could move, life would not have arisen. Pasteur thus disproved the concept of spontaneous generation.

Pasteur's experiments showed that conditions similar to those on primordial Earth may have existed or now exist on other celestial bodies in our solar system and elsewhere.

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What effect does adding solute have on the solute potential component (Ys)

Answers

Answer:

Adding more solute will increase the solute potential and decrease water potential by making it more negative.

Explanation:

nori is produced: a. through genetic modification of algae. b. by growing algae first in starter cultures, then in an estuary, and then made into sheets that are toasted. c. from yeast fermentation of partially digested algae. d. by an edible mushroom.

Answers

The correct answer is the option c from yeast fermentation of partially digested algae

The majority of fungus have several cells. A single-celled fungus known just as yeast typically develops on stale bread.

Mold, mushrooms, and algae are the only other fungus that have many cells. Fungi have a vast, multicellular hyphal network. Tubular cells make up the Hyphae filaments.

But because yeast is a single-celled fungus, it lacks hyphae.

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Which statements describe the cell membrane? Check all that apply. The cell membrane is very selective. The cell membrane lets anything enter the cell. The cell membrane lets anything leave the cell. The cell membrane is a protective layer surrounding a cell. The cell membrane allows waste to leave the cell.

Answers

Answer:

the cell membrane is very selective.

The cell membrane is a protective layer surrounding a cell.

The cell membrane allows waste to leave the cell.

Explanation: the cell membrane is a semipermeable barrier that separates the cell from its surrounding environment. Thus, the cell membrane helps the cell to maintain steady constant cellular conditions.

The tendency to respond to a conditioned stimulus that is similar, but not identical, to the original conditioned stimulus is called _____.

Answers

The tendency to respond to a conditioned stimulus that is similar, but not identical, to the original conditioned stimulus is called discrimination.

A stimulus is a "detectable change (physical or chemical) in an organism's environment that induces some functional activity," according to the definition given . For instance, sunlight serves as a stimulus for plants and bodies, encouraging them to grow or move in its direction. High temperatures are another example of a stimulus since they cause our bodies to start sweating and cool down as a result.

Researchers who study human behaviour frequently use the phrase stimulus (or its plural stimuli). The activities, behaviours, or procedures that cause the human mind to react are known as stimuli in psychology. Visual, aural, physical, or a combination of these may be used as the stimuli. The use of stimuli in the management of achluophobia is one instance (fear of the dark).

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you might be interested to know how many different types of bacteria live on the shower curtain in your bathroom. what is the most efficient method for finding out?

Answers

Regular morphological and biochemical tests are used to identify bacteria, and where necessary, additional testing like serotyping and antibiotic inhibition patterns are added.

What are bacteria?

To distinguish one organism from another and to classify similar organisms according to standards of relevance to microbiologists or other scientists, bacteria are classed and identified.

The species level is the most significant level in this sort of classification.

Everybody should understand what a species' name means.

Strains and subgroups within a species can vary by the diseases they cause, their habitats in the environment, and a variety of other traits.

In the past, species were established using these criteria, which, while being very useful to clinical microbiologists and doctors, are insufficient to establish a species.

In addition to DNA relatedness, biochemical and other phenotypic criteria should be used to confirm the existence of current species and to create new species.

Countless phenotypic traits are used to classify strains in numerical or phenetic techniques to classification.

In order to group strains based on their overall genetic similarity, DNA relatedness is used.

Therefore, regular morphological and biochemical tests are used to identify bacteria, and where necessary, additional testing like serotyping and antibiotic inhibition patterns are added.

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In an office building, 54 office are currently being rented, this represent 30% of the total units. how many offices are in the building two students each use a random number generator to pick an integer between 1 and 8 inclusive. what is the probability that they pick the same number? (enter your answer as a fraction.) How do people pay their respects to Dark tourisms sites Please step-by-step help me how much of a circle is shaded you have invested 20 pecent of you portfolio in homer, inc, 40 percent in marge co., and 20 percent in bart resources. what is the expected return of your portfolio In ABC, B = 51, b = 35, and a = 36. What are the two possible values for angle A to the nearest tenth of a degree?Select both correct answers. A newsletter publisher believes that more than 31% of their readers own a Rolls Royce. Is there sufficient evidence at the 0.01 level to substantiate the publisher's claim? State the null and alternative hypotheses for the above scenario. Answer A new vintage womens' clothing store has just opened up in downtownGreenwood. The shop carries clothing styles' from several different decadesand is sure to appeal to customers with eclectic tastes. Please help. A circle has a diameter of 18 inches. A central angle of 75 intercepts an arc of the circle. What is the intercepted arc length to the nearest tenth of an inch?A.) 2.08 inchesB.) 3.8 inchesC.) 11.8 inchesD.) 23.6 inches if a certain number is added to both the numerator and denominator of the fraction 8/9, the result is 6/7. Find the numer. The variables x and y vary directly. Use values to write an equation that relates x and y. y=25;x=5And y=20;x=12 Heraldo starts a push-up challenge, and on the first day does 10 pushups, the second day he does 13, the third day he does 16, and so on.Write the recursive definition for this sequence, and then find how many pushups he should do on the 20th day, if he continues. This question is from a MATH extra credit assignment, so unless I accidentally clicked on a subject other than maths... This question is also not from a test. Please help me if you can. Thank you if you do :) Dr. Hughes instructs her students to solve the equation, 2x - 5y = -20, for y. What is the correct first step?Add +5y to both sides of the equation.O Add -2x to both sides of the equation.Add +2x to both sides of the equation.Divide each term in the equation by -5. I need to find the radius and the diameter but I don't understand. the government has decided to give governmental grants to community colleges that offer job training for individuals who have recently been laid off due to their outmoded skills. the government is trying to reduce the level of Which equation could be represented by the number line? A. 3 OB.-4 5=1 OC. 1+ -5)= OD. -3+4 -1 In December, 64 teams qualify for a basketball tournament. After each round, half of the teams are eliminated.Which exponential function can be used to find the number of teams left after a rounds, where is a whole number?O f(x) = (64)O f(x) =(x)64O f(x) = 64 () f(x) = x() Before using a solution of n a o h as titrant in a titration experiment, you should standardize the solution. Standardization is the process of titrating a solution prepared from. 9) solve using substitution method and check your answer:4x - 3y + 2z = 16- 4y - Z = 7= 146x - y