Answer:
b
Explanation:
The answer to it is called as solubility which accounts for the property where the salt gets dissolved in water. The salts get dissolved in water such that the water is having a property to solubilise the salts in it.
What is a type of solvent is water like ?It is the type of polar solvent which is hydrogen ion that is positive in nature with the hydroxide ion which is negative in charge.
Water molecules just pulls sodium and the chloride ions that are just apart which are just breaking the ionic bond that are holding them just together. After salt compounds which are just pulled apart from each other , sodium and chloride atoms are although surrounded by the water molecules . Once this happens then salt is just dissolved which is just resulting in the homogeneous solution.
Water dissolves the salt because positive part of the water molecules attracts negative chloride ions and negative part of the water molecules attracts the positive part that is the sodium ions. The amount of the substance which can dissolve itself in liquid at the particular type of temperature which is called as solubility of substance.
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1. The type of environment that is suitable for a certain species is its
A. habitat
B. community
C. geographical range
D. population
Answer:
Habitat
Explanation:
Definition: he natural home or environment of an animal, plant, or other organism.
"wild chimps in their natural habitat"
A scientist argues that the Sahara Desert used to be part of the ocean. What piece of evidence would best help support her argument?
options:
A:Finding a fossil of a shark in the desert
B:Finding evidence of past earthquakes.
C:Finding a fossil of an arctic plant.
D:No evidence would support it. If it’s a desert now, it’s always been a desert.
IF RIGHT I GIVE BRAINLIST
Answer: A finding a fossil of a shark in the desert .
Explanation: with fossils we can dna test them and trace them back millions of years . If you find a fossil of a shark in the desert a dna test may be conducted and this can prove the point .
1 point
14. A scientist is using potassium-40, which is a radioactive isotope of
potassium, to discover the absolute age of a fossil by radiometric dating.
The scientist determines that about three-fourths of the original
potassium-40 atoms in the fossil now remain in the fossil. What additional
information is necessary for the scientist to determine the absolute age of
the fossil? *
the half-life of potassium-40
O O
the identity of an index fossil
the atomic mass of potassium-40
the total mass of the fossil
Answer: c. the ratio of the mass of potassium-40 to stable potassium isotopes
Explanation:
Where can you find the human sex chromosomes in a karyotype
Answer: According to international conventions, human autosomes, or non-sex chromosomes, are numbered from 1 to 22, in descending order by size, with the exceptions of chromosomes 21 and 22, the former actually being the smallest autosome. The sex chromosomes are generally placed at the end of a karyogram.
Which region of the spine is highlighted in yellow in the image below?
A diagram of the spine.
sacrum
thoracic
lumbar
cervical
Answer:
The answer is lumbar.
What turns on and off the lac operon
Answer: off: lac repressor, on: CAP
Explanation:
The hierarchical order of organization of multicellular organisms is shown below.
cells → tissues → organs →
What level of organization is next in the hierarchy?
Can males be carriers? Explain.
Normal traits -
Sex-linked traits -
Answer:
yes due to any kind of sexual activity, if the person has a sexual disease it can be transferred to a male via orally or vaginally
The sun shines down on this family as they play on the beach. What is this called?
A) conduction
B) no answer text provided
C) convection
D) radiation
Answer:
i think that is radiation
Explanation:
The sun shines down on this family as they play on the beach. is this called radiation. Option D. This is further explained below.
What is radiation?Generally, the removal of electromagnetic waves energy, particularly magnified energy particles that induce ionization.
In conclusion, The sun radiates and its energy is called the solar waves.
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Identify the organelles in the cell to the right. A b c d e f
Answer:
A) Cytoplasm
B) Chloroplast
C) Plasma membrane
D) Cell membrane
E) Smooth endoplasmic reticulum & Rough endoplasmic reticulum
F) Cell wall
Explanation:
Look at the picture below
Which of the following is an example of selective permeability?
a magnet
a window screen
a milk jug
a bottle rocket
A window screen is an example of selective permeability.
• Selective permeability is a characteristic and function of the cell membrane, which plays an important role in sustaining homeostasis by monitoring the passage of certain substances while inhibiting others from invading the cell.
• Of the given options, a window screen is an example of selective permeability.
• A window screen is also known as the bug screen, insect screen, wire mesh, or fly screen is created to cover the window opening.
• It is generally a mesh formed of fiberglass, metal, pieces of plastics, plastic wire, and pieces of metal or wood.
• It functions to prevent the entry of bugs, birds, debris, and other animals into the building, however, it does not prevent the entry of fresh air.
Thus, a window screen is an example of selective permeability.
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Read the scenario below and answer the questions that follow for 2 points each: Two Siamese and three Persian cats survive a shipwreck and are carried on driftwood to a previously uninhabited tropical island. All five cats have normal ears, but one carries the recessive allele f or folded ears, his genotype is Ff. The other four cats are not carriers, so their genotype is FF. Thus there are 10 total alleles within this population, 9 being F alleles and 1 being f. So, the frequencies are 9/10 or 0.90 for F the allele and 1/10 or 0.10 for the f allele. 1. Identify ONE of the five conditions required for Hardy-Weinberg equilibrium that this population of cats does not meet. 2. If you assume Hardy-Weinberg equilibrium for this population, what would be the frequencies of the two alleles after 10 generations? 3. Knowing that the frequency of the folded ears genotype ff is equal to to the frequency of the f allele squared (0.1 x 0.1), how many cats would have folded ears if after 10 generations there are 2,500 cats on the island?
Answer:
c
Explanation:
According to H-W, a population is in equilibrium if it meets five conditions, and have the same allelic and genotypic frequencies through many generations. 1) Infinite population size / 2) p=0.9 and q=0.1 / 3) 25 cats
-------------------------------------------------------
Let us review some theoretical framework about Hardy-Weinberg equilibrium, while we answer the questions.
⇒ Hardy-Weinberg assumption for a population in equilibrium:
Random matings No superposed generations No mutations No migration Infinite population size ⇒ No genetic drift No natural selectionQ1. Identify ONE of the five conditions required for Hardy-Weinberg equilibrium that this population of cats does not meet.
Since this population is composed of two Siamese and three Persian cats, the condition that this population does not meet is infinite population size.
This population is under the effect of genetic drift for being only 5 individuals colonizing an island.
*****************
⇒ According to Hardy-Weinberg, p and q represent the allelic frequencies in a locus, referring to the allelic dominant or recessive forms.
The genotypic frequencies after one generation are p² (H0m0zyg0us dominant), 2pq (Heter0zyg0us), q² (H0m0zyg0us recessive).
Populations in H-W equilibrium will get the same allelic frequencies generation after generation.
The sum of these allelic frequencies equals 1, this is p + q = 1. The genotypic frequencies sum also equals 1, this is p² + 2pq + q² = 1.
Being
p the dominant allelic frequency, q the recessive allelic frequency, p² the h0m0zyg0us dominant genotypic frequency q² the h0m0zyg0us recessive genotypic frequency 2pq the heter0zyg0us genotypic frequencyQ2. If you assume Hardy-Weinberg equilibrium for this population, what would be the frequencies of the two alleles after 10 generations?
Allelic frequencies, f(x), are
f(F) = p = 0.9f(f) = q = 0.1If this population is in H-W equilibrium, the allelic frequency will be the same through many generations.
So, after 10 generations, the allelic frequencies will still be p = 0.9 and q = 0.1.
Q3. Knowing that the frequency of the folded ears genotype ff is equal to to the frequency of the f allele squared (0.1 x 0.1), how many cats would have folded ears if after 10 generations there are 2,500 cats on the island?
We know that,
f(F) = p = 0.9f(f) = q = 0.1N = 2500 catsTo get the number of individuals with folded phenotype, we should get the phenotypic frequency, which equals the genotypic frequency because it is the recessive phenotype.
Genotypic and Phenotypic Frequency
F(ff) = q² = 0.1 = 0.01Now that we have the phenotypic frequency, we just need to multiply it by the total number of individuals in the population, N.
N = 2500 individuals
Individuals with folded ears = 0.01 x 2500 = 25So, after 10 generations and a population size of 2500 cats, there will be 25 folded-eared individuals.
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Which of the following is not a cnidarian?
a. hydra
b. sea anemone
c. clam
d. coral
Answer:
clams is NOT A CNIDARIAN
Explanation:
Hope this helps!!
Answer:
coral
Explanation:
it is an infunction of the lungs caused by bacteria virus fungi or protozoa in rare condition
Answer:
Pneumonia is an infection of the lungs caused by bacteria virus fungi or protozoa in rare condition.
When the neurotransmitter GABA binds to its receptor's which way does CI chloride move in what is the consequences of GABA binding
Answer:
towards the inside hyperpolarising the neuron
Explanation:
GABA(gamma amino butyric acid) is an inhibitor neurotransimitter. When it attaches to the post-synaptic segment it causes an influx of anions that makes is harder to generate an action potential.
What type of atmospheric conditions does climate describe? (5 points)
Answer: Averge
Explanation:
Organisms that perform chemosynthesis can be referred to as... (Select all that apply...)
Phototrophs
Heterotrophs
Autotrophs
Chemotrophs
Which example is a body fossil?
A. dinosaur bone
B. an ornithopod track
C. shrimp burrow
D. dinosaur footprint
Answer:
A.) Dinosaur Bone
should be the answer
Which symptom would an individual with a narrow foramen most likely experience?
A.
back pain from the compressed nerves
B.
lower blood pressure from increased blood flow
C.
poor posture from loss of tendon attachment sites
D.
increased flexibility from the constriction of muscle
Answer:
its A. back pain from the compressed nerves
4. Assume that producers in an ecosystem have 1,000,000 kilocalories of en
ergy. How much energy is available to primary consumers? How much is available to the quaternary consumers?
Answer:
If an ecosystem has 1,000,000 kilocalories of energy in the producers only 100,000 kilocalories of energy would be available to the primary consumers.
Explanation:
Distinguish the steps involved in the impact theory of lunar formation.
The giant impact theory — the idea that a catastrophic collision about 4.5 billion years ago between Earth and a protoplanet about half Earth's size created a disk of molten rock, gas and debris that consolidated to form the moon — was first set forth in the mid-1970s.
The most normally invoked grounds for lunar formation maintain that a giant protoplanet is sometimes called Theia.
What is lunar formation?
When the Chemical differentiation and crystallization delivered dense material that sank to the bottom of the lunar magma ocean and a spirited crust that created the lunar highlands.
The numerous commonly invoked justification for lunar formation holds that a giant protoplanet, sometimes called Theia, struck the recently formed Earth 4.5 billion years heretofore and formed a cloud of debris that fast coalesced into the moon.
But that hypothesis has mourned from a nagging flaw. Simulations of moon-forming crashes have shown Theia would have stood as the immediate donor of lunar material.
But commentaries of Apollo moon rocks have authenticated that the moon appears in many ways a chemical clone of Earth, not Theia.
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Every fall, Mrs. Rockel and her family rake over 100 bags of leaves. This year we raked only 60 bags, a considerable decrease compared to the past several years. Using your knowledge of the process of photosynthesis, construct a logical hypothesis to explain why.
Please help
Answer:
''Photosynthesis directly affect the vegetative growth of plants''
Explanation:
''Photosynthesis directly affect the vegetative growth of plants'' is the hypothesis that shows decrease occur in the bags of leaves. Photosynthesis is directly related to vegetative growth because Photosynthesis is a process of making food by using sunlight, this food is used by the plant to bear more number of leaves so if the process of photosynthesis is done properly, no decrease occur in the bags of leaves.
Anybody who helps me with this gets 10 brainly points.
Answer:
Explanation: in tracking the zebra the scientists are trying to monitor the movement of these zebras, in so doing can have a comprehensive understanding of what happens to these zebras during the movement.
A lab technique called centrifugation of a cell results in the rupture of the cell membrane and its contents compacting into a pellet in the bottom of the tube. Bathing this pellet with a glucose solution yields metabolic activity including the production of ATP. Which is most likely in the pellet
Answer: mitochondria
Explanation:
In all body cells, with the exception of a few, mitochondria are present. Depending on the function of that type of cell, there are typically several mitochondria present in one cell. Mitochondria are found along with other organelles of the cell in the cytoplasm of cells.
What is the role of ATP in the process of active transport?
A- It provides the energy that cells need to move molecules against a concentration gradient.
B- It lengthens the fatty acid chains in the cell membrane.
С- It weakens the cell membrane, allowing molecules to pass through more easily.
D- It provides the energy to transport the cell in its environment.
Answer:
A
Explanation:
It provides energy to move molecules against the concentration gradient.
The role of ATP in the process of active transport is it provides the energy that cells need to move molecules against a concentration gradient. The correct option is A.
What is active transport?Active transport occurs when a molecule moves against the concentration gradient from an area of lower concentration to a region of greater concentration. Because active transport involves moving biochemicals from low-concentration locations to high-concentration areas, it requires chemical energy.
The movement of macromolecules like proteins and lipids into and out of the cell depends heavily on ATP. The energy needed for active transport mechanisms to move such molecules over a concentration gradient is provided by the hydrolysis of ATP.
Therefore, the correct option is A. It provides the energy that cells need to move molecules against a concentration gradient.
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Which mantle hot spot is correctly matched to its overlying tectonic plate?
Answer:
Yellowstone Hot Spot-North American Plate
Explanation:
Yellowstone Hot Spot-North American Plate is correctly matched to its overlying tectonic plate.
What are the functions of tectonic plates?Plate tectonics is the generally accepted scientific theory that considers the Earth's lithosphere to comprise a number of large tectonic plates which have been slowly moving since about 3.4 billion years ago.
There are seven major plates: African, Antarctic, Eurasian, Indo-Australian, North American, Pacific and South American.
The theory of plate tectonics revolutionized the earth sciences by explaining how the movement of geologic plates causes mountain building, volcanoes, and earthquakes.
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Read the paragraph and then answer the question.
A giraffe has to stretch its neck to reach leaves for food. Over time, the giraffe's neck gets longer from being stretched. The giraffe will then pass on this elongated neck to its children.
Which scientist would have agreed with this explanation?
Answer:
B- Lamarck
Explanation:
Answer: B..............................
What else erupts besides lava?? PLEASE SOMEONE HELP ME ASAP
Answer:
Smoke would make sense but I cant be sure. Is it a multiple choice question?
(also it could be water from a geyser)
The end result of the formation of the female gamete is? A. The formation of 4 daughter cells identical to the mother. B. An ootid and 3 disintegrating polar bodies. C. 4 identical haploid cells. D. 2 daughter cells identical to the mother.
Answer:
C
Explanation:
bc i did it and got it correct:)
Where do sperm mature?
A. Vas deferens
B. Urethra
C. Epididymis
D. Seminiferous tubules
Answer: Epididymis
Explanation:
This is where the sperm matures at
