D. the diencephalon is where the thalamus is located
what is the role of antibiotics is atropine
Atropine is a prescription medicine that is used to treat the symptoms of low heart rate (bradycardia), reduce salivation and bronchial secretions before surgery, or as an antidote for overdose of cholinergic drugs or mushroom poisoning. Atropine may be used alone or with other medications.
This element can form a wide variety of substances, including long chains. The different substances it forms are central to the molecules found in living things.What element it this?a) carbonb) oxygenc) hydrogend) nitrogen
Introduction to Biology: Biomolecules
In the options, they are listing the four more abundant elements in living beings: carbon (C), hydrogen (H), nitrogen (N), and oxygen (O). Given that all of them are essential to forming the molecules found in living beings, we need to check their chemical properties, because they are telling us that is an element that can form long chains.
• Hydrogen, has only 1 electron and can form one bond at a time, so it cannot form long chains
,• At normal conditions, ,Oxygen, form molecules of only 2 oxygen atoms (O₂), not long chains.
,• Nitrogen, is a similar case to oxygen because at standard temperature and pressure it forms a diatomic gas (N₂)
,• Carbon ,has ,4 atoms that can form covalent chemical bonds,, which allows it to form ,polymers, at, standard temperatures.
This means the correct answer is a) carbon.
Read each example and decide what the resulting effect on the gene pool of that population would be.
A zebra migrates to join a different herd of zebras.
Competition for sunlight leads to taller trees.
The DNA of a snake changes to make its venom stronger.
A grassfire randomly sweeps through a population of buffalo
and kills most of the animals.
Being a migratory mammal, the zebra moves to several herds as it acquires newer alleles from other populations.
Taller trees result from the fight for sunlight, which may benefit particular alleles. New alleles may be produced from DNA when a snake's DNA is altered to make it deadly. Buffalo rushed across the grass, picking random alleles.
What impact do changes in a population's gene pool have?The size of a population's gene pool is assumed to have some bearing on its capacity for adaptation and evolution. For instance, a population's potential for future adaptability to shifting environmental conditions may be increased by a broad and diversified gene pool.
Genetic variety can be increased by new genes and alleles being created as a result of gene duplication, mutation, or other events.
When individuals leave their family unit or herd to join other populations, this is known as gene flow in animals. New alleles are introduced into populations when people move in and out.
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Answer:
1. B
2. D
3. A
4. C
Explanation:
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What is evolution????
Biologic evolution is a scientific theory supported by the pshysical evidence of fossils. It explains the changes of living organisms from the first cell to the generation of the many different ways of living forms that exist, including the mechanisms that could have led to them.
Complete a Punnett square on your own in order to answer the question: A purple flowered daisy plant is crossed with a red flowered daisy plant. What is the probability of producing a purple flowered daisy plant?
A cross between a purple flower (BR) and a red flower (RR) will result to:
BR - 50% purple flowers
RR - 50% red flowers
Purple flower is a cross between blue and red flower which is a dilution of two dominant traits (blue and red color) resulting to a new heterozygous phenotype (purple flower).
Which relationship is an example of predation?
An example of predation is D) Chickens peck at the ground and eat many types of insects.
Predation is a type of biological interaction in which a predator feeds on its prey. In the above example, chickens are the predators that make insects their prey.
In order for an ecosystem to be healthy, predators are essential. There is more food available for the survival and success of healthy prey species after predators take away vulnerable prey, such as the young, old, sick, injured, or very young. Predators also aid in reducing the size of prey populations, which slows the spread of illness.
What are the types of biological interaction?
Mutualism, commensalism, competition, and predation are the four basic forms of two-way biological interactions between species found in ecological webs (which include herbivory and parasitism).
Therefore, D) Chickens pecking at the ground and eating many types of insects is an example of predation.
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Atrazine is one of the most widely used herbicides throughoutthe world. Some studies have shown that the chemical has affectedthe sexual development of frogs, most notably, leopard frogs (Rana pipiens).femalemaleOne study suggested that male tadpoles exposed to the herbicide develop into female frogs. These mutated female frogs, accordingto the study, have the ability to reproduce with other males. However, the mutated frogs can only produce male offspring.This case demonstrates howA. the activities of organisms can change the environments in which they live.OB. chemicals introduced to the environment by humans affect only the organisms they were designed to affect.OC. factors in the environment can change the characteristics of organisms.D. chemicals introduced to the environment by humans have no effect on the ecosystem.
The case the exersice tells is an example of how introduced subtances to a particular environment have a negative impact on the species' health, as states the C answer option: "factors in the environment can change the characteristic
Cognitive Development
During what phase of the cell cycle do chromosomes replicate?
The phase of the cell cycle in which chromosomes replicate is the S phase.
What is Cell cycle?This is referred to as the series of events that take place in a cell during the process of reproduction an d in this scenario , the parent cells divide which gives rise to two daughter cells. Chromosome on the other hand is a thread like structure which is made up of DNA.
The S phase occurs between G₁ phase and G₂ phase and is an important process in mitosis as the DNA in the nucleus are synthesized and the traits present are usually passed to the offspring.
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Look up one prion disease and describe it here. What population does this disease infect? How is it usually transmitted? How common is it? What are the major symptoms? Be sure to cite your sources.
Kuru is a Transmissible spongiform encephalopathy which was formerly common among the Fore people of Papua New Guinea. This disease is caused by a prion, i.e., a protein that can trigger other proteins in the brain to fold abnormally. The abnormally folded proteins in the brain cause neurodegeneration which ultimately lead to death. The main symptom of the Kuru disease is the loss of coordination and control over the muscle movements. The transmission of Kuru was because of a ritual in which Fore people consumed body parts of their family members just after their death. The Fore people stopped to eat human meat in the early 1960s, causing the kuru epidemic to decline dramatically. It is not certainly known if the last kuru victim died in 2005 or 2009.
answer part seven and eight can help me move onto the next problem
To complete both parts of the questions we can say that: meiosis is the type of cell division used to form the gamete cells, the process of meiosis produces four haploid cells that contain a single copy of each chromosome, being four cells with 23 chromosomes (structure carrying genetic information found inside the nucleus of a cell) each in the case of humans. About the second part of the question that is talking about mutations, the only statement that is not true is that all the mutations are harmful.
. you want to design a breathing machine that will bring 500 ml of air into the lungs. you begin with 100 ml of air at 2 atm of pressure. how would you change the pressure in your machine to accomplish your goal?
The pressure would be changed to 4 atm in the machine to bring 500 ml of air into the lungs.
What is pressure and what is breathing and why the pressure is brought up to 4 atm?Breathing is a biological phenomena , biological practice to inhale the air and exhale CO2 through lungs.In the process the inhalation lasts for 3 sec and exhalation for 3.5 seconds of time.Pressure is the quantity representing the force per unit area of the region in a considered time.To design a machine bringing 500 ml of the air into the lungs, initially it was at 100 ml of air at 2 atm .Hence the pressure would be changed to 4 atm in the machine to bring 500 ml of air into the lungs.To know more about breathing visit:
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1.90 Particles or energy given off in a nuclear reaction are called
Answer: The answer to this would be heat and radiation
Explanation: radiation would probably be the best answer
Why might protists like a euglena or algae not have a gullet or oral groove?
Protozoans like paramecium have protoplasmic invasions called gullets, which aid in these species' food uptake and digesting.
What are protists?Protists have eukaryotic cells, as opposed to bacteria, these organisms feature cytoplasmic membrane-bound components as well as a nucleus that is membrane-bound.
Another kind of protists is zooflagellates, they resemble animals and use flagella to move. Flagella are whip-like organelles that rapidly spin and help an organism move through the water like a boat's propeller.
The majority of zooflagellates have one to eight flagella that aid in movement, protists do not belong to a monophyletic group of creatures.
Therefore, The paramecium's gullet functions as the buccal cavity where food is transformed into food vacuoles for digestion.
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primates have long growth and development periods because:
Primates have long growth and development periods because: they have larger brains and higher intelligence as compared to other organisms.
Primates is the order of the class Mammalia. They are different and more advanced from all the other animals. They have more intelligence, five-digit feet and hand, more vision power than smelling power and slower growth. Their life span is also very large.
Brain is the most complex and largest organ of the body. It is the master regulator of all the actions of the body. The brain is divided into left and right hemispheres. There are three sections of the brain: forebrain, midbrain and hindbrain.
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number 1 in the diagram above is a representation of a/an
If number 1 is the single strand within the nucleus, it is mARN or messenger ARN. mARN has the genetic information needed to make proteins and carries this information from the DNA nucleus of the cell, to the cytoplasm where proteins are made.
I need help with this practice problem My questions are located at the top of the pic
Hi. We just had a session with this same question is there any doubt left?
I WILL MARK BRAINLIST What’s the correct answer answer asap for brainlist please someone please
Answer: C
Explanation:
People with diabetes have several medical concerns. One concern Is hyperglycemia (high blood sugar concentrations). Hyperglycemla for extended times can cause damage to the cells of blood vessels, leading to risk of heart attock, stroke, kidney disease, and more. Using osmosis, explain why hyperglycemid would be clamaging to blood vessel cells.
Diabetes can cause high blood glucose levels, which can harm your blood vessels as well as the nerves that regulate your heart and blood vessels. Heart disease may eventually result from this injury.
Those who have diabetes typically have heart disease at a younger age than those who do not. When compared to those without diabetes, adults with diabetes have approximately twice the risk of developing heart disease or stroke.
The good news is that actions you take to control your diabetes can also help reduce your risk of developing heart disease or stroke.
Why is the blood sugar level of a diabetic individual so high?However, after the majority of the cells that generate insulin are destroyed, the pancreas is unable to produce enough of it, which prevents the glucose from entering the cells and causes an excess of glucose to be produced of dissolved blood sugar floating through the circulation. Risky complications may result from this. The name of this ailment is diabetic ketoacidosis.
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Explain what is meant by “dimorphic” and how this term applies to pathogenic fungi.
Dimorphism is the occurence of the existence of two forms, in the case of sexual dimorphism the existence of two distinct types of a individual. The dimorphism among fungi is the capacity to convert between two specific morphological forms, like hyphae and yeast, the Ascomycota phylum have dimorphic organism. The dimorphism in fungi can happen depending of environmental condictions or situations, like an yeast in cold temperatures turning into mold.
I need help with this practice problem solving *I will send another picture of my question
answer and explanation
what happens when change in the dna is not repaired in a cell that will become an egg or sperm?
What happens when a change in the DNA of an egg or sperm is not repair will depend on the location of the mutation. This means that whether the changed DNA region is a gene, a regulating sequence or "junk" DNA, the cell can survive or not. In case it survives, the replaced nucleotide may not altere the protein it codifies, resulting in a silent mutation, or it can cause altereations in the functioning even though not being lethal.
Water molecules moves out of a red blood cell and its shrivels is an example of.
A Protein Channel
B Simple Diffusion
C Facilitated Diffusion
D Osmosis
Answer: D Osmosis
Explanation: Water moves into and out of cells by osmosis
A scientist claims that Elysia chlorotica, a species of sea slug, is capable of photosynthesis. Which of the following observations provides the best evidence to support the claim?1) Elysia chlorotica grows in the dark when food sources are available.2) Elysia chlorotica grows faster when exposed to light than when placed in the dark.3) Elysia chlorotica will die if not exposed to light.4) Elysia chlorotica grows when exposed to light in the absence of other food sources.
The observation which best supports the claim that Elysia chlorotica is capable of photosynthesis is number 4. The ability to photosynthesize doesn't mean it won't be able to eat other food sources when abailable, but that it will be able to survive and grow in abscense of food sources if it is exposed to light, as light is necessary to obtain the energy for the process of photosyntesis.
How can I find Ways in which we can prevent Deforestation and how can I find solutions given in Specific countries?
A way deforestation can be prevented could be with socialization campaigns that help more people know, for example, the impacts these practices have upon the wildlife. The solution in specific countries can vary in the sense that different governments implement different practices and depend on the forest's resources differently.
How far apart has Africa and North America move apart since 2001
Africa and North America have moved apart since 2001 by a total of about 21 inches.
What is a Continent?This comprises of about seven landmasses on the earth which is usually very large and discrete and comprises of different countries. Examples include Africa, Asia, North America, South America etc.
Continents in the world such as Africa and North America move apart since 2001 at a rate of 1 inch per year. Since we were told that it occurred in 2001 then the total years in which it occurred is 21 then =
1 inch × 21 = 21 inches.
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Ligament hold A. Bone to boneB. Bone to muscles C. Tendons to bonesD. Cartilage to tendons
Answer: A.
Explanation: A ligament is a fibrous tissue that connects bone to bone. Usually holds to serve as a structure together and keep them stable.
Which is the best definition of activation energy?
A) the energy required to end a chemical reaction
B) the energy required to bind a substrate to an active site
C) the energy required to form or break the bonds of reactant molecules
D) the energy required to re-form bonds in product molecules
Activation energy is the energy required to form or break the bonds of reactant molecules (option C).
What is activation energy?Activation energy of a chemical reaction is the energy required to initiate a reaction.
For example, the flame from the fuse of a firecracker provides a small initial amount of energy, after which the explosive reaction proceeds by itself, releasing a considerably larger quantity of energy.
The activation energy of a chemical reaction is strictly required to make a reaction occur i.e. conversion of reactants to products.
Therefore, the energy needed to break the chemical bonds of a reactant molecule is the activation energy.
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What’s the correct answer answer asap for brainlist
I need help with this question please and thank you, I’m not sure if I’m correct
In the core of cells, we can find the nucleus, which controls many of the cell functions and contains our DNA, that is found in chromosomes, thread-like structures made up of packaged DNA. The DNA, in turns, carries genes, sequences of nucleotides responsible for a product, which can be either an RNA molecule or a protein.
