Answer:
Answers are below.
Explanation:
Advantages:
1. Could reduce the need for pesticides.
2. It may improve the nutrient composition and quality of food.
3. Might be able to resist pests and diseases.
4. Could find cures and medicine.
5. Artificially implanting DNA from one species to another can save many, many years of research.
Disadvantages.
1. The testing often involves performing experiments upon animals, which some people feel is a breach of animal rights.
2. Genetically Modified Organisms could affect those with allergies in many ways.
3. It could spread undesirable diseases or start an epidemic.
4. Often GMO products are not clearly labelled, meaning people do not have the choice to decide whether or not they wish to consume GMO products.
5. Transgenic modification produces organism types which would never occur naturally, making them highly unpredictable.
Answer:
Salivating at the sight of food is an example of unconditioned response.
Evolution can also influence the acquisition of conditioned/learned response.
Animals learn to avoid eating things that are harmful or cause illness.
Monkeys can more easily be conditioned to fear snakes than to fear koalas.
Explanation:
- <u><em>Unconditioned stimuli</em></u>: Biologically significant stimuli that provoke an unlearned or reflex reaction. For example, food is an unconditioned stimulus.
- <u><em>Conditioned stimuli</em></u>: neutral, inoquos or biologically not significant stimuli.
- <u><em>Unconditioned Responses</em></u>: Unlearned response that is triggered by reflex because of an unconditioned stimulus. An example is salivating.
- <u><em>Conditioned Responses:</em></u> These are provoked by conditioned stimuli. This refers to a learned response that reflects the association between conditioned and unconditioned stimuli.
Initially, an unconditioned stimulus does not provoke any response, but after enough exposition to conditioned and unconditioned stimuli together, the simple presence of unconditioned stimuli induces conditioned responses. In this aspect, the subject has learned to predict or to anticipate the unconditioned stimulus.
Animals also learn to avoid tastes that might cause them illness or might be harmful to them, and so they also learn to ignore visual or auditory sings that help them predict illness.
The detection of a harmful stimulus is an evolved predisposition rather than learned. Monkeys can show a detection advantage for a harmful animal such as the snake among non-harmful animals such as koalas. Indeed, snakes are an evolutionary threat stimuli in primates because most of them are poisonous.
The answer is; D
The change of amino acid from glutamate to valine changes the properties of the hemoglobin protein. The change of amino acid changes structure of the folding of the protein. This, therefore, interferes with the function of the protein.
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Structures and processes that are derived from a common ancestor are said to be HOMOLOGOUS STRUCTURE .
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