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.
Answer:
The correct option is D. The nerve and red blood cells will turn on and off different portions of their DNA, using different genes to make different proteins.
Explanation:
A zygote is totipotent which means it has the ability to differentiate into any cell type found in the body along with the placental cells.
The nerve and red blood cells are specialized cells and they cannot differentiate into any other cell type.
All cells in the body are formed from the zygote. All the cells in the body have the same chromosomes and the same genes. However, these cells become specialized because certain part of the DNA is activated in one type of cell which helps it perform its function. Different genes are activated in different specialized cells which are able to transcribe and translate.
The answer to question 3 is choice B. Cells
The answer to question number 5 is choice A. New cells are made in all of them
The answer to question number 6 is choice A. Cells make the basic structure of an organism, and they perform basic life functions for the organism
The answer to question number 7 is choice B. maintenance of homeostasis
The answer to question number 9 is choice B. Viruses must invade a host cell to reproduce while bacteria can reproduce on their own
The answer to question number 11 is choice D. Eubacteria, Archaea, Protist, Fungus, Plant, and Animal
The answer to question 14 is choice D. 100%
The answer to question 15 is choice B. 100% white _ might have to re-check this one
The answer to question 17 is choice B. Ff and Ff
The answer to question 18 is choice A. They will all be tall
The answer to question 19 is choice B. Mutualistic
The answer to question number 20 is choice D. planting flowers
The answer to question number 22 is choice B. the population of the rabbits in the ecosystem will increase
The answer to question number 23 is choice D. competition for resources
Answer:
Only Water, Oxygen, Nitrogen and ammonia
Explanation:
