False only underwater animals have gills
Heart Rate. ... Some of the blood pumped by the heart travels to the lungs to get rid of carbon dioxide and pick up oxygen. The increase in heart rate stimulates your breathing rate. With an increase in heart rate, your blood pumps through your muscles at a faster rate, leaving less time for oxygen uptake.
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 two examples of organisms that differ greatly in their biotic potentials are -
1. Humans and orangutans - These have low biotic potential as they produce only one or two off springs at a time. They have long gestation periods and limited time span to produce offsprings.
2. Bacteria and Scorpio- These organisms have high biotic potential as they can produce thousands of offspring at a time. They also have a short gestation time, so throughout their life, they produce more offsprings.
