Answer:
Mutations are essential for evolution to occur because they increase genetic variation and the potential for individuals to differ. The majority of mutations are neutral in their effects on the organisms in which they occur. Beneficial mutations may become more common through natural selection.
Answer:
Emotion is an organism's response to a stimulus that includes a mixture of physiological arousal, expressive behaviors, and conscious experience.
Explanation:
What is an Emotion?
Emotion is a neural drive that moves a living organism to action, provoking automatic reactive behavior that has been adapted through evolution as an survival mechanism to meet a survival need. In simple words we can say that Emotion is a mental state related with the central nervous system, several chemical messengers released in neural signal transmissions are responsible for different emotions like happiness, sadness, difference in thoughts etc
Answer:
Negative; Estrogens and progesterone
Contraceptive pills mimic the negative feedback effect of estrogens and progesterone.
Explanation:
- <em><u>Estrogens and progesterone are regulated by negative feedback mechanisms, and therefore, birth control pills make use of this fact.</u></em>
- <em><u>Birth controls pills adds extra amount of estrogen and progesterone which inhibits the release of these hormones by the body.</u></em>
- Consequently the release of an egg from the ovary is inhibited and the lining of the uterus is made to become thin and unsuitable for pregnancy by the absence of progesterone hence decrease the secretion of the luteinizing hormone and the follicle stimulating hormone by negative feedback.This process ends up inhibiting ovulation.
<span>Ideally, sustainable development should preserve the environment and ecosystems while being continually implemented. For example, solar energy is sutainable because you can't spend it by using it. Oil is unsustainable becasue it will run out and you can't replenish it in time. Wind energy is also sustainable.</span>
I think that the answer is behavioral isolation because this isolation helps members of the same species identify each other as mates and that's what the emperor penguins do.They call their mate with a specific sound.I'm not 100% sure tho