Answer: I believe that the answer is D.
Explanation:
Hormones -- such as melatonin and cortisol; the former signals the body to go to bed, while the latter signals for the sleeping person to wake up -- are created by physiological changes.
Answer:
Selection that acts, over evolutionary time, to enhance traits that increase an individual's ability to mate frequently or with quality partners is known as <u>sexual selection.</u>
Explanation:
Sexual selection : The process through which males and females attempt to maximise their chances of reproductive success is called sexual selection. It is a form of natural selection. Charles Darwin suggested sexual selection. Animals compete with others of the same species for the chance to mate.
<u>For example:</u> Male widow-bird grows exceptional long tail feathers, females lack tail feathers.
A wildlife sanctuary is a place that is strictly controlled in order to protect a species from extinction.
Answer:
Hello There!!
Explanation:
It is a specialised cellular part for example nucleus and mitochondria.
hope this helps,have a great day!!
~Pinky~
