Answer:
1. pituitary glands 2. placenta 3. much larger 4. the lining of the uterus is shed, which is called a period
Humans have reduced environmental stability drastically due to our contributions to climate change through carbon dioxide and other greenhouse gas emissions. we have changed the weather patterns, increased global temperatures and caused air and plastic pollution as well as many others. the environment has changed and put animals and plants at risk of extinction because of heating of the earth, loss of habitat, etc
b.
The definition of evolution is the process by which different kinds of living organisms are thought to have developed and diversified from earlier forms during the history of the earth.
These are just quickly written down, but I hope these can serve as sufficient answers.
Plant Behaviours:
1. - Some plants know when the sun will rise. Sunflowers are a good example of exhibiting this behavior called "Circadian Rhythm."
2. - Plants that have vines search for a surface, preferably a pole but walls are acceptable, to climb and grow on, which is called "Twining."
3. - Some plants 'curl up' whenever they are touched.
4. - Corn seeds can distinguish between 'up' and 'down,' which is called "Gravitropism."
5. - A plant can distinguish their own roots from another plant's.
Animal Behaviours:
1. - Animals can communicate, actually, they can communicate quite well! Dolphins and bees are infamous for this, as they communicate through a series of actions and the point comes across clear to others in their species.
2. - Body language is a behavior most commonly associated with animals, even though we do it too.
3. - Territorial/'Defensive' behaviors are common, such as marking and hostility when another animal trespasses into their domain.
4. - Certain behaviors are exhibited to attract/court mates, such as birds singing songs or chemicals being thrown off to lure in a partner.
5. - Cooperation is also a very common behavior, as seen in ants.
6. - Annual cycles, such as migration and hibernation.
7. - Animals also have a circadian rhythm like plants, which aids in whether or not an animal exhibits the behavior of being nocturnal.
The answer would be protein it is easy to gain muscle that way.