Hi !
Answer:
speeds up the heart beating : <em>adrenaline</em>
narrows arteries to increase blood pressure : <em>cortisol</em>
<em>only found in females : </em>estrogen
Answer: Qualitative Research is a research which is carried out on any topic to get complete information/data on such topic. The research can be scientific research, market research etc. The question ” why are they doing that” when asked, needs thorough investigation and discussion about a topic.
Explanation: Hopefully this helps you. (pls don't report if the answer is wrong)
I think b but i could be wrong
Water, carbon dioxide, and oxygen are among the few simple molecules that can cross the cell membrane by diffusion (or a type of diffusion known as osmosis ). Diffusion is one principle method of movement of substances within cells, as well as the method for essential small molecules to cross the cell membrane.
