Easy. Answer is oxygen because it says which one was missing before any life was on earth. And in order to have life on earth you need oxygen!
:)
Options for the question have not been given. They are as follows:
A. a lack of urban health care capacity
B. cultural disregard for women and women's health
C. prudence's family medical history
D. a lack of previous medical problems
Answer:
C. prudence's family medical history
Explanation:
Sociological factors include the factors related to human society. These factors stem from the way a society functions and effects the people which are a part of it. The way the society is structured and developed, impacts the people.
Prudence died during childbirth. There can be many sociological causes of her death like low status of women or poor medical facilities in her society. However, her family medical history will not be considered a sociological factor. Family medical history also depends on other factors like genetic composition of the family which is not a sociological factor.
Answer:
The cell membrane is decribe by sandwich model and by fluid mosaic model.
Explanation:fluid mosaic model is used to describe the kinds of protein which are present in cell or plasma membrane ...according to this the cell membrane contain intransic,extrinsic,and conjugate molecule like glycoprotien,glycolipid etc.
Answer:
B. Complex multi-cellular organisms will suffer more, because vital differentiated cells that the rest of the organism requires will be lost.
Explanation:
If the predator takes bite of an organism, complex multi-cellular organisms will be likely to suffer more. Multi-cellular organisms have specialized cells that perform specific functions like skin cells, muscle cells, etc. If any part of such organism is lost, the whole body’s mechanism would be harmed.
