Alzheimer's disease has some lifestyle factors because A. everyone can contract it in their lifetime
B. it can be influenced by nutritional choices
C. up until now there is no known cure for it
D. it can be contracted through germs

The deserts of the sahara and australia are associated with

Atypical human cell is approximately 12.00 μm in diameter and enclosed by a membrane that is 5.000 nm thick. (a) what is the volume of the cell including the membrane? (b) what is the volume of the cell membrane? (c) what percent of the total volume does its membrane occupy? to simplify the calculations, model the cell as a sphere. enter your answers using four significant figures.

92 sathe best for the question 11. most animals and plants reproduce sexually. this means that dna is passed down to new organisms from two parental organisms. which of the following is a key advantage of sexual reproduction?