How do root cell membranes allow osmosis. A. a reflex triggers the need for water in the plant.
B. They keep water out of the plant
C. They are impermeable
D. They are semi permeable

Apopulation has 1000 individuals. over a period of 1 year, 500 newindividuals are born. which equation shows how to calculate the birthrate ofthis population? a. 500 - 1000 = 0.5b. 1000 x 0.5 = 500c. 1000 - 500 = 2d. 1000 + 500 = 1500

In the african savanna, more wildebeests are born than the environment can support. which is most likely to happen over a period of years as a result

25. what does meiosis create? haploids or diploid? somatic cells or gametes?