Which of the following statements best describes the function of a cell membrane? ( WILL MARK BRAINLIEST ) Please help ASAP

A. The cell membrane has many functions, but its primary action is to regulate the movement of materials into and out of the cell

B. The cell membrane has numerous functions, but its primary role is to keep organelles contained within the cell

C. The cell membrane has many functions, but its primary action is to act as a barrier to keep foreign substances from moving into the cell

D. The cell membrane's primary function is to move waste out of the cell

Populations of blue-winged warblers, a type of bird, migrate south in the winter and return to canadian breeding grounds in the spring. as global temperatures have increased due to climate change, spring has started arriving in the warbler's breeding grounds earlier in the year, before the warblers return. warblers now arrive at their breeding grounds too late to select ideal nesting sites and to feed on important early-spring food sources how are populations of blue-winged warblers most likely to be affected by the earlier arrival of spring? o a. populations will go extinct since the warblers will stop migrating to breeding grounds. b. populations will be unaffected since most species can quickly adapt to effects of climate change. c. populations will increase since warmer temperatures are generally beneficial to survival, d. populations will decline since individuals will be less likely to successfully reproduce, reset next

Coral reefs support more species per unit area than any other marine environment on earth. what is one way coral reefs are important to the health of the biosphere

Why did mendel use pea plants in his experiments? a. they have no alleles. b. they are haploid organisms. c. they reproduce quickly. d. they are all male.