Looking at figure 7.8 what is d? which of the following shows active transport, passive transport, and facilitated diffusion?

D: lipid bi-layer

A: passive transport .. because it occurs along the concentration gradient  without energy consumption

B: facilitated diffusion because it is along concentrated gradient but with the help of carrier protein but without energy consumption ..

C: is active transport because it is against concentration gradient with energy consumption

the corpus luteum secretes estrogens and progesterone. the latter hormone causes changes in the uterus that make it more suitable for implantation of the fertilized ovum and the nourishment of the embryo. if the egg is not fertilized, the corpus luteum becomes inactive after 10–14 days, and menstruation occurs.

i hope this : )

in the year 2850, humans successfully colonized mars. the martian modules that were constructed could hold only a small population of people. it is now a century later, and the population on mars has grown to 600 people. of the current mars population, 45 people express the recessive phenotype for phenylketon- uria (pku) syndrome (pp genotype).

explanation: