8. All the abiotic and biotic factors that interact with each other is called a. A habitat
b. An ecosystem
C. A Niche
d. Commensalism

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 : )

producers: apple trees, potatoes, carrots, grains, acorns, cabbage, grass, corn, lettuce

consumers: deer, mice, rabbits, chickens, squirrels, horses, worms, cows

predators: eagles, frogs, wolves, owls

c: warm water flows from the western tropical pacific toward south america. that should be the right answer! hope it .

garbage disposal because lysosomes dispose of old cell parts like garbage disposals dispose of old food.