The body cavity of the starfish is called the... A.)madreporite.
B.)coelom.
C.)central disc.
D.)ray.

All individuals have two alleles for a given trait. according to mendel's these alleles are passed down one each from both mother and father.

What maintain homeostasis when a persons internal body temperature is 97.5°f

19. a cell is viewed under a microscope and is found to have two nuclear envelopes and spindles that appear to be breaking apart. which phase of mitosis is the cell most likely in? a. metaphase b. prophase c. telophase d. anaphase