Sponges have specialized cells and an endoskeleton, but they lack tissues and body symmetry. ... They include jellyfish and corals, both of which have radial symmetry. All cnidarians have nematocysts, and many are bioluminescent. They may exist in medusa and/or polyp form.
Which phrase best describes scientific theories?
a.explain few observations
b.serve as speculations
c.are never proven
d. cannot be replaced
Biology
A. both parent would be Ww
b. see picture (for the top left it would be Ww not wW)
c. 2 Ww, 1 WW, 3 ww (i think i’m not sure how to do ratio)
d. 75%?
e. 25%
Genes and the environment can affect an organisms traits