Touching a jellyfish can be a very painful experience whereas touching a comb jelly is not painful. Why is there a difference? Ctenophores do not possess nematocysts. Ctenophores only use nematocycts for feeding, not for defense. Nematocysts in ctenophores lack venom. Ctenophores have very reduced nematocysts that cannot penetrate human skin.

C, h, o - elements that are common to biomolecules. if the biomolecule in question is a protein these elements also combine with nitrogen. which molecule below is a protein?

Which of the following is a common response to cell signaling?

Punnett squares are used to show possible combinations of alleles or to predict the probability of a trait occurring in offspring. an incomplete dominance cross is performed between a bird that is homozygous for red feathers and a bird that is homozygous for blue feathers. purple offspring result. then, two of the purple offspring are crossed. according to the punnett square for this cross, how many of the offspring from the second cross will have a feather color that results from incomplete dominance? 1 in 4 2 in 4 3 in 4 4 in 4