Organisms that cannot produce their own food and rely on other organisms for nourishment are called this
A. autotrophs
B. heterotrophs

Explain why in any given geographical region, women tend to have lighter skins( by 3-4% on average) than men?

What is a codon and where is it found

6. in domesticated cats, the following are independently assorting: normal ears (t) is dominant to tufted ears (t); curved whiskers (c) is dominant to straight whiskers (c); the presence of six toes (s) is dominant to five toes (s); gene for hair length is an x-linked codominant. the three phenotypes for hair length are long (xhxh), medium (xhxh), and short (xhxh); medium is the heterozygous condition. given two parents: ttccssxhxh x ttccssxhy how many different gametes could be formed in the female cat with respect to these four traits? how many phenotypes are possible in the offspring from this mating?