Natural selection acts on a population to produce individual organisms with different adaptations. Which is true about these adaptations? A)These adaptations are designed so every organism will be perfectly adapted to its environment B)The usefulness of these adaptations is tested by interactions in the surrounding environment. C)These adaptations are useful to every organism and their descendants in the any environment D)The usefulness of these adaptations is reduced by interactions in the surrounding environment

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?

Which set of characteristics best describes sedimentary rock? a) largest type of rock, made of organic matter, hardest type of rock b) often contains layers, forms near sources of water, contains fossils c) least abundant type of rock, made of other rocks, made mostly of minerals d) most abundant type in earth's crust, made of magma/lava, contains no fossils

What if the yeast were extremely active and produced more than 100ml gas. would you know? why/why not