Which shows the number of legs in each group of arthropods from least to greatest?

arachnids, insects, millipedes, crustaceans
crustaceans, millipedes, insects, arachnids
millipedes, crustaceans, arachnids, insects
insects, arachnids, crustaceans, millipedes

Which of these statements are true about scientific theories and hypothesis

Acertain species of fish can have either long or short fins. the allele for long fins is dominant over the allele for short fins. a heterozygous, long-finned fish is crossed with a homozygous, short-finned fish. of the offspring, will have long fins and be , and will have short fins and be .

Which of the following statements is true about the relationship between genetic variation and natural selection? a. genetic variation must be present in a population before natural selection can act on it. b. genetic variation arises in a population as a result of natural selection. c. natural selection can act on a population whether there is genetic variation within the population or not. d. after natural selection acts on a population, the amount of genetic variation in the population always increases.