What is the best description of the evolution of camouflage by natural selection? *
A. Insects see the background they want to blend into, and then actively change their
genotype to match the background.
B. Insects rub against the leaves, bark, or dirt that they live on, so that the pigments from
these substances are transferred to their bodies.
Their offspring inherit this coloration
and blend in more effectively.
C. Mutations occur frequently, so that each offspring insect is a completely different
color. Based on their coloration, the insects seek a habitat they can blend into.
D. Mutations affecting coloration occur randomly in insects. Insects with mutations that
help them to blend in are more likely to survive and reproduce than others. Gradually
these helpful mutations accumulate in the population.
PLEASE HELP

Which of the following systems in absorbing oxygen and releases carbon dioxide

Approximately 90% of all cases of polycystic kidney disease are inherited in an autosomal dominant fashion. the disease is typically related to mutations to genes (pkd1 and pkd2). pkd genes can be found on chromosome 16. the disease occurs in approximately 1: 800 to 1: 1000 people. here is a hypothetical example. the dominant allele d will cause the development of pkd. the recessive allele is known as d. what genotypes would correspond to suffering from pkd? dd, dd what genotypes would correspond to being normal (not suffering from pkd)? dd consider that 1: 1,000 people have pkd in your population of 325million. consider that pkd is inherited in an autosomal dominant fashion. show you math for all of the following questions: what is the genotypic frequency for dd? what is the genotypic frequency for dd? what is the genotypic frequency for dd? what is p? what is q? how many people in your population would have pkd?

The combining form leuk/o means red true or false