What type of sex chromosome will be contained by the sex cells of a female giraffe? a. x chromosome only b. y chromosome only c. x and y chromosomes d. egg cells do not contain sex chromosomes

This is an active transport mechanism by which cells pump sodium and potassium ions against the concentration gradient

Which statement is not an accurate description of meiosis? a) meiosis produces offspring that are genetically diverse. b) meiosis produces offspring that are identical to the parent. c) in sexual reproduction half of the genetic material comes from the father (sperm) and half of the genetic material comes from the mother (egg). d) meiosis decreases the number of chromosomes by half so that when a sperm fertilizes an egg, the resulting zygote has the correct number of chromosomes.

Which areas of earth receive the most precipitation on average? a. tropics b. temperate zones c. regions near 30? n and s latitudes d. polar zones 1