A plant has the genotype AaBb for two characteristics. The genes that control each characteristic are on different chromosomes. The plant produces sperm by a process that begins with meiotic cell division. Which
genotypes will the plant's sperm have?
1.Aa and Bb
2.AB and ab
3.AB, ab, aB and Ab
4.AA, Aa, BB, Bb, AB, Ab, aB and ab

Dr. bad has developed a way to damage the atp-binding cassette transporter (abc transporter) on a cell. the cell's abc transporter can no longer bind and use atp when it's transporting substances. which of the following statements best describes how this damage would effect the transport of substances in the affected cell? (choice a) substances at a low concentration outside the cell would be more rapidly transported into the cell, where there is a high concentration. (choice b) substances at a high concentration outside the cell would not be transported into the cell, where there is a low concentration. (choice c) equilibrium would be established between all substances inside and outside of the cell. (choice d) substances at a low concentration outside the cell would not be transported into the cell, where there is a high concentration.

Which of the following is not a characteristic of natural selection? 100 points pls more offspring are born than will survive to reproduce. mutations appear randomly breeding pairs are chosen by humans organisms that are better adapted are more likely to survive

Sweating and breathing is an example of differentiation specialization maintaining homeostasis metabolism