Why are enzymes necessary? a) to deter the rate of decomposition b)to act as a catalyst in chemical reactions c)to conserve the stored energy of a cell

Which one is an advantage of external fertilization a. the offspring are genetically identical to the parents b. more eggs can be fertilzed at one time c. more sperm can be released at one time d. more protection is available for developing plz

Which of the following are responsible for sending messages from the hypothalamus to the thalamus?

Three applications for admission to a local university are checked, and it is determined whether each applicant is male or female. the number of sample points in this experiment is