21. Which phylum consists diploblastic animals? a. Porifera b. Coelenterata c. both a and b d. Annelida 22. ​

Which of the following is required of a new drug?me

Aspecies has evolved an asexual mode of reproduction by having offspring develop from unfertilized eggs. which of the following will be true of this species' response to natural selection? there will be more deaths from natural selection because there is no mutation. there will be less genetic variation from recombination and a risk of not adapting quickly to environmental change. the species will increase in numbers because genetic variation is increased. the species will compensate for loss of genetic variation by hybridizing with other species. there will be fewer deaths from natural selection because sexual recombination always leads to extinction.

Every time there is a full moon, mrs. cook insists that students in her classes display strange behavior. what would be the best way for her to prove the validity of her theory? a. keep a journal of student behavior during different phases of the moon cycle b. research data to find concrete evidence of a link between the moon cycle and human behavior c. ask students to keep a journal of how they are feeling during different phases of the moon cycle d. survey other teachers in the building to see if they notice similar behaviors during the full moon