The derived characteristic of protostome development is found in which of the following phyla?
a. sponges
b. roundworms
c. cnidarians
d. echinoderms

Which situation would most likely result in evolution? question 2 options: an alligator has no alleles for scales. a large population loses a few individuals. a single individual joins a large population. a predator prefers one phenotype to another.

Ausable water source is one that can be used by humans for drinking or agriculture. identify the water reservoirs as usable or unusable based on their current state. oceans rivers glaciers freshwater lakes groundwater

Which ideas did your answer contain? check all that apply. no food for organisms no oxygen in the atmosphere no trees or flowering plants no products based on trees or plants (building materials, medicines, fuels, fibers) no fossil fuels