Flatworms are

A. Parasitic

B. Free Living

C. both A and B

D. none of the above

Lighting a match and baking a cake are two actions that involve chemical changes. Why are these actions considered chemical changes? Select one: a. They change the state of matter. b. They create new substances. c. They change volume. d.

Why is mercury contamination in the ocean a concern?

Which statement accurately describes the probability of genotype combinations in this Punnett square? The probability of having a Yy offspring is 25%. The probability of having a Yy offspring is 50%. The probability of having a Yy offspring is 75%.

As you learned, thalidomide is a teratogen meaning that causes birth defects when taken by pregnancy women.

Describe Macromolecules

Within which structure does the placenta normally develop

A 29-year-old female presents with fever, cloudy urine, flank pain, and hematuria. these signs and symptoms support which diagnosis

What is the term for a male reproductive cell?

What happens if people keep killing sharks and who wants to stop it and how may do we kill a year

In which conditions did the water move through the cell membrane when the cell was surrounded?