Which of these statements is NOT correct about flatworms? 

Order these major taxonomic categories into an increasingly inclusive (less specific) hierarchy.

Which of the following is NOT an example of a prezygotic isolating mechanism?

Hypothesis that eukaryotic cells acquired mitochondria and chloroplasts by engulfing a free-living bacterium that developed a symbiotic relationship with a host cell.

“Jerry! You have made a terrible mess! Now you get a spanking, and if you ever do it again, you’ll get a harder spanking.” This is an example of which technique?

These have a mutualistic relationship between soil fungi and the roots of most plants. They help plants absorb water and nutrients.

Children who can perceive the thinking of others are more socially competent.

Which of the following protists is incorrectly paired with the disease that it causes?

Symbolic play supports children’s development from purely concrete activity to connecting the concrete with the abstract.

________ is said to occur when a similar trait evolves in two unrelated species.