Which statement is true for single-celled organisms?

A.

They are often harmless.

B.

They always cause disease.

C.

They only live inside humans.

D.

They reproduce in a complicated process.

Why did Mendel use cross-pollination in his experiments? A) to speed up self-pollination b) to control which plants pollinated other plants c) to make sure dominant factors were always produced

A cross of a white hen with a black rooster produces erminette-color offspring. Which contains both black and white colors. This type of inheritance is known as

Why does the body switch between cellular and anaerobic respiration?

Which is not found in a nucleotide

A researcher is looking through a microscope at a petri dish full of mouse embryos. these embryos appear as balls with no indentations along their surfaces. these embryos are most likely:

What would happen to the enzymes activity if denaturation occured

Blood clots form using which of the following components? Check all that apply. fibrin platelets blood clotting factors blood cells

Marys mother bought some beautiful blue flowering plants. she took very good care of the plants. she watered them, fertilized them regularly, and added lime to the soil to raise the pH from acidic to basic.

Which is an example of a behavioral adaptation? Birds migrating in the winter a ducks's webbed feet a polar bears thick fur a gazelle's ability to run fast

Which of the following is a synapomorphy linking dinosaurs and birds? a. Loss of teeth b. Furcula c. Small size d. Endothermy