Microfilaments (actin) are important for

A.

cell movement

B.

maintaining cell shape

C.

muscle contraction

D.

A and B only

E.

A, B and C

All of the following structures are unique to plant cells except a. cell walls. b. chloroplasts. c. large vacuoles. d. mitochondria. What is the function of the cholesterol molecules in a cell membrane? a. They make it thicker. b.

In purebred Labrador retrievers, the dominant fur-color allele, B, results in black fur, and the recessive allele, b, results in yellow fur. Suppose the Happy Labrador Ranch breeds yellow and black Labrador retrievers.

Why is cell divison important for both unicellular and multicellular organisms

The products of restriction digestion can be visualized by gel electrophoresis. True or False

What is 14.72 in percentage?

In which species of animal does sebum eventually become lanolin?

What are some examples and non examples of chemical bonding?

Match the staining techniques with their purpose. A Negative stain such as India ink or Congo red. B The Gram stain C The Ziehl-Neelsen Acid-fast stain D Simple stain with a basic dye E The Schaeffer-Fulton Endospore stain Stain microbes a bright

Sandy puts a paper clip on the table and puts a magnet near the paper clip. The paper clip begins to move. What type of forces are acting on the paper clip?

Which statement is an example of absolute age? 1) Dinosaurs lived a long time ago 2) Trilobites lives before dinosaurs 3) Teachers are old 4) Dinosaurs went extinct 65.5 million years ago