Which of the following do all acoelomates have in common?

A. symmetry

B. cephalization

C. they are astomes

D. muscle and nerve tissue

E. extensively branched digestive cavity

When two different species live in the same area and use the same limited resources?

Which of the 4 groups of organic compounds do enzymes belong in?

The lunge exercise focuses on which muscle region of the body? quadriceps hamstrings calves abdominal

What is a strong reaction to a harmless antigen?

In the chart, the recessive trait is a) no teeth b) sex-linked c) small teeth. D) large teeth

The movement of air particles around a vibrating object is a

About how much of the United States is covered by forests? A 90% B 10% C 50% D 30%

What is the layer underground where all empty spacess are filled with water

What type of epithelial tissue is specialized to stretch repeatedly without damage?

A research team needs an antibody that binds to a protein of interest so that protein expression can be monitored. They use epitope tagging, adding an epitope (a sequence of amino acids) to the protein through DNA recombination.