How do you tell if physicalchange has occurred?

a. it cannot be reversed.

b. a new substance appears.

c. no new substance is produced.

Which part of cellular respiration uses 2 ATP and produces 4 ATP per glucose molecule

If earth is about 4.5 million years old which statement is true

For a healthy adult, the largest percentage of daily water is

The 9:3:3:1 phenotype ratio is expected in the f2 generation when question 3 options: the genes for the two traits assort independently the genes for the two traits are located on the x chromosome the genes for two traits are very close together on

What is the gelatinous matrix inside chloroplasts that contains ribosomes, dna, and enzymes?

The rapid depolarization phase of the action potentials of myocardial contractile cells is due primarily to which ion (s) ?

Echinoderm reproduction typically is a. sexual reproduction by budding. b. sexual reproduction with internal fertilization. c. by regeneraton. d. sexual reproduction with external fertilization.

Which is an abiotic factor of the boomslang's environment? A. the sun B. the tree C. the grass D. the people

A double-stranded molecule of DNA has 80 T nucleotides and 110 G nucleotides. What is the TOTAL number of nucleotides in this molecule of DNA?

Why is an angioplasty an incorrect treatment for an aneurysm? A) Aneurysms cannot be treated. B) An angioplasty may rupture the blood vessel wall. C) An angioplasty can have dangerous drug reactions. D) Aneurysms are treated only with pacemakers.