Which of the following statements about resource use is true? a. the use of renewable resources has no inherent costs. b. resource use, whether renewable or nonrenewable, must be carefully managed to reduce the impact on the environment. c. nonrenewable resources are used for energy, because there are no renewable resources that can be used as a source of energy. d. the overuse of nonrenewable resources is less environmentally damaging than the overuse of renewable resources.

Label the steps for protein synthesis in order, beginning with the first steponce the protein is made, the gene for a particular trait is expressedmrna joins the ribosome, and the anticodons from trna join mrna to form a chain ofamino acidsrna polymerase unzips dna and free rna nucleotides join dna to form mrnav a chain of amino acids is formed from peptide bonds, creating a proteinmrna is transported from the nucleus of the cell to the ribosomes of the cell.

The upper forelimbs of humans and bats have fairly similar skeletal structures, whereas the correspondingbones in whales have very different shapes and proportions. however, genetic data suggest that all three kindsof organisms diverged from a common ancestor at about the same time. which of the following is the mostlikely explanation for these data? a) humans and bats evolved by natural selection, and whales evolved by lamarckian mechanisms.b) forelimb evolution was adaptive in people and bats, but not in whales.c) natural selection in an aquatic environment resulted in significant changes to whale forelimb anatomy.d) genes mutate faster in whales than in humans or bats.e) whales are not properly classified as mammals.

Why is water called the universal solvent?   a. water is a polar substance that dissolves nonpolar substances.  b. water can act as a solvent in many different solutions.  c. water is a nonpolar substance that dissolves polar substances.  d. water can act as a solute in many different solutions.this is the correct answer water can act as a solvent in many different solutions.