What explains why populations fluctuate around the carrying capacity?

a) immigration exceeds emigration, creating an increase in population size.
b) birth rates equal death rates as limiting factors affect population sizes.
c) density independent factors play a greater role than density dependent factors. d) mutualistic relationships exceed parasitic relationships, increasing population sizes.

Which best describes the scientific method? a. a path of clearly defined steps that must be followed in a particular order b. a possible answer to a scientific question based on knowledge or research c. the recipe for how to conduct an experiment that must be followed precisely d. the process of hypothesis and testing through which scientific inquiry occurs

Isotopes of the same element have differ in their

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.