For diffusion to occur, which condition must be met?

A concentration gradient must exist.

A hypotonic external environment must exist.

A hypertonic external environment must exist.

Dynamic equilibrium must exist.

Archaea are different from bacteria in the archaea, A) have structures and molecules that are more similar to eukaryotes than bacteria.

What role do genetic factors play in causing birth defects?

The ribosome of the bacterium E. coli includes the ribosomal protein L4 (rpl4). The rpl4 gene carries the instructions for making rpl4 protein. Which of the following arguments provides support for the claim that E.

If glaciers carry a mixture of different clast sizes, why are glacial outwash deposits layered?

He respiratory system allows for gas exchange to happen in the lungs. How does the respiratory system affect the cardiovascular system?

What is responsible for converting glucose into a form of energy usable by cells?

What best describes the alternation of generations? 1. meiosis produces a diploid zygote 2. a gametophyte is a diploid phase 3. a gametophyte is a haploid phase

Along with plants and algae, in which organisms can photosynthesis occur?

In asexual reproduction, the offspring are similar, but not identical, to the parents. True False

All of the following are pyrimidine nucleic acids except: A. Thymine B. Guanine C. Cytosine D. Uracil