When a system of classification is based on observation of a predetermined set of factors, it is called

In what phases is the genetic material in the cell correctly referred to as chromatids? a. interphase and prophase b. metaphase and telophase c. anaphase and metaphase d. metaphase and prophase E. interphase and telophase

During the process of photosynthesis, energy from the sun is converted into

If a food does not contain the necessary amounts of a certain amino acid to meet a body need, that amino acids is referred to as a (n)

3. Looking at some pond water under the microscope, you notice an unfamiliar rod-shaped cell about 200 mm long. Knowing that some exceptional bacteria can be asbig as this or even bigger, you wonder whether your cell is a bacterium or aeukaryote.

Explain a scenario in which secondary succession would occur.

What does "leeward" mean?

Which lipid acts as a chemical messenger? a. adipose tissue b. cholesterol c. testosterone d. beeswax

The degradation of alanine yields pyruvate and the degradation of leucine yields acetyl coa. can the degradation of each of these amino acids directly replenish the pool of tca intermediates? explain why or why not.

How does the Arthropod growth curve differ from the growth curve of most other animals?

Which of the following microscopes has the lowest resolution TEM SEM dissecting electron