1. Which factor has great importance in determining the characteristics of an aquatic ecosystem

1. Day Length

2. water length

3. angle on sunlight

4. average precipitation

Which of the following traits would be least useful in a phylogenetic analysis? A) A trait that is altered easily by small changes in temperature B) A trait that involves genetically inherited behaviors C.

Where does the krebs cycle occur?

3. which animal is the carnivore or secondary consumer A. Rabbit B. Fox C. Both D. Neither

The process of cytokinesis involves components of the cytoskeleton. It is most similar to what other cytoskeletal function? A. vesicle transport on microtubulesB. muscle contractionC. dynamic growth and depolymerization of tubulinD.

Explain how meiosis ultimately the reason why humans have the characteristics that they do? In your explanation be sure to include how mitosis, doesn't provide the human characteristics.

Which feature is common to prokaryotic and eukaryotic cells? organelles cell nuclei complex structures cell membranes

State one possible negative impact of importing a natural predator to control a pest.

What does dr. carroll mean when he says, "while mutation is random, natural selection is not"?

A group of scientists sequence and identify various regions of an organism's genome and find that 92% of the genome (a circular chromosome and a plasmid) is comprised of protein-coding genes. The organism is most likely a?

Which of the following statements is correct? Nonrenewable resources generally have a higher impact on the environmental than renewable resources. Nonrenewable energy sources are always a better choice than renewable energy sources.