Which organism in a food web returns matter to the environment? a) decomposer b) producer c) carnivore d) primary consumer

If a cell normally has 12 chromosomes how many chromosomes will be present if ach cell at the end of meiosis 2 if a single pair of homologous chromosomes fail to separate at anaphase 1

Which term do biologists use to describe the average number of individuals of a species per unit area? _carrying capacity _population density _minimal viable population _survivability curve

Which of the following in a nonrenewable resource? A) hydropower B) biomass C) geothermal power D) coal

The surface area/volume ratio is an important factor for one celled organisms. As a cell's volume grows, its surface area/volume ratio decreases, making it harder and harder to acquire enough nutrients via diffusion.

A sports drink company develops a new product that is advertised to decrease soreness after rigorous execise. Which of the following evidence of this claim would the scientific community accept as the most reliable?

From what is a nebula made? stars planets asteroids dust and gas

Which phrase if placed in box X would correctly complete the flowchart shown below?

Question 14 of 20 A mutation in human ATPase 6, which corresponds to E. coli subunit a, from leucine to arginine at position 156 may allow the movement of protons across the membrane, but not the rotation of the ring of c subunits.

Once DNA is cloned, we have the problem of finding the piece of DNA that holds our gene of interest. Explain how nucleic acid hybridization will accomplish this task.

Bile salts are synthesized from cholesterol and are used for the emulsification of dietary lipids. What is the primary fate of bile salts during digestion?