What type of succession takes place when there is no existing biotic community or soil to begin with?

a. primary succession

b. secondary succesion

c. tertiary succession

d. none of these

Which of the following has not resulted in the decline of cheetah populations? a. population bottleneck b. overhunting c. habitat destruction d. large genetic diversity

3. Some plants grow better if bone meal (ground-up bones) is spread around their roots. What does bone meal supply to plants that makes them grow better? a. Energy b. Minerals e. Vitamins d. Carbon dioxide e. water

Behaviors that are determined by genes and that give an organism increased reproductive success usually become common in a species due to A. asexual reproduction. B. random chance. C. natural selection. D. autosomal mutation.

You are looking at chromosome 1 in a human being. Assuming there is no crossing over, what is the source of all the genes on this chromosome?

Which food items can be broken down mostly into amino acids A. spaghetti noodles B. hamburger patties C. apple slices D. cucumber slices

What is the similarities between fault and fracture?

Role of oxygen in active transport

During gestation embryos normally develop in

How many alleles does a gamete carry for each trait? A. one B. two C. millions

Burying beetles of both sexes show high investment into parental care of their offspring. Based on this fact, what is probably true about burying beetles as compared to species with little parental care?