Why are protozoa significant? select all that apply.
protozoa contaminate the water supply.
protozoa do not contribute to a food chain.
some protozoa clean polluted water.
some protozoa are parasitic and cause diseases like malaria.
protozoa have an important role in the food chain.

Ture or false evidence for evolution includes millions of fossils

Use the above pedigree for questions 1,2, and 3 1. what kind of genetic disorder is represented in the pedigree? a. recessive b. dominate refer to the pedigree in question 1. 2. is the mutated gene in this disorder located on a sex chromosome (x or y) or an autosome? a. sex chromosome b. autosome refer to the pedigree in question 1. 3. which generation has individuals that you are certain are heterozygous for the mutated gene? a. generation 1 b. generation 2 c. generation 3

What happens when two nitrogen atoms share electrons