Scavengers are heterotrophs
Indicate whether the statement is true or false
TRUE
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Gene families are composed of homologous genes that have different evolutionary origins but the same function
Indicate whether the statement is true or false.
Up until 20-30 years ago, people with cystic fibrosis (CF) wouldn't live long enough to reproduce
CF is a homozygous recessive condition, leading researchers to think that over time the incidence of CF would decrease because the allele would be removed from the gene pool. The results actually indicate that the rate of CF is on the rise. Which of the following would explain those results? A. We are being subjected to more mutations as a population due to more pollution. B. The population is increasing, and more people mean more mutations. C. The heterozygous condition is being selected for, much like what we see with sickle cell trait. D. People are traveling more, so when members from different areas reproduce, more mutations will result.
Which is a hormone that reduces blood volume and pressure by pulling more water out of the blood and increases urine volume?
A) renin B) erythropoietin C) atrial natriuretic hormone D) aldosterone
Bacteria in the genus Cytophaga are capable of digesting a wide range of complex carbohydrates and are important for degrading raw sewage.
Answer the following statement true (T) or false (F)