An compound is made up of carbon and other elements.
a. organic***
b. original
c. inorganic
d. internal living systems are made of complex molecules including carbohydrates, fats, proteins, and nucleic acids. even though there are more than 100 elements known to exist, these molecules are comprised of only a few elements. what are these elements?
a. sodium, potassium, calcium, nitrogen, phosphorus, sulfur
b. carbon, hydrogen, oxygen, nitrogen, sulfur and phosphorus
c. carbon, hydrogen, oxygen, fluorine, chlorine, iodine
d. fluorine, chlorine, iodine, nitrogen, phosphorus, sulfur

Ry was studying two populations of the same species of lizards. one population lived on an island and the other lived on the mainland. both populations were affected by a hurricane that hit the island and the mainland with equal force. a year later, henry was testing the gene frequency and saw a decrease in genetic variation in the island species, but not in the mainland species. which best describes a conclusion he might have reached? gene flow greatly affects small populations, but large populations can recover. genetic drift greatly affects small populations, but large populations can recover. gene flow greatly affects large populations, but small populations can recover. genetic drift greatly affects large populations, but small populations can recover.

Ascientist separates a population of mice into two groups. what would most likely increase the rate of speciation in this population. a. teach the two groups different tricks b. allow the two groups to breed with each other c. put the two groups in different environment d. have the two groups live in identical ecosystems

Fungi are classified into how many groups? a. 1 group b. 2 groups c. 3 groups d. 4 groups