The salt in seawater comes from (select all that apply) :
A. Underwater volcanoes
B. Hydrothermal vents on the seabed
C. marine animals
D. The breaking down of rocks.

Which is an example of a decomposer? a. bear b. algae c. grass d. bacteria d bacteria

The chromosomal structure that limits the number of cell divisions of a cell is the the chromosomal structure that limits the number of cell divisions of a cell is the kinetochore telomere histones centromere

Select the correct answer. which mutation is harmful to the organism? a. a mutation allowing moths to camouflage better on blackened tree bark b. a mutation making staphylococcus aureus resistant to the antibiotic methicillin c. a mutation inhibiting human immunodeficiency virus from attaching to and entering the cell d. a mutation causing uncontrolled cell division e. a mutation giving plant leaves a bitter taste to discourage herbivores from eating them