What is the soil-like layer on the moon’s surface called?
a. maria
b. regolith
c. basalt
d. magma

Advances in technology have enabled scientists and researchers to better study the evolutionary relationships between species

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

What do nitrifying bacteria convert