Early amino acids may have originated

a Deep in the crust

b At hydrothermal vents

C Elsewhere in the solar

system

d All of these

Which is the best description of photophosphorylation? the absorption of light energy by chlorophyll the conversion of light energy to chemical energy the removal of a phosphate group from a molecule the conversion of ADP to ATP using light energy

The Hawaiian Islands are caused by a. A divergent plate b. A hotspot c. A convergent plate d. A transform plate

What are two organ systems that are involved in the excretion of wastes from the body?

Classify List the types of technology and give at least two examples of each type.

Which charaterrisitics are always present in all living organisms

What is the source Code of transcription

One of the primary functions of DNA in cells is to A. Serve as a storage firm for unused nucleotides B. Occupy space in the nucleus to keep the nucleus from collapsing C. Copy itself exactly for new cells

What feature do lymphatic vessels share with veins that allows lymph to flow in only one direction?

The negative stain is used to the negative stain is used to determine cell size. visualize endospores. determine flagella arrangement. visualize the outer membrane. determine gram reaction.

The visible part of the ear has the ability to stretch significantly, and then recoil back to its original position. Which protein fiber must be present?