In the carbon cycle, coal serves as an atmospheric reservoir of carbon.

When the cork cambium divides, it produces cork cells toward the inside.

Both the sender and receiver of a signal benefit from the transfer of information. This is an example of

A) cueing.
B) eavesdropping.
C) honest signaling.
D) deceitful signaling.

Auditory ossicles

A) Organ of hearing
B) Passageway from the outside to the eardrum
C) Interconnecting tunnels in the temporal bone
D) Tiny bones in the middle ear
E) Connecting chambers of inner ear filled with endolymph

The earliest period of prenatal development is the ________ period.

A) embryonic
B) neonatal
C) germinal
D) infant
E) fetal