When sound waves enter the outer wall of the ear, what is the first thing they strike? Group of answer choices A. the ear drum B. the cilia C. the three tiny bones of the middle ear D. the cochlea

Which statement about dna replication is true? a. eukaryotes only have one circular chromosome that unwinds at multiple locations. b. eukaryotes can only replicate one segment of a chromosome at a time. c. prokaryotes can only replicate their single circular chromosome in the nucleus. d. prokaryotes only have one origin of replication to initiate replication.

Iwill mark brainliest and all that sha-bang. what is the function of the endocrine system? a. control longer term response in the body. b. transmit messages throughout the body. c. remove waste from the body. d. all of the above

Which of the following particles always has a positive charge? a. electronb. neutron c. proton d. ion