What is the purpose of the outer ear?
a. to evaluate the quality of sound
b. to convert mechanical waves into electrical waves
c. to collect and focus sound waves
d. to convert sound waves into mechanical waves.

If the coding part of an mrna molecule is 1800 nucleotides (bases) in length, this molecule will contain codons and code for a polypeptide that is amino acids long.

In a lab, scientists grew several generations of offspring of a plant using the method shown. what conclusion can you make about the offspring? a. they formed from meiosis and mitosis. b. they have half the number of chromosomes as their parent. c. they have low genetic variability among them. d. they will be able to reproduce only after they grow flowers.

Explain 3 specific difference or 3 specific similarities between chimpanzee and human behavior