Which of the following is considered a method of horizontal gene transfer in bacteria?

A) binary fission only
B) transformation and binary fission
C) conjugation and budding
D) transduction and conjugation only
E) conjugation, transformation, and transduction

Emulsification

A) converts small lipid droplets into larger droplets.
B) occurs in the gallbladder.
C) chemically digests lipids.
D) increases surface area for lipid digestion.
E) involves enzymes.

Which process or element was present first?

A) aerobic respiration
B) chloroplasts
C) mitochondria
D) fungi
E) photosynthesis

Echinoderms are characterized by bilateral symmetry in adults, a water vascular system, tube feet, and spiny skin.

Which of the following is a nonfilterable component of the blood?

A) urea
B) glucose
C) amino acids
D) albumin
E) sodium chloride

In the female, ____ stimulates ovulation.

A) GnRH
B) LH
C) FSH
D) estrogen
E) progesterone