question: What kind of animals conserve energy with their hair or fur?
Options:
- (A) fur
- (B) bears
- (C) mammals
- (D) sweating
- (E) frogs
- (F) cactus
- (G) goats
- (H) humans
answer: Mammals conserve body heat with their hair or fur. Basically, heat is energy. Mammals conserve energy with their hair or fur.
The answer is (C)

question: How do proteins leave the er?
Options:
- (A) aqueous solution
- (B) it's state
- (C) Veins and arteries.
- (D) Move to another area
- (E) allow growth
- (F) active transport
- (G) It expands
- (H) movement
answer: Vesicle transport requires energy, so it is also a form of active transport. Proteins leave the ER in transport vesicles 5. Proteins leave the ER via active transport.
The answer is (F)

question: When substances react with one another the sharing or transfer of what occurs?
Options:
- (A) Energy.
- (B) voltage
- (C) heat produced
- (D) heat energy
- (E) electrons
- (F) a solute
- (G) kinetic
- (H) Energy
answer: Chemical bonds form when substances react with one another. Chemical Bonding A chemical bond is the sharing or transfer of electrons. The sharing of transfer of electrons happens when substances react with one another.
The answer is (E)

question: Bacterial infection can inhibit ejaculation of what?
Options:
- (A) babies
- (B) sperm
- (C) sugar
- (D) animals
- (E) erection
- (F) eggs
- (G) humans
- (H) pregnancy
answer:
Ejaculation occurs when muscle contractions propel sperm from the epididymes. Bacteria usually cause epididymitis. Ejaculation of sperm can be inhibited by bacterial infection.
The answer is (B)