What is a tree with a woody trunk?
Options:
- (A) conifer
- (B) orchids
- (C) plants
- (D) trees
- (E) less water
- (F) vines
- (G) lycophytes
- (H) ferns
--
Let's think first: Most modern gymnosperms are trees with woody trunks. Conifers are examples of gymnosperms. Conifers are trees with woody trunks.... So the answer is [(A)]


What happens when muscular walls of arteries and veins contract?
Options:
- (A) connection
- (B) It expands
- (C) Dehydration
- (D) construction
- (E) forces
- (F) massive damage
- (G) constriction
- (H) contraction
--
Let's think first: Constriction occurs when the muscular walls of blood vessels contract. Arteries and veins are blood vessels. Constriction happens when the muscular walls of arteries and veins contract.... So the answer is [(G)]


When game animals move elsewhere, what else does?
Options:
- (A) relocation
- (B) prey animals
- (C) predatory animals
- (D) migratory birds
- (E) An object is seen
- (F) migrants
- (G) refract or absorb.
- (H) barks and snarls
--
Let's think first: Migration is a type of movement that changes population size. Predatory animals migrate with the game animals. As movement causes a change in game population size, predatory population size changes, too.... So the answer is [(C)]


The liver is formed after cells for into
Options:
- (A) death
- (B) humans
- (C) Energy.
- (D) tissue
- (E) migrate
- (F) grow
- (G) recovery
- (H) expelled
--
Let's think first: Cells are organized into tissues, and tissues form organs. Organs such as the stomach and liver also begin to develop. Cells are formed into tissues and tissues form the liver.... So the answer is [(D)]


Something in the polyp stage can form large colonies in shallow tropical what?
Options:
- (A) mountains
- (B) ice
- (C) porous
- (D) CO 2
- (E) complex
- (F) colonies
- (G) wetland
- (H) water
--
Let's think first: Corals form large colonies in shallow tropical water. Corals Corals are in the polyp stage. Something in the polyp stage can form large colonies in shallow tropical water.... So the answer is [(H)]


What are killer whales?
Options:
- (A) red and black
- (B) They have thick fur
- (C) dangerous
- (D) sharks
- (E) deep sea creatures
- (F) marine species
- (G) Absorb light
- (H) animals
--

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
user
Let's think first: Marine species live mainly in shallow coastal waters. Killer whales prefer shallow and colder coastal waters. Killer whales are a marine species.... So the answer is [(F)]