What generally carries something bright red?
Options:
- (A) bears
- (B) veins
- (C) arteries
- (D) mammals
- (E) nerves
- (F) fur seals
- (G) Cars
- (H) bones
--
Let's think first: Arteries generally carry oxygen-rich blood. Oxygen-rich blood is bright red. Arteries generally carry something bright red.... So the answer is [(C)]

Fertilization occurs when _ fuse.
Options:
- (A) fertile
- (B) sperm ducts
- (C) heat
- (D) eggs
- (E) seeds
- (F) gametes
- (G) pollen
- (H) ovaries
--
Let's think first: Fertilization occurs when a sperm and an egg fuse. Sperm and eggs are cells known as gametes. Fertilization occurs when gametes fuse.... So the answer is [(F)]

What size are cells?
Options:
- (A) either huge or tiny
- (B) non existent
- (C) dense
- (D) large
- (E) white
- (F) tiny
- (G) dead
- (H) albino
--
Let's think first: Cells vary in size as well as shape, but all cells are very small. Atoms are tiny particles that are too small to see. Cells vary in size as well as shape, but all cells are very tiny.... So the answer is [(F)]

Forests stabilize what influences what growth?
Options:
- (A) Trees
- (B) Energy
- (C) wind
- (D) seasons
- (E) rain
- (F) plant
- (G) Winter
- (H) Energy.
--
Let's think first: Climate influences plant growth, biodiversity, and adaptations of land organisms. Climate Forests stabilize climate. Forests stabilize what influences plant growth.... So the answer is [(F)]

Specialization occurs when competing groups of interbreeding individuals evolve different what?
Options:
- (A) color of leaves
- (B) fur and fat
- (C) forces
- (D) colors
- (E) frontal zones
- (F) graptolites
- (G) sensory neurons
- (H) adaptations
--
Let's think first: Specialization occurs when competing species evolve different adaptations. Species is a group of interbreeding individuals. Specialization occurs when competing groups of interbreeding individuals evolve different adaptations.... So the answer is [(H)]

How do living things have children?
Options:
- (A) death
- (B) people
- (C) humans
- (D) babies
- (E) it needs them
- (F) reproduction
- (G) mitosis
- (H) production
--
Let's think first: Reproduction is the process by which living things give rise to offspring. Seed refers to offspring, children. Living things use reproduction to have children.... So the answer is [(F)]