(question). If an animal has a spinal column in their skeletal system what is it called?
Options:
- (A) skeletal animal
- (B) vertebrate
- (C) A Greek letter
- (D) invertebrated
- (E) organ
- (F) critical organs
- (G) spined animal
- (H) epidermal
(answer). Vertebrates are animals that have a backbone. Vertebrates generally have a backbone called the spinal column. Vertebrates are animals that have a spinal column in their skeletal system.
The answer is (B)


(question). Phytoplankton have a clever way of making food from what?
Options:
- (A) sunlight energy
- (B) water energy
- (C) heat energy
- (D) heat produced
- (E) chemical energy
- (F) mechanical energy
- (G) organic matter
- (H) refraction of light
(answer). Phytoplankton are bacteria and algae that use sunlight to make food. Plants have a very clever way of using the energy from sunlight to make their food. Phytoplankton have a clever way of making food from sunlight energy.
The answer is (A)


(question). Most what in a gene pool are beneficial to organisms?
Options:
- (A) resistance activities
- (B) genetic ties
- (C) genetic distractions
- (D) Plant reproduction
- (E) fur and fat
- (F) resistance
- (G) genetic variations
- (H) genetic similarities
(answer). Mutation creates new genetic variation in a gene pool. Most mutations are beneficial to the organism. Most genetic variations in a gene pool are beneficial to organisms.
The answer is (G)


(question). What process helps hormones travel throughout the body in the bloodstream?
Options:
- (A) hydration
- (B) mitosis
- (C) sleeping
- (D) sweating
- (E) oxygen
- (F) allow growth
- (G) eating
- (H) breathing
(answer).
Endocrine hormones travel throughout the body in the blood. Breathing affects the flow of hormones through the endocrine system. Breathing allows hormones to travel throughout the body in the bloodstream.
The answer is (H)