What does cricoid contain?
Options:
- (A) Bodily water
- (B) cellulum
- (C) cellulite
- (D) Energy
- (E) hydrocarbons
- (F) cellulose
- (G) cellular
- (H) layers of fat
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Let's think first: Cartilage is a tough tissue that contains a protein called collagen. Membranes attached to the cricoid cartilage . Cricoid is a tough tissue that contains a protein called collagen.... So the answer is [(F)]

Frogs have a _-chambered heart.
Options:
- (A) alveoli
- (B) organ
- (C) ovaries
- (D) oxygen
- (E) edible
- (F) three
- (G) nektar
- (H) CO 2
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Let's think first: Amphibians have a relatively complex circulatory system with a three-chambered heart. All frogs are amphibians. Frogs have a three-chambered heart.... So the answer is [(F)]

If not managed properly, nutrients can be depleted on
Options:
- (A) environment
- (B) Dehydration
- (C) fronts
- (D) our planet
- (E) coastlines
- (F) the skin
- (G) farmland
- (H) Power plants
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Let's think first: Soil can be depleted of nutrients. Wampanucket soils are prime farmland soils. Farmland can be depleted of nutrients.... So the answer is [(G)]

What grow in width and length.?
Options:
- (A) crocodiles
- (B) sedimentary rocks
- (C) vegetation
- (D) remains of prehistoric life
- (E) swamp vegetation
- (F) shrub beds
- (G) underground systems
- (H) loose dirt
--
Let's think first: Roots grow in length and width from primary and secondary meristem. Kids see the underground root systems of trees and then an aerial view of plants in the city. Underground systems grow in width and length.... So the answer is [(G)]

What are important biomes?
Options:
- (A) important habitats
- (B) fruits, vegetables and plants
- (C) retaining heat
- (D) stars, comets and planets
- (E) cats, dogs and humans
- (F) absorb light energy
- (G) marshes, bogs, and swamps
- (H) remains of prehistoric life
--
Let's think first: Wetlands are extremely important biomes. Palustrine wetlands include marshes, bogs, and swamps. Marshes, bogs and swamps are very important biomes.... So the answer is [(G)]

Amphibians with what are more advanced than fish?
Options:
- (A) four eyes
- (B) sensory neurons
- (C) rapid expansion
- (D) layers of fat
- (E) four limbs
- (F) kinetic energy
- (G) tails
- (H) many limbs
--
Let's think first: Amphibians are the first true tetrapods, or vertebrates with four limbs. All vertebrates more advanced than fish have four limbs, each with up to five fingers or toes. Amphibians with four limbs are more advanced than fish.... So the answer is [(E)]