Feathers help what kind of animals fly and provide insulation?
Options:
- (A) preventing heat transfer
- (B) dragons
- (C) passenger pigeons
- (D) butterflies
- (E) animals in the class Aves
- (F) airplanes
- (G) it protects them
- (H) retaining heat
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Let's think first: Feathers help birds fly and provide insulation. Class Aves is for the birds, literally. Feathers help animals in the class Aves fly and give them insulation.... So the answer is [(E)]


What has a special excretory structure?
Options:
- (A) Silk plants.
- (B) Insects.
- (C) a fish
- (D) animals
- (E) plants
- (F) Architecture structures.
- (G) barnacles
- (H) Corset structure.
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Let's think first: Some arthropods have special excretory structures. All insects are arthropods. Insects have special excretory structures.... So the answer is [(B)]


What do most molds get their organic compounds from?
Options:
- (A) dead organisms
- (B) particles in the air
- (C) fossil fuels
- (D) aqueous solution
- (E) burning coal
- (F) living organisms
- (G) swamp vegetation
- (H) sunlight
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Let's think first: Most fungi get organic compounds from dead organisms. Fungi include yeasts, molds, and fleshy fungi. Molds get organic compound from dead organisms.... So the answer is [(A)]


What can frogs, toads and salamanders use to smell and taste chemicals?
Options:
- (A) sense organs
- (B) Chemical energy
- (C) matter vibrating
- (D) larynx
- (E) Organic compounds
- (F) ocular organs
- (G) gills
- (H) harmful substances
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Let's think first: Amphibians have sense organs to smell and taste chemicals. Frogs, toads and salamanders are amphibians. Frogs, toads, and salamanders have sense organs to smell and taste chemicals.... So the answer is [(A)]


Fertilization occurs when an egg and what join together to form a diploid zygote?
Options:
- (A) rapid expansion
- (B) testosterone
- (C) gastropod shells
- (D) penis
- (E) peachleaf willow
- (F) pollen
- (G) male hormone
- (H) male gamete
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Let's think first: Fertilization occurs when a sperm and an egg fuse to form a diploid zygote. Male gametes are called sperm. Fertilization occurs when a male gamete and an egg fuse to form a diploid zygote.... So the answer is [(H)]


What is one way dogs learn to behave?
Options:
- (A) exercise
- (B) mating
- (C) ligt
- (D) playing
- (E) parties
- (F) slumber
- (G) firm hugs
- (H) Movement
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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: Playing is one way mammals and other animals learn how to behave. Cats are Mammals that Shed Dogs are Mammals that Wag their tails. Playing is one way dogs learn to behave.... So the answer is [(D)]