Which animal has a backbone?
Options:
- (A) camels
- (B) snail
- (C) bats
- (D) cricket
- (E) a fish
- (F) bird
- (G) koalas
- (H) octopus
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Let's think first: Birds are endothermic tetrapod vertebrates. Animals with backbones are called vertebrates. All birds have backbones.... So the answer is [(F)]

Nematodes reproduce how?
Options:
- (A) root growth
- (B) heat or cold
- (C) pollen
- (D) electrically
- (E) sexually
- (F) seeds
- (G) survive
- (H) a cuticle
--
Let's think first: Roundworms reproduce sexually. Nematodes are millimeter-sized roundworms. Nematodes reproduce sexually.... So the answer is [(E)]

Dna is found where in a cell?
Options:
- (A) mitochondria
- (B) complex
- (C) alveoli
- (D) membrane
- (E) plants
- (F) infected
- (G) cytoplasm
- (H) nucleus
--
Let's think first: DNA is found in chromosomes. Chromosomes are located in the nucleus of a cell. DNA is found in the nucleus of a cell.... So the answer is [(H)]

Sperm and egg nuclei combine to do what?
Options:
- (A) combine genes
- (B) rapid expansion
- (C) fertilize gametes
- (D) reproduce
- (E) allow growth
- (F) build proteins
- (G) spread flower seeds
- (H) remove eggs
--
Let's think first: Fertilization of gametes produces a diploid zygote. Sperm and egg nuclei combine to form the diploid zygotic nucleus 2. Sperm and egg nuclei combine to fertilize gametes.... So the answer is [(C)]

What is bilaterally symmetrical and a protostome?
Options:
- (A) gastropod shells
- (B) honeybees
- (C) humans
- (D) shells
- (E) bears
- (F) the common snail
- (G) peachleaf willow
- (H) the eyes
--
Let's think first: Mollusks are invertebrates such as the common snail. Mollusks are bilateraly symetrical and are protostomes. The common snail is bilaterally symmetrical and a protostome.... So the answer is [(F)]

How do fungi get nutrition?
Options:
- (A) Exfoliation
- (B) agriculture
- (C) heat produced
- (D) Cooking
- (E) absorb it
- (F) Energy
- (G) Evaporation
- (H) glucose
--
Let's think first: Fungi lack chlorophyll, so they cannot make food by photosynthesis as plants can. Fungi are multicellular organisms that absorb their food molecule by molecule. Fungi lack chlorophyll, so they must absorb nutrition molecule by molecule.... So the answer is [(E)]