Animal Unit Test Review

Animal cells are

• eukaryotic

• prokaryotic

• contain chlorplasts

• have cell walls

Which kingdom contains living things that have complex, multi-cellular organiation, are capable of movement, and cannot make their own food?

• fungi

• plants

• animals

• prokaryotes

The hydra is an animal that lives in freshwater streams and ponds. It reproduces by producing eggs and also by budding, a form of asexual production. What advantage does budding give hydra?

• Hydra can reproduce through meiosis

• Hydra can reproduce without the need for a mate

• Budding takes more time than asexual reproduction

• Budding increases genetic diversity among hydra

Which is the main reason a dog and panda are classified as mammals?

• they both have chlorophyll

• they both produce milk for their young

• they can produce their own food through photosynthesis

• They both undergo respiration to relase energy from food

Both whales and clown fish live in oceans. Whales are classified as mammals and clown fish are classified as fish. Which characteristics makes whales different from clown fish?

• Clown fish give birth to babies while whales lay eggs

• Clown fish are invertebrates while whales are vertebrates

• Clown fish breathe through gills while whales breathe through lungs

• Clown fish are warm blooded while whales are cold blooded organisms

What main characteristics are used to classify the bird and snake as vertebrates?

• They both have a notochord

• They are both cold blooded

• They are both warm blooded

• They both have a backbone

What is the main characteristic that classifies the earthworm and polar bear shown as animals instead of plants?

• They are both autotrophs

• They both undergo respiration

• They are both heterotrophs

• They both undergo photosynthesis

When a new organism is discovered, it is classified based on

• What the organism eats

• The organism's physical characteristics

• Where the organism lives

• When the organism was discovered

Which statement correctly compares living things and nonliving things?

• Only living things are made of cells

• Only nonliving things are made of cells

• All living and nonliving things are made of cells

• All living and some nonliving things are made of cells

Why are scientists still finding and cataloguing new species of organisms?

• Scientists can only write about a few organisms per year

• scientists spend more time studying extinct organisms than living ones

• there are organisms that have not yet been discovered in many remote areas on earth

• scientists spend most of their time in laboratories and do not get out much to look for organisms