Life Science Review

Gracie and Jason were setting up an experiment to find out if mosquito larvae grow faster in warm water. Which of these must they include in their experiment?

• a graph

• a control group

• more uncontrolled variables

• a graphic showing the larvae

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Which of these organs is most responsible for allowing the food needed by cells to be passed into the blood stream?

• heart

• kidneys

• bladder

• intestines

The bark of a tree has a function much like the function of human –

• skin

• blood

• bones

• nerves

Geese are large birds that spend their summers in the north. In the autumn, they can fly 1,500 miles or more to reach their southern homes. In the spring, they fly back to their northern homes. The main advantage of making such a long trip twice a year is that geese –

• see many different parts of the country

• will have more resources they need

• are not bored during long northern winters

• get lots of exercise, which keeps them strong

Tags

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rabbits, caterpillars, deer, wolves, owls, grasshoppers, and humans are all...

• decomposers

• consumers

• carnivores

• producers

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Which is an example of a dog trait that is learned?

• sitting on command

• the ability to swim at birth

• its body shape and size

• its fur color

Foxes eat rabbits and mice. All of the mice die (so sad). The rabbit population stays the same.

What might happen to the foxes?

• foxes will decrease because they have less rabbits to eat

• MORE FOXES because they only have rabbits to eat

• MORE FOXES because they will be competing for less food

• Foxes will decrease because there is less available food for all of the foxes.

Tags

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What is the difference between a vertebrate and an invertebrate?

• Vertebrates do not have a backbone: invertebrates have a backbone.

• Neither vertebrates nor invertebrates have a backbone.

• Vertebrates have a backbone: invertebrates do not have a backbone.

• Both vertebrates and invertebrates have a backbone.

Animals that have hair or fur, give birth to live young, make milk for their young and breathes with lungs are called_____

• mammals

• reptiles

• amphibians

• fish

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Invertebrates with jointed feet, 2-3 body segments, sense organs and an exoskeleton are called

• Arthropods

• Worms

• Mollusk

• Stinging cells

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