Name ______
Date ______
Science Chapter 3 (B) Study Guide: KEY
Adaptations in Ecosystems
Complete each statement with the correct term from the chapter.
1.When a volcano erupts it causes a(n) ___environmental change___.
2.An evidence of the organism’s past is found in _____fossils______.
3.Tropism occurs when plants ___bend______to reach sunlight.
4.An ___endangered______species of plant or animal is close to becoming extinct.
5.The arctic fox changes color with the season, using ___camouflage____tosurvive.
6.A hoverfly protects itself through_____mimicry____ because it resembles a bumblebee.
7.Cacti have ___adaptations_____ that allow them to survive in a desert with little water.
8.The mammoth species is ____extinct______, it no longer exists.
9.To save energy, some animals __hibernate__, or lie still for a long period of time and use very little energy.
10.A plant reacts to a(n) ___Stimulus______by changing its direction and pattern of growth.
Complete the items below.
11) Describe an example of an adaptation of a desert plant.
Plant adaptations: 1.) do not photosynthesize year-round; 2.) loses its leaves in winter; 3.) has a long, wood trunk
12) Plants have tropisms to what 3 factors: light, water, gravity
13) Dinosaurs became extinct because of natural factors. How is this different from pandas becoming endangered?
the actions and behaviors of people have caused pandas to become endangered.
14) What are 3 animal adaptations to a desert ecosystem?
1.) afennac fox has large ears to give off heat; 2.)a kangaroo rat gets water from food so it does not need to drink 3.) a camel stores fat in its hump for energy when food is scarce.
15.)Describe an adaptation that helps a snow leopard survive.
a snow leopard has spots so that it blends into the environment. Camouflage helps the snow leopard because it can hide from other animals and it can sneak up on its prey.
16) What changes might occur in a waterfront ecosystem after a hurricane?
trees and plants may be destroyed by flooding. Populations of some animals will decrease because of food and shelter loss. However, new plants will grow from seeds and new animals may thrive in this changed ecosystem.
17) Complete the following:
Animal Adaptations
arctic harefur color changes to match season
bearhibernates in winter
hedgehogprotects with spines
skunkprotects with strong odor
hoverflylooks like a bee
kangaroo ratgets water from food
18) Some organisms in different ecosystems share the same adaptations. What are two adaptations that desert plants and plants from other climates both have? Both have root systems, leaves, and many have flowers to attract animal pollinators.
19) Desert plants have a spongy tissue. How is this an adaptation?
the spongy tissue helps the plant to absorb and store water
20) A new power plant is scheduled to open soon. What dangers could a local pond face? the pond might be in danger of pollution and might be destroyed to clear area for the power plant.