1. The organisms of one species living together in the same place at the same time are
a ____.? 1. The organisms of one species living together in the same place at the same time are a ____.
(1 point)
community
population
niche
all of the above
2. Which process uses oxygen in plants, algae, and animals?
(1 point)
transpiration
photosynthesis
chemosynthesis
respiration
3. During photosynthesis, light energy becomes ____ energy.
(1 point)
soil life
chemical
mechanical
pyramid
4. Which of the following eats consumers?
(1 point)
carnivore
herbivore
bacteria
fungi
5. Nitrogen in the soil is used by ____.
(1 point)
plants
animals
both a and b
neither a nor b
6. As you move upward, from level to level, in an energy pyramid, energy ____.
(1 point)
decreases
increases
stays at the same level
is destroyed
7. Of the following, which is NOT a freshwater ecosystem?
(1 point)
lake
pond
estuary
swamp
Completion
8. The portion of Earth that supports life is called the ____________________.
(1 point)
9. The burrow a chipmunk digs under a patio stone is an example of a(n) ____________________.
(1 point)
10. Organisms that can use the energy from an outside source such as the Sun to create energy-rich molecules are called ____________________.
(1 point)
11. A symbiotic relationship in which both organisms benefit is called ____________________.
(1 point)
12. Average weather conditions over time are called ____________________.
(1 point)
Short Answer
13. Compare and contrast a community and an ecosystem.
(3 points)
14. Why must a producer be at the base of every food chain?
(3 points)
15. Describe the relationship between CO2 and oxygen in the process of photosynthesis. How does this benefit both plants and animals?
(3 points)
16. Compare a climax community to a pioneer species.
(3 points)
17. List at least three ways in which grassland and tundra biomes are similar.
