Posted on 21 December 2011. Tags: Answer, climax community, community population, ecosystem, energy pyramid, freshwater ecosystem, least three ways, oxygen, photosynthesis, pioneer species, process of photosynthesis, pyramid, pyramid energy, rich molecules, soil life
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. (3 points)
Posted in Affiliate Marketing 101
Posted on 01 November 2011. Tags: 8th grade science, Answer, biotic factors abiotic factors, carnivore omnivore, essential nutrients, function, living organisms, point, population ecology, population size, rich molecules, Science, Size, species benefits, water and sky
1. What is the function of a producer in a food chain?
.to consume energy from various plants and animals in the food chain
.to break down essential nutrients and return them to the soil
.to create energy-rich molecules, such as glucose
.to create symbiosis in an ecosystem
2. The role a species plays within a community is its
.niche.
.habitat.
.population.
.ecology.
3. The relationship in which one species benefits and the other is unharmed is known as
.a niche.
.commensalism.
.mutualism.
.parasitism.
4. Population size is limited by all of the following except
.biotic factors.
.abiotic factors.
.competition.
.All of these can limit population size.
5. The _________________ is the part of Earth’s crust, water, and sky that supports living organisms. (1 point)
6. Using all the terms provided here, construct a food chain of your own. Make sure to show the flow of energy in your food chain. Terms to use include producer, herbivore, carnivore, omnivore, and decomposer. (1 point)
Posted in Affiliate Marketing 101
Posted on 28 October 2011. Tags: climax community, Community, community population, ecosystem, energy pyramid, least three ways, oxygen, photosynthesis, pioneer species, process of photosynthesis, pyramid, pyramid energy, rich molecules, soil life, tundra biomes
1. The organisms of one species living together in the same place at the same time are a ____.
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?
herbivore
bacteria
fungi
5. Nitrogen in the soil is used by ____.
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 ____________________.
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 ____________________.
11. A symbiotic relationship in which both organisms benefit is called ____________________.
12. Average weather conditions over time are called ____________________.
(1 point)
Short Answer
13. Compare and contrast a community and an ecosystem.
14. Why must a producer be at the base of every food chain?
15. Describe the relationship between CO2 and oxygen in the process of photosynthesis. How does this benefit both plants and animals?
16. Compare a climax community to a pioneer species.
17. List at least three ways in which grassland and tundra biomes are similar.
Posted in Affiliate Marketing 101