Anonymous
Anonymous asked in Education & ReferenceHomework Help · 10 years ago

If your good w/ Biology please help me out w/ these15 Biology Multiple Choice Questions?

1. Which process of the nitrogen cycle returns nitrogen gas to the atmosphere? (Points :1)

fixation

lightning

leaching

denitrification

2. In a desert ecosystem, long-nosed bats eat nectar from the flowers of saguaro and organ pipe cactuses and, in turn, pollinate the flowers. The bats are __________. (Points :1)

carnivores

herbivores

parasites

prey

3. Which term is used to describe the members of a food web that fix carbon dioxide gas from the environment, forming organic compounds? (Points :1)

autotrophs

consumers

decomposers

heterotrophs

4. Which of these government agencies includes the other three? (Points :1)

Bureau of Land Management

Department of the Interior

U.S. Geological Survey

U.S. Fish and Wildlife Service

5. Which of these is an example of a cause-and-effect relationship related to the health of the environment? (Points :1)

Fuel consumption declines in emerging economies.

Resource depletion causes overpopulation.

Deforestation contributes to global warming.

Global warming produces a hole in a the ozone layer.

6. Which of these BEST explains why a predator species tends to increase the average health and fitness of the prey population? (Points :1)

The strongest predators are able to capture the strongest members of the prey population.

The weakest individuals in the prey population are able to escape the strongest predators.

The predators kill mainly the older and weaker individuals in the prey population, leaving more resources for the healthier ones.

The prey species decides to adapt and escapes the predators, making them better able to reproduce.

7. Which food chain diagram correctly shows how energy flows through an ecosystem? (Points :1)

cattle à decomposers à humans à corn à sun

corn à sun à cattle à decomposers à humans

humans à sun à corn à decomposers à cattle

sun à corn à cattle à humans à decomposers

8. A process that returns carbon dioxide gas to the environment is __________. (Points :1)

photosynthesis

cellular respiration

the nitrogen cycle

the water cycle

9. Which of these organisms is MOST likely to be found at the top level of an energy pyramid? (Points :1)

apple tree

cow

golden eagle

mouse

10. Which of these is NOT an adaptation that helps prey hide from predators? (Points :1)

nocturnality

cryptic colors

mimetic colors

warning colors

11. Which of these organisms would not be found in the same food chain as grass? (Points :1)

elm tree

mouse

grasshopper

owl

12. Which of the following is a greenhouse gas? (Points :1)

oxygen

nitrogen

carbon dioxide

argon

13. Bacteria play a major role in which process? (Points :1)

nitrogen fixation

photosynthesis

ozone depletion

evaporation

14. Some wasps lay eggs on or inside another organism, such as a spider. When the eggs hatch, the larvae eat through the body of the spider, killing it. What kind of organisms are these wasps? (Points :1)

producers

saprotrophs

cannibals

parasites

15. Which governmental agency is responsible for monitoring the populations of endangered species? (Points :1)

CDC

NASA

DOE

EPA

2 Answers

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  • Anonymous
    10 years ago
    Best Answer

    1. Which process of the nitrogen cycle returns nitrogen gas to the atmosphere? (Points :1)

    denitrification

    2. In a desert ecosystem, long-nosed bats eat nectar from the flowers of saguaro and organ pipe cactuses and, in turn, pollinate the flowers. The bats are __________. (Points :1)

    herbivores

    3. Can't help.

    4. Which of these government agencies includes the other three? (Points :1)

    Department of the Interior

    5. Which of these is an example of a cause-and-effect relationship related to the health of the environment? (Points :1)

    Resource depletion causes overpopulation.

    6. Which of these BEST explains why a predator species tends to increase the average health and fitness of the prey population? (Points :1)

    The predators kill mainly the older and weaker individuals in the prey population, leaving more resources for the healthier ones.

    7. Which food chain diagram correctly shows how energy flows through an ecosystem? (Points :1)

    sun -> corn -> cattle -> humans -> decomposers

    8. A process that returns carbon dioxide gas to the environment is __________. (Points :1)

    cellular respiration

    9. Which of these organisms is MOST likely to be found at the top level of an energy pyramid? (Points :1)

    golden eagle

    10. Which of these is NOT an adaptation that helps prey hide from predators? (Points :1)

    warning colors

    11. Which of these organisms would not be found in the same food chain as grass? (Points :1)

    elm tree

    12. Which of the following is a greenhouse gas? (Points :1)

    carbon dioxide

    13. Bacteria play a major role in which process? (Points :1)

    nitrogen fixation

    14. Some wasps lay eggs on or inside another organism, such as a spider. When the eggs hatch, the larvae eat through the body of the spider, killing it. What kind of organisms are these wasps? (Points :1)

    parasites (guessing)

    15. Which governmental agency is responsible for monitoring the populations of endangered species? (Points :1)

    EPA

  • rappa
    Lv 4
    3 years ago

    If I'm expertise the phrases thoroughly, the proper reply might be B. Heterozygous approach a million set of dna donors? And recessive might imply that donor has a million set of dominant genes and a million set of recessive genes, that is the one assumption I could make seeing that there isnt ample information pointing out whether or not or no longer the second donor displays the recesive developments. So if the second donor has two units of genes, that might imply there might be two units of genes complete. If the second donor has a million set of genes, the recesive ones, then there might handiest be a million set of genes.

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