FREE AND STUDY GAMES ABOUT BIO CH 4 UNIT TEST

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FREE AND STUDY GAMES ABOUT BIO CH 4 UNIT TEST

Actual Qs and Ans Expert-Verified Explanation

This Exam contains:

-Guarantee passing score -34 Questions and Answers -format set of multiple-choice -Expert-Verified Explanation

Question 1: small pieces of dead and decaying plant and animal remains.

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Detritus Question 2: Autotrophs can be classified into two groups according to which of these properties.

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Energy source ether sunlight or Chemicals Question 3: is a series of organisms in which energy is transferred from one organism to another.

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Food Chain Question 4: The diagram shows a model of feeding relationships in an ecosystem. What is shown by the arrows that lead to and from the racoon.

Answer:

The raccoon is a part of one food web and several overlapping food chains

Question 5: some bacteria cannot only tolerate high temperatures near the vent but can also harness chemical energy from inorganic molecules such as hydrogen sulfate.

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Chemosynthesis Question 6: process in which only certain types of bacteria can convert nitrogen gas into ammonia.

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Nitrogen Fixation Question 7: Would including photosynthesis in the model be reasonable and for what reason.

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Yes, because water is a reactant or input of photosynthesis Question 8: Food chain figure: Daniel's observations. Daniel's Observations in the food chain model provide the strongest evidence for which statement about Pond organisms?

Answer:

matter cycles and energy flows through pond organisms from primary producers to series of consumers

Question 9: the total amount of living tissue within a given trophic level.

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Biomass Question 10: Karen is classifying a group of organisms that are either primary producers or consumers. What is a direct source of energy for all the consumers?

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producers or consumers Question 11: when matter flows from one trophic level to another, and elements are recycled within and among ecosystems.

Answer:

Biogeochemical Cycles

Question 12: another name for heterotrophs.

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Consumers Question 13: process in which some bacteria obtain energy by converting nitrates into nitrogen gas, which is released into the atmosphere.

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Denitrification Question 14: Danielle observes a crayfish nibbling on the remains of a dead Sunfish. Construct a new food chain based on this observation by matching the organisms to the correct locations in the diagram

Answer:

algae, snail, sunfish, crayfish

Question 15: Which statement describes all primary producers.

Answer:

All primary producers make their own food (maybe)

Question 16: any nutrient whose supply limits productivity.

Answer:

Limiting Nutrient

Question 17: must acquire energy from other organisms usually by eating them.

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Heterotrophs Question 18: Year after year Xavier raises a garden in the same pot of soil he observes the plants grow less abundantly and they produce fewer vegetables. Which of these processes????????

Answer:

the rate at which soil bacteria perform nitrogen fixation

Question 19: able to store energy in ways that make it available to other organisms.

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Primary Producers Question 20: What scientific reasoning provides evidence that this solution could be effective.

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photosynthesis acts to remove carbon dioxide directly from the atmosphere Question 21: build living tissue using energy to convert carbon dioxide and water into oxygen and energy-rich carbohydrates such as sugars and starches.

Answer:

Photosynthesis

Question 22: network through which both energy and matter move.

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Food Web Question 23: Which vital element for life participates for the carbon, nitrogen, and phosphorus cycles.

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oxygen Question 24: Which of the following best describes the flow of energy through a food chain.

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energy flows from primary producers to consumers in one direction only Question 25: A pyramid of biomass is one way to model an ecosystem. How does the amount of biomass generally change from the bottom of the pyramid to the top?

Answer:

the amount of biomass decreases

Question 26: How does water transfer when it evaporates from the ocean?

Answer:

from the hydrosphere to the atmosphere