7. Which of the following terms is used to describe a linear sequence in which energy is transferred from one organism to the next as each organism eats another organism?
a. trophic level
b. food web
c. energy pyramid
d. food chain
D
10. Which of the following is an example of ecological succession?
a. a planted shrub growing on a patio
b. mosses covering the floor of an old building
c. a tomato planted in a garden
d. none of the above
Either B or D..
21. Humans affect marine ecosystems by which of the following?
a. overfishing
b. oil spills
c. pesticides
d. all of the above
A
27. The tundra is most suitable to a vertebrate that
a. requires nesting sites in tall trees
b. is cold blooded
c. has a green outer skin for camouflage
d. can migrate hundreds of kilometers each summer
Either B or D..
Thanks
-MC
7 is D
10 is probably B because mosses are the first thing to grow naturally after the destruction of an environment like building a building
21 is D the y all effect marine ecosystems and are caused by humans
27 is D
r
r
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yy
The tundra is the most suitable to a vertebrate that
To answer the question about a linear sequence in which energy is transferred from one organism to the next as each organism eats another, we need to know the options. The answer choices are:
a. trophic level
b. food web
c. energy pyramid
d. food chain
To determine the correct answer, let's break down the options:
a. Trophic level: This term refers to the position an organism occupies in a food chain or energy pyramid, so it is not the best answer.
b. Food web: A food web is a more complex representation of energy flow in an ecosystem, showing the interconnected relationships between various organisms. This is not a linear sequence, so it is not the correct answer.
c. Energy pyramid: An energy pyramid represents the energy transfer between trophic levels, but it does not specifically describe the linear sequence of energy transfer from one organism to another.
d. Food chain: This term describes the linear sequence of energy transfer from one organism to another as each organism eats another organism. The correct answer is d. food chain.
Now let's move on to the next question:
The question asks for an example of ecological succession. The options are:
a. a planted shrub growing on a patio
b. mosses covering the floor of an old building
c. a tomato planted in a garden
d. none of the above
To find the correct answer, let's analyze each option:
a. A planted shrub growing on a patio: This does not represent ecological succession since it is a deliberate action taken by humans.
b. Mosses covering the floor of an old building: This is an example of ecological succession, as mosses are colonizing a new and previously unoccupied surface.
c. A tomato planted in a garden: This is not an example of ecological succession because it is a result of human cultivation, not a natural process.
d. None of the above: Since option b. is an example of ecological succession, the correct answer is not "none of the above." The correct answer is b. mosses covering the floor of an old building.
Moving on to the next question:
The question asks how humans affect marine ecosystems. The options are:
a. overfishing
b. oil spills
c. pesticides
d. all of the above
To find the correct answer, we need to review each option:
a. Overfishing: This is a significant human impact on marine ecosystems as it disrupts the natural balance of species and can lead to the depletion of certain populations.
b. Oil spills: These catastrophic events can have severe consequences for marine life, causing habitat destruction and harming organisms directly.
c. Pesticides: While pesticides mainly impact terrestrial ecosystems, some pesticides can end up in aquatic systems through runoff or direct application, affecting marine life.
d. All of the above: This option includes all the previously mentioned options, and since all of them are valid ways in which humans affect marine ecosystems, the correct answer is d. all of the above.
Lastly, let's address the final question:
The question asks which vertebrate is most suitable for the tundra. The options are:
a. requires nesting sites in tall trees
b. is cold-blooded
c. has a green outer skin for camouflage
d. can migrate hundreds of kilometers each summer
To determine the correct answer, let's assess each option:
a. Requires nesting sites in tall trees: This option is unlikely to be suitable for the tundra since trees are not prevalent in this biome.
b. Is cold-blooded: This option is suitable for a reptile or amphibian as they are able to adjust their body temperature based on the environment.
c. Has a green outer skin for camouflage: This option is more applicable to animals in forested or grassland habitats that offer a greener environment, but it is not specific to the tundra.
d. Can migrate hundreds of kilometers each summer: This option is suitable for some bird species that migrate long distances during the summer, seeking better food and nesting conditions.
Considering the characteristics of the tundra, the vertebrate that is most suitable would be the one that can migrate hundreds of kilometers each summer (option d).