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stellarik [79]
3 years ago
12

Human activities, particularly the combustion of ____________, are altering the climate by increasing CO2 in the atmosphere.

Biology
2 answers:
harina [27]3 years ago
8 0

The answer is A) fossil fuels

Contact [7]3 years ago
7 0
A. fossil fuels is the correct answer
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Which phrases describe radioactive elements? Check all that apply.
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A radioactive element is an element which is subject to spontaneous degeneration of its nucleus followed by the emission of alpha, beta and gamma particles. All elements with atomic numbers greater than 83 are radioactive.

The given phrases that describe radioactive elements are-

They have a consistent number of particles - the particles are alpha, beta and gamma particles.

They have a half-life that determines their rate of decay.

Explanation for other options:

Not all elements occur in nature. Radioactive decay rates may not be constant as the decay happens when a radioactive substance emits a particle. It is not possible to predict exactly when a given atom of a substance will emit a particular particle. When the radioactive element release energy and particles, it decays.

5 0
3 years ago
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Which of these requires a host cell to copy its genetic material and protein coat?
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The virus' DNA becomes a part of the host cell's DNA, and every time the host cell copies and divides, it also copies viral DNA. The viral DNA may remain inactive (a provirus) for a long time, but it can become active when it frees itself from the host's chromosome, which triggers the lytic cycle.

I forget which one is the virus' DNA


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3 years ago
What are two things that all non vascular plants share?
Zepler [3.9K]
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3 years ago
Which organisms have the least amount of stored energy in an ecological pyramid
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<h2>Answer</h2>

Tertiary Consumers get least amount of the energy.

<h2>Explanation</h2>

In an ecological pyramid less energy is available to organisms in the upper level because each organism releases some of the chemical energy as food and to the air as thermal energy .Therefore primary consumers get almost 10% of autotrophs prduced energy. The second consumers in the pyramid get 1% from primary consumer. In the case of tertiary consumers, they get only 0.1%. Hence the top consumer of a food pyramid receives the least energy.


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