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erik [133]
2 years ago
13

Which of the following energy transformation occur when humans use energy from food to exercise?

Biology
1 answer:
tatuchka [14]2 years ago
7 0

Answer:

D. Chemical - mechanical - thermal

Explanation:

D because the food is chemical and the mechanical is the human excersice, and it results in thermal

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Endoplasmic reticulum
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Reinforcement is most likely to occur when__________ (A) the environment is changing (B) hybrids have lower fitness than either
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So option B (hybrids have lower fitness than either parent population) is the correct answer.

What is Reinforcement?

Reinforcement is a consequence used in behavioral psychology to strengthen an organism's future behavior when that activity is preceded by a specific antecedent stimulus. This strengthening impact can be quantified as a higher frequency of behavior, a longer duration of behavior, a greater volume of behavior, or a shorter latency.

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2 years ago
Which phrases describe radioactive elements? Check all that apply.
svp [43]

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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hammer [34]

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A gene can be turned on or off by environmental factors or from other cells that activate proteins known as transcription factors.

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When you hear the term mutation, you usually think of change. But how do mutations influence traits that may be inherited?
lana [24]

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Both- changes in DNA.

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Mutations are defined as sudden changes in DNA that takes place by changing a particular nucleotide or a portion of DNA, or even a whole chromosome which has potential to change characters of an organism. Mutation was first proposed by Hugo de Vries who is also known as the Father of Mutation Theory.

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3 years ago
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