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madreJ [45]
4 years ago
14

Select the choice that best completes the following sentence:

Biology
1 answer:
rjkz [21]4 years ago
3 0
B. Magnetism. A compass relies on the Earth's magnetic field to provide direction.
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algea bottom of foodchain with water worms and mice?

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3 years ago
What electrons are used to form iconic and covalent bonds
Sever21 [200]

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Valence electrons, or the electrons that are farthest from the nucleus.

5 0
3 years ago
The diagram below shows the stump of a tree whose root grew into a small crack in bedrock and split the rock apart.
Drupady [299]

Answer:

Physical Weathering

Explanation:

As per the given conditions in the question, the primary effect is <u>mechanical action</u> which is also known as a <u>physical weathering</u>. During mechanical action, a rock is disintegrated into the smaller pieces. In the given statement, <u>the root of tree would grow in the crack and try to develop a strong network to get nutrients necessary for tha tree growth</u>. Thus, the <u>root would exert a pressure</u> in the crack to make more space for its growth and development (root network). This is primarily a mechanical action and an example of physical weathering.

5 0
3 years ago
hysical anthropologist Eva Hernandez visits a group of Yamomamo people in Venezuela and finds that only 3 individuals in a small
Naily [24]

Answer:

Genetic drift (sampling error)

Explanation:

According to the given information, the population under study has a small size and is more likely to be affected by genetic drift. Genetic drift refers to any chance event that leads to random changes in the allele frequencies of a population over time.

It may occur by sampling error that either makes the allele frequency 100% in the population or completely removes it from the population. Sampling error occurs quickly in the small population. The initial frequency of "blood type A" was 3/85= 0.035. Over the time period of 45 years, sampling error during gamete formation and random fertilization removed all the individuals with "blood type A" from the population and reduced its frequency to 0.

4 0
3 years ago
What is evidence that wood contains stored energy?
marin [14]

Answer:

The stored energy in the wood is chemical energy, meaning that it can be released by a chemical reaction (burning). It's closely related to those fossil fuel energies, because the chemical energy was formed by photosynthesis, using energy from sunlight as the input.

Explanation:

5 0
3 years ago
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