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Semmy [17]
3 years ago
5

Polar Easterlies in the Northern Hemisphere blow from? a.)west to east b.)east to west c.)north to south d.)south to north

Biology
1 answer:
poizon [28]3 years ago
5 0
The answer is D.) South To North
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allsm [11]

Answer:

Mutations during meiosis can often lead to disorders, diseases, etc.

Explanation:Let's say that one of the tetrads formed in the first steps of meiosis It doesn't separate and goes on. When making gametes, some will contain the necessary amount of chromosomes while others will not

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3 years ago
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A farmer wants to know if adding antibiotics to cow feed will fatten them up. He takes two groups of 25 cows each. One group is
galina1969 [7]

Answer:

The correct answer is-

Hypothesis: Antibiotics cause weight gain in cows.

Independent Variable: Antibiotic pill

Dependent Variable: Weight of cow

Control Group: a group of cows gets a placebo pill

Experimental Group: a group of cows gets an antibiotic pill

Explanation:

The Independent variable is the variable that causes the response from the dependent variable or affects the dependent variable in this study the antibiotic pill affects the weight of cows so The independent variable is an antibiotic pill and the dependent variable is the weight of cows.

The control group is the group of subjects that did not get the treatment in a scientific study in the case of this study group of cows that receives the placebo pill is the control group and the experiment group is subjects that receive the treatment which is a group with the antibiotic pill.

4 0
3 years ago
Which level of biodiversity includes species richness and evenness?
Novay_Z [31]
The answer is:

Community Diversity.

Reason Why: Here is an example, say you have 2 communities, community 1 is A, and community 2 is B, Communities A and B contain 5 tree species, However because community B has greater species evenness it has greater species diversity.
Community A is dominated by one of its 5 species and so has lower species diversity than.....community B, which has the same 5 species but in equal proportion.

Richness- Number of Species
Evenness-Relative abundance.

Hope This Helped!
7 0
2 years ago
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How did the atmosphere come to be on Earth
emmasim [6.3K]
Nobody knows it just did 
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3 years ago
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Suppose there are 500 units of energy available at the producer level of the energy pyramid. Approximately how many units of ene
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The answer to this question with the options presented in the problem would be A. 50.

It is said by experts that in the energy pyramid, 90% of energy is lost for life processes such as photosynthesis, respiration, and the like. So this means that only 10% will remain for the consumer to have. That would be saying that if suppose there are 500 units of energy available at the producer level of the energy pyramid, to get the units of energy available to the first-level consumer is  to have the 10% of 500 which is 50.
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2 years ago
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