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andreyandreev [35.5K]
3 years ago
13

Which of the following correctly identifies the most productive layer of a soil profile?

Biology
2 answers:
DedPeter [7]3 years ago
5 0
Just below the O horizon is “topsoil” or “A” horizon.
Usually it is darker than the lower layers, loose and crumbly with varying amounts or organic matter. Plants roots, bacteria, fungi, and small animals are abundant here, and plants thrive in it. It is generally the most productive layer of soil.
atroni [7]3 years ago
4 0

Answer:

A. topsoil, just below undecomposed organic matter.

Explanation: It's the answer on edgenuity ^-^

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Select the correct answer from each drop-down menu.disease. Some carriers of the disease exhibit Sickle cell disease is passed o
Assoli18 [71]

Answer:

<u>Inheriteted/Beneficial</u>

Explanation:

<em>First drop down</em>: "Sickle cell disease is passed on from parent to offspring."

<u>Inheriteted</u>

<em>Second drop down</em>

A increased resistance to a bad thing (malarial parasites) would be <u>Beneficial</u>

8 0
3 years ago
What do you notice about the temperature at each of the layers boundaries
ankoles [38]

Answer: The mesosphere starts at 31 miles (50 km) and extends to 53 miles (85 km) high. The top of the mesosphere, called the mesopause, is the coldest part of Earth's atmosphere, with temperatures averaging about minus 130 degrees F (minus 90 C). This layer is hard to study

Explanation: hope this helps please give brainliest!

4 0
3 years ago
Help look at the picture​
Inessa05 [86]

The Steady State Theory state that the density of the universe was remaining constant.

<h3>Steady State Theory:</h3>

In cosmology, a steady-state theory is a perspective that holds that the universe is constantly expanding while maintaining a constant average density. According to this theory, the matter is continuously created to form new stars and galaxies at the same rate that older ones fade away due to their expanding distance and accelerating recession. The average density and configuration of galaxies are the same as any location in a steady-state universe, which has no beginning or end in time.

British scientists Sir Hermann Bondi, Thomas Gold, and Sir Fred Hoyle first proposed the hypothesis in 1948. Hoyle expanded on it in order to address issues that had come up in relation to the alternative big-bang theory. According to the hypothesis, in order to maintain a constant average density of matter across time, the new matter must constantly be created, primarily as hydrogen. With nearly five times as much dark matter, the amount needed is small and not immediately observable: one solar mass of baryons per cubic megaparsec every year, or one hydrogen atom per cubic meter every billion years.

Learn more about steady-state here:

brainly.com/question/4956578

#SPJ1

5 0
1 year ago
Which of the following statements are TRUE about the pathway of cellular respiration?
sesenic [268]
I think The second step of cellular respiration is the Kreb's cycle and it occurs in mitochondrial matrix. 
First step of cellular respiration is glycolysis and it occurs in the cytoplasm of a cell.
I am not really confident about my answer.
If I am wrong please correct me. <span />
6 0
3 years ago
The deforestation of rainforest ecosystems for logging and for farming has had what direct effect on those areas?
zloy xaker [14]
Loss of habitat for the surrounding wildlife. therefore a long term affect of the wildlife that lived there. If deforestation continues the forest and its inhabitants with either have to relocate or die trying to find a new place to live.
8 0
3 years ago
Read 2 more answers
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