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Rasek [7]
3 years ago
15

Help me!

Biology
1 answer:
andrey2020 [161]3 years ago
5 0

As the bear enters hibernation, its metabolic processes such as body temperature, heart rate, and respiratory rate are reduced. But bears do not lower the body temperature as much as once thought. Their hibernation temperature is around 88 degrees and waking temperature is 100 degrees F. This relatively high sleeping temperature allows bears to become fully alert if aroused, perhaps to enable the bear to protect itself from predators and other dangers without unnecessarily taxing their energy reserves. Over the course of a hibernating season it is thought that bears use approximately 4 thousand calories a day, which results in a weight loss of about 20 percent of it body weight by spring.

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Please help !!!!!!!20 minutes
Gala2k [10]

That would be erosion. I know this because i spent years studying rocks and had straight passed all of it. Hope this helps. ;)

4 0
3 years ago
Read 2 more answers
The sodium-potassium pump is involved in active transport that moves 3 sodium ions from the cell for every 2 potassium ions it m
Ugo [173]

Answer:

The sodium-potassium pump is an active transporter because it needs to move sodium and potassium ions against the concentration gradient.

Explanation:

You have to think of it as outside vs inside the cell.

Outside the cell, you have 5mM K and 150mM Na. Inside the cell, you have 100mM K and 10mM sodium. Without the transporter then the ions would go from greater concentration to lower concentration.  Energy keeps the ions going from the way they would naturally happen.

3 0
2 years ago
A population of mice has black or brown hair. The gene for black hair color (B) is dominant over brown (b). If 16% of the mice a
astraxan [27]
If B and b are the two alleles , B + b = 1 and B ^2 +2 Bb + b ^2 = 1.

If 16% of mice are homozygous black , B ^ 2 =0 .16, meaning B = 0 .4 and b = 1 - 0. 4 = 0 .6 .
Answer = Notice how you don't even need to know that 24% of the mice are heterozygous .
6 0
3 years ago
This chart Presents data on greenhouse omissions caused by human activity from 1990 to 2012 which questions will help clarify th
Dahasolnce [82]

Answer:

None of the questions asked can be answered completely from the graph provided 

Reason

1) Which source of electricity generation caused the most emissions?: The graph does provide the information of greenhouse gas emission from different sectors like electricity, transport, industry, agriculture, commercial and residential.  Electricity can be generated from several sources like hydrothermal, nuclear, etc. However, information of how these sources contributes towards greenhouse gas emission via electricity sector is not provided in graph

2) What types of industries are responsible for greenhouse gas emissions?: The graph does provides the information about total greenhouse gas emissions from industries. However, individual contribution from different types of industries cannot be answered.

3) Which natural sources of greenhouse gas emissions are shown here?: The graph provides information about greenhouse gases emission only due to human activity like electricity generation, agriculture, etc. and not from natural sources. 

4) Why is agriculture the largest source of greenhouse gas emissions?: The reason for largest emission of greenhouse gas due to agriculture cannot be answer from information provided.

5) What caused the dip in greenhouse gas emissions in transportation after 2007?: The reason for dip in greenhouse gas in transportation cannot be answer from information provided.

Read more on Brainly.com - brainly.com/question/10151442#readmore

Explanation:

6 0
3 years ago
1.
rewona [7]

The correct answers are:

1. Barrier island;

The barrier islands are island formed from the deposition of sediments, relatively close to the coastline. They are often in a linear shape, parallel to the shore, and being attractive tourist places.

2. Steep and rapidly exposed;

The cliffs are rocky structures that appear on the coastline itself. They are very steep, vertical, or even bent over the water bellow them, and they rise sharply above the water.

3. False;

The coastlines are changing constantly. The reason for that are the weathering and erosion processes, the deposition of sediments, as well as the rise or fall of the sea level.


5 0
3 years ago
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