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ICE Princess25 [194]
2 years ago
8

Andrew wants to conduct an experiment to learn if he can use high temperatures to

Biology
2 answers:
lesya [120]2 years ago
7 0

Answer:

A

Explanation:

natali 33 [55]2 years ago
4 0
The answer is A i’m pretty sure
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A student is investigating cellular transport. She fills a beaker with 250 ml of water. She places 10 drops of red food coloring
Vera_Pavlovna [14]

Answer:

The correct answer is A The student is investigating the passive transport of diffusion.

Explanation:

Diffusion is a type of transport process which helps in the transport of small molecules and gases towards their concentration gradient that"s means from region of high concentration to the low concentration region untill equilibrium is reached.

       In this question the 10 drops are red coloured food particles that are placed into the beaker, diffuses to all the regions of the beaker untill the concentration of that red colored food particle become same in all the regions to which red colored food particle diffuse.

6 0
3 years ago
how factors such as blood pressure blood volume blood viscosity resistance disease and exercice affect blood flow
schepotkina [342]

Blood is essential for many organisms, such as humans and animals, for its important function of transporting substances (food, oxygen), vitamins, waste (carbon dioxide), hormones, etc. to all tissues and cells of the body.

1) Blood volume

If the blood volume increases ==> the blood flow increases.

2) Viscosity of blood

If we have an increase in blood viscosity ==> we have a decrease in blood flow

3) Peripheral Resistance

If there is an increase in peripheral resistance ==> the blood flow decreases

4) Diameter of blood vessels

If we have an increase in diameter of

blood vessels ==> decreased peripheral resistance ==> increased blood flow

5) Blood pressure

If the blood pressure increases ==> the blood flow increases.

6) In case of diseases

In the case of atherosclerosis or acute coronary syndrome ==> blood flow decreases.

7) Physical excercises:

During physical exercises ==> the heart rate increases ==> the blood flow increases.

3 0
3 years ago
All living things are eaither Eukarya, Bacteria, or Archaea. What are these broadest categories in the classification of life ca
bixtya [17]
 <span>hierarchical is the broadest categories in the classification of life is called.</span>
5 0
3 years ago
What biomes receive less then 100 Cm of rain each year? Check all that apply
jeyben [28]

<u>Answer</u>:- <em>Option 3 </em>(desert), <em>Option 4</em> (tundra) and <em>Option 5</em> (grassland).

<u>Explanation</u>:-

The amount of rainfall varies in different biomes:-

1. Tropical rain forests - The annual rainfall in these forests falls in the range of <em>125 to 660 cm</em> which varies according to the seasons.

2. Temperate rain forest - The annual rainfall in these forests can range from <em>200 cm to 350 cm</em> depending on the region where they are found. The annual rainfall is higher in warmer regions .

3. Desert - As the name suggests, the desert areas do not get enough rainfall. The annual rainfall in a desert is less than <em>25 cm</em>.

4. Tundra - It is a biome which is found in relatively cooler climates and the amount of rainfall is very less these regions. The annual rainfall in tundra biomes is less than <em>20 cm</em>.

5. Grassland - in these biomes, the rainfall is higher than the tundra and desert but is not as high as the rain forests and thus, grass is the dominant vegetation. The annual rainfall ranges from <em>60-90 cm</em>.

7 0
3 years ago
The human body contains roughly 100 trillion cells. approximately what percentage of those cells are independent microorganisms?
Lady_Fox [76]
I think the answer is 90%. According to the recent National institute of Health, Microbes in the human body estimates that 90% of the cells in human body are bacterial, fungal, or otherwise non-human. Despite the arguments that bacteria enjoys a commensal relationship with the humans hosts, only a fraction of the human microbia has been characterized. 
7 0
3 years ago
Read 2 more answers
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