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Soloha48 [4]
3 years ago
7

An ecosystem consists of all of the populations of multiple species living in a particular place. an ecosystem consists of all o

f the populations of multiple species living in a particular place.
a. True
b. False
Biology
1 answer:
NemiM [27]3 years ago
5 0
False. An ecosystem consists of all the living organisms as well as the nonliving components such as air, water and soil. But technically it does contain all the populations of different species, the definition is just missing a component.
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A group of scientists are studying the effects of different fertilizers on the growth of pea plants. They began their study with
katrin [286]
A control group of the experiment is the one in which no treatment or intervention is given. So, in your case, the pea plants in which was not subjected any of the fertilizers, will serve as a control group. This is a negative control. A positive control group is the one in which an established treatment is given, which definitely leads to the production of the desired character. So, in your case, a very good well-known fertilizer which has a positive control on the growth of the pea plant, would serve as a positive control.
8 0
3 years ago
A rock sample has a mass of 16 grams and a volume of 8 cubic centimeters. When the rock is cut in half, what is the volume and d
spayn [35]

Answer:

Volume= 4 cm³

Density= 2 g/cm³

Explanation:

We have the following data:

volume= V= 8 cm³

mass= m= 16 g

The density is the mass per volume of a substance, so the density of the rock is:

density= d= 16 g/8 cm³= 2 g/cm³

When we cut the rock in half, we have a half volume and a half mass:

V= 8 cm³/2= 4 cm³

m= 16 g/2= 8 g

But the density is not altered because it is an intrisic property - it does not change with the amount of subtance. Thus, the density of a half rock is:

d = m/V= 8 g/4 cm³= 2 g/cm³

6 0
3 years ago
What is the function of a conversion factor?
Naily [24]

Answer:

A conversion factor is a numeric expression that enables feet to be changed to chains as an equal exchange. A conversion factor is a number used to change one set of units to another, by multiplying or dividing. When a conversion is necessary, the appropriate conversion factor to an equal value must be used.

— https://www.nwcg.gov/course/ffm/conversions/21-unit-conversion-and-conversion-factors#:~:text=A%20conversion%20factor%20is%20a,equal%20value%20must%20be%20used.

4 0
2 years ago
Which of these is a provisioning service— a benefit that is obtained directly from the environment?
dsp73

I believe it is either B or A, personally i'm leaning towards B, but at the same time, i don't think that we would be obtaining materials via pollination, so it then causes A to make more sense.

7 0
3 years ago
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What is one way that matter moves from<br> the geosphere to the hydrosphere?
Alisiya [41]

Answer:

Water in the geosphere can be discharged into surface water, becoming part of the hydrosphere once again, or it could be drawn up into the roots of a plant and become part of the biosphere. Water in the biosphere can be released into the atmosphere through transpiration in plants, or respiration in animals.

7 0
3 years ago
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