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Ksenya-84 [330]
3 years ago
7

What is an ecosystem?

Biology
2 answers:
andrey2020 [161]3 years ago
7 0
The answer is D....


...
forsale [732]3 years ago
6 0

Answer:

d

Explanation:

All the other ones are talking about one species or one plant.... Whereas D, includes all of them.

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Blood contains nacl, protein, and cells. the nacl is in a(n) __________, the protein is in a(n) __________, and the cells are in
andreev551 [17]
The answers are solution, colloid, and suspension respectively. 

NaCl or salt is dissolved in the blood. So this makes blood and salts a solution. You won't be able to discern the NaCl in a solution of blood and NaCl.

Proteins in the plasma make blood a colloid. Protein particles are bigger than particles in a solution but are smaller than particles in a suspension. 

Lastly, blood cells and blood make up a suspension. You would notice this characteristic in blood because red blood cells settle. 

You can observe this when your blood is drawn. When it is placed in a test tube and left alone or placed in a centrifuge. The components separate into liquid on top, where you cannot see particles like salt; plasma in the middle, which has pale yellow color and also contains proteins; and the red blood cells at the bottom that settled. 

6 0
3 years ago
Select all that apply. Which of the following products are derived from invertebrates? food shell jewelry silk cotton
asambeis [7]
The products that are derived from invertebrates are the following:
1. food - crabs, lobsters, oysters, octopuses: all of these are invertebrates (meaning they have no spine) and are used as food
2. shell - seashells are invertebrates and their shells are used for various purposes
3. jewelry - shells are used as jewelry, as well as pearls coming from seashells
4. silk - silk comes from silkworms, which are invertebrates
I just wouldn't pick cotton, because you get cotton from a plant.
5 0
3 years ago
What are the indicators of land pollution?
lesantik [10]

Answer:

<em><u>They include temperature, color, odor, aggregate stability, available water capacity, bulk density, infiltration rate, slaking, crusts, structure, and macro-pores. Only, the most distinct and reliable physical pollution indicators with the actual wide practice were designated.</u></em>

7 0
2 years ago
The traits studied in the experiments involving the crossing of pea plants are seed shape and seed - Brainly.com
luda_lava [24]

Answer: B

Explanation:

3 0
3 years ago
What is a stimulus? What is homeostasis? How are irritability and homeostasis related? Describe an example of homeostasis, respo
lozanna [386]

Answer:

All is in order.......

stimulus is a thing or event that evokes a specific functional reaction in an organ or tissue.

homeostasis is the tendency toward a relatively stable equilibrium between interdependent elements, especially as maintained by physiological processes.

Irritability is that characteristic of living organisms in being aware of, and being able to respond to, a stimulus which tends to disturb the steady state or homeostasis which all organisms prefer for maintaining life.

Humans' internal body temperature is a great example of homeostasis. When someone is healthy, their body maintains a temperature close to 98.6 degrees Fahrenheit (37 degrees Celsius). Being warm-blooded creatures, humans can increase or decrease temperature internally to keep it at a desirable level.

plz give brainlist

hope this helped

8 0
4 years ago
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