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Genrish500 [490]
3 years ago
12

What is An estuary according to biomes

Biology
1 answer:
Luda [366]3 years ago
3 0

An estuary is an area where a freshwater river or stream meets the ocean. In estuaries, The salty ocean mixes with a fresh water river, resulting in brackish water. Brackish water is someone salty, but not as salty as the ocean. An estuary may also be called a bay, lagoon, sound, or slough.

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What is natural selection
Sati [7]
The process of nature where only the strongest will survive and live on 

Hope this helps
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3 years ago
1.<br> How much thermal energy is required to melt 4.525 mol of ice at 0°C to liquid water at 0°C?
svetoff [14.1K]
Formula to create heat of fusion (hof) i q=m•/\Hf
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3 years ago
When the quadriceps contact what also must happen at the same time?
Inessa [10]

Answer:

B. The hamstrings must relax.

Explanation:

When the quadriceps contact, the hamstrings must relax at the same time.

8 0
3 years ago
10 examples of biting and 10 example of piercing and chewing pests and how they affect crops​
VikaD [51]

Examples of biting and chewing pests are snails, slugs, caterpillar, Helicoverpa, diamond black moth, beetles , termites, leaf worms, grass hoppers etc.

Examples of piercing insects are  lace bugs, aphids, white flies, glassy winged sharp shooter, false chinch bugs, Bargrada bug, mealy bug, Eugenia psyllid,  Pittosporum psyllid,  Tipu psyllid etc.

<u>Explanation:</u>

Pests that affect crops have different feeding habits. Some pests belong to the type biting and chewing pests. These pests bite into the plant parts and chew them. This will leave circular holes in the leaves and semicircular holes in the leaf edges.

Piercing and sucking insects pierce into the plant parts and suck the sap. Removal of sap turns the plants yellow, and wilted. The growth might get stunted and in severe cases the plant may die off.

3 0
3 years ago
Biologic agents differ from other injurious agents in that they are able to replicate and can continue to produce their injuriou
Nostrana [21]

The question is incomplete as it does not have the options which are:

A. Gram-negative bacilli cannot cause harm to the cell; only Gram-positive bacilli can harm the cell.

B. Gram-negative bacilli release endotoxins that cause cell injury and increased capillary permeability.

C. Gram-negative bacilli excrete elaborate exotoxins that interfere with cellular production of ATP.

D. Gram-negative bacilli enter the cell and disrupt its ability to replicate.

Answer:

B. Gram-negative bacilli release endotoxins that cause cell injury and increased capillary permeability.

Explanation:

Gram-negative bacteria are pathogenic in nature due to the composition of their cell wall. Their cell wall contains an additional layer of a molecule called lipopolysaccharides or LPS.

The LPS layer is toxic in nature and is known as endotoxin and is involved in the pathogenicity of the bacteria as the toxin causes the injury to the Endothelial cell membrane of the host cell.  

When the bacteria cell is lysed and the LPS circulates in the blood, then LPS binds the receptors and acts on CD14. This attracts the neutrophils at the site and can cause vascular injury due to increased capillary permeability.

Thus, Option-B is the correct answer.

5 0
3 years ago
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