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sineoko [7]
3 years ago
5

How do parasitic flatworms evade their host's immune system?

Biology
1 answer:
Vinvika [58]3 years ago
4 0
<span>They have a special skin that camouflages them and the immune system will see them as its own self instead of an invader. The skin also protects them from digestive enzymes. </span><span />
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A scientific theory states that the universe is expanding. which of these statements is correct about this theory?
nydimaria [60]
It is strengthened by data which is always contradictory.
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3 years ago
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The three bacterial shapes in Model 1 are referred to as coccus (sphere), spirillum, and bacillus (rod). Label the diagrams in M
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<span>Bacteria keep their shape by having a rigid cell wall, but they can be shaped and appear differently. There are three main shapes of bacteria: 1.) The Coccus bacteria is in a sphere shape. 2.) Spirillum bacteria is in a spiral shape. 3.) The Bacillus bacteria comes in a rod shape. Each of these bacteria can come in pairs, clusters or chains.</span>
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3 years ago
When an ionic compound such as sodium chloride (NaCl) is placed in water, the component atoms of the NaCl crystal dissociate int
PtichkaEL [24]

Answer:

The correct answer is C) 1 L of 1.0 M NaCl

Explanation:

NaCl is a ionic compound so it dissociates in water into Na⁺ and Cl⁻ ions. Glucose is a covalent solute so it does not dissociates into ions. So, when we dissolve NaCl we have twice the amount of particles in solution in comparison with glucose. According to this:

A) and B) are solutions with the same concentration (0.5 M) but NaCl solution will have more solute particles than glucose.

C) and D) are solutions with more solute amount because they are more concentrated (1 M), but NaCl solution will have more solute particles than glucose solution ( 1 mol of Na⁺ ions + 1 mol of Cl⁻ ions).

The solution with the greatest solute particle number is C).

5 0
2 years ago
Name the blood vessels that carry blood from the upper and lower part of the body
Nina [5.8K]
Pulmonary artery.

-Tasha
4 0
3 years ago
1.Every time we eat, which body system is in control of digesting the food that we consume?
zysi [14]

Answer:

1. A. digestive system

B. excretory system

2. A. nervous system

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1. the digestive system helps digest food and the excretory system helps get rid of waste.

2. asthma is considered a respiratory disease.

hope it helped. :) please mark as brainliest if it did. thanks in advance. :)

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2 years ago
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