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Vesnalui [34]
3 years ago
6

Even though scorpions are related to spiders, there are many differences between the two

Biology
1 answer:
Dmitrij [34]3 years ago
7 0

Answer:

Cell differentiation

Explanation:

Cell differentiation is common with multicellular organisms. It is the process by which a cell changes from one cell form to another. Cell differentiation makes the change from a zygote to a complex system with different parts.Cells which have been differentiated also becomes specialized. Complex multicellular animals and plants would not be in existence without specialization. This is because cells have specialized functions and each cell is very important to the survival of the organism.

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Give examples of types of pollution and the effects on water quality (examples: sedimentation, stormwater runoff, naturally and
jeka94

Answer:

Sewage, oil, pesticides and fertilizers affect water quality.

Explanation:

There are three types of pollution i. e. air pollution, soil pollution and water pollution. Smoke and smog are present in the air is the example of air pollution, waste product, using of pesticide and industrial dumping are the example of soil pollution and chemicals in water due to runoff of fertilizer, sewage and oil are the main agents of water pollution. These three types of pollution adversely affected the water quality. Water quality will be affected when the fertilizer or pesticides runoff from land to water bodies. Sewage and oil also lowers the quality of water.

8 0
3 years ago
A number of marine reptiles and birds have salt glands, which have a remarkable ability to concentrate salt solutions for excret
Lemur [1.5K]

Answer:

A)100mL  B)50mL  C)The second option  D)Hypoosmotic Environment

Explanation:

The average Na concentration in the seas and oceans of the world is around 3,5% which mean that in 100 ml of sea water, there is around 3,5 grams of Na.

The weight of one mol of NaCl is 58,44 grams. For 3,5 grams of NaCl, we get 3,5/58,44 = 0,060 mol of NaCl which is 0,060x1000 = 60 mmol/100ml. According to this and the information given in the question about the secretion of the salt glands', if the average sodium concentration is 600mmol/L, we have 60*10 = 600mmol/L so it would take 100 mililiters of water to excrete.

If the average Na concentration of the salt gland's secretion were 300 mmol/L, only 50 mililiters of water would be needed to excrete the same sodium load.

The second option of secretion is hyperosmotic to seawater because the concentration is higher.

Osmoregulation is the process of balancing the amount of water and salt between the body of the organism and its surrounding environment. For salt glands to be advantageous for osmoregulation, they need to be in a hypoosmotic environment.

I hope this answer helps.

3 0
3 years ago
About how wide are the growth rings for the Rainy years.
STatiana [176]

Answer:

About 0.6 cm 5.

Explanation:

5 0
3 years ago
Hydrocarbons...
nata0808 [166]

Answer:

Explanation:

All hydrocarbons are apolar

They contain covalent bond(s)

Hydrocarbons contain only carbon and hydrogen atoms

Hyrdrocarbons held by london forces

True answer is d

6 0
3 years ago
An example of a multicellular organism
tiny-mole [99]

Hi Hannah


- rabbit

- pine tree

- bread mold


I hope this answer help:)

7 0
3 years ago
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