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lutik1710 [3]
3 years ago
13

Give an example of a nontestable question:

Biology
1 answer:
nekit [7.7K]3 years ago
8 0

Answer:

What is the best brand of soda?

Explanation:

Everyone has their own opinion on best brands of soda.

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One danger of excessive nitrogen levels in water is BLANK.
taurus [48]

Answer:

light

Explanation:

excessive nitrogen can harm water bodies excessive nitrogen can cause overstimulation of growth of aquatic plants and algae excessive growth of the organisms intern can clogged water intakes used to solve oxygen as they decompose and block light to deeper waters

6 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
4 years ago
Three benefits attributed to all psychotherapies are:
dimaraw [331]

Answer:

hope for demoralized people, new perspective, and a healthy relations

3 0
3 years ago
____ is a substance released by the pituitary gland late in pregnancy and causes the uterine contractions late in the birth proc
zhenek [66]
It is called oxytocin-hope this helps.
5 0
3 years ago
Read 2 more answers
Thus is the question I'm NOT Sure of the awnser any help?
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A. Cohesion is a property of water that describes the attraction due to hydrogen bonding between water molecules.
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4 years ago
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