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Mamont248 [21]
3 years ago
13

Does salt form a homogeneous mixture when mixed with water

Biology
2 answers:
Licemer1 [7]3 years ago
6 0
Yes because a homogeneous mixture is a mixture that has the same uniform appearance and composition throughout while with heterogeneous you can see the different parts of the mixture and pick them out
igomit [66]3 years ago
3 0

Answer:

Yes

Explanation:

I got this right on the test

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3.
AveGali [126]

Answer:

a. Approximately 1,003 weasels, 3,345 mice and 16,729 wheat plants per one hawk are in the ecosystem

Explanation:

The percentage of the weasel population eaten by a hawk = 30%

The percentage of the mouse population eaten by a weasel = 30%

The percentage of the wheat plants population eaten by a mice = 20%

a. One hawk needs 330 kJ of energy per day, which gives 330 kJ × 365 = 120,450 kJ per year

Let 'x' represent the number of weasels to support one hawk, we have;

0.3 × x = 120,450 kJ/year/(400 kJ) = 301.125

x = 301.125/0.3 = 1,003.75

The number of weasels required to support one hawk per year ≈ 1,003 weasels

The total weasels ≈ 1,003

ii) The number of mice needed, y = x/0.3 = 1,003.75/0.3 = 3,345.8\overline 3

The total mice, y ≈ 3,345 mice

iii) The number of wheat flower needed, z = y/0.2

∴ The number of wheat flower needed, z = 3,345.8\overline 3/0.2 ≈ 16,729.1\overline 6

The total wheat plants ≈ 16,729.

7 0
3 years ago
Because they lack well-defined and complex organ systems, we hypothesize that _____ diverged from all other animals early in the
astraxan [27]

Answer:

Poriferans.

Explanation:

The evolution of the organisms has been occur from the simple organisms and leads to the evolution of the more complex organisms. This complexity arises due to the changing environment of the organisms.

The protozoans are the simplest organisms and all the other animal lineage has been derived from the porifera. The porifera are the cellular organisms that  do not have tissue level of organization and simple physiological system. Later, diverse and complex organisms arise from the porifera.

Thus, the correct answer is option (1).

4 0
3 years ago
What are the reactants of water(it says there is two reactants just don’t know what they are
Morgarella [4.7K]
I think one is carbon dioxide not sure what the other is
7 0
3 years ago
A football player can hear his coach’s voice above the noise of the crowd and can sense an opponent about to run him down. These
faust18 [17]

Answer:

Thalamus

Explanation:

4 0
2 years ago
I. An atom is the smallest unit of an element and a molecule is made up of two or more atoms chemically bonded together.
kenny6666 [7]

Answer:

I think it's the first and the second ... but I'm not sure

5 0
3 years ago
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