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3 years ago

Grasslands are _______.

1 answer:

7 0

<span>The grasslands typically lie in the middle of large lanmasses, or the interior of continents, where rivers are most likely to flow far away from seawater sources. Here the ever present value of water can be seen, as it supplies the source of life to all the plants and animals in the ecosystem in a lush and relatively cushy environment when compared to the biomes like the desert or savannah.</span>

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Someone plss help plss helppp plllsss<br><br> Will mark brainliest

Sedaia [141]

Answer and Explanation:

An acid has a pH that is less than 7. A base has a pH that is greater than 7. Something that has a pH of 7 is neutral, but since it doesn't seem that the question is asking about neutral, you can ignore that for this problem.

Situation 1: Base

Situation 2: Acid

Situation 3: Acid

Situation 4: Base

Situation 5: Acid

Situation 6: Base

A. Water directly out of the tap has a pH of 7.2. When you add carbon dioxide (blow into the water), you get a pH of 5.1. This means that the addition of carbon dioxide makes water more acidic.

B. The most basic solution will have the highest pH. This means that it will be water with bleach added to it.

C. The most acidic solution will have the lowest pH. This means that it will be water with instant coffee.

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3 years ago

There are 100 cats in a population that follows hardy-weinberg conditions. 4 cats display a recessive white coat color. how many

mr Goodwill [35]

We know that Hardy-Weinberg conditions include the following equations:

$p^{2}+2pq+ q^{2}=1$

where $p+q=1$

And where p = dominant, and q = recessive; this means that $p^{2}$ is equal to the homozygous dominant, $2pq$ is the heterozygous, and $q^{2}$ is the homozygous recessive .

So we have 100 total cats, with 4 having the recessive white coat color. That means we have a ratio of $\frac{4}{100}$ or 0.04. Let that equal our $q^{2}$ value.

So when we solve for q, we get:

$q^{2}=0.04$

$q=\sqrt{0.04} =0.2$

Now that we have our q value, we can use the other equation to find p:

$p+q=1$

$p+0.2=1$

$p=0.8$

So then we can solve for our heterozygous population:

$2pq=2(0.8)(0.2)=0.32$

This is the ratio of the population. So we then multiply this number by 100 to get the number of cats that are heterozygous:

$0.32*100=32cats$

So now we know that there are 32 heterozygous cats in the population.

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3 years ago

Which best describes the movement through the nephron

IRISSAK [1]

Nephron helps the urinary system to rid off metabolic waste in our system.

3 0

3 years ago

Read 2 more answers

If a muscle contracts isometrically for a long period of time, an EMG (which records the electrical activity in the muscle) reco

oksian1 [2.3K]

Answer:

During the course of a continuous isometric contraction of given strength, the electrical activity progressively increases. This is due to recruitment of motor units taking place to compensate the decrease in force of contraction occurring in the fatigued muscle fibres.

Explanation:

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3 years ago

The circulatory system interacts with other body systems. How does the circulatory system help the excretory states and the dige

tatiyna

The circulatory system helps the excretory and digestive system do their jobs because the waste from the blood in the circulatory system is eliminated from the body through the excretory system, and the nutrients absorbed by the digestive system are transported through the blood.

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3 years ago