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Thepotemich [5.8K]
2 years ago
8

In a soft-bottomed intertidal community, oxygen would be most plentiful for meiofauna in which type of bottom?

Biology
1 answer:
Sonbull [250]2 years ago
8 0

Answer:

The options are:

A. Gravel

B. Sand

C. Silt

D. Clay

E. Mud

The answer is A. Gravel

Explanation:

Meiofauna are small benthic invertebrates which live in aquatic habitat. They are suited for both marine and fresh water environments.

Gravel aren’t tightly packed together in large quantities when compared with the other options such as sand, silt, clay, mud. This makes it possible for more aeration and the presence of more oxygen at the soft-bottomed intertidal community.

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Select ALL the correct answers.A forest was cleared to build a road. Which two would be the most likely effects on the ecosystem
Kryger [21]

Answer:

Some species will develop adaptations to survive in the deforested land.

Some populations will migrate out of the deforested area.

Explanation:

The deforested land will be able to support large trees eventually in the future, and animals cannot instantly adapt to anything.

Therefore, the most logical answers are populations will migrate to forest lands and species will eventually develop adaptations to help them in the newly deforested land.

I hope this helps! :)

4 0
2 years ago
New Zealand has a population of 4,326,380 and has an area of 103,736 mi2028-02-04-03-00_files/i0370000.jpg while Australia has a
lesya [120]

Even though New Zealand has a smaller population than Australia, it has a greater population density because it covers a much smaller area. Australia’s population is approximately five times larger than New Zealand’s while the area Australia covers is approximately 30 times larger than the area New Zealand covers.

7 0
2 years ago
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Which of the following organelles is involved in the modification and routing of molecules to the exterior of the cell or to var
DerKrebs [107]

Answer:

The correct answer is e. Golgi apparatus

Explanation:

Golgi apparatus are also known as Golgi bodies and it bound by only a single membrane. It is present near the endoplasmic reticulum in the cell. Golgi apparatus is composed of 5-8 membrane-bound sac-like structures called cisternae.  

The Golgi apparatus plays important role in the modification of molecules like proteins and lipids. The unprocessed proteins that are released from the endoplasmic reticulum enter the Golgi apparatus and in the Golgi apparatus its modification like glycosylation and phosphorylation occurs.

Then these processed proteins are released outside from the Golgi in vesicle forms which have a signal molecule that guides it to various locations in the cell or towards the plasma membrane from where it can move out of the cell.

Therefore the correct answer is e. Golgi apparatus.

6 0
2 years ago
How much more [H+] does lemon juice (pH 2) have compared with pure water (pH 7)? Remember that each pH unit represents a 10 fold
zhenek [66]

Answer:

10^5 \\or\\100,000

Explanation:

As we know that the formula for pH is

pH = -[log H+]\\

It is also given in the question that one pH unit represents the 10 fold change in the concentration of hydrogen ion.

Now for lemon juice whose pH is 2, hydrogen ion concentration is equal to

10^-2\\= \frac{1}{100}

And for pure water whose pH is 7, hydrogen ion concentration is equal to

10^ -7\\= \frac{1}{10000000}

Thus, the H+ ion concentration in lemon juice is 10^5 times greater than the pure water.

8 0
2 years ago
According to the theory proposed by Harry Hess, what causes continents to move? continental drift magnetic polarity seafloor spr
olasank [31]

According to the theory proposed by Harry Hess, what causes continents to move?

The correct answer is : seafloor spreading.

Earlier, in 1912 Alfred Wegener produced evidence that the continents are in motion but this idea was shelved as he could not explain what forces the continents to move. So, almost 50 years later Harry Hess confirmed Wegener's ideas by using the evidence of seafloor spreading to explain what moved continents.

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2 years ago
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