All categories

4 years ago

Where is light penetration in a river or stream likely to be lowest?

Biology

2 answers:

Snowcat [4.5K]4 years ago

8 0

i beleive the answer is B.

Schach [20]4 years ago

8 0

Answer:

(B) the mouth

Explanation:

"Light penetration in a river or stream is likely to be lowest at the mouth of the river".

This is because in the beginning, the river is basically free of particulate matter and is also clear and so there is an ample amount of light penetration in the beginning.

At the middle portion, the suspended thing is high, but due to the speed of the water, the particles get cleared.

However, at the mouth of the river, there is a large concentration of particulate matter, and thus light penetration is the lowest.

Hence, option B is correct.

You might be interested in

If a bird eats a mouse that eats grass, the bird is a(n)

Studentka2010 [4]

Answer:

First level consumer

Explanation:

First level consumers eat plants eat producers that make their own food, therefore making the mouse a first level or primary consumer.

4 0

2 years ago

Switching from incandescent bulbs to compact fluorescents (cfl) provides a two-fold benefit during the summer. why?

Paul [167]

The Earth Policy Institute states that once the whole world shift entirely to compact fluorescent light bulbs, we would be able to shut down 270 coal-fired power plants. Also, the gasoline equivalent of the energy that would be saved by replacing a 100W incandescent bulb with a 24W CFL is enough to drive a Toyota Prius from New York to San Francisco. Therefore, the two-fold benefit of swapping your bulbs are 1) it can save a lot of energy, and 2) can save you a ton of money, as well.

3 0

4 years ago

Select 3 true statements about Analogous Structures

Debora [2.8K]

Answer:

A. They have the same function

B. They have evolved independently

C. They indicate an evolutionary relationship

Explanation:

Analogous structures are structures with a different embryonic but have evolved to perform similar function.
<em><u>Analogous structures are a result of convergent evolution which is the independent evolution of similar features in species of different lineages or different embryonic origin.</u></em>
Examples of analogous structures include; wings in flying animals like bats, birds, and insects, and fins in animals like penguins and fish.

8 0

3 years ago

Early amino acids may have originated

tatyana61 [14]

I think the answer is A

6 0

3 years ago

Cross a grasshopper with red stripes and a grasshopper with red and yellow stripes. What is the phenotypic ratio of their offspr

Bezzdna [24]

Answer: 75% will be red while 25% will be a mix

Explanation:

With a punnet square you get RR, Rr, YR, and Yr. RR, Rr, and YR are all dominant while Yr has the recessive red gene

7 0

3 years ago