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Vitek1552 [10]
3 years ago
14

What two pieces of information are needed to determine ocean depth through echo-sounding?

Biology
1 answer:
Ber [7]3 years ago
5 0
The echo sounder is an instrument that measures depth based on the principle of echo-wave reflections transmitted through a wave generatpr in which the wave-time return is being noted. The two pieces of information needed to determine ocean depth are: velocity of the wave  and the return time of the wave.
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Which of the following statements is true?
aksik [14]
The statement water is easily polluted..... is true. Water is pretty much the world's best solvent. So even toxic substances are easily dissolved in it and when that happens they pollute the water.
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3 years ago
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Which of these biomes tends to receive the most rainfall?
GaryK [48]

Answer:

O B. Rain forest

Explanation:

5 0
3 years ago
The law of_____
Marta_Voda [28]

Answer:

The correct answer is - segregation.

Explanation:

The law of segregation states that out of two factors or alleles of a gene located in an organism, only one allele or factor is distributed to each sperm cell or egg cell (gamete) randomly, So, the segregation of the alleles are random and only one allele is distributed to each gamete according to this law.

The law of segregation helps in making a different combination of alleles in a particular species or population and leads to variation in genetics. It makes sure that traits distribute to each generation randomly.

5 0
3 years ago
Joyce is planting tulips in her garden, and she has 5 red bulbs and 5 white bulbs to plant in one row. What is the probability t
Stolb23 [73]

Answer:

\frac{1}{126} or 0.0079.

Explanation:

Joyce is planting tulips in her garden.

Number of red (R) bulbs = 5

Number of white (W) bulbs = 5

Total number of ways to plant 10 bulbs in one row is

\text{Total ways}=\frac{10!}{5!5!}

\text{Total ways}=\frac{10\times 9\times 8\times 7\times 6\times 5!}{5\times 4\times 3\times 2\times 1\times 5!}

Cancel out common factors.

\text{Total ways}=252

It is given that she randomly plants the bulbs so that all 5 red bulbs are next to each other and all 5 white bulbs are next to each other.

Required outcomes are

RRRRRWWWWW and WWWWWRRRRR

\text{Required outcomes}=2

Formula for probability:

Probability=\frac{\text{Required outcomes}}{\text{Total ways}}

Probability=\frac{2}{252}

Probability=\frac{1}{126}

Probability\approx 0.0079

Therefore the required probability is \frac{1}{126} or 0.0079.

5 0
3 years ago
1. What type of succession takes place that increases the biological diversity of an ecosystem? For example, if we started with
professor190 [17]

There are two types of succession that lead to the increasment of the ecosystem:

1. Primary succession is the change in the structure of an ecosystem represented with the increase of the ecological community on an area that has not been previously occupied by an ecological community such as area after the lava flow or glacial lake. The first organisms of primary succession are pioneer plants usually, lichens and mosses.

2. Secondary succession includes the step of removal of pre-existing community and after that, colonization of the new one.  


6 0
3 years ago
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