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sveta [45]
2 years ago
8

When a fish swims from salt water into fresh water, its cells react by:

Biology
2 answers:
Sever21 [200]2 years ago
6 0

When a fish swims from salt water into fresh water its cells react by losing water and shrinking.​ The correct option is D.

<h3>What is fresh water?</h3>

Glaciers, lakes, reservoirs, ponds, rivers, streams, wetlands, and even groundwater contain fresh water.

These freshwater habitats cover less than 1% of the world's total surface area but are home to 10% of all known animals and up to 40% of all known fish species.

When a fish swims from salt water into fresh water its cells react by losing water and shrinking due to osmosis.​

Thus, the correct option is D.

For more details regarding fresh water, visit:

brainly.com/question/4381433

#SPJ1

emmasim [6.3K]2 years ago
6 0

A fish swims from salt water into fresh water, its cells react by gaining water and swelling. Thus, option "A" is correct.

<h3>What is osmosis?</h3>

Osmosis is the movement of water through a semipermeable membrane from an area of ​​low solute concentration to one of higher solute concentration to establish an equilibrium.

For example, The solutes are solids that dissolve in water and form ions, such as salts (NaCl) and sugars, these solutes are also found the cell’s cytoplasm.

Thus, option "A" is correct.

To learn more about Osmosis  click here:

brainly.com/question/1799974

#SPJ1

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Which process can be described as two cell divisions, genetic variation, and haploid cells?
adelina 88 [10]
This process is known as meiosis 
3 0
3 years ago
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In 3-5 sentences write a description of how the 4 terms, DNA, chromosomes, genes and traits, are related and/or work together to
wel

Answer:

Please find the explanation below

Explanation:

Deoxyribosenucleic acid, commonly called DNA is the stored form of genetic material in living cells. It contains the information needed by an organism to survive. A segment of the DNA that encodes the necessary information needed to produce a particular protein that determines a trait is called GENE.

The DNA consists of long polynucleotide chains, hence, due to Its length, it cannot git into the cell. The cell then devises a means by wrapping the long strands of DNA around certain proteins called HISTONES. This initially forms a NUCLEOSOME structure, then continuous wrapping around histones and condensation forms the visible CHROMOSOME structure.

Now, the CHROMOSOME contains the DNA molecule, which contains protein-coding segments called GENES. The information contained on the gene is used to produce a protein that is responsible for a particular TRAIT in the organism.

5 0
3 years ago
What was a mining process that removed large quantities of earth.
jasenka [17]

Answer:

Open-cast mining

Explanation:

The aftermath of open cast mining are pits (called quarries) on the surface of the earth where the surface soil has been removed/ displaced to access the mineral deposits that are just close or at the surface of the earth. This type of mining results in environmental degradation because they disturb the biodiversity of the ecosystem in which the mining is taking place. Rehabilitation of the area is required after the mining has been exhausted to restore the initial environment.

6 0
3 years ago
In a particular species of frogs, black spots are a dominant trait and their absence is a recessive trait. In a population of fr
swat32

The correct answer is optionD 134/200.

The frequency of the dominant allele can be calculated by the summation of the frequency of the homozygous individual frequency that has  dominant allele  and half of the heterozygous individuals, as half of the heterozygotes have dominant allele.

The frequency is no of individual of desired trait divided by total number of individual.

The calculation is shown below:frequency of dominant allele=frequency of dominant individual+\frac{1}{2} frequency of heterozygotes\\frequency of dominant allele=\frac{50}{100} +\frac{1}{2} (\frac{34}{100} )\\frequency of dominant allele=\frac{50}{100} +\frac{34}{200} \\frequency of dominant allele=\frac{2(50)+34}{200}\\ frequency of dominant allele=\frac{134}{200}

8 0
3 years ago
Read 2 more answers
An atom has an atomic number 17 and atomic mass number 35. How many neutrons are present in its nucleus?
Pie

Answer:

B. 18

Explanation:

An atom, which is the smallest indivisible particle of matter, further contains certain particles called SUB-ATOMIC PARTICLES namely: proton, neutron and electron. In a neutral/uncharged atom, the number of proton is equal to the number of electrons. The number of protons in an atom represent its ATOMIC NUMBER.

However, the sum of the proton number and neutron number gives the MASS NUMBER i.e. mass no. = proton no. + electron no.

Hence, according to this question which states that an atom has an atomic number of 17 and a mass number of 35. The neutron no. can be calculated as follows:

Neutron no. = mass no. - proton no.

Neutron no. = 35 - 17

Neutron no. = 18

8 0
3 years ago
Read 2 more answers
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