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Pachacha [2.7K]
3 years ago
9

A solution that has the same number of molecules as the cell is a ___ solution

Biology
1 answer:
kvv77 [185]3 years ago
4 0

Answer:

Isotonic

Explanation:

A solution is isotonic to a cell if it has the same Concentration of dissolved particles as the cell. Water molecules move in and out of the cell at equal rate, so the cell size remains the same.

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In Drosophila, straight wings are dominant to curved wings (c), smooth eyes are dominant to sparkling eyes (spa), and tan body i
77julia77 [94]

Answer:

\frac{1}{8}

Explanation:

Straight wings are dominant over curved wings

Let Straight wings : H

curved wings : t

smooth eyes are dominant to sparkling eyes

let smooth eyes = H

spark ling eyes = t

tan body is dominant to ebony body color.

Again; Let tan body color be H

Let ebony color be t

If flies that are heterozygous for all three traits are crossed;

we have HtHtHt × HtHtHt

Then the selected trihybrid traits for the cross will be (HHH,HHt, HtH, Htt, tHH, tHt, ttH, ttt)

We will realize that from the punnet square in the diagram below, the proportion of the offspring would you expect to be heterozygous for all three traits (i.e HtHtHt) is asterisk in the punnet square and will be \frac{8}{64}

= \frac{1}{8}

7 0
3 years ago
One piece of evidence for the endosymbiotic theory is that the mitochondria and chloroplasts of eukaryotes _____.. . A.self-repl
Olenka [21]
<span> D.all of the above

</span>

Mitochondria and chloroplasts have striking similarities to bacteria cells. They have their own DNA, which is separate from the DNA found in the nucleus of the cell. And both organelles use their DNA to produce many proteins and enzymes required for their function. A double membrane surrounds both mitochondria and chloroplasts, further evidence that each was ingested by a primitive host. The two organelles also reproduce like bacteria, replicating their own DNA and directing their own division.


6 0
3 years ago
Which of the following statements best exemplifies the difference between a population and an individual?
Misha Larkins [42]

Answer:

d. All of the above exemplify the difference between a population and an individual.

Explanation:

A population is a group of individuals of the same species that live in a particular geographical area and are able to interbreed. A population is described with respect to several features such as death and birth rates, age structure, density, dispersion, change in the population size due to density-dependent and density-independent factors and the survivorship curve.

These features are not exhibited by a particular individual. Natural selection also works at populations. The evolutionary forces act upon populations to change their allele and genotype frequencies. Therefore, populations are the unit of evolution and change genetically over time, not the individuals. Population ecology studies the size of a populations and the trends and causes of changes in the populations over time.

5 0
3 years ago
If a plant takes in 6 CO2 molecules and 6 H2O molecules in order to build one C6H12O6 molecule, what element will the plant have
lora16 [44]

Answer:

Oxygen (O2)

Explanation:

This question is describing photosynthesis which uses carbon dioxide and water as reactants in the presence of sunlight to synthesize sugar (glucose) and oxygen. The general equation is as follows:

6CO2 + 6H2O ---> C6H12O6 + 6O2

According to this question, a plant takes in 6CO2 molecules and 6H2O molecules in order to build one C6H12O6 molecule. Using the balanced equation above, the extra element is OXYGEN, which still needs to be released as a gas for the equation to be balanced i.e 6O2 molecules

6 0
2 years ago
Which abiotic factor is most likely in a desert?
Aleks04 [339]
B. Wind.
A abiotic factor is non-living, making a, c and d wrong.
5 0
3 years ago
Read 2 more answers
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