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Grace [21]
3 years ago
7

the solution inside a plant cell is approximately a 1% saline solution. in a 25% nacl solution the cytoplasm of a plant cell wil

l
Biology
2 answers:
mrs_skeptik [129]3 years ago
3 0
<span>The cell has 1% concentration of the salt. The external environment is highly concentrated with 25% saline solution. This will lead to release of water outside the cell, by passive diffusion from a region of high conentration of solvent to lower concentration. Thus, the cell will shrink.</span>
Readme [11.4K]3 years ago
3 0

The cell will shrink and draw away from the cell wall.

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A type of speciation called ____________ occurs when a single species quickly gives rise to many new species as they adapt to va
Nikitich [7]

Answer:

              Allopatric speciation occur due to various environmental factors with in the environment.

Explanation:

                      Speciation occur when two population become so genetically different and the can not interbred to produce fertile off spring. The allopatric speciation occur when population become sepret and diverge over time due to natural selection,genetic drift,and mutation.Genetic drift is the sudden loss of gene from a population which cause the population evolvation. Mutation is also change in the genetic makeup of an individual.Natural selection is the phenomena selected by nature and natural forces are involve to select the trait in a living organism.

 

4 0
3 years ago
1. You are studying the nesting behavior of an unusual species of bird in the Solomon Islands. You discover that baby birds exis
Dafna1 [17]

Answer:

0.78

Explanation:

Fitness measures the probability of survival and reproduction of a particular phenotype or genotype in a population.

Relative fitness measures how fit one genotype or phenotype is with respect to the most fit genotype or phenotype in a popualtion. It is calculated as = survival rate of that group / maximum survival rate observed in that population

Here,

Total number of yellow birds = 263

Yellows birds that survived = 150

Survival rate of yellow birds = 150/263 = 0.57

Total number of grey birds = 413

Grey birds that survived = 303

Survival rate of grey birds = 303/413 = 0.73

Grey birds have more survival rate than yellow birds so their survival rate is maximum in the population.

Fitness of yellow phenotype relative to grey phenotype = survival rate of yellow birds / survival rate of grey birds

= 0.57 / 0.73

= 0.78

Hence, fitness of the yellow phenotype relative to the grey one is 0.78.

5 0
3 years ago
I've been struggling with this for a few hours. If someone could provide an answer I could greatly appreciate it!
natka813 [3]

Answer:

See explain

Explanation:

I gotchu. First, let's just remove A from the beaker and feed it to a rat. If he lives, the poison is A, if not it's still in one of the 3. Now, remove B and feed to a rat. If he dies, it's not B or A . . . so on until you have your answer.

4 0
2 years ago
Read 2 more answers
How long until Chernobyl will be safe again?
Annette [7]
It will never since how their high radiation but it would take about a 100 years by how it’s not life able anymore and giving it time for radiation to break down which is about 20,000 years.
3 0
2 years ago
How does photosynthesis affect all living things?
nasty-shy [4]

Answer:

Photosynthesis is important to living organisms because it is the number one source of oxygen in the atmosphere. ... Green plants and trees use photosynthesis to make food from sunlight, carbon dioxide and water in the atmosphere: It is their primary source of energy.

Explanation:

3 0
3 years ago
Read 2 more answers
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