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Maksim231197 [3]
3 years ago
7

When a single creature, or a whole species, changes in order to better fit their environment it is called

Biology
2 answers:
PolarNik [594]3 years ago
6 0
I believe it is adaptation

Masja [62]3 years ago
3 0

Answer:

    The right answer to this question is: Adaptation

Explanation:

    Adaptation is based on Darwin's theory, and it's not that simple. The adaptation of a species to fit an environment is almost always through random mutation, and these mutations can or cannot help the organism, it is completely random, but when it is good for them, this mutation stays on this population until it's not needed anymore.

      Darwin's theory is called Natural Selection, but nowadays, this theory has changed a lot with time, and genetics can now contribute to the explanation.

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PLEASE HELP!!!!!
Irina-Kira [14]

Answer:

A. meiosis

Explanation:

  • Meiosis is an asexual reproduction conducted by gametes to form four new, haploid cells.
  • It is important to ensure When fertilization occured, it form a zygote with diploid cells.
5 0
3 years ago
Read 2 more answers
A forest has two groups of plants that appear to be very similar both phenotypically and genotypically. The major difference is
Gennadij [26K]
The basics would be that you'd need to find out if they could exchange genetic information. If not, they couldn't be considered part of one species. Set-up 2 artificial environments so both groups would produce pollen at the same time. Fertilise both plants with the other's pollen. Then fertilise the plants with pollen from their own group. 
Count the number of offspring each plant produces. 
If the plants which were fertilised by the opposite group produce offspring, they are of the same species. You can then take this further if they are of the same species by analysing if there is any difference between the number (and health) of offspring produced by the crossed progeny and by the pure progeny. You'd have to take into account that some of them would want to grow at different times, so a study of the progeny from their first sprout until death (whilst emulating the seasons in your ideal controlled environment). Their success could then be compared to that of the pure-bred individuals. 
Make sure to repeat this a few times, or have a number of plants to make sure your results are accurate. 
Or if you couldn't do the controlled environment thing, just keep some pollen one year and use it to fertilise the other group. 
I'd also put a hypothesis in there somewhere too. 
The independent variable would be the number of plants pollinated. The dependant variable would be the number of progeny (offspring) produced. 
5 0
3 years ago
What are the mechanisms by which aneuploidy and polyploidy are caused? What are the mechanisms by which aneuploidy and polyploid
sleet_krkn [62]

The correct answer is:

The principal cause of aneuploidy is chromosome nondisjunction during mitosis or meiosis. Polyploidy in nature can result either from the duplication of euploid chromosome sets from a single species or from the combining of chromosome sets from different species.  

Aneuploidy is a phenomenon when there is the presence of an abnormal number of chromosomes in a cell (an extra or missing chromosome). Usually it appears as a result of improper cell division (chromosomes don’t separate) and it can cause many genetic disorders.

Polyploidy refers to a state when there are more than two sets of chromosomes (one from mother one from father). Triploid (three sets of chromosomes) and tetraploid (four sets of chromosomes) chromosomes are examples of polyploidy. This phenomenon is most common in plants.

5 0
3 years ago
Why have only a few people ever seen a total solar eclipse?
Hunter-Best [27]

As the experts says, solar eclipse do not happen always like lunar eclipses do that is visible for a long periods of time and are observable. Unlike solar eclipse, it happens hundreds and thousands of years to see it. Few people can only see solar eclipse, and those only those people who are in the small region where the Moon's umbra strike's Earth can witness one.

7 0
3 years ago
Explain how in an electrical system like wires going from a plant to a house, there is less electrical energy at the end of the
DiKsa [7]

Answer:

According to the law of conservation of energy, energy cannot be created or destroyed, although it can be changed from one form to another. KE + PE = constant. A simple example involves a stationary car at the top of a hill.

The law of conservation of energy states that energy can neither be created nor destroyed - only converted from one form of energy to another. This means that a system always has the same amount of energy, unless it's added from the outside.  The only way to use energy is to transform energy from one form to another.

Similarly, the law of conservation of energy states that the amount of energy is neither created nor destroyed. ... For example, when you roll a toy car down a ramp and it hits a wall, the energy is transferred from kinetic energy to potential energy.

Explanation:

7 0
2 years ago
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