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Kisachek [45]
3 years ago
12

Which type of selection tends to increase genetic variation? a. Disruptive selection b. Stabilizing selection c. Directional sel

ection
Biology
2 answers:
pashok25 [27]3 years ago
8 0

Answer:

a. Disruptive selection

Explanation:

Imagine there is a population of  red-colored, white colored,  and green colored wings butterflies on  a red- petals, green leaves hibiscus flower plants.

Generally the  red-colored wings will be camouflaged by the red-colored  hibiscus flower petals, while the green color of the leaves will masked the green colored butterflies.Therefore the white-colored butterflies will be exposed to predators and therefore selected against by environmental pressure leading to disruptive selection.

<u>Consequently in the  butterfly population,  there is  increased genetic variation in  red and green butterflies population ,  with consequent population diverse.</u>

<u />

Therefore when an extreme value for a trait(red and green wings colors) is  favoured for intermediate trait (white).The term that describes this is called Disruptive selection. One of the naturally selected  wings may  migrate from the population leading to speciation.

OleMash [197]3 years ago
7 0

Answer: A- Disruptive selection

Explanation: Disruptive selection increases genetic variation as the population begins to be more different when selection existing in nature chooses multiple phenotypes reaching the highest degree which each have particular benefits. However, they tend to make single-celled life form that has interposed characteristics to produce smaller offspring while allowing the organisms that have the highest degree of characteristics to produce more offspring.

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Which organisms are secondary consumers in a temperate coniferous forest?
Leya [2.2K]

Complete question:

Which organisms are secondary consumers in a temperate coniferous forest? Select all that apply:

  • moose
  • lynx
  • wolf
  • elk

Answer:

The lynx and the wolf are the only secondary consumers on the list.

Explanation:

In the trophic web, the energy transference occurs when each organism feeds on the preceding link and is eaten by the following link.

The first ones are the autotroph organism or producer, such as a vegetable, that can synthesize organic matter from inorganic matter.

The following links are the consumers: herbivores are primary consumers and feed on producers. <u>Carnivores are secondary consumers and feed on herbivores</u>, and so on. The last links are the decomposers, microorganisms that act on dead animals degrading organic matter.

According to the definition of secondary consumers, among the animals on the list, we can assume that the lynx and the wolf are the only secondary consumers. They are both carnivores and feed on herbivores.

On the other hand, the moose and the elk, are both first consumers.

4 0
3 years ago
Read 2 more answers
One type of active transport is called cotransport. In cotransport, the energy available from an ion moving through a transport
kompoz [17]

Answer:

b- It is a spontaneous process.

Explanation:

Passive transport is the type of transport of substances across the plasma membrane that occurs without energy expenditure and occurs spontaneously. There is no energy expenditure during passive transport because substances naturally move from the more concentrated to the less concentrated medium, ie in favor of the concentration gradient.

Substance transport occurs until concentrations inside and outside the cell are equalized.

According to this conceptualization we can conclude that the correct answer to your question is the letter B.

6 0
3 years ago
4. Unlike a scientific theory, a scientific law describes an observed pattern in nature without
muminat

Answer:

False

Any discovery must first be tested and have an explanation

7 0
3 years ago
Which statement is one of fact supporting how pH and flower color are related?
Goshia [24]
Yes, pH of the soil affects the colour of flower.

Flowering plants grown in acidic soil (pH<7) bears blue flowers or at has a blueish tint.

Whereas, Flowering plants grown in Neutral (pH=7) and Basic (pH>7) soil bears pink and red flowers.

A plant's flower color is determined by a complex balance between chlorophyll, beta carotene, flavonoids,etc in particular pH of the soil to give out vibrant colors like red, blue, pink, yellow,etc.
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ipaliwanag ang Ang bawat indibidwal ay nararapat na mapaunlad patungo da kanyang kaganapanipaliwanag ang bawat indibidwal ay nar
OverLord2011 [107]

Answer:

Nabuo at nagbago.

Paliwanag:

Ang bawat indibidwal ay dapat na binuo at ang mga pagbabago ay nangyayari sa kanyang hugis at istraktura sa pagdaan ng oras. Sa katawan ng organismo, ang mga cell ay patuloy na nahahati na responsable para sa pagtaas ng laki ng isang indibidwal. Sa ilang mga punto ang laki ng hihinto at ang mga bahagi ng reproductive parehong lalaki at babae indibidwal ay matured at gumana sa buong kakayahan at gumagawa ng isa pang organismo dahil sa pagsasanib ng kanilang mga sex cell.

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3 years ago
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