1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
sashaice [31]
3 years ago
7

Evolutionary theory contends that genetic ___________ is necessary and beneficial for humanity when there is an environmental ch

ange.
Biology
1 answer:
Anni [7]3 years ago
8 0

Answer:

variation

Explanation:

Genetic variation is what makes us all unique as a result of subtle changes in our DNA.  The Theory of Evolution is a process in which organisms change over time as a result of adapting to their environment.  Charles Darwin came up with the term Survival of the fittest, in any environment plants and animals from the same species show natural variation in their physical characteristics, like neck lengths in giraffes.  Darwin suggested that the plants and animals best suited to the environment will survive and pass on their characteristics to their offspring. Over time, the characteristics of the surviving members of the species will become predominant.

Example: Peppered moth

In London in the 1800's, 98% of peppered moths had light colored bodies and only 2% were dark.  The light moths were the same color as the trees so they could easily hide from hungry birds and not get eaten.  The dark moths however were easy to see and were eaten.  Then came the factories and smoke of the industrial evolution and many trees turned black with soot and suddenly the dark moths were able to survive better as they now looked like the trees and the light colored moths were easier to spot and eat.  By 1895 the dark peppered moths made up 95% of the population and the light colored moths only 5%.  This is an example of natural selection, because of the gene that makes the moths dark, it allowed them to flourish when the environment changed, they adapted, reproduced and survived.

You might be interested in
The primary difference between what qualifies as serial murders and what qualifies as mass murders is the selection of victims.
maxonik [38]
I believe the appropriate answer is a cooling-off period. The cooling off period us described as the state of returning to the offender's usual way of life between homicides. The key distinction between the serial killers and mass or spree killers is this emotional cooling off period in which the killer blends back into his/her normal life.
7 0
3 years ago
(20 Points) to whoever solves this CORRECTLY!
Firdavs [7]

Answer:

D

Explanation:

5 0
3 years ago
3. Four alleles determine if a rabbit is white, brown, or gray. This is an example<br> of
vichka [17]

Answer:

Principle Condominance

6 0
3 years ago
What happens during evaporation? water falls from the atmosphere to the ground water vapor changes into a liquid and forms cloud
motikmotik

Surface water changes into a gas and enters the atmosphere.

5 0
3 years ago
The evolutionary history and development of whales has been hotly debated. Recently there has been a major shift in our understa
Alja [10]

Answer:

Aspects of evolution are constantly being challenged and explored in light of new evidence

Explanation:

The whole idea of evolution has to do with the fact that organisms developed into their present form from simpler life forms. According to Oxford dictionary, evolution is; ''the process by which different kinds of living organism are believed to have developed from earlier forms during the history of the earth.''

Evolution depends on evidence from fossil records. Evidences that support the theory of evolution continue to be amassed as science advances. Hence, aspects of evolution are constantly being challenged and explored in light of new evidence.

For this reason, the evolutionary history and development of whales is being hotly debated and there has recently been a major shift in our understanding of the processes used to detail whale evolution.

8 0
3 years ago
Other questions:
  • A train travels at 69 kilometers in 1 hours and then 98 kilometers in 5 hours. What is it’s average speed?
    6·1 answer
  • What organism is multicellular and has cells that contain a nucleus and have a cell wall made of cellulose. the organism obtains
    12·1 answer
  • A cell undergoes a nuclear division and separation of the cytoplasm, after which the number of cellular organelles is doubled, a
    12·1 answer
  • What is a difference between prokaryotic and eukaryotic cells?
    13·2 answers
  • Aldosterone is _____. see concept 44.5 (page 992) view available hint(s) aldosterone is _____. see concept 44.5 (page 992) trigg
    5·1 answer
  • Two example of exothermic reaction in our daily life
    9·2 answers
  • PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!! PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!! PLSSS HELPPPP I WILLL GIVE YOU B
    6·2 answers
  • Grass starts with 30,000 kcal of energy. A cheetah would acquire
    14·1 answer
  • What is most likely to result when a mutation affects a DNA sequence?
    7·1 answer
  • What type of trait in mendel's studies could vanish in one generation and reappear in the next generation?
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!