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
Scorpion4ik [409]
2 years ago
5

What is genetic biodiversity?

Biology
1 answer:
Nady [450]2 years ago
6 0

Answer:

So it would be the first one, The variation in biological factors affecting a species.

Explanation:

Genetic diversity is the total number of genetic characteristics in the genetic makeup of a species, it ranges widely from the number of species to differences within species and can be attributed to the span of survival for a species.

All forms of life on earth, whether microbes, plants, animals, or human beings, contain genes. Genetic diversity is the sum of genetic information contained in the genes of individual plants, animals, and micro-organisms. Each species is the storehouse of an immense amount of genetic information in the form of traits, characteristics, etc. The number of genes ranges from about 1000 in bacteria to more than 400 000 in many flowering plants. Each species consists of many organisms and virtually no two members of the same species are genetically identical.

An important conservation consequence of this is that even if an endangered species is saved from extinction it has probably lost some of its internal diversity. Consequently, when populations expand again, they become more genetically uniform than their ancestors. There are mathematical formulas to express a genetically effective population size that explain the genetic effects on populations that have gone through a bottleneck before expanding again such as the African cheetah or the North American bison. Subsequent inbreeding in small populations may result in:

a) reduced fertility and

b) increased susceptibility to disease.

Genetic differentiation within species occurs as a result of sexual reproduction, in which genetic differences between individuals are combined in their offspring to produce new combinations of genes or from mutations causing changes in the DNA. Genetic diversity is usually mentioned with reference to agriculture and maintaining food security. This is because genetic erosion of several crops has already occurred leading to the world's dependence for food on just a few species. Currently, a mere 100-odd species account for 90% of the supply of food crops, and three crops – rice, maize, and wheat – account for 69% of the calories and 56% of the proteins that people derive from plants.

Have a good day <3

You might be interested in
 Which of the following does not lay amniotic eggs? 
Fiesta28 [93]
<span>B. Marsupials. </span>Amniotic eggs is a unique kind of egg because they possess a semipermeable shell to protect the egg but it also allows gas exchange. Inside an amniotic egg contains the amnion, chorion and allantois. Animals that lay amniotic eggs are called amniotes, which include reptiles, birds, dinosaurs, monotremes (platypus).
7 0
3 years ago
How did Rachel Carson's book, Silent Spring, alter the way people thought about and treated the Earth? ​
shepuryov [24]

Answer:Rachel Carson Book's "Silent Spring" changed the way people thought and treated the Earth by showing the destructive impacts of pesticide use on animal life. Explanation: ... Silent Spring is considered the first worldwide warning against the harmful effects of pesticide use in agriculture.

Explanation:

6 0
2 years ago
Which of the following is least likely to provide evidence of biological evolution?
asambeis [7]
Common geographic distribution
3 0
2 years ago
Read 2 more answers
The picture shows a scientist collecting data from an ice core: What kind of data can be collected from ice cores to learn about
Ilya [14]

Ice core can tells various information regarding the atmosphere. It can reveal the temperature, precipitation, and other atmospheric conditions. Here in the image, the scientists can learn about the ocean surface temperature, i.e., option D.

<h3>What is an ice core?</h3>

Ice cores are ice-drilled cylinders made from ice sheets and glaciers.

They are capsules that are frozen and allow scientists to reconstruct climate far into the past.

It can be used to detect the ocean surface temperature.

Thus, the correct option is D.

For more details regarding ice core, visit:

brainly.com/question/18170844

#SPJ1

4 0
2 years ago
Explain how producers, consumers, and decomposers obtain the energy they need.
lina2011 [118]
Producers get the energy they need from the sun. Consumers get their energy from the plants and animals that they eat. Decomposers get energy from eating dead plants and animals.<span />
6 0
3 years ago
Read 2 more answers
Other questions:
  • An injury to the nervous system results in nervousness and hyperactivity. Which division of the nervous system was damaged by th
    11·1 answer
  • Someone plz help me i don't understand these
    11·2 answers
  • I need too know the answer
    10·2 answers
  • Which condition can cause a population crash?
    11·1 answer
  • 2.08 cm =__________mm
    7·2 answers
  • Match the clue with the correct answer
    7·2 answers
  • How are atoms in molecules being rearranged into different molecules?
    13·1 answer
  • As a result of crossing two hterozygous yellow garden peas, 120 offspring are produced. What is the phenotypic ratio of these of
    12·2 answers
  • (20 points!)
    6·1 answer
  • Which is a way that the amount of
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!