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
brilliants [131]
3 years ago
10

The combined portions of earth in which all living things exist is called the

Biology
1 answer:
Svetach [21]3 years ago
6 0

Answer:

The answer is the Biosphere.

Explanation:

A good way to remember this is to recall <em>'Bio'</em> means <em>'Life.'</em>

You might be interested in
life cycles of sexually producing organisms involve the alternation of haploid and diploid stages true/false
kolbaska11 [484]

Answer:

True

Explanation:

<em>The life cycles of sexually producing organisms generally involve alternation between the haploid and diploid generations.</em>

<u>Sexual reproduction involves the fusion of gametes - fertilization. The gametes are haploid (n) and are usually formed by the reductional division (meiosis) of diploid (2n) sex cells. </u>

Haploid gametes represent the haploid stage of the life cycles of sexually reproducing organisms.  During fertilization, the male and female gametes fuse together to form a diploid zygote. The zygote then continues to divide equationally (mitosis) and differentiates to give rise to a baby and eventually to either male or female adult organism.

8 0
3 years ago
Blasting a hole in a mountain in order to build a railroad is an example of which theme of geography
Nataly [62]
Performing a cut (also known as earthmoving)

5 0
3 years ago
Read 2 more answers
Which provides the best example of perseverance ?
Masteriza [31]
School is an example like you have a load of work and its hard and u keep going cuz u know it will get you someone good adn another is running a marothon even though its hard you just keep going. hope this helps and please rate below :)
4 0
3 years ago
2. In the citric acid cycle, malate is oxidized to oxaloacetate by the enzyme malate dehydrogenase, which uses NAD+ as an electr
atroni [7]

Answer:

NAD+ act both as coenzyme as well as electron acceptor compound and get reduced to NADH by accepting electron.

Explanation:

NAD+ act as co enzyme of various biological catalyst such as malate dehydrogenase, isocitrate dehydrogenase etc.

             NAD+ can act as co enzyme only in its oxidized form but not in its reduced form called NADH.

         Many reaction needs NAD+ to occur such as conversion of glyceraldehyde 3 phosphate to 1,3 bisphosphoglycerate, malate to oxaloacetate.

              That"s why NAD+/NADH ratio is kept very high because if this ratio bychance get  low then it will hamper the normal redox potential of NAD+/NADH.As a result many biochemical reaction will not take place.

6 0
3 years ago
Penicillin is an antibiotic that was discovered in 1928. Today many species of bacteria have acquired resistance to penicillin.
mr Goodwill [35]
Genetic mutation is the answer to your question
3 0
3 years ago
Read 2 more answers
Other questions:
  • If a DNA molecule is 22% adenine in any organism, which percentage of thymine will that DNA molecule contain?
    11·1 answer
  • Proteins are called the building blocks. Theyre needed for growth and development and to repair the normal wear and tear of the
    11·1 answer
  • Which two feild of study do the principles of biomechanics come from
    7·2 answers
  • During which changes of state does the motion of the atom decrease
    10·1 answer
  • Name two Nature given important part of our life
    5·2 answers
  • What si the answer ? Somebody pls smart peopdn
    5·1 answer
  • Choose 2 of the following cycles (carbon, phosphorus, nitrogen, water) and describe each stage of them thoroughly.
    5·1 answer
  • Please help will give brainliest
    11·1 answer
  • When an enzyme becomes denatured, what often happens to the rate of reaction?
    5·2 answers
  • Identify the correct number of protons, neutrons, and electrons of an element with the following information
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!