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
cupoosta [38]
3 years ago
10

About 1.2 billion years ago, eukaryotic and multicellular organisms evolved because

Biology
1 answer:
qwelly [4]3 years ago
3 0

Answer:

Oxygen became available from cyanobacteria

Explanation:

You might be interested in
The relationship between catabolism and anabolism is most similar to the relationship between which of the following pairs of te
MrMuchimi

Answer:

The pair of terms whose relationship is very similar to the relationship between catabolism and anabolism are exergonic and endergonic.

Explanation:

Anabolism and catabolism are processes that occur in matabolism, whose result is different.

  • <u><em>Anabolism </em></u><em>involves all the processes of manufacture or synthesis, in which chemicals are bound together to form new compounds. This process consumes energy, so it is called </em><em>endergonic</em><em>. </em>
  • <u><em>Catabolism</em></u><em>, unlike anabolism, is the process of degradation of complex molecules into simple molecules. One of the results of catabolism is the release of energy, which is equivalent to saying that it is an </em><em>exergonic</em><em> process. </em>

Relating catabolism to anabolism is similar to relating exergonics to endergonics.

  <em>  The other terms do not represent a similarity with the relationship between the processes of catabolism and anabolism.</em>

7 0
3 years ago
Complement proteins and antibodies coat a microorganism and provide binding sites, enabling macrophages and neutrophils to phago
Lera25 [3.4K]

Opsonization.

Explanation:

  • Complement proteins and antibodies coat a microorganism and provide binding sites, enabling macrophages and neutrophils to phagocytize the organism. This phenomenon is termed opsonization.

Opsonization occurs as a result of binding of a molecule called opsonin to the epitope of a pathogen.

Opsonization helps the immune system to select and kill the infected cells instead of targeting all the cells in general.

5 0
3 years ago
What is the primary area of the brain which connects the two cerebral hemispheres?
Sergeu [11.5K]
Corpus Callosum is a band of thick fibres which connects the hemispheres of the brain.
3 0
3 years ago
Cystathioninuria can be caused by two different mutations in the enzyme cystathionase. Cystathioninuria caused by mutation 1 can
polet [3.4K]

Answer:

C. The enzyme with mutation 1 has decreased affinity for pyridoxal phosphate, whereas the enzyme with mutation 2 has lost the ability to bind to the substrates.

Explanation:

A coenzyme is an organic cofactor that binds with an enzyme in order to initiate or aid the function of the enzyme. A coenzyme binds to the active site of the enzyme (where the reaction occurs), thereby triggering its activation by modifying protein structure during the reaction. Some examples of coenzymes include Coenzyme A and Adenosine triphosphate (ATP). Pyridoxal phosphate is a coenzyme (it is the active form of vitamin B6) that is required for the function of cystathionase. Moreover, cystathionase is an enzyme that enables cells the synthesis of cysteine from methionine (transsulfuration pathway). The binding of pyridoxal phosphate to the enzyme increases the binding affinity of the enzyme for the substrate, thereby influencing its activity. In this case, it is expected that mutation 1 reduces the binding affinity of the enzyme to the cofactor, and thereby the cofactor is required at a higher concentration to restore normal enzyme activity.

3 0
3 years ago
What is the acronym for CHANGE.
irakobra [83]
An acronym for change would be preserve because that means keep
3 0
3 years ago
Other questions:
  • What is nitrogen fixation and why are bacteria crucial to this cycle of life?
    13·1 answer
  • 1. number and variety of species on Earth
    5·2 answers
  • Snapdragons, a flowering plant popular with gardeners, can have red, white, and pink colored petals. When snapdragons with red p
    9·1 answer
  • The stage of mitosis when the spindle fibers are assembled is
    15·1 answer
  • Help plzzzzzzz BIOLOGY
    8·2 answers
  • Recovery from the 2008-2009 recession was agonizingly slow. what factors might have constrained faster growth?
    14·1 answer
  • Are special instructions that come from an organism’s parents
    15·1 answer
  • Winds blowing across the ocean surface cause friction which results in
    6·2 answers
  • Which is the highest location shown on the topographic <br> Map shown below
    14·1 answer
  • Anyone there from kvs school bihar <br>i need help​
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!