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
vagabundo [1.1K]
3 years ago
9

Can someone please help me Will mark u brainliest !

Biology
2 answers:
Andreyy893 years ago
8 0

Answer:

Letter C

Explanation:

VLD [36.1K]3 years ago
7 0

Answer:

d i think

Explanation:

You might be interested in
Explain the thermal properties of water
Zinaida [17]

Answer:

A glance of earth taken from space will depict it blue. This blue colour is actually water, the major part of the earth is covered with water. We need water for almost everything, for example- drinking, bathing, cooking etc and therefore we should know about the properties of water. 65 % human body is composed of water. Water is essential for the survival of life on earth. Water is distributed unevenly on the earth’s surface. It forms a major solvent and dissolves almost every polar solute. So let us have a look at its properties.

Physical properties of water : Water is a colourless and tasteless liquid. The molecules of water have extensive hydrogen bonds resulting in unusual properties in the condensed form. This also leads to high melting and boiling points. As compared to other liquids, water has a higher specific heat, thermal conductivity, surface tension, dipole moment etc. These properties form the reason for its significance in the biosphere. Water is an excellent solvent and therefore it helps in the transportation of ions and molecules required for metabolism. It has a high latent heat of vaporization which helps in the regulation of body temperature

Chemical properties of water: Amphoteric nature:

Water can act as both acid and base, which means that it is amphoteric in nature.

Example:

Acidic Behaviour: H2O(l)+NH3(aq) ⇌ H3O+(aq)+NH+4(aq)

Basic Behavior: H2O(l)+H2S(aq) ⇌ H3O+(aq)+HS−(aq)

Redox reactions:

Electropositive elements reduce water to hydrogen molecule. Thus water is a great source of hydrogen. Let us see an example in this case:

2H2O(l)+2Na(s)→2NaOH(aq)+H2(g)

During the process of photosynthesis, water is oxidized to O2. As water can be oxidized and reduced, it is very useful in redox reactions.

Hydrolysis reaction

Water has a very strong hydrating tendency due to its dielectric constant. It dissolves many ionic compounds. Some covalent and ionic compounds can be hydrolyzed in water.

Explanation:

7 0
2 years ago
When the chemical name of a compound is being written the subscripts will determine the
erma4kov [3.2K]

Answer:

It will determine the number of molecules of the particular chemical in the compound.

8 0
3 years ago
Read 2 more answers
An organism that contains two different alleles for a trait is said to be _______ for that trait.
jekas [21]

Answer:

The answer is A. Heterozygous

4 0
3 years ago
Watch the following Changing with the Times: Variations within Ecosystems tutorial. Write a summary paragraph (4-6 sentences) de
tester [92]

Answer:

  Variations Within Ecosystems

Ecosystem diversity can be described as a term which is used o describe the changes within an ecosystem and the impact these changes have on the environment and humans.

Variations within an ecosystem can cause genetic drifts. Variations will cause those organisms to survive which are better adapted to survive to the changes which occur in an ecosystem. And the organisms which are not better suited become extinct over a period of time. Hence, this will lead to a wide rise in biodiversity.

6 0
3 years ago
How will scientists know if a patient is cured from HIV
omeli [17]

There body will be able to fight off sickness and cancers again. The immune system will slowly start to rebuild and become strong again.

8 0
3 years ago
Other questions:
  • DNA wasn't definitively shown as the carrier of inheritance until which year?
    5·1 answer
  • Deepwater waves occur when the depth is
    8·1 answer
  • The U.S. has sent unmanned spacecraft to _____ the planets in our solar system. A. all B. most C. some D. none of
    6·2 answers
  • During the twentieth century,what was added to the relative time scale
    7·1 answer
  • How do scientists recognize that a climax community has been reached? A. The succession of community is completed. B. No more na
    11·2 answers
  • In your own words describe how genetic diversity is increased through the processes of crossing over, independent assortment, an
    8·1 answer
  • I WILL GIVE BRAINLIEST!!!
    14·1 answer
  • How might we predict whether their next child will show the trait of albinism?
    5·1 answer
  • This one strawberry plant is sending out a runner that grows into another strawberry plant. What type of reproduction would this
    12·2 answers
  • Which of the following is a benefit of sustainable agriculture?
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!