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valkas [14]
3 years ago
14

Where does the primary source of energy needed for life come from

Biology
2 answers:
tresset_1 [31]3 years ago
4 0

Answer:

the sun provides all energy

arlik [135]3 years ago
3 0
The primary source of energy needed for life is the sun.
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As the popliteal vein ascends the leg, it becomes the
olasank [31]

Answer:

D. Femoreal vein.

Explanation:

Close to the popliteal artery, the popliteal vein extends and transports blood from the knee (and also the muscles from the thigh and calf) once again up to the heart. This vein has its origin in the joint between both the anterior and posterior tibial veins, proximal to the knee.

Also, the popliteal vein starts its extension from the popliteal artery, which can be found behind the knee, and the drainage of the peroneal vein is performed by it prior to reaching the knee joint, where the popliteal vein becomes known as the femoral vein.

6 0
2 years ago
What are the kinetic energy of the atoms
Anvisha [2.4K]

Answer:

Kinetic and potential energy of atoms result from the motion of electrons. When electrons are excited they move to a higher energy orbital farther away from the atom. The further the orbital is from the nucleus, the higher the potential energy of an electron at that energy level.

Explanation:

Kinetic and potential energy of atoms result from the motion of electrons. When electrons are excited they move to a higher energy orbital farther away from the atom. The further the orbital is from the nucleus, the higher the potential energy of an electron at that energy level.

hope what a write is correct and it help you

4 0
2 years ago
Mr. carusa has chronic hypertension. he is scheduled for a procedure in which x-rays are taken after contrast material is inject
trapecia [35]
The procedure is called renal angiography. This procedure is done to check the quality of blood flow to the kidneys, check for blockages, narrowing of the blood vessels and lastly aneurysm. A dye is usually injected into the arteries for easier visualization.
6 0
3 years ago
Which of the examples are considered anabolism? select all that apply.
timama [110]

Anabolism is for the synthesis of complex molecules essential in the building up of organs and tissues. It is therefore responsible for the increase in body size. Examples of anabolism are bone growth and mineralization, and muscle mass build-up.

7 0
2 years ago
Read 2 more answers
Rna in cells differs from dna in that ___________________. select one:
irinina [24]
Hello! 

RNA in cells differs from DNA in that it is single-stranded and can fold up into a variety of structures.

RNA is the abbreviation for RiboNucleic Acid. It is a biological molecule that fulfills an important role by copying the information stored in the DNA (DeoxyriboNucleic Acid) and transporting it to the different proteins by folding into different shapes. Its name come from a Ribose molecule that is present in this single-stranded molecule.  

Viruses don't have DNA, only RNA. They only replicate in the host's cells by copying their own RNA information. 

Have a nice day!
3 0
3 years ago
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