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AleksAgata [21]
3 years ago
5

What important process happens at the capillaries?

Biology
1 answer:
Zarrin [17]3 years ago
5 0

Answer: Capillaries connect the arterial system — which includes the blood vessels that carry blood away from your heart — to your venous system. Your venous system includes the blood vessels that carry blood back to your heart. The exchange of oxygen, nutrients, and waste between your blood and tissues also happens in your capillaries.

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The term used to identify identical strands of DNA held together by a centromere
givi [52]
<span>The two identical chromosomes that result from DNA replication are referred to assister chromatids. Sister chromatids are held together by proteins at a region of the chromosome called the centromere.</span>
5 0
3 years ago
What differs among DNA structures of different species?
weqwewe [10]

Answer:

D) the arrangement of the nucleotides within genes

Explanation:

De-oxy ribo nucleic acid that is basically a polymer of nucleotides. Nucleotides are composed of three basic units: a de-oxyribose sugar unit, a phosphate group and nitrogenous bases that can be Adenine, Gunanine, Thymine and Cytosine.Adenine always pairs with Thymine and Guanine always pairs with Cytosine.

This is a universal composition of DNA in each and every living organism. The genes are a segment of DNA that contain specific sequence of nucleotides and encode for a specific trait of organism such as height, weight, eye color etc. The sequence of nucleotides expresses the trait in the form of protein product during the process of Translation. The products of translation are amino acids and every amino acids encode for a specific protein  in almost  all living organisms.

So, what differs in the specie is the sequence of nucleotides in genes. Infact this is the nucleotide sequence which brings evolution in organism and organisms evolve to form new specie with the passage of time. One major cause of change in nucleotide sequence is mutations due to which the organisms change with time.

Suppose the sequence of nucleotide of specific gene in organism A is

AAGGGGAAATTT

However in other specie organism B of same specie is:

TAGGGGAAATTT

This means only mutation of one base changed the gene in organism B and also its product called protein.

Hope it help!

8 0
3 years ago
Read 2 more answers
Large changes in temperature and acidity interfere with enzyme activity by _
ankoles [38]

Answer: Denaturing

Explanation: Enzymes are made of amino acids that are linked by bonds, amongst those bonds are hydrogen bonds that are very weak. High temperatures and low pH(acidity) breaks those bonds changing the molecular conformation of the enzymes. That way they denature and loss the ability to perform their functions. High temperatures and acidity alter the structure of their active site preventing the substrate from binding to them. While high temperatures denatures enzymes, low temperature renders them inactive.

7 0
3 years ago
What neurons always synapse with an effector?
Archy [21]

Answer:

Efferent/motor neuron

Explanation:

Efferent/ motor neuron synapse with an effector because efferent neuron is a nerve cell such as motor neuron that transmit electrical impulses o r information from the centre nervous system to the effector which then cause or lead to physiological changes or response to the body . The contain majorly of motor neurons or nerve fiber that send signals from the central nervous system(brain /spinal cord) to the effector neuron for changes that occur physically.

8 0
2 years ago
This energy is absorbed by pigments such as ____ which is presented in all photosynthetic organisms?
Shalnov [3]

Answer:

Chlorophyll

Explanation:

The chloroplasts is the organelle that process sunlight energy. Chlorophyll is the pigmentation within plants that absorbs sunlight

3 0
3 years ago
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