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frutty [35]
2 years ago
11

How do identify veins in our body​

Biology
1 answer:
Alexandra [31]2 years ago
4 0

Answer:

Veins are blood vessels in humans, and most other animals that carry blood towards the heart. Most veins carry deoxygenated blood from the tissues back to the heart; exceptions are the pulmonary and umbilical veins, both of which carry oxygenated blood to the heart. In contrast to veins, arteries carry blood away from the heart.

Explanation:

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Two principal approaches governing the study of animal behavior​
Ksivusya [100]

Answer:

Ecological and ethological approaches to the study of behaviour. The natural history approach of Darwin and his predecessors gradually evolved into the twin sciences of animal ecology, the study of the interactions between an animal and its environment, and ethology, the biological study of animal behaviour.

8 0
3 years ago
List ten factors which can be involved in regulating bacterial gene expression (includes specificity and level of expression). "
nirvana33 [79]

Answer:

At least 6 were provided:

1. Transcription.

2. Chromatin domains.

3. mRNA degradation.

4. RNA transport.

5. Translation.

6. Post-transcriptional modification.

Explanation:

Chromatin domains.

Changes to the epigenome can result in changes to the structure of chromatin and changes to the function of the genome.

Transcription.

During transcription, a DNA sequence is read by an RNA polymerase, which produces a complementary, antiparallel RNA strand called a primary transcript.

Post-transcriptional modification.

is a set of biological processes common to most eukaryotic cells by which an RNA primary transcript is chemically altered following transcription from a gene to produce a mature, functional RNA molecule that can then leave the nucleus and perform any of a variety of different functions in the cell.

RNA transport.

mRNA is created during the process of transcription, where the enzyme RNA polymerase converts genes into primary transcript mRNA (also known as pre-mRNA). This pre-mRNA usually still contains introns, regions that will not go on to code for the final amino acid sequence.

Translation.

In translation, messenger RNA (mRNA) is decoded in the ribosome decoding center to produce a specific amino acid chain, or polypeptide.

mRNA degradation.

Different mRNAs within the same cell have distinct lifetimes (stabilities). In bacterial cells, individual mRNAs can survive from seconds to more than an hour. However, the lifetime averages between 1 and 3 minutes, making bacterial mRNA much less stable than eukaryotic mRNA.

3 0
3 years ago
The water weight lost while taking a diuretic is only temporary. true or false
Bumek [7]
It is true Have a very nice day
3 0
3 years ago
Read 2 more answers
Where does photosynthesis happen in the plant, and what is chlorophyll?
Lena [83]

Answer:

Photosynthesis takes place inside plant cells in chloroplasts.

Chlorophyll is a green pigment,present in all green plants which is responsible for the absorption of light to provide energy for photosynthesis.

8 0
3 years ago
Read 2 more answers
A Canyon landscape is of economic importance to an area. Explain
bixtya [17]

Answer:

.

Explanation:

............................

3 0
2 years ago
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