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2 years ago

Question 12 of 30

Biology

1 answer:

slava [35]2 years ago

5 0

Explanation:

It can help us cool down the planet before it gets too hot.

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Suppose you were in charge of sending an unmanned space probe to a new planet in search of life. The probe would be able to coll

Svetlanka [38]

Answer:

Option D, a test for the presence of cells that contain DNA

Explanation:

As we know all living organisms are made up of cells and DNA is the basic genetic material that codes for protein and traits with an organism. If even a single cell with DNA is detected on the extraterrestrial planet then it will be clear that it has life on it or the environmental conditions are favorable to support life. Cells are microscopic and hence can be seen through microscope which can be installed easily on a probe.

Hence, option D is correct

8 0

3 years ago

Does the process of DNA replication result in a copy of the original DNA molecule?

RUDIKE [14]

Answer:

it results in 2 exact copies of the original dna strand

Explanation:

The dna is unzipped and the two strands are used as templates for the 2 new dna molecules

5 0

2 years ago

Read 2 more answers

complete the flow of deoxygenated blood other parts of the body (a)_____(b)_____tricuspid valve (c)______(d)_______capillary bed

NemiM [27]

Answer:

The correct flow is - the body (a) Venules/vein/vena cava (b) Right atrium tricuspid valve (c) Right ventricle (d) Pulmonary artery, capillary bed of the lungs(alveoli)

Explanation:

Deoxygenated blood is moved from the tissues to the venules, veins or vena cava to the right atrium chamber and move through the tricuspid valve present in between both right chambers right atrium and right ventricle.

From the right ventricle, the deoxygenated blood is pumped into the pulmonary artery that takes the blood to the lungs more specifically to the capillary bed of lungs.

Thus, the flow is - the body (a) Venules/vein/vena cava (b) Right atrium tricuspid valve (c) Right ventricle (d) Pulmonary artery, capillary bed of the lungs(alveoli)

8 0

3 years ago

What the heck is biology

inessss [21]

Answer:

Biology is the scientific study of life. It is a natural science with a broad scope but has several unifying themes that tie it together as a single, coherent field. For instance, all organisms are made up of cells that process hereditary information encoded in genes, which can be transmitted to future generations. Another major theme is evolution, which explains the unity and diversity of life.

Explanation:

Hope this helps

7 0

2 years ago

explain why it is important to keep the levels of nucleotides relatively balanced in the context of dna and rna synthesis

juin [17]

Answer:

Read Below

Explanation:

Nucleotides are A & T and G&C you see in DNA and in RNA T is Replaced by U. The reason they must be balanced between G&C and T&A is because G has to bond with A in DNA and G with C so if there is more G than C that means there is mismatches between the DNA nucleotides same thing for A and T. In RNA you follow the same rule. If we have lets say 27% of our DNA as A we have to have 27% as T leaving 23% as C and 23% as G. If there was lets say 29% T while one 27% A then there was a error in DNA replication and could lead to errors in RNA synthesis if not corrected

4 0

2 years ago