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leonid [27]
3 years ago
7

The process some organisms are able to use by which they convert light energy to chemical energy

Biology
1 answer:
tatyana61 [14]3 years ago
7 0
Photosynthesis should be the answer
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Can you check if I got 1&3 right if not can you correct me plz. Thank you
Aleks04 [339]
Add to one that the other will explode because it will create a chemical reaction. For 2 you are right it will kill you to drink salt water.
8 0
3 years ago
CAN I GET ANSWER OF 2 AND 4​
Marta_Voda [28]

Explanation:

2.spirogyra

4.porifera

7 0
2 years ago
Which of the following are physical characteristics of blood?
harkovskaia [24]

Answer: Blood is slightly more viscous then water, pH is slightly alkaline it is about 8% of ones body total body weight the rest of the options are slightly wrong.

Explanation: Blood is red in colour, a dark red when it is deoxygnated and bright red when oxygenated. Its normal pH is 7,4 making it slightly alkaline and it accounts for 8% of one's total body weight with 92% being water. Its temperatures ranges around our normal body temperature which is 37°C.

3 0
3 years ago
Describe the process of altering the genetic variation of a cell using a genetically modified virus for human gene therapy. In t
Len [333]
In human gene therapy, a genetically modified virus (a.k.a. a viral vector) can alter the genetic variation of a cell, but not all viral vectors do.

The process often begins with the delivery of or creation of a segment of viral double stranded DNA (containing the gene you want to introduce). Then typically an enzyme known as an integrase cuts the ends of the segment of viral DNA and also cuts open the cell's DNA. Then the viral DNA is integrated/ inserted into the cell's DNA. The connecting ends are ligated together and adjusted so that the nucleotide base pairs match up.

This in the future may affect the gene pool for instance if the viral DNA (your gene) was inserted in the middle of another gene or important regulatory sequence of the cell DNA, and this alteration may be passed on into offspring and become present in the gene pool, which could have bad effects.

The effects on the gene pool really depends on what the virus ends up doing. For example, it may fix the function of a damaged gene which is the goal, and allow for a working gene to be in the gene pool, which would be good. The problem with gene therapy is that it's difficult to predict 100% what the virus will do every time it is given to a patient.

But it's very important to consider that it will only affect the gene pool if the virus is able to enter and alter germ cells (reproductive cells). If the virus, enters somatic cells (regular body cells) this will not be passed on to future generations. So viruses can be designed to avoid germ cells and avoid this gene pool issue. Also, some viral vectors use viruses that do not integrate their DNA, the cells just express the viral DNA (create the desired protein from it) and over time the viral DNA is degraded/ lost which wouldn't pose this threat.

This is long, but I hope it helped!
3 0
3 years ago
What substances are combined with sunlight in the process of photosynthesis?
VashaNatasha [74]

Answer:

A. carbon dioxide and water

6 0
3 years ago
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