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Dvinal [7]
3 years ago
9

PLEASE HELP ME!!!!! 80 POINTS!!

Biology
1 answer:
VARVARA [1.3K]3 years ago
6 0

Answer:

Dear Ms. Sandy Walters I am very impressed, happy, and greatful that you did this. I wouldn't expect any less from a great mind like you. Although we do not know eachother I do know one thing: Your work is inspiring.

Sincerely, hamborger69

Explanation:

Yeah it sucked I know but I hope it helps.

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Mechanism of photosynthesis
Mademuasel [1]

Answer:

light reaction and dark reaction.

6 0
2 years ago
This type of mutation occurs when one or more base pairs are added to the gene sequence. PLEASEEEEE HELPPPPP MEEEE!!!!
aksik [14]

Answer:

Insertion

Explanation:

Mutation is a phenomenon in which the nucleotide sequence of a gene in DNA is changed into a new sequence due to insertion, deletion or  exchange of a gene segment.

Insertion is a type of  mutation in which one or more than pne base sequence in added into the DNA of an organism. This insertion may or may not be dangerous depending on the place of insertion and how it is causing adverse effects on the protein product of the gene.

Here is an example of insertion mutation:

Base sequence: AUG GCC TGC

Product:           met     ala      gln

Insertion:

Base sequence: AUG GCC   C TG     C

Product:              met     ala      Leu

So we can see that the product protein is changed because of insertion.

Hope it helps!

5 0
2 years ago
Read 2 more answers
Before there was any life on earth, which gas was absent from earth’s ancient atmosphere? A. nitrogen B. ammonia C. oxygen D. me
maksim [4K]
Easy. Answer is oxygen because it says which one was missing before any life was on earth. And in order to have life on earth you need oxygen! 
:)
7 0
3 years ago
Vitamins and minerals keep the blood healthy. Which part of the blood carries minerals, vitamins, and other nutrients to the bod
morpeh [17]
The plasma carries these substances.
6 0
3 years ago
In what ways do humans affect the different trophic levels in ecosystems on Earth?
Allushta [10]

Answer:

Our results contrast with research conducted in protected areas that suggested human effects in the food web are primarily predator-mediated. Instead, human influence on vegetation may strengthen bottom-up predominance and weaken top-down trophic cascades in ecosystems.

Explanation:

8 0
3 years ago
Read 2 more answers
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