BIOLOGY MIDDLE SCHOOL

What is phosphate group in dna?

Answers

Answer 1
Answer: A phosphorus atom. Bound to four Oxygen atoms.. hope this helps
Answer 2
Answer: A phosphate group is the DNA backbone in DNA

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Which of the following statements is true about the alpine biome, but not the taiga? a. temperatures are below freezing during the winter. b. precipitation can average 12 inches annually c. it has a small temperature range during the summer d. it has two distinct seasons.
What is the value of a transitional fossil?

All the iron molecules that are in your body were originally created by____A a black hole
B a star
C a nebula
D the sun
E the force of gravity

Answers

Answer: Option 'B' is correct.

Explanation:

All the iron molecules that are in your body were originally created by a star.

During a star supernova, a very large amount of energy and neutrons are released by stars which allows heavier elements to be produced.

And when there is explosion of star occurs, those elements are found which is used to make DNA and DNA contains large amount of iron molecules.

Hence, Option 'B' is correct.

I think the answer is B - a star! Hope this helps!

How do organisms benefit from adaptations?

Answers

Organisms benefit from adaptations because in order for them to survive, they need to adapt to their surroundings. For example, if a shark didnt have fins or a tail, it wouldnt be able to swim and catch its prey.
Organisms benefit from adaptation by surviving longer, reproduction, blending with their environment, and evolving.

Nelly was reading about ecological pesticides. She found a website that said that skeletons of some organisms settle as sediments in the ocean. They are then used as pesticides because they are abrasive against pests. Which organism is the article discussing?A. dinoflagellates
B. diatoms
C. green algae
D. euglenoids
E. amoeba

Answers

The answer is B. When diatoms die and fall off the ocean column to the ocean floor, they become part of sediments over time. When they are mined and exposed, they turn to a diatomite. Diatomaceous earth is significant as a pest repellant because of its hygroscopic property and has very abrasive particle hence it absorbs the water-protective fats and oils from the outermost layer of insects.

Answer:

B. diatoms

(on plato)

The first organism in a food chain is a what type of organism?

Answers

An organism that makes its own food.
Example- plants.
The first organism in a food chain is always a plant.
Producer. Or autotroph. Plants yes.

Describe how a generator turns mechanical energy into electrical energy PLEASE HELP

Answers

uses electrical to turn the pumps in the gentator

When must DNA replication occur during the cell cycle for each daughter cell to receive a complete copy of DNA?

Answers

During S phase, DNA replication occur during the cell cycle for each daughter cell to receive a complete copy of DNA.

What is cell cycle?

A cell'sgrowth and division are accompanied by a sequence of processes known as a cellcycle.

A cell spends the majority of its time in what is known as interphase, where it develops, duplicates its chromosomes, and gets ready to divide. The cell then exits interphase, goes through mitosis, and finishes dividing.

Following this, the celldivides into two daughter cells, distributing one copy of the duplicated material to each. When each daughter cell has its own outer membrane around it, the cell cycle is finished.

Genetically speaking, the parentcell, together with the two brand-new daughter cells, are all the same.

Prior to mitosis and cell division, DNA replication takes place during the S phase (also known as the Synthesis phase) of the cell cycle.

Thus, the DNA replication occur during Sphase of the cell cycle.

For more details regarding cell cycle, visit:

brainly.com/question/15876101

#SPJ6

Answer:DNA replication occur in mitosis process at( S-synthesis) interphase stage

In multicellular organism
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