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2 years ago

Looking at a cell under a microscope, you note that it is prokaryote. How do you know?\

Biology

2 answers:

oee [108]2 years ago

8 0

C) The cell lacks nucleus.

A Prokaryotic cell does not contain a nucleus. It only contains one chromosome and is a single-celled organism. It was the only form of life on earth for millions of years. Examples of a Prokaryotic cell are the different types of bacteria present today.

A Eukaryotic cell contains a nucleus; more than one chromosome and is typically a multi-celled organism. Both plant and animal cells are eukaryotic cells.

9966 [12]2 years ago

4 0

C) The cell lacks a nucleus.

A eukaryotic cell has a nucleus, but prokaryotic cells do not.

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In 1958, Meselson and Stahl conducted an experiment to determine which of the three proposed methods of DNA replication was corr

Katen [24]

<h2>Meselson and Stahl conducted an experiment to determine the correct proposed methods of DNA replication was semi-conservative. the three proposed models for DNA replication are semi-conservative, conservative, and dispersive.</h2>

Explanation:

In Semi-conservative replication model, the two strands of DNA uncoil from each other. It perform with the original strand and a new strand.

In Conservative replication model, DNA replication didn't open at all, but the parent strands remains undamaged by creating a new and separate molecule that consists of two new strands.

In Dispersive replication model, DNA replication results in two DNA molecules that consists of both parental and daughter DNA.

He demonstrated that semi-conservative DNA replication is an universal mechanism allocated by all organisms on Earth.

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3 years ago

select all of the following that are examples of how organisms respond to external stimuli. multiple select question. a person r

Airida [17]

The answer is a person removes their hand after touching a hot stove and a person turns their head toward the source of loud noise.

External stimuli are factors outside of the body that is taken in by receptors and will lead to a response. Examples of external stimuli include temperature changes, vision, hearing, tasting, smelling, and even sunlight for plants.

Learn more about External stimuli here:

brainly.com/question/11557304

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1 year ago

What is Photosynthesis?

yawa3891 [41]

Photosynthesis is a process used by plants and other organisms to convert light energy into chemical energy!

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3 years ago

Read 2 more answers

IF most of the energy we use on earth comes from the sun –how does that energy (light and thermal) end up

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Answer:

1: Chemical Energy

2: Kinetic Energy

3: Electrical Energy

4: Mechanical Energy

Explanation:

1: The energy held in food is called chemical energy. It is a form of potential energy held within chemical bonds between atoms.

2: When flowing water is captured and turned into electricity, it is called hydroelectric power or hydropower. There are several types of hydroelectric facilities; they are all powered by the kinetic energy of flowing water as it moves downstream.

3: The power for lights and stuff is Electrical Energy, ofc :]

4: The chemical energy in the food gets changed into the mechanical energy of moving muscles.

Hope this helps!! :D

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2 years ago

if you were able to create a planet capable of supporting life forms similar to those on earth, the necessary elements to includ

Paraphin [41]

Oxygen, water, some type of resources to build, and food to eat

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3 years ago