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2 years ago

What is the best topic to choose for a science fair project

1 answer:

7 0

This isn't a topic. But a good tip is to choose something you find interest in. This way you can present your project in a good, happy manor and actually enjoy doing the project.

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Find the word to correctly describe the action that makes a vector successful

icang [17]

Answers in order from top to bottom for statements on the left side of page.

1. Activate

2. Avoid

3. Integrate

4. Target

6 0

2 years ago

What is a characteristic of the tissue layers that make up the epidermis?(1 point)

Dennis_Churaev [7]

Answer:

I think it's B They contain many of the sensory cells found within the skin.

Explanation:

Please mark me brainliest if correct

7 0

2 years ago

How is an animal’s point of balance determined?

scoray [572]

D the wide angle vision

4 0

2 years ago

Read 2 more answers

Which of the following does NOT characterize proteins?

8090 [49]

Answer:

The answer is C) They appear to be the molecular carriers of coded hereditary information.

Explanation:

Why NOT C) They appear to be the molecular carriers of coded hereditary information?

This is the job of the nucleic acids. It is composed of nucleotides which are the basic units of DNA and RNA. They carry genetic information about a certain organism.

<h3 /><h3>True of proteins:</h3>

A) They may be denatured or coagulated by heat or acidity.

Denaturation is the destruction of the protein's secondary and/or tertiary structures. The primary structure is not disrupted due to the tough peptide bonds and can only be broken down by acid. For heat denaturation, hydrogen bonds are destroyed, as in cooking of egg whites and medical equipment sterilization.

B) They have both functional and structural roles in the body.

There are many kinds of proteins that have functional and structural roles like hormones (FSH, LH), antibodies (IgA, IgM), enzymes (lipase, amylase), for storage/transport (hemoglobin, ferritin), and locomotion (actin, troponin).

D) Their function depends on their three-dimensional shape.

Just like hemoglobin, it's quaternary structure can carry 4 molecules of iron in one go. Enzymes are shaped accordingly to fit a specific substrate (lock-and-key model)

6 0

3 years ago

What is responsible for the red tide phenomenon? It is a phenomenon that usually coincides with storm surges; the name comes fro

tatuchka [14]

Answer:

Red tide occurs in patches of water where certain species of dinoflagellates flourish.

Explanation:

Red tides refer to the noticeable microalgae proliferation that can be recognized for being a big spot in the sea of a characteristic coloration. This phenomenon is caused by two microalgae groups: diatoms and dinoflagellates, both part of phytoplankton.

Red tides occur when certain environmental factors -such as temperature, light, nutrients availability, ph, etcetera- favor the overproduction of these organisms. These species produce toxins that turn to be dangerous for other animal species that feed on them.

Because these microorganisms produce pigments, their accumulation on the sea surface can be noticed as reddish, brown, or greenish color spots of variable extension.

4 0

2 years ago