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3 years ago

One of the major advances in brain function in middle childhood is the development of:

1 answer:

4 0

The middle childhood is the period between ages 7 and 11.
One of the major advances in brain function in middle childhood is the development of automatization. Children this age can master plenty of skills with a little motivation and a lot of practice.
They also immerse themselves in play and it is important for them to get a lot of healthy, physical activity.

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Which sources of nutrient pollution are mentioned and shown in the video? Check all that apply.

yarga [219]

Answer:

Farms

laundry detergents

pet wastes

Water treatment plants

Explanation:

Because its not construction materials or mining wastes.

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3 years ago

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The drastic reduction in genetic variation that results when a new, isolated population is established by a very small number of

mash [69]

In drastic reduction, what is being described above is the process called the founder effect. The founder effect is also the other term called in which it applies the definition above. This is made when a population has been created with the means of having small numbers and not too many individuals.

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2 years ago

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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)

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3 years ago

Which statement provides an example of epigenetics A. Genetic mutations arising every other generation B. Selective breeding of

irina [24]

Answer: d. mothering style affecting the developing brain

Explanation:

Epigenetics is the study of features or "phenotypes" which do not involve changes in the DNA sequence. Epigenetics is about how genes are expressed and used instead of the DNA sequence of the genes themselves.

The behaviour of a person's genes depends not only on the DNA sequence of the genes, but also on so-called epigenetic factors. Effects on genes from the external environment can affect disease, and some of these effects can be inherited in humans.

So, Mothering style which affects the brain development is an exampe of epigenetics which do not show any genetic feature.

Hence, the correct option is d.

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2 years ago

Plants use their ________________ to make glucose and their __________________ to break the glucose down to obtain ATP.

Arada [10]

Answer: Plants use their photosynthesis to make glucose and their chloroplast to break the glucose down to obtain ATP.

Explanation:

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3 years ago