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3 years ago

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What is the sac that must surround something before it can be actively transported across a membrane? A. Centrosome B. Chloropla

st C. Ribosome D. Vesicle

2 answers:

Nata [24]3 years ago

5 0

Pretty sure it's D.

jonny [76]3 years ago

3 0

A membranous sac that surrounds something before it is actively transported across a membrane is called a Vesicle.

The solution is D.

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Suggest appropriate sources of food to meet their requirements for a Newborn baby and child aged 6.

pashok25 [27]

Explanation:

Calcium . Helps build strong bones and teeth.

Fat. Creates energy, helps the brain develop, keeps skin and hair healthy, and protects against infections.

Folate. Helps cells divide.

Iron. Builds blood cells, and helps the brain develop. Breast-fed babies should receive iron supplements.

Protein and carbohydrates. They provide energy and fuel growth.

Zinc. Helps the cells grow and repair themselves

Your baby also needs vitamins such as:

Vitamin A. Keeps skin, hair, vision, and the immune system healthy.

Vitamin B1 (thiamine). Helps the body turn food into energy.

Vitamin B2 (riboflavin). Helps the body turn food into energy, and protects cells from damage.

Vitamin B3 (niacin). Helps the body turn food into energy and use fats and protein.

Vitamin B6. Keeps the brain and immune system healthy.

Vitamin B12. Keeps nerve and blood cells healthy, and makes DNA -- the genetic material in every cell.

Vitamin C. Protects against infections, builds bones and muscles, and helps wounds heal.

Vitamin D. Helps the body absorb calcium from food, and keeps bones and teeth healthy. Breast-fed babies may need a D supplement.

Vitamin E. Protects cells from damage, and strengthens the immune system.

Vitamin K. Helps the blood to clot.

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8 0

3 years ago

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Fill in the blank<br> ___diffision involves transport proteins

stellarik [79]

Answer:

Facilitated diffusion involves transport protein

Explanation:

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3 years ago

Which of the following biomolecules is best represented by this formula?

Alona [7]

Answer:

The correct answer is option D. "lipid".

Explanation:

Lipids, known also as fats or oils, are organic compounds that are insoluble in water and are made up of carbon, hydrogen, and oxygen. The formula of this question shows a biomolecule that is made up of this three atoms, and even though carbohydrate are made up of this three atoms as well, we can determine that it belongs to a lipid because it contains many more hydrogen atoms than oxygen atoms. Other characteristic of lipids is their long chains of carbon and hydrogen atoms, which are represented by the lines shown in blue. I attached the missing formula.

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Which indicates how evidence of climate change supports the theory of continental drift?

beks73 [17]

Glacial evidence discovered in South America demonstrates how climate change evidence has bolstered the notion of continental drift. Folded mountains in Africa and South America. Thus, the correct option is D.

Climate change is happening all across the planet on a daily basis. This is primarily due to human activities that have had an impact on the atmosphere and the earth.

<h3>What is continental drift?</h3>

Continental drift is basically the hypothesis that the continents once constituted a single landmass, disintegrated, and drifted to their current places.

The discovery of glacial evidence in South America has led to a greater acceptance of the continental drift idea.

Finally, we can conclude that glacial evidence discovered in South America demonstrates how climatic change evidence supports the hypothesis of continental drift.

For more information regarding continental drift, visit:

brainly.com/question/974409

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2 years ago

The map shows the distribution of wild boars in the United States. Wild boars are an invasive species to the United States. mc02

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Wild boars were brought to the United States by humans.Wild boars have quickly spread through the United States.Wild boars have established successfully in areas with warm climates.<span>Wild boars have a high reproductive rate and no natural predators. the answer is (c)

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4 years ago

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