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3 years ago

Why are bacteria important to the environment? Select all that apply.

1 answer:

6 0

I believe the answer is b. decomposition adds to the soils nutrients, therefore creating the environment of plant growth which gives off o2.

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True or False Water moves from an area of low water concentration to an area of high water concentration.

Aneli [31]

Answer:

False

Explanation:

It is true that water moves from an area of higher water concentration to an area of lower concentration.

Based on osmotic pressure, water always moves from an area of higher concentration to that of lower concentration.

Osmosis of water and liquids is made possible across a concentration gradient.
Water is driven from one place to another via concentration gradient.

3 0

3 years ago

7. Why is approximately 50% of any individual's DNA inherited from that individual's father?

Strike441 [17]

Answer:

B. It was passed to the individual by a gamete from the father.

Explanation:

DNA is transferred to the next generation via gametes, which are produced during meiosis. During meiosis, half of the genetic material is transferred from parent cell to their gametes. Therefore, among the given options, only B is correct.

Option A is not correct because it talks about somatic cells; whereas, in somatic cells, genetic material is not transferred half rather duplicate first and then a complete duplicated set of genetic material is transferred.

Option C is also not correct because only one gamete (sperm) fertilizes the egg. Hence, not half of his cells descend from father gamete. Similarly, option D is also incorrect because it is not possible to descend half of the nuclei from the father to the offspring.

4 0

3 years ago

What best describes the physical and chemical digestion of food

Evgesh-ka [11]

Physical Digestion - Physically breaking down (eg chewing)
Chemical digestion - chemically breaking down (eg chemicals in the stomach)

6 0

4 years ago

Three patterns of inheritance in humans include

Vlad1618 [11]

Answer:

Patterns of inheritance in humans include:

Autosomal dominant or recessive inheritance

X-linked dominant or recessive inheritance

Mitochondrial inheritance

Y-linked

Explanation:

Mitochondrial inheritance is the type of inheritance which arises from the mothers only. A person tends to inherit its mitochondrial DNA only from the mother and not from the father.

Autosomal inheritance is the pattern of inheritance seen by the alleles of genes present on the autosomal chromosomes.

X- linked inheritance is the pattern of inheritance depicted by the genes on the X chromosomes.

Y-linked inheritance is attributed to the pattern of inheritance depicted by the genes on the Y- chromosomes. However, very few genes are present on this chromosome.

3 0

3 years ago

Read 2 more answers

What is intangible senses? Give some examples..

zepelin [54]

Answer:

Something that can't be perceived my you senses. (you maybe can't smells it, or taste it, or etc.) it doesn't have a physical presence.

4 0

3 years ago