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Feliz [49]
3 years ago
7

21. What macromolecule is broken down by microflora, but not humans, and helps clean out

Biology
1 answer:
Yuliya22 [10]3 years ago
3 0

Answer:

cellulose

Explanation:

humans do not produce the enzyme necessary to break down cellulose.

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17. Which of the following is an acid?
jeka94

Explanation:

c is an acid I think but it may not be right

3 0
3 years ago
Read 2 more answers
Which phylum is a group of miscellaneous fungi that don’t fit into the other three categories? Zygomycotes Deuteromycotes Ascomy
DaniilM [7]

Answer:

Deuteromycotes

Explanation:

Kingdom Fungi consist of eukaryotic organisms grouped into 3 phyla, with one group that doesn't fit into any of the grouped three. Each group of fungi were classified into phylum based on their reproductive life cycle. The three phyla are Zygomycotes, Ascomycotes, Basidiomycotes.

Zygomycotes produce their spores by meiosis in a structure called Zygosporangium. Ascomycotes produce their spores via meiosis in ascus (sac-like). Basidiomycotes produce their own spores via meiosis in club-like basidium.

However, a fourth group exists that has no known sexual reproductive structure (meiospores), instead it is known to reproduce asexually via mitospores. This group is called DEUTEROMYCOTES or commonly known as FUNGI IMPERFECTI. It is a group of miscellaneous fungi that doesn't fit into the classification basis of the other three phyla.

3 0
3 years ago
"What is true of the breakdown of polymers inside living cells?" A. It is energetically unfavorable. B. It is associated with a
jek_recluse [69]

Answer:  B. It is associated with a negative change in free energy.

Explanation:

<u>A polymer is an organic compose made of many simple molecules </u>that are repeating structural units called monomers. Examples of polymers are DNA, lipids, carbohydrates and proteins.

Polymers are broken down into monomers in a process known as hydrolysis, which is a reaction that splits the bond between monomers. During these reactions, the polymer is broken into many components.

This process of breakdown is called catabolic reactions, which, as it was said, is the break down of larger molecules into smaller molecules through the hydrolysis of its bonds. <u>This reaction releases energy which was found in the bond between this monomers.</u> And, when energy is released, there is a negative change in free energy. This means there is more free energy available for the cell to be used.

4 0
4 years ago
Angiosperms may self-fertilize if pollen from a flower is transferred to egg cells in the same flower, or they may cross-fertili
cricket20 [7]

Answer: Pollination, the transfer of pollen from flower-to-flower in angiosperms or cone -to-cone in gymnosperms, takes place through self-pollination or cross-pollination.

Cross-pollination is the most advantageous of the two types of pollination since it provides species with greater genetic diversity.

Maturation of pollen and ovaries at different times and heterostyly are methods plants have developed to avoid self-pollination.

The placement of male and female flowers on separate plants or different parts of the plant are also barriers to self-pollination.

8 0
3 years ago
A family has a new closet built in one of their bedrooms. Soon, the person who sleeps in that room complains of sore throat, bur
Stolb23 [73]

Based on the symptoms, the most likely cause of the problem is formaldehyde used in the building materials.

<h3>What is formaldehyde?</h3>

Formaldehyde is a chemical substance which is used as. preservative of wood and building materials.

It us also present in binders and adhesives.

Exposure to formaldehyde produces adverse effects such as;

  • watery eyes
  • burning sensations in the eyes, nose, and throat
  • nausea and
  • skin irritation, etc.

Therefore, based on the symptoms, the most likely cause of the problem is formaldehyde used in the building materials.

Learn more about formaldehyde at: brainly.com/question/14798580

7 0
3 years ago
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