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galina1969 [7]
2 years ago
14

A microbiologist identifies a bacterium that is capable of degrading cellulose, lignin, chitin, latex, aromatic chemicals, and k

eratin. It produces metabolic byproducts that give soil a musty smell as well as some that can be used as antibiotics. Which of the following genera is being described?
a. Campylobacter.
b. Streptomyces.
c. Neisseria.
d. Pseudomonas.
Biology
1 answer:
Sauron [17]2 years ago
5 0
The answer is B. Streptomyces
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How do terrestrial animals excrete carbon dioxide? pls answer asap
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Sorry for the other guy. He was rude. Here's the answer:

Animals excrete CO2 by cellular respiration. Since any living things besides plants can't break down CO2, it just gets put back into the environment. I hope I helped you :)

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The bases are paired by____ bonds along the axis of the molecule
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Answer:

<em>T</em><em>h</em><em>e bases are paired by</em><em> </em><em><u>hydrogen</u></em><em><u> </u></em><em>bonds along the axis of the molecule</em><em>.</em>

Explanation:

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Mandarinka [93]

Answer:

The organism selected based on sexual reproduction is tortoise and based on asexual reproduction is hydra. Both of them are explained in detail below with diagrams.

Explanation:

Tortoise: These are land dwelling reptiles and have a hard shell on their back to protect from predators. They can pull their necks inside for protection. They are different from turtles which as aquatic in nature. They mostly sleep at night and are active during day. These organisms prefer to stay isolated and are not comfortable in crowds.Tortoises have very long life span that between 80-150 years with the oldest one being 255 years.

Sexual reproduction- In most cases, females tend to be larger in size than males. They reproduce sexually by laying eggs at night. Their gametes are haploid in nature which when fused result in a diploid organism. The number of chromosome in a tortoise is 52.

The tortoise eggs can remain fertile till four years after fertilization. One single mating allows 30 eggs to be fertilized. Once the female finds the right environmental conditions, the eggs are laid.

Advantage of sexual mode of reproduction:

  • Offspring produced have <em>genetic variation</em>.
  • This genetic variation allows them to adapt well to the surrounding.
  • All the offspring don not die of a single disease because they are genetically varied.

Disadvantages: Fewer organisms are produced.

                          Gap between mating season.

Hydra is a fresh water organism belonging to class Cnidaria. It's body has a radial symmetry. The body contains stinging cells known as cnidocytes, which contain <em>neurotoxins</em>. These are released when faced by a predator. Its body is made up of two layers-epidermis and gastrodermis.

If a hydra is cut in half, both the cut parts regenerate into two new hydra. Their mode of reproduction is asexual through the process of budding. a

A new bud arises in some part of the body of hydra which matures and breaks off to form a new hydra. Most hydra are fixed or senile but some of them are free moving.

Advantages of asexual reproduction:

  • The population <em>multiplies</em> rapidly in favorable conditions.
  • Single parent is needed.
  • It's <em>faster</em> than sexual reproduction.

Disadvantages of asexual reproduction:

  • <em>Limited diversity</em>
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6 0
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Answer:

A peptide bond is a covalent bond formed between two amino acids. Living organisms use peptide bonds to form long chains of amino acids, known as proteins. Proteins are used in many roles including structural support, catalyzing important reactions, and recognizing molecules in the environment. A peptide bond is therefore the basis of most biological reactions. Forming peptide bonds is a requirement for all life, and the process is very similar in all forms of life.

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C) it regulates what goes in and out of the cell
Usually the membrane is the organelles that acts like a door. They decide what type of nutrients and molecules go into the cell.
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