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Step2247 [10]
3 years ago
10

A hypothetical bacterium swims among human intestinal contents until it finds a suitable location on the intestinal lining. It a

dheres to the intestinal lining using a feature that also protects it from phagocytes, bacteriophages, and dehydration. Fecal matter from a human in whose intestine this bacterium lives can spread the bacterium, even after being mixed with water and boiled. The bacterium is not susceptible to the penicillin family of antibiotics. It contains no plasmids and relatively little peptidoglycan. This bacterium's ability to survive in a human who is taking penicillin pills may be due to the presence of _____. 1. penicillin-resistance genes 2. a secretory system that removes penicillin from the cell 3. a Gram-positive cell wall 4. a Gram-negative cell wall 5. an endospore
Biology
1 answer:
Licemer1 [7]3 years ago
5 0
<h2>Answer is option "2,4 & 5"</h2>

Explanation:

  • An endospore is an extremely resistant dormant cell structure delivered by some bacterial species. On the off chance that you separate the term endospore, 'endo-' signifies 'inside' and '- spore' alludes to the 'torpid structure,' so the endospore is a structure shaped inside the cell. There are numerous instances of endospore-shaping microorganisms. The two most normal are Clostridium and Bacillus. In great conditions, these microorganisms are effectively developing and separating cells
  • On the off chance that a supplement, for example, carbon or nitrogen, turns out to be rare or if the populace turns out to be excessively thick, the microorganisms can get focused. They will enter a balance stage, which is their likeness endurance mode. The microorganisms can make due in the balance until better development conditions return
  • Hence, the right answer is option "2,4 & 5"

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After the two avian kidneys do their work, a bird will excrete nitrogenous waste known as _____________ from the blood.
Ludmilka [50]

The avian kidneys are divided into units called lobules and as the two avian kidneys of birds do their work or function, most of these birds excrete nitrogenous waste known as uric acid from the blood, which reduces water loss but requires more metabolic energy to produce nitrogenous waste.

6 0
4 years ago
What is the allele frequency?
navik [9.2K]

Allele frequency:
Number of times an allele occurs in a gene pool compared with the number of alleles in that pool for the same gene
7 0
3 years ago
A recent study of the marine hawksbill turtle's stomach contents revealed that sponges constitute a major portion of their diet.
bearhunter [10]

Answer:

These structures that protect the sponges from most predators, but not turtles, are spicules.

Explanation:

Sponges <em>skeleton</em> is composed of <em>calcium carbonate and siliceous</em> micro-structures called <u>spicules</u>. Their morphology is so varied that it is used in taxonomy for identification and classification.

There are different kinds of spicules:

-         <em>Monoaxonic spicule</em>: needle-shaped, straights or curves

-         <em>Tetraxonic spicules:</em> they have four prolongations

-         <em>Triaxonic or Hexaxonic spicules</em>

-         <em>Poliaxonic spicules </em>

Two terms can be applied to any of these spicules kinds:

-         <em>Megaspicules</em>: They are elongated and compose the main architecture of the sponge skeleton

-         <em>Microspicules</em>: Variable in shape and size, with ancillary functions

Sponges have few predators thank to the spicule structures and their high toxicity. Many of them are capable of perforating soft tissues and producing urticant substances.

6 0
3 years ago
The treatment phase for substance abuse generally consists of:
Schach [20]

Answer:

D. All of these are correct.

Explanation:

Depending on the institution, substance-abuse treatments may vary in regard to duration and phases. Generally, treatments for substance abuse consist of four phases:

  1. Initiation: This first stage focuses on providing helpful information to the person/patient about all treatments and options. <u>During this phase, the person goes through a process of </u><u>detoxification</u><u>, that is, preventing them from using the drug to remove their dependence.</u>
  2. Abstinence - first phase: This stage is one of the most difficult ones as the person usually exhibits a variety of emotions associated with depression, sadness, anxiety because of the withdrawal of the drug. <u>During this phase, they received psychological help to prevent any relapse and to </u><u>become more stable</u><u>, that is, to </u><u>control drug cravings.</u>
  3. Abstinence - second phase: This stage is focused on<u> maintaining abstinence and stability</u>. In conjunction with the second phase, this is also difficult but rewarding. The person receives behavioral therapy so he/she can acknowledge how the drug intake resulted in numerous issues and, in contrast, stopping its use can change her/his life in a diversity of positive ways.
  4. Aftercare: This stage focuses on long-term goals and, through therapy and counselling, <u>helps the person to </u><u>obtain education, find a job</u><u>, and </u><u>continue their stability and abstinence.</u>
7 0
3 years ago
Which food molecules would you eat if you wanted to grow strong nails and if you haven’t eaten in days
kicyunya [14]

Answer:

You would have to eat protien and healthy stuff for you to grow and for your nails all you have to do is let it grow in its own way do not cut it you just have to clean it.

Explanation:

7 0
3 years ago
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