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andreyandreev [35.5K]
3 years ago
5

A new disease has recently been discovered in a community, and you have been brought in to investigate. The disease appears to p

ass from one person to another when they shake hands, and it can be cured with antibiotics. What can you say about this disease?
A. It is a fungal disease that is indirectly transmitted.
B. The pathogen replicates without using host cells' replication machinery, and it is directly transmitted.
C. It is a viral disease that is directly transmitted.
D. The pathogen replicates without using host cells' replication machinery, and it is indirectly transmitted.
Biology
1 answer:
inessss [21]3 years ago
6 0

From the options what can be said about this disease is that ( B ) : The Pathogen replicates without using host cells' replication machinery and it is directly transmitted.

Since The new disease transmits from one person to another via handshake that means that the disease is a directly transmitted disease, also given that the disease can be cured with the use of antibiotics shows that the causative agent is not a virus but a bacteria. bacteria are living organisms with their own machinery for self replication, therefore they do not need the host cell to replicate the disease before transmission.

Hence we can conclude that the disease is caused by a Pathogen which replicates without using host cells' replication machinery and it is directly transmitted.

Learn more : brainly.com/question/15514

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Two weeks after a vaginal birth, a client presents with low-grade fever. The client also reports a loss of appetite and low ener
vazorg [7]

Answer: Foul-smelling vaginal discharge

Explanation: an episiotomy infection occurs as a result of a surgical incision through the perineum made to enlarge the vagina and assist in childbirth. Some signs and symptoms of an episiotomy infection include fever and chills, redness, a foul-smelling discharge or bleeding.

7 0
3 years ago
Evidence for the theory of continental drift was first proposed in 1912 by what german scientist?
Aleonysh [2.5K]
Wegener<span> was the first to use the phrase "continental drift" (1912, 1915) (in German "die Verschiebung der Kontinente" – translated into English in 1922) and formally publish the hypothesis that the continents had somehow "drifted" apart.....</span>
7 0
4 years ago
Cell X has a resting potential of -80mV. If a ___________ open and causes the potential to change 10mV, the resulting potential
Dovator [93]

K+ channel opens, resulting potential -90mV

This is due to hyperpolarization.

<h3>What is hyperpolarization?</h3>
  • Hyperpolarization is a change in a cell's membrane potential that makes it more negative (i.e. decreases).
  • It results in increase in the potential difference across the membrane.
  • K+ moves from the inside to outside as some potassium channels remain open and sodium channels reset. A period of increased potassium permeability results in excessive potassium efflux before the potassium channels close.
  • K+ channels typically cause membrane potential to become more negative.

Learn about depolarization here:

brainly.com/question/14692094

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4 0
2 years ago
Measurements of the amount of DNA per nucleus were taken on a large number of cells from a growing fungus. The measured DNA leve
BigorU [14]

Answer:

a) interphase(G2)

Explanation:

<em>The nucleus would contain 6 pg of DNA at the interphase (G2) phase of the cell cycle.</em>

The cell cycle is characterized by tow main phases, namely;

  • The interphase
  • The m phase

The interphase is divided into G0, G1, S, and G2 phase respectively while the m phase is divided into prophase, metaphase, anaphase and telophase respectively.

At the S phase of the interphase specifically, DNA is replicated and the amount of DNA in the cell becomes double.

<u>Hence, a cell whose DNA amount ranges from 3 - 6 pg will have exactly 6 pg after the S phase of the interphase, which is G2 phase.</u>

The correct option id a.

5 0
3 years ago
In the lab, you isolate a chlorella mutant that is unable to switch xanthophyll pigments into the inactive, non-heat-dissipating
REY [17]

Answer:

No, because xanthophyll dissipates absorbed light as heat, and in low light environments, such dissipation would decrease photosynthesis and therefore growth.

Explanation:

Xanthophyll is one of the accessory pigments present in organisms. Being an accessory pigment, the function of xanthophyll is to dissipate the absorbed visible light. Since it dissipates the visible light, the light cannot be used by Chlorella to drive the light-dependent reactions of photosynthesis.

When a mutant Chlorella is grown in the shady region, the dissipation of light by xanthophyll would further reduce the rate of photosynthesis. This mutation is not an adaptive feature in shady regions where the rate of photosynthesis is already lower due to limited availability of light and therefore, would not be favored by natural selection and would not spread to the future generations.

8 0
3 years ago
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