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Charra [1.4K]
4 years ago
5

Which is not be a mechanism through which an infectious disease can emerge?

Biology
1 answer:
Ludmilka [50]4 years ago
7 0
The correct option is A.
An infection disease is a type of disease which a person can acquire as a result of contact with the person who has the disease or as a result of contact with body fluids from that person. Infectious disease can be spread through increased virulence, increased incidence and different portals of entry. A decreased transmissibility reduces the probability of an infectious organism been transmitted.
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Sunlight heats the ground, and the ground warms the nearby air. The warm air expands and rises, while cool air rushes in to take
kati45 [8]
C. Convection.
That is the process you are describing. 
5 0
3 years ago
Why are chloroplasts more on one side of a cell than the other
vaieri [72.5K]

You would be referring to the <em>plant </em>cell.

Answer:

Chloroplasts may be seen on all six sides of a plant cell, which is a three-dimensional entity with typically moderately rounded corners (not in the centre because a big central vacuole fills a very large part of the volume). Chloroplasts are constantly being rearranged by the cell since they are not set in place. Chloroplasts are typically located close to so-called periclinal cell walls, which are oriented in the same 2D orientation as the leaf surface under low light. Chloroplasts seem to "escape" to the anticlinal walls in bright light. Better light harvesting in low light by exposing every chloroplast to light and photoprotection by mutual shading in strong light are likely the fitness benefits provided by this behavior. In the dark, chloroplasts also gravitate toward the anticlinal walls. Thin leaves of submerged aquatic plants like Elodea can be used as microscope specimens to observe chloroplast motions. One can gauge how much light gets through a leaf in land plants. What I just said concerning the top layer(s) of leaves' "palisade parenchyma cells" is accurate. Most of the chloroplasts are found in these cells. Numerous cells in the spongy parenchyma under the palisade layer lack well marked peri and anticlinal walls.

<h2>How did plant cells incorporate chloroplasts in their DNA?</h2>

Chloroplasts must reproduce in a manner akin to that of some bacterial species, in which the chloroplast DNA is duplicated first, followed by binary fission of the organelle (a kind of protein band that constricts so that two daughter organelles bud off). As a result of some chloroplast DNA actually being integrated into the plant genome (a process known as endosymbiotic gene transfer), it is now controlled in the nucleus of the plant cell itself.

8 0
2 years ago
Maribel places her backpack and lunch bag on a lab table where there are lab materials. What is the safest way for Maribel to ar
Veronika [31]

Answer:

she should arrange them away from lab materials. She could put them to the side or under the table

Explanation:

3 0
3 years ago
Is plasma membrane the same as phospholipid bilayer?.
Crazy boy [7]

Answer:

Like all other cellular membranes, the plasma membrane consists of both lipids and proteins. The fundamental structure of the membrane is the phospholipid bilayer, which forms a stable barrier between two aqueous compartments.

Request: Please mark me as the Brainliest.

3 0
3 years ago
The hardy-weinberg principle states that _____ in a population do not change unless outside factors affect the gene pool.
Reika [66]

Answer;

-Allele frequencies

The hardy-weinberg principle states that allele frequencies in a population do not change unless outside factors affect the gene pool.

Explanation;

Hardy-Weinberg principle  is a mathematical model that describes how genotype frequencies are established in sexually reproducing organisms.

The Hardy-Weinberg equilibrium is a principle stating that the genetic variation in a population will remain constant from one generation to the next in the absence of disturbing factors. The Hardy-Weinberg equilibrium can be disturbed by a number of forces, including mutations, natural selection, nonrandom mating, genetic drift, and gene flow.

6 0
3 years ago
Read 2 more answers
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