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miss Akunina [59]
3 years ago
12

Bacteria cells have no

Biology
1 answer:
Hunter-Best [27]3 years ago
7 0
Bacteria cells have no *nucleus*

Reason:
Prokaryotic cells lack most organelles, namely the nucleus, which contains genetic information and controls everything that goes on in the cell. Bacteria cells are prokaryotes, which means they do not have many of the organelles that eukaryotic cells have.
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You observe a high proportion of malarial infections in a small village located in Angola. Malaria is caused by the protozoan Pl
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Answer:

<em>B and C.</em>

Explanation:

The epidemiological triangle is an illustration of interaction among suitable hosts, disease agents, and the environment that drives successful outbreak of diseases.

In order to successfully tackle or reduce the incidence of a disease, the triangle has to be broken.

<em>In the case of malaria which is caused by plasmodium but spread through the female anopheles mosquito, one way of breaking the epidemiological triangle is to eliminate female anopheles mosquito in the environment using any possible means. This will stop the spread of the parasite and hence, the disease.</em>

<em>Another way to reduce/prevent malaria is to prevent the vector, female anopheles mosquito from getting to the host, the human populace. This can also be achieved by several possible means.</em>

Relocating the entire village to a neighbouring village might not break the epidemiological triangle as long as female anopheles mosquito still abounds. In the same vein, antibacterial drugs will not help to treat malaria. However, instructing residents on personal protective measures and controlling the vector through chemical larvicides will go a long way in breaking the triangle and reducing the incidence on the malaria disease.

<em>The correct options is B and C.</em>

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Why would a study involving continuous handrail support, oxygen uptake, and heart rate in women during submaximal step treadmill
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The answer is : randomization was not used in sample selection. The major difference between experimental and quasi-experimental designs is lack of randomization in sampling selection.

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