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Phantasy [73]
3 years ago
7

According to the basic host–pathogen model of disease, if susceptible and infected individuals are the only types of individuals

in a population, then disease transmission is greatest when susceptible individuals are _______ percent of the population. [Hint: If the density remains the same, when is SI maximized?]
Biology
1 answer:
Anna11 [10]3 years ago
6 0

Answer:

50

Explanation:

Contact occurs from a reservoir to contaminated surfaces or objects, or to vectors such as mosquitoes, flies, mites, fleas, ticks, rodents or dogs, etc. Indirect contact infections spread when an infected person sneezes or coughs, sending infectious droplets into the air.

When 50% of the population are infected, the disease transmission is said to be greatest.

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What is the term for the nucleotide sequences that are removed during mrna processing?
Ne4ueva [31]

The correct answer is: introns

Processing of mRNA is process that occurs only in eukaryotic cells. After the transcription, newly formed mRNA molecule is called and it must be processed into a messenger RNA (mRNA). Processing includes:

• Addition of a 5' cap to the beginning of the RNA

• Polyadenilation- addition of a poly-A tail (tail of A nucleotides) to the end of the RNA

• Splicing- removal of introns and linking the exons

After these steps mRNA is mature and used for the further steps (e.g. translation).

Sometimes some genes are alternatively spliced.

7 0
3 years ago
The building of proteins, or translation, occurs on which number-labeled organelle?
Vsevolod [243]

Answer:

The Ribosome

Explanation:

The Ribosome is made of rRNA and is where translation involving mRNA occurs. This is during the process called Protein Synthesis.

7 0
3 years ago
Read 2 more answers
Question 1:
timama [110]

Answer:

Answer 1= Leafs

Answer 2= Multicellular

#1- The leafs on a plant take in co2 and relese oxygen

#2 Multicellular means that there Multiple cells

Please mark me brainliest if it helps!

8 0
3 years ago
"which list contains only vitamins that do not function as coenzymes in energy metabolism?"
galben [10]
The right answer is: vitamin C and choline
Choline (vitamin B4) is the precursor on the one hand acetylcholine (important neurotransmitter and neuromodulator) and on the other hand, the cascade initiated by betaine (intermediate in the biological methylation and precursor of membrane lipids). In this, it is considered, by extension, as an integral part of the family of B vitamins,
Vitamin C protects against cellular aging, is essential for the immune defenses and increases the assimilation of iron of plant origin. It also contributes to the formation of collagen. Its deficiency leads to a disease called scurvy (hence the ascorbic acid name of vitamin C).
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4 years ago
Which letter on the map represents the location where the most violent hurricanes will form? Explain your choice.
lozanna [386]

Answer:

C

Explanation:

7 0
2 years ago
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