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Mariulka [41]
4 years ago
7

Are SA citizens vaccinated against yellow fever?

Biology
1 answer:
MArishka [77]4 years ago
4 0
SA citizens vaccinated against yellow fever is yes because now we have different vaccinations in each other and created new medicine for the human being.
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Research on laboratory rats suggests that hunger is controlled by the __________.
Afina-wow [57]
The answer is b. hypothalamus.

Hypothalamus is a ventral part of diencephalon. It has many functions including control of hunger, thirst, body temperature, sleep, parenting behaviors, and circadian rhythms.
When an <span>animal </span>is not hungry, and it needs for food are satisfied, is called satiety. There is satiety center responsible for hunger. The center is located in hypothalamus.
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4 years ago
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How can fertilizers used on lawns and fields affect a lake?
iVinArrow [24]
Fertilizers can make their way into water sources when it rains and when the fertilizer makes it into a lake, the harsh chemicals from the fertilizer will pollute the water.
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3 years ago
What are the major classes of lipids​
PolarNik [594]

Answer:

phospholipids, sterols, and triglycerides

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5 0
2 years ago
Is selection more effective against recessive alleles in haploid or diploid organisms?
svet-max [94.6K]
The selection of more effective which is against recessive alleles in haploid organisms than diploid organisms. This is because haploid organisms contain a single set of alleles if a deleterious allele is present in haploid organisms which will produce its effect immediately as there will be no dominant allele which can prevent the expression of the recessive allele as it happens in diploids. Recessive allele will not produce its effect in presence of the dominant allele in the case of heterozygote which is Aa.
Where there is haploid the selection will be more effective when removing recessive alleles in the population. It is the homozygous recessive condition which as aa then the selection will act against recessive alleles.
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3 years ago
What is the difference of cell division in cancerous cells compared to cell division in noncancerous cells?
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Cancerous cell just continue to divide giving rise to mases of cells called tumor.

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