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2 years ago

How can people kill harmful bacteria that might live in some human food

2 answers:

8 0

By storing food in the proper temperature (room temperature or fridge/ freezer) and cooking foods (such as meat) properly and fully.

Veseljchak [2.6K]2 years ago

3 0

One effective way to kill most bacteria in food is to cook it using high temperatures, so the bacteria will die.

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Wheat production W in a given year depends on the average temperature T and the annual rainfall R. Scientists estimate that the

Nimfa-mama [501]

Answer:

-1.1

Explanation:

Data provided in the question:

Average temperature is rising at a rate, $\frac{dT}{dt}$ = 0.15°C/year

Rate of change rainfall, $\frac{dR}{dt}$ = - 0.1 cm/year

$\frac{\delta W}{\delta T}$ = -2

$\frac{\delta W}{\delta R}$ = 8

Now,

we need to calculate $\frac{dW}{dt}$

since,

The wheat production (W) is dependent on the rainfall (R) and the Temperature (T)

thus, Using the chain rule , we have

$\frac{dW}{dt}$ = $\frac{\delta W}{dT}\times\frac{dT}{dt}$ + $\frac{\delta W}{dR}\times\frac{dR}{dt}$

on substituting the respective values, we get

$\frac{dW}{dt}$ = -2 × 0.15 + 8 × (-0.1)

$\frac{dW}{dt}$ = -0.3 - 0.8

$\frac{dW}{dt}$ = -1.1

3 0

2 years ago

Which of the following statements about genes is incorrect? a. During fertilization, both the sperm and the ovum contribute gene

Illusion [34]

Answer:

d. Under normal circumstances, each chromosome contains precisely one gene.

Explanation:

The gene is a segment of a DNA molecule, responsible for genetically inherited traits. Each gene consists of a specific DNA sequence that contains a code (instructions) to produce a protein that performs a specific function in the body. Each human cell has about 25,000 genes.

The genes are located within the chromosomes. A chromosome can house thousands of genes, it is not normal for a chromosome to house a gene or a few units. Thus, if a cell contains 46 chromosomes, that cell has an incalculable number of genes.

4 0

3 years ago

Read 2 more answers

Use the following information to answer the question.

arsen [322]

The correct answer is option B.

This shows commensalistic relationship.

What is commensalism?

Commensalism is a biological relationship (symbiosis) in which individuals of one species profit, while those of the other species suffer neither advantages nor disadvantages.

This is in contrast to parasitism, which is related to parasitism in that the parasitoid has a free-living state and eventually kills its host rather than just damaging it, amensalism, where one is damaged while the other is unaffected, and parasitism, where one is harmed and the other benefits.

The host species, which is largely unharmed, may provide nourishment, shelter, support, or means of mobility for the commensal.

To learn more about commensalism click the given link

brainly.com/question/16712707

#SPJ4

5 0

1 year ago

Which of the following is not true of lymphatic capillaries?

lidiya [134]

Answer: D: They are closed at one end

Explanation:

"Lymphatic Capillaries" are tiny, thin walled microvessels located in spaces between cells and their main function is to drain and process extracellular fluid.

They are larger than blood capillaries and have "closed ends". Their unique structure permits interstitial fluid to flow into them but not out. Thus their ends are closed unlike the loop structure of blood capillaries.

6 0

2 years ago

PLEASE ANSWER FAST I NEED ANSWER

horrorfan [7]

Answer:

<em>B</em>

Ovulation happens about 14 days before your period starts. If your average menstrual cycle is 28 days, you ovulate around day 14, and your most fertile days are days 12, 13 and 14

3 0

2 years ago