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3 years ago

Which of these methods is NOT safe for thawing food?

Biology

2 answers:

Fynjy0 [20]3 years ago

8 0

Answer:

B. Warm the food and hold at 135°F

Explanation:

Keeping food at 135 ° F is not a safe method for defrosting food, as 135 ° F is part of the so-called “danger zone” temperature which is the ideal temperature range to promote the rapid reproduction of microorganisms. That is, if you keep food at this temperature, the proliferation of harmful microorganisms will be very high and these microorganisms could spoil the food or cause food infection in those who eat it.

stellarik [79]3 years ago

3 0

The answer is b
1.Upper Epidermis – The upper surface of a leaf that protects the inner cells of the leaf. 2.Palisade Layer – Long, thin, tightly-packed cells where most photosynthesis takes place. 3. Spongy Layer – Loosely packed cells with many air spaces between them in order to allow carbon dioxide to pass among the cells and get to the chloroplasts. 4. Lower Epidermis – The bottom layer that protects the underside of the leaf and has many openings (stomata)

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What is one of the principal chemical compounds that living things use to store energy

arlik [135]

Answer:

ATP or Adenosine triphosphate is the chief compounds which are used by the living things to store energy.

Explanation:

ATP is the compound that captures the chemical energy released through the degradation of food. It stores the captured energy and releases it at the time of need experienced by the organism.

It is made up of adenine, ribose sugar, and a phosphate group. It is produced in a cell organelle called mitochondria through a process called respiration.

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3 years ago

Which statement best describes the Richter scale?

topjm [15]

The Richter scale is a way of giving the intensity of all earthquakes a numerical value. this allows the strengths of different earthquakes to be compared. Because of this, i think the best answer is D

3 0

3 years ago

Read 2 more answers

In a cell undergoing meiosis, during which stage do the sister chromatids separate from each other?

klemol [59]

Answer:

B.) Anaphase II

Explanation:

In metaphase II, the chromosomes line up individually along the metaphase plate. In anaphase II, the sister chromatids separate and are pulled towards opposite poles of the cell. In telophase II, nuclear membranes form around each set of chromosomes, and the chromosomes decondense.

4 0

3 years ago

If an amoeba engulfs a particle of food does it use energy?

vovangra [49]

Answer:

Endocytosis is a form of active transport hence require enegry powered by ATP. The amoeba needs to change shape and engulf and envaginate the particle and then use vessicle transportation to get the materials into the cell. This requires that the cytoskeleton - composed of tubules and filaments - contracts and relax accordingly. This requires energy by ATPs just like the myosin and actin of muscle.

Phagocytosis, another form of endocytosis, is used by some cells such as immune cells to engulf foreign material and then destroy them by use of lysozymes. This is how phagocytes protect the body from invaders.

8 0

2 years ago

If a population with two alleles is at Hardy-Weinberg equilibrium ad the frequency of one allele is 0.7, what is the heterozygot

Vinil7 [7]

Answer:

B. 0.42

Explanation:

Since the two alleles are at Hardy-Weinberg equilibrium, the sum of the frequency of two alleles will be one. If the frequency of a dominant allele is "p" and that of the recessive allele is "q", then p+q=1

According to the given information, the frequency of one allele in the population is= 0.7

This means that the frequency of the other allele would be= 1-0.7 = 0.3

Frequency of heterozygote in the population =2pq = 2 x 0.7 x 0.3 = 0.42

4 0

3 years ago