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denpristay [2]
2 years ago
6

Juan and his science class are constructing models of sugar crystals. He wants his model to show how the sugar molecules move in

the crystal. He is using plastic foam balls to represent the sugar molecules. How should he put the plastic foam balls together to make his model? O A. Connect them with stiff springs B. Fill a clear cube with them O C. Glue them together D. Place a few of them in a plastic bag​

Biology
1 answer:
inna [77]2 years ago
4 0

Answer:

The correct answer is option B. "Fill a clear cube with them".

Explanation:

Sugar crystals, colloquially known as "rock candy", are conglomerates of sugar molecules that are formed when sugar-saturated water are cooled. Sugar crystals are arranged in a three dimensional repeating pattern, forming a cube like structure. Therefore, Juan could fill a clear cube with its plastic foam balls to represent sugar crystals. I attached an image of sugar crystals dissolving in water as reference.

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Assume that a particular human cell is examined under a microscope, and it contains 22 autosomes and a Y chromosome. This cell i
frez [133]

Answer:

A sperm cell

Explanation:

A diploid cell has 46 chromosomes which is normally signified by somatic cells. Germ cells or gametes are haploid cells therefore they contain only 23 chromosomes. Male gamete contains 22 autosomes and one sex chromosome. That sex chromosome can be X or Y.

Female gamete does not have Y chromosome as a sex chromosome, it has only X chromosome as a sex chromosome. So Y chromosome in a human cell which have 22 autosomes determines that it is a male gametic cell or a sperm cell. Sperm cells that have a Y chromosome if fuses with female gamete produce male offspring(XY).  

So the correct answer is- a sperm cell.

5 0
2 years ago
Explain how the reproductive strategies of mosquitoes and elephants help them overcome the natural threats of their environments
Gnoma [55]

Mosquitos are an example of organisms with r-reproduction strategy. This means that they tend to overproduce, have many offspring , but do not provide care for them. This happens because those organisms  live in unstable, unpredictable environments, so rapid reproducing is very important. R strategy helps them produce a huge number of offspring, because at least some of them will survive to reproduce.  

Elephants are an example of organisms with k-reproduction strategy, meaning that they have few offspring at a time, take care of them and have a long live span. These organisms occupy more stable environments, usually are stronger, better protected and more energy efficient. Their reproductive strategy is to grow slowly and to produce offspring with high probability of survival.


4 0
2 years ago
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Explain how corn can be used as an example of Mendel's law of independent assortment.
MatroZZZ [7]

Answer:

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The corn can be used to study the law if independent assortment as each kernel of the corn is its fruit. Thus, it is a result of sexual reproduction.

Single corn may contain 800-1000 kernels which may have different shape, texture, structure et cetera as result of independent assortment, that is, each kernel receives alleles of genes independent of each other.

For example, a gene responsible for the texture of kernel would be inherited independently of the gene responsible for the color of the kernel.

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2 years ago
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aleksklad [387]

Answer;

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8 0
2 years ago
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