BIOLOGY HIGH SCHOOL

One difference between cell division in plant cells and in animal cells is that plant cells have A)centrioles.
B)centromeres.
C)a cell plate.
D)chromatin

I need also some information/examples about this :)

Answers

Answer 1
Answer: The answer is C) a cell plate

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Rain forests cover just 6 percent of the Earth’s land surface, yet they contain _____ percent of Earth’s species.

Answers

rain forests contain 70 percent of Earth's species.
yes 70% of earths species are in the rain forest

Which of the following affects the intensity of the combustion reaction ifs Bunsen burner ? A.)the temperature in the laboratory B.)the position of the Bunsen burner
C.)the amount of air that mixes with the gas stream

Answers

The amount of oxygen that mixes with the gas stream effects the intensity of the combustion reaction in Bunsen burner. The correct option among all the options that are given in the question is the last option or option "C". The increase in the amount of air mix will result in a flame that has a higher temperature.

Which would provide the body with the most energy?a. Carrying oxygen from the lungs to the cells
b. Breaking the bonds in a disaccharide
c. Breaking a single carbon bond
d. Creating bonds to make a simple sugar

Answers

b. Breaking the bonds in a disaccharide. Disaccharides are sugars, sugars are the body's primary fuel. Starch for example is the complex sugar found in plants, broken down in the body to form glucose which is a great source of energy for the body. When the stomach digests food, the carbohydrate in the food breaks down into another type of sugar.

Answer: B - Breaking the bonds in a disaccharide


Explination: Just took the test.

Punnett square are used to show possible combinations of alleles or to predict the probability of a trait occurring in offspring. A pansy that is homozygous for purple flowers (PP) is crossed with a pansy that is homozygous for pink flowers (pp). Which genotypes will be included for the offspring in the Punnett square for this cross?

Answers

Answer:

The correct answer would be Pp.

The genotype of one parent is PP. Thus, it will produce only one type of allele, that is, P.

Similarly, the genotype of another parent is pp. Thus, it will produce only one type of gamete, that is, p.

The cross would produce offspring with only one type of genotype, that is, heterozygous Pp.

The phenotype of all the offspring will be purple as it is a dominant trait.

When we cross PP x pp we obtain:

Pp + Pp + Pp + Pp (we obtain four identical genotype).

Pp (heterozygote flower) is the Only genotype when we cross two different homozygotes.

The phenotype will be the purple flower since it is the dominant genotype.

___ are flares of electrically charged particles coming off of sunspots

Answers

Answer:

Solar flares

Explanation:

  • The electromagnetic radiations that erupt from the sun and lasts for about a few minutes to a few hours are termed as solar flares.
  • This solar flare travels at the speed of light as it is an electromagnetic wave and thus, its effects are observed immediately as its emission is observed.
  • From the earth, the solar flare looks like a sudden flash of light coming from the sun that has increased brightness.
Solar Flares

Hope this helps! 

____________ are used to build tissues and perform life functions in many organisms.

Answers

The answer is cells.

Cells are used to build tissues and perform life functions in many organisms. The tissue is a group of similar cells working together to perform a specific job. The functional group of multiple tissues is called organ. 
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