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Leya [2.2K]
3 years ago
14

Students were studying a graph showing the phase changes of a substance. The graph is shown below. Which statement best describe

s the data shown?
Biology
1 answer:
krok68 [10]3 years ago
7 0

Answer:C

Explanation:P shows a increase of kinetic energy and a phase change from solid to liquid

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The reaction rate of a chemical reaction was measured with and without an enzyme. Which line is the reaction with an enzyme?
trasher [3.6K]

line A is the answer because enzymes act as catalyst for chemicals reactions which means that they help speed up the production of products from a chemical reaction

3 0
3 years ago
Read 2 more answers
While doing research on deep-sea vents, you discover a very simple new life form. After some initial analysis, you find that thi
bagirrra123 [75]

Answer:

The one treated with DNase and protease

Explanation:

<em>The samples that will transform yellow into purple if RNA is the genetic material are the ones treated with </em><em>DNase </em><em>and </em><em>protease</em><em> respectively.</em>

<u>The treatment of the heat-killed sample of the purple life with DNase will ensure that the DNA in the sample becomes degraded while treatment with protease will ensure that protein is degraded, leaving only the RNA. Thus, the RNA can be taken up by the yellow life form and become transformed into purple if indeed RNA is the genetic material.</u>

The sample treated with RNase cannot transform the yellow life into purple because the RNase catalyzes the degradation of RNA into smaller components.

3 0
3 years ago
Explain Mendel's law of independent assortment and how the 9:3:3:1 phenotypic ratio among the F2 of a dihybrid cross provides ev
GrogVix [38]

Answer:

Explanation:

Mendel's law of independent assortment state that two different genes assort independently in gamete formation.

To reach this conclusion, one has to do a dihybrid cross. This means that two genes responsible for different traits need to be analyzed at the same time.

1) Starting with a <u>parental generation of a cross between two pure lines</u> (homozygous for both genes) <u>with different traits</u>, a plant with yellow and round seeds (YYRR) and another with green and wrinkled seeds (yyrr). <u>The F1 will be phenotypically homogeneous (</u>yellow and round)<u>, and genotypically heterozygous (</u><u>YyRr</u><u>)</u>.

2) If the individuals from the F1 are crossed with one another,  we have to do a Punnett Square to determine the phenotypic ratio of the F2.

  • If the genes assort independently, the F1 individuals will produce their different gametes with the same probability. Each possible gamete will appear in a 1/4 proportion: YR, Yr, yR, yr.
  • The 9:3:3:1 ratio is a result of analyzing the possible phenotypes that result from the dihybrid cross.

See the attached image for an illustration of the crosses in each generation and the Punnett Square.

4 0
3 years ago
What would happen if Jupiter's gravitational pull increased
kirill115 [55]

Answer:

The amount of mass that planet Jupiter has in the solar system makes it approximately five times larger than all other planets in it. As Jupiter’s gravity pulled on another planet tightly, its diameter grew and it expanded. The density and gravity continued to increase, resulting in even more planet compression.

Explanation:

6 0
2 years ago
How are the processes of natural selection and artificial selection similar? How are they different?
Charra [1.4K]
<span>Artificial and natural selection are really the same process but one is driven by man and the other is driven by an organism's traits that allow them to survive and reproduce. Artificial selection is when mankind chooses certain traits in plants and animals and breeds to enhance that trait.</span>
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3 years ago
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