How do you feel about the results of this activity? Were you surprised? Why or why not?
The results of an activity or experiment can either prove or disprove the initial hypothesis. Also, if they disprove the initial idea or hypothesis they are surprising.
In any activity or experiment, the results are always related to the first idea or hypothesis. In this way, the results can:
For example, if the initial idea is "Plants require 10 ml of water to survive" by the end of the experiment you will understant if this is true or if it is false.
Moreover, if the results do not match your initial idea, then they can be classified as revealing and surprising.
Note: This question is incomplete because the activity is not included; however, I answered this question based on general knowledge.
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Answer:
What activity
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Answer:
The genotype of a fly can be determined gray bodied is dominant over black body flies. The possible genotype of a fly is either YY or Yy.
Explanation:
The genotype of a gray bodied fly can be determined with the help of punnett square. The gray bodied fly is crossed with black bodied fly, the original genotype of the fly can be determined. This type of cross is known as test cross.
If the cross results in the formation of all gray bodied progeny, the fly is homozygous dominant with the genotype YY. The cross results in the mixture of progeny with gray and black body , then the genotype of a fly is heterozygous dominant Yy.
Thus, the genotype of a fly can be determined by the test cross. The fly may have genotype either YY or Yy.
b. 2
c. 23
d. 46
e. There is no maximum number.
Answer:
b. 2
Explanation:
Humans have typically 23 pairs of chromosomes. Each pair is composed of a chromosome from the mother and another from the father. A specific locus in a chromosome is composed of two alleles. An allele inherited from the mother and the other allele inherited from the father.
Answer:2
Explanation:
b. polymerase chain reaction
c. homologous recombination
d. Non-homologous end joining
Answer:
Option (a) and (d).
Explanation:
The breaks in DNA molecule may occur due to replication error and oxidizing agent. The double-stranded breaks in DNA can be corrected by Homologous end joining and non homologous end joining.
Homologous end joining is used to repair the DNA present in G2 nad S phases of the cell cycle. The homologous sequences of DNA is used to repair the DNA. Non homologous end joining occurs in the cell present at G0 and G1 phase of the cell cycle. The DNA broken ends are juxtaposed and later rejoin together by DNA ligase.
Thus, the correct answer is option (a) and (d).
Answer:
These fossils indicate that North America must have had a much warmer (i.e a tropical environment 370 million years ago)
Explanation:
Corals are marine animals whose skeletons are easily fossilized and thus have an extensive fossil record. There are many fossils of extinct corals in North America. For example, Lophophyllum is a North American extinct genus of corals dated at 320 million to 290 million years ago (i.e., from the Late Carboniferous period). In general, corals live in warm seawater, and thereby their fossil records can be used as indicators of environmental conditions.
The coral fossils' presence suggests that North America was located near the equator 370 million years ago, within the subtropical climate zones where corals thrive the most.
These seasonal changes in density create growth rings, similar to those found on trees. Scientists can use these rings and other features to determine the climatic conditions during the growing season of the coral.
By comparing the soil and plant and animal evidence at a site, scientists can get a general idea of what the environment was like in the past. By comparing living plant and animal evidence to these ancient remains, scientists can get an idea of what the environments were like.
To learn more about the subtropical climate, refer to the link:
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Answer:
Towards the southern of the sound
Explanation:
As the motion of the source of sound is moving,the percieved sound frequency varies .this is known as Doppler effect.the sound waves emited by the sources tends to bunch up in front of the source and spread out behind the source.
Since the falcon is moving towards the sound,the frequency increases and so does the pitch of the sound