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otez555 [7]
3 years ago
10

Describe the following relationships... mutualism commensalism parasitism

Biology
2 answers:
Leto [7]3 years ago
6 0
Mutualism- both species helped
Commensalism- one species helped; one species not affected
Parasitism- one species "parasite" helped; one species "host" harmed
Lena [83]3 years ago
5 0

Answer:

Mutualism: It is the biological interaction between two organisms in which both the organism gets benefit from each other. For example- butterflies take nectar from the plant's flower and spread the pollen to the next flower. So both the individuals gets the benefit from each other.

Commensalism: It is the interaction between two organisms in which one individual is benefitted and other is not harmed not benefitted. For example, remora fish attaches to the body of big fishes to travel so it gets benefitted and big fishes are neither harmed not benefitted by this interaction.

Parasitism: In parasitism, one individual is harmed and another is benefitted. For example, tapeworm is a parasite that gets its nutrition from its host and host gets weaker because of lack of nutrients. So tapeworm is benefitted and the host is harmed.

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Complete question: The chart shows the movement of a ball after several seconds.

Column A is on the x-axis, and Column B is on the y-axis. Which titles should replace A and B?

a. Column A should be “Time,” and Column B should be “Position.”

b. Column A should be “Position,” and Column B should be “Time.”

c. Column A should be “Velocity,” and Column B should be “Speed.”

d. Column A should be “Speed,” and Column B should be “Velocity.”

Answer:

Column A should be "Time," and Column B should be  "Position"

Explanation:

In general, the first column always refers to the x-axis, this is the independent variables. While the second column refers to the y-axis, the dependent variables.

Option A) names Time and Position to the columns. This seems to be correct as time is an independent variable, while the ball position depends on time. The x-axes is named "time", and the Y-axes is named "ball position".

Option B) is not possible because the Position is not the independent variable, and time is not the dependent variable.

Option C) and D) are not possible, as both of them are variables that depend on time.

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laila [671]

Answer: The answer is D mate

Explanation:

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Please help!!!! Grizzly bears and polar bears are very closely related, so much so that they can reproduce to form hybrid offspr
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Scientists believe that at first these bears scavenged seal carcasses that had washed ashore, and gradually began to hunt the seals by waiting at the water's edge as the seals surfaced to breathe. This is believed to be an important step in the evolution of a new bear species, the polar bear

Over time the new polar bears were used to the cold climate and learnt how to fish, they then separated from the grizzly bears, they developed new creatures which would help them survive in one of the most dangerous climate.

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What is the most significant role of homologous recombination in eukaryotes that is not found in prokaryotes? exchange of geneti
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Answer:

The correct answer is "exchange of genetic information between parental chromosomes".

Explanation:

Homologous recombination is a genetic recombination that occurs when two similar or identical molecules of DNA exchange some of its nucleotide sequences. This type of recombination is most widely used for DNA repair purposes, however this is not distinctive of eukaryotes as prokaryotes use it as well. Therefore the most significant an unique role of homologous recombination in eukaryotes is the exchange of genetic information between parental chromosomes. This particular function is known as chromosomal crossover and it is only found in eukaryotes.

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3 years ago
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Answer:

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