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Natali5045456 [20]
3 years ago
14

Because you have always been fascinated by spiders and bacteria, you decide to study the microbiome of a species of spider that

is locally abundant. You are able to cultivate many bacteria from the spiders gut in the lab, and the spiders do not appear to be negatively affected by treatment with antibiotics that you know will inhibit the growth of these bacteria. Based on this evidence, which of the following types of symbiotic relationships do you suspect might be occurring between the spider and the bacteria?
a.Cooperative

b.Mutualistic

c.Commensalistic

d. Ammensalistic
Biology
1 answer:
ira [324]3 years ago
6 0

Answer:

The right answer is c. commensalistic

Explanation:

Commensalism is a type of relationship between two individuals in which one of the individuals becomes benefitted from the other individual and the other individual is not harmed and even not get benefitted from the counterpart.

So, in this case, the bacteria that were living in the spider's gut are benefitted because they got space and environment to live and the spider is not harmed and benefitted because there is no negative effect of presence and absence of bacteria on spider's health which was proved by antibiotic treatment.

Therefore commensalistic relationship might be occurring between spider and the bacteria. So the correct answer is c.

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The human population has changed since it first appeared on earth as The b. population has generally increased, and at rates that have varied over time.

Humans, as well as other populations, have changed since their appearance on earth. Some populations became extinct as they were not able to cope with the environmental changes whereas other became more adaptable and increased in number over time.

The human population has also increased with the passage of time. However, the increase in the rate of the human population was not a stable one. At some times in the past, the population number declined due to environmental factors such as the eruption of a disease etc.

However, with the passage of time, humans have managed to adapt themselves to the changing environmental conditions and their population is increasing rapidly.

Although a part of your question is missing, you might be referring to this question:

The human population has changed in ways that are similar to other populations. How has the human population changed since it first appeared on earth?

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c. The population increases rapidly until it reaches carrying capacity, where it has remained for thousands of years

d. The population increases rapidly until it reaches carrying capacity, and then decreased at a constant rate

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brainly.com/question/24067944

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