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Andrei [34K]
2 years ago
15

Did you mean: Mr. Montanari has noticed that there is a wide range of grades that students get on tests, even though they are al

l in the same class. He wonders whether students, who study for 20 minutes per night, every night, get higher scores on tests or not. Mr Montanari wants as many kids to be successful as possible. Pleas help him write a hypothesis about this problem
Biology
2 answers:
ValentinkaMS [17]2 years ago
8 0
I don't know what the is going on here but i'm still a little confused about the idea but i'm still trying for the money
MrRa [10]2 years ago
6 0

Our hypothesis is based on the performance of students in the tests given the amount of time they studied last night before the exam. The testable version of the hypothesis will be whether the students studying 20 minutes per night, every night, get higher scores on the test. To test the hypothesis, Mr. Montanari needs to do a survey of his students to find out the time of study and the duration of study before the examinations. By analysing and interpreting the data, he can either reject or accept the hypothesis. Hypothesis will get rejected:

1.  when there's at least one case where the individual might have not studied before the examination but still managed to score the highest.

2. when there's at least one case where the individual might have studied in the day time but still managed to score the highest.

3. when there's at least one case where the individual might have studied for 20 minutes per night for every night but got an average score in the test.

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why does the presence of 22 large herbivore species at Mpala seem to contradict the competitive exclusion principle Dr. Pringle
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Dr. Pringle suggests that there's only very few large herbivorous species that can survive in certain area. The reason behind his claim is that according to him there will be only enough food for few large species, so there's natural limitations in the food sources, as there should be enough to support them in order for them to survive.

On the other hand, in Mpala, there's 22 large herbivorous species, which directly contradicts Dr. Pringle's hypothesis. The reason why so many large species of herbivores an survive in Mpala and always have enough food for all of them, is that they have all specialized in eating certain types of plants or parts of plants, thus they are not direct competition to one another, and there's always enough food for all of them.

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2 years ago
The small, peglike projections of the tongue's surface are called ________.
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2 years ago
Bacteria with the ability to break down certain types of plastic are placed with a colony of E. coli bacteria that lack this abi
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Answer:

D. Plasmids are nucleic acids which can pass on traits

Explanation:

A Nucleic acid is one of the four biomolecule polymers in living systems. It is made up of monomeric units called Nucleotides. RNA and DNA are the two nucleic acids in existence and they function in storage and expression of genetic information.

According to the question, a colony of bacteria that can break plastics were mixed with the colony that can't break plastics. The two different colonies engage plamids, which conferred the ability to break plastics to some of the colonies that previously couldn't. This tells us that the ability to break plastics in the certain bacteria colony is GENETIC.

If the trait is genetic, the plasmid must be a nucleic acid because of the ability to genetically pass on traits. Note that, a plasmid is an extra-chromosomal DNA (nucleic acid) capable of replicating on its own. Hence, plasmids are nucleic acids which can pass on traits.

8 0
1 year ago
4. The reason that organisms cannot produce populations of unlimited size is that
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The reason that organisms cannot produce populations of unlimited size is that

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B. there is no carrying capacity on Earth

C. species rarely compete with one another

<u>D. the resources of Earth are finite</u>

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2 years ago
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2 years ago
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