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4 years ago

Which of the following is a testable hypothesis?

Biology

2 answers:

il63 [147K]4 years ago

7 0

B is the correct answer because none of this that you put are testable.

kupik [55]4 years ago

6 0

Answer:

B. because it's something u can actually do it, and it's more reasonable

Explanation:

an example for a hypothesis could be, If a gets at least 5 hours of sunlight per day, then it will grow. I hope this helps you :)

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Which two human body systems are involved in bringing glucose into the body and then taking it to the individual cells to serve

frez [133]

Answer:

The glucose and the oxygen travel out into the body through the circulatory system to reach cells that need energy. The cells use the glucose and oxygen from the circulatory system for energy production.

6 0

3 years ago

In guinea pigs, dark hair (D) is dominant over light hair (d) and curly hair (C) is dominant over smooth hair (c). Complete a di

Alexxx [7]

P: DdCc    x      DdCc
g:   DC Dc dC dc DC  Dc  dC  dc

1.)

DC    Dc    dC dc

DC DDCC    DDCc DdCC    DdCc
Dc DDCc    DDcc     DdCc     Ddcc
dC DdCC DdCc     ddCC ddCc
dc DdCc Ddcc     ddCc     ddcc

2.)

G= 1:2:2:1:1:4:2:2:1

3.)

F= 9:3:3:1

7 0

4 years ago

Which type of selection tends to increase genetic variation? A. Disruptive selection B. Directional selection C. Stabilizing sel

aliina [53]

Answer:

Which type of selection tends to increase genetic variation? A. Disruptive selection B. Directional selection C. Stabilizing selection

The Answer is option A (Disruptive selection)

Explanation:

Selection can either shift the mean value of a trait, reduce the trait's variation, or increase its variation.

Genetic variation which allows natural selection to increase or decrease frequency of alleles already in the population is a source of phenotypic variation as it refers to differences in all the hereditary information of members of the same species.

Disruptive Selection is important in maintaining variation and initiating speciation as it Increases Variation by favoring alleles corresponding to more extreme phenotypes. But for it to occur, the mean phenotype has to experience the lowest fitness. Disruptive selection affects the frequency distributions of alleles and genotypes within a population.

Disruptive selection is based on the variance of a trait in a population as it increases genetic variance by equalizing the frequencies of existing alleles at polymorphic loci (a genetic loci with two or more alleles). Disruptive selection maintains and may even increase variation in natural populations by favoring extreme phenotypes, individuals with extreme values for a trait have greater reproductive success than individuals with intermediate values.

7 0

4 years ago

Match each underlined word to its correct meaning based on the context of the sentence. Tom had long been picking his way cautio

olasank [31]

Answer:

A. Tom had long been picking his way cautiously through this treacherous forest; stepping from tuft to tuft of rushes and roots, which afforded precarious footholds among deep sloughs. - 3.dangerous.

B. It was a dreary memento of the fierce struggle that had taken place in this last foothold of the Indian warriors. - 4.bleak.

C. He was sulky, however, and would not come to terms: she was to go again with a propitiatory offering, but what it was she forbore to say. - 2.conciliatory.

D. At this propitious time of public distress did Tom Walker set up as a usurer in Boston. - 1.favorable .

Explanation:

The given underlined words in each sentence are-

1. "Precarious" refers to something unstable, unconfirmed, dangerous, uncertain, unreliable. So, when used in the given sentence, it suggests the dangerousness of the foothold that Tom had to depend on.

2. The word "dreary" is also used for something dull, uninteresting, bleak. It is used to describe the banal, cheerless memento of the fight the Indian warriors had given.

3. "Propitiatory" is another word used to describe something that is like a conciliatory offering, a token of appeasement, or trying to please someone or something. In the given sentence, it is used to describe how she will be offering a conciliatory act to him.

4. The word "propitious" is synonymous with something favorable, advantageous, presenting a promising idea. And in its use, the sentence presents how the public distress is favorable for Tom Walker to set up his office.

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3 years ago

The purpose of a business continuity planning session in an organization is to ________.

Mazyrski [523]

I believe that the purpose of business continuity planing session in an organization is to discuss how to return the organization to normal operations as quickly as possible after a data breach. Business continuity planning is the creation of a strategy through the recognition of threats and risks facing a company, with an aim of ensuring that personnel and assets are protected and in a position to function in the event of a disaster.

5 0

4 years ago