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4 years ago

Which options correctly identify a feature of a scientific report that would suggest the report reflects scientific thinking?

Biology

1 answer:

UNO [17]4 years ago

8 0

Answer:

The correct options are:

A. describes how the hypothesis was verified

B. contains arguments that use the data collected

D. uses inductive or deductive reasoning

Explanation:

Option A is correct because it would require scientific thinking to describe how the researcher verified his hypothesis. He would have thought for the different experiments hen needed to prove his hypothesis.

Option B is correct because scientific thinking will be applied to deduce the results of the experiment.

Option D is correct because both inductive and deductive reasoning require scientific thinking.

Option C is not correct because a biased research will only show one aspect of the study favoured by the scientist.

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Some birds in a population have an allele for long beaks and others for short beaks. A drought has caused change in the ecosyste

valentina_108 [34]

The birds with the longer beaks will be fittest in the environment post-drought because they will be able to gather resources (food) hence survive. This will enable these bords to reach reproductive again and pass down the genes. It is important to note that fitness in nature is determined by the capacity to reproduce.

Natural selection will change the allelic frequency such that the allele for long neck will be more in the population while that of short beaks will reduce. This is because short beaks trait will not be able to reach reproductive age (due to starvation) because of the incapacity to gather food resource hence their genes will keep reducing in the subsequent generations.

Natural selection is a natural selective force that acts on a population and results to variation (differential) in the survival of the individuals in the population due to variations in phenotypes in the population. The most successful traits (phenotype that is best suited for the environment) are able to reach reproductive age, find a mate and reproduce hence leave its genes in subsequent generations

5 0

4 years ago

Strawberry DNA Extraction lab What was the purpose of the Sodium Chloride? Include a discussion of polarity and charged particle

lys-0071 [83]

Answer:

Sodium chloride removes proteins from DNA and helps in DNA precipitation.

Explanation:

The Deoxyribonucleic acid (DNA) is negatively charged due to the highly polar phosphate groups that make up the phosphate backbone. The molecules of water are also highly polar and they have positive charge, thereby water molecules interact with the negative charges of the DNA. The sodium chloride generates temporary attraction forces between sodium (positive) ions and the DNA backbone (negative), thereby DNA can be disassociated from the aqueous layer. Moreover, sodium chloride helps to remove proteins (histones) that bound to DNA and also helps to maintain proteins in the aqueous layer.

5 0

3 years ago

How does pollution contribute to global warming?

Tomtit [17]

Answer:

the answer is it forms a barrier that keeps in the suns heat.

Brainliest .

7 0

3 years ago

If grasshoppers were removed from this food web, which organism would suffer the most, the bird or the baboon?

Mashutka [201]

Answer:

If the grasshoppers are removed from this ecosystem the bird will suffer the most.

Explanation:

On the presented food web we can see a food web that is complex and typical for the African savanna. As in all food webs, one organism is important for the survival of another organism or for the survival of numerous organisms. In this case, we have the grasshopper and its importance in the ecosystem, and which animal will be the most affected if it suddenly was not in this ecosystem anymore.

The bird and the baboon both feed on grasshoppers, but there is one big difference, and that is that the grasshoppers are the primary food source of the bird, while the baboon has other food sources as well. This means that with the grasshoppers being out of this ecosystem, the bird will have a very hard time surviving, and if it doesn't adapt quickly enough to feed on something else it will probably go extinct. The baboon, on the other hand, will be affected but not so dramatically as it will continue feeding on the other food sources, though it might suffer some smaller losses in its population.

7 0

3 years ago

Given the following cross TtYyRr x TtyyRr (T = tall; t = short Y = yellow; y = green R = round; r = wrinkled), what proportion o

mihalych1998 [28]

Answer:

3/32 ttyyR-

Explanation:

Cross: Tall, Yellow, Rounded individuals with a tall, green, rounded individual

Parentals) TtYyRr x TtyyRr

Gametes) TYR, TyR, TYr, Tyr, tYR, tyR, tYr, tyr (Parent one)

TyR, TyR, Tyr, Tyr, tyR, tyR, tyr, tyr (Parent two)

We need to know what proportion of offspring is expected to be short plants with round, green seeds. So we need to identify the gametes for these traits. The genotypes are:

Shot → tt
Round → RR or Rr
Green → yy

⇒ Parent one can provide gametes tyR and tyr

⇒ Parent two can provide gametes tyR and tyr

(1/8 tyR x 2/8 tyR) + (1/8 tyR x 2/8 tyr) + (1/8 tyr x 2/8 tyR) =

2/64 ttyyRR + 2/64 ttyyRr + 2/64 ttyyRr =

1/32 ttyyRR + 2/32 ttyyRr =

3/32 ttyyR-

4 0

3 years ago