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3 years ago

PlS HELP 30 POINTS FOR BRAINLIEST!!!!!!!!!!!!!!!!!!

Biology

1 answer:

olga_2 [115]3 years ago

3 0

Answer:

It's a little difficult to see the difference between the finch 1 and finch 2 population lines, but their trends should match those of the food. This answer is assuming the finch 1 population aligns with the seeds line and the finch two population lines up with the fruit line: The finch 1 population has a beak adapted to eating seeds and the finch 2 population has a beak better adapted to eating fruit

Explanation:

Since we are given data for both the food source and the finch population, the answer will most likely reflect that. Therefore eliminating choices A (disease) and C (feathers). Again, this answer is assuming the finch 1 population aligns with the seeds line and the finch two population lines up with the fruit line. The lines for the finch population will match with the availability of food, so less seeds mean less finch 1 and when the amount of seeds rise up you can see the population of finch 1 also rises.

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A point mutation is shown in the mutated DNA sequence below. Will this mutation affect the

klemol [59]

Answer:

A. Yes, because an amino acid change has occurred.

Explanation:

The sequence given states that the codon CCG is changed to CAG. According to the codon table (attached), CCG codes for proline whereas CAG codes for Glutamine. Therefore, change in mutation has resulted into the change in amino acid. This would lead to the formation of a different protein.

8 0

3 years ago

First to comment gets brainliest

NikAS [45]

Answer:

Explanation:

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3 years ago

The innermost serous membrane covering the heart is the: Group of answer choices synovial layer peritoneum visceral pleura visce

stepan [7]

Answer:

There are innermost serious membranes that cover the heart is Parietal Pericardium.

Explanation:

Heart is covered by pericardium in two sides, inner and outer sides. The inner membrane is parietal pericardium and the outer one is visceral pericardium. Pericardium is made up of fiber tissues that strongly protect the heart from all around.

The main function of pericardium is to protect the heart from any injuries and prevent the infections. The serious pericardium helps in lubricating the heart.

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3 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

3 years ago

In an experimental set up, starch is placed in dialysis tubing and suspended in water. When lodine is added to the water, over t

Anettt [7]

Answer:

c. The starch stayed in the bag and the iodine leaked into the bag and the reacted with it, turning the solution black.

Explanation:

According to the given information, the solution inside the dialysis tubing has starch while water present outside has iodine. The color of the water present outside the dialysis tubing does not change which means that starch did not leak out of the bag and stayed in the bag itself. On the other hand, the starch solution present inside the bag turned black representing the fact that iodine entered the bag. The reaction of starch with iodine produces a blue-black color.

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3 years ago

PlS HELP 30 POINTS FOR BRAINLIEST!!!!!!!!!!!!!!!!!!​

PlS HELP 30 POINTS FOR BRAINLIEST!!!!!!!!!!!!!!!!!!