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avanturin [10]
3 years ago
7

Why do parasitic flatworm not need a digestive system

Biology
1 answer:
Natali [406]3 years ago
3 0
Parasitic Flatworms do not have a digestive system because they do not need to digest there food. They just suck in nutrients already digested by the host they are in.
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Objective has the largest depth of field.
TiliK225 [7]

Answer:

The correct answer is option - C. low power objective.

Explanation:

In microscopes, low power objectives have a wide field of view and use to study the many smaller specimens or large specimens. 10X is the power of the low objective.

To study the depth of the field the lower objective rotated and aligned on the place over the specimen. When you move to high power objective the field of view gets close in and only can study the smaller specimen or small section of a large specimen.

Thus, the correct answer is option - C. low power objectives.

5 0
4 years ago
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What are stem cells?
Effectus [21]

Answer:

Stem cells are cells with the potential to develop into many different types of cells in the body. They serve as a repair system for the body. There are two main types of stem cells: embryonic stem cells and adult stem cells

Explanation:

Totipotent (or Omnipotent) Stem Cells.

Pluripotent Stem Cells.

Multipotent Stem Cells.

Oligopotent Stem Cells.

Unipotent Stem Cells.

5 0
3 years ago
Largest single organ; cleans out poisons in blood and takes vitamins out of the blood
Alekssandra [29.7K]

Answer:

The heart

Explanation:

I belive the heart is the largest organ. dunnk about the poison and vitamin part

4 0
3 years ago
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What two structures do all cells have in common?
Step2247 [10]

Answer:

<u>Prokaryotic and eukaryotic </u>

Explanation:

Both prokaryotic and eukaryotic cells have structures in common. All cells have a plasma membrane, ribosomes, cytoplasm, and DNA. The plasma membrane, or cell membrane, is the phospholipid layer that surrounds the cell and protects it from the outside environment.

<u>(I hope this helps! :)</u>

5 0
3 years ago
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Find the cell that represents the comparison of comamonas testosteroni and escherichia coli. what value is given in that cell?
lina2011 [118]

Answer;

61

Explanation;

-The value 61 signifies that 61% of the 617 nucleotide positions are the same in both species, this about the comparable rRNA gene sequences in Comamonas testosteroni and Escherichia coli.

-Some cells have a dash rather than a value because those cells would compare one species to itself. Other shaded grey with no value because these cells would duplicate comparisons shown elsewhere in the matrix.

7 0
4 years ago
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