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notka56 [123]
2 years ago
12

HELP ASAP I NEED THIS ANSWER!!! A scientist is observing a worm that was found inside a host. The worm has an outer body that is

smooth and soft.
Which worm is the scientist least likely to be observing?

an earthworm
a pinworm
a hookworm
a tapeworm
Biology
2 answers:
mihalych1998 [28]2 years ago
4 0

Answer: A

Explanation: I took the test

ivann1987 [24]2 years ago
3 0

Answer:

A cuz my notes say so

Explanation:

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gogolik [260]

Answer:

B) increased exchange surface provided by their membranes

Explanation:

Alveoli are tiny air sacs that are responsible for exchanging oxygen (O2) and carbon dioxide (CO2) in the lungs. Alveoli have elastic fibers in order to expand and recoil depending on the volume of air breathed in. The alveolar epithelial cells (pneumocytes) may adopt a shape that serves to increase the surface area of gas exchange. On the other hand, intestinal epithelial cells have microvilli, which are microscopic projections in the plasma membrane. Microvilli serve to increase the cell's surface area, thereby facilitating the absorption of nutrients and water.

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3 years ago
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A biologist found an asymmetrical organism. A part of the organism was injured, but it was able to repair itself through regener
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Answer:

Because the organism is asymmetrical and it was able to regenerate, it’s probably (an amphibian), and belongs to the phylum (Mollusca).

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2 years ago
From the right atrium through the tricuspid valve to the __(1)__ through the __(2)__ valve to the pulmonary trunk to the right a
atroni [7]

Answer:

Circulatory system

Explanation:

From the right atrium through the tricuspid valve to the right ventricle through the pulmonary sigmoid valve to the pulmonary trunk to the right and left lungs to the capillary beds of the pulmonary veins to the left atrium to the left ventricle of the heart through the mitral valve, to the aorta through the aortic semilunar valve, to the whole body, to the systemic arteries, to the capillaries of the body tissues, to the systemic veins, to the superior cava vein and inferior cava vein, which enter the right atrium of the heart.

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3 years ago
Why was the introduction of the Chinese Chestnut tree harmful to native<br> species?
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Answer:

Cryphonectria parasitica is a parasitic fungus of chestnut trees.

Explanation:

this was caused from a great disease  that overran the country

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3 years ago
Whose argument is stronger regarding the SAC curves and the LAC​ curve? A. The draftsman since the lowest point on each SAC curv
jarptica [38.1K]

NB: This is a business question, not biology.

Answer:

SAC (Short-run Average Cost) and LAC (Long-run Average Cost)

The stronger argument regarding the SAC (Short-run Average Cost) curves and the LAC (Long-run Average Cost) curves is:

A. The draftsman since the lowest point on each SAC curve will have a horizontal tangent line which only occurs at the lowest point on the LAC.

Explanation:

The costs of all factors of production become variable in the long run.  But in the short-run, some costs are variable, and some are fixed.  When the producer starts operating over the long run period, it can then operate without the constraints imposed by the presence of the fixed-cost factors. Therefore, in the long run, the average cost (LAC) is equal to the short-run average cost (SAC) because there is an unconstrained minimum average cost at all output levels.

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