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Masteriza [31]
3 years ago
14

What are two types of ecological pyramids?

Biology
1 answer:
denis23 [38]3 years ago
5 0
Pyramid of Number


Pyramid of Biomass
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The force required to prevent the movement of water across a selectively permeable membrane is __________ pressure
SOVA2 [1]

The force required to prevent the movement of water across a selectively permeable membrane is osmotic pressure. The plasma membrane forms a vesicle around the substances to be transported, and the vesicle around the vesicle is taken into cells.

Osmotic pressure depends on both the pressure gradient and concentration gradient.  This is only affected by the temperature and concentration of solute, each affect the movement of water across a membrane.

Higher the concentration is higher temperature increases osmotic pressure, which produced or associate with osmosis and dependent on molar concentration and absolute temperature. Hydro-static pressure forces fluid out of the capillary , osmotic pressure draws fluid back in.

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5 0
2 years ago
Which of the following statements about autosomal recessive traits is true?
meriva

Answer:

A. If neither parent expresses the trait, but the offspring does, both parents must be heterozygous for the trait.

Explanation:

If neither parents express the trait is because they are heterozygous and the dominant allele is being expressed over the recessive trait. When parents cross they have 25% of having an offspring that expresses the recessive trait, this means the offspring is a recessive homozygous. In the attached example 25% or 1/4 will have a short stem.

6 0
3 years ago
How does the structure of the stigma aid in pollution
Maslowich
The top of the Stigma is sticky and is where the pollen attaches to it.

I hope this is what you wanted
6 0
3 years ago
Which of these describes a quantitative observation?
Sergio [31]

Answer: <u><em>D. An observation that has a number associated with it</em></u>

Explanation: The answer is D. An observation that has a number associated with it. I would explain further, but it is pretty self explanatory.

<em>Good luck!</em>

3 0
3 years ago
Is the space between the bottom of the objective lens and the surface of the slide.
Svetlanka [38]

WORKING DISTANCE is space between the bottom of objective the lens and the surface of the slide.

The distance between front edge of the objective and the lens and the specimen surface ("with the surface of the cover glass in case of the cover glass objective lens") when the specimen is also focused.

The working distance (W.D.) which is determined by the linear measurement of the objective and front lens to the focal plane. In the general, the objective of the  working distance decreases by the magnification and the numerical aperture of both increase. The working distance is the distance and from the front of the lens to be the focal plane

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4 0
2 years ago
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