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Andrei [34K]
3 years ago
14

Imagine an exercising muscle cell that requires a constant supply of oxygen to avoid fatigue. At which of the following distance

s from a capillary would you predict these muscle cells to have sufficient oxygen delivery?
a) 0.5 m
b) 100 nm
c) 2 μm
d) 2 mm
Biology
1 answer:
KiRa [710]3 years ago
5 0

Answer:

b. 100nm

Explanation:

The correct answer to the given question is 100nm. Low level of oxygen is observed when active fibers are at a distance of 50m or more than 50m from the perfused capillary, this is why the correct answer to the given question is 100nm, which is the option b. in the given question.

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You have been hired as a field assistant for a researcher interested in the evolution of flower characteristics in orchids. Comp
chubhunter [2.5K]

Answer:

\text{Present a flower with one characteristic changed to the normal pollinator. }\text{As a control, present a flower with no characteristics changed to the normal pollinator}

\text{Record any measure of pollination success}

\text{Repeeat for flowers with other characteristics changed}

<u />\text{Analyze the data to determine which altered characteristics affect pollination }<u />\text{success the most. This characteristic will be the result of the experiment.}<u />

Explanation:

The missing information is attached below.

 \text{Present a flower with one characteristic changed to the normal pollinator. }\text{As a control, present a flower with no characteristics changed to the normal pollinator}

For the control, you'll need something you're already familiar with. In this scenario, a normal flower with no changes in characteristics is the best control. And if no data is accessible, you still have data on the success rate of a typical flower, which can be used as a guideline. And, for the initial configuration, you can only adjust one characteristic so it would be easier to maintain track of and analyze the data gathered.

\text{Record any measure of pollination success}

Since the aim of your experiment is to examine the influence of flower characteristics on pollination performance, you should keep track of the active pollination events. To have more accurate results, this would require listing the total number of plants that were to be pollinated.

\text{Repeeat for flowers with other characteristics changed}

Once you've completed the initial examination, you'll need to run tests on various characteristics to see whether they have some impact on pollination performance. To see the importance of different characters on pollination, change only one trait in flowers; if you'd like to research combined results, create pairs and change them together.

\text{Analyze the data to determine which altered characteristics affect pollination }<u />\text{success the most. This characteristic will be the result of the experiment.}<u />

Your outcome is also the one that has gotten the most constructive or negative reviews. If some changed characteristic significantly affected the number of pollination efficiency, that is your outcome, because that is what you can mention as a good result and pollination enhancer.

4 0
3 years ago
Why do you think mendel spent so much time observing plants &amp; their offsprings before he began experimenting with them?
Nana76 [90]

I don't know if you mean, like, historically or in relation to the scientific method...

I know he was a monk... (I think it was his job to be the gardener too)

But you're supposed to observe before you can come up with a question that you would then answer through experimentation.

3 0
3 years ago
in all three complex carbohydrates the subunits of glucose are bonded together differently. Because they have different structur
ss7ja [257]

Explanation:

options:

  1. contain different chemical elements
  2. form different proteins
  3. carry different nucleotides
  4. perform different functions

Because they have different structures, they most likely-<u>perform different functions.</u>

<em>The corresponding image is attached below...</em>

Carbohydrates function to supply energy and support molecules they consist of mainly sugars or starches in long chains and rings to form monosaccharide monomers. They include monosaccharides, disaccharides and polysaccharides which describes the type of bonding and the degree of complexity of the polymers.  Their structure is closely related to their function.

Basic makeup: C, H, O -with many polar OH groups

Further Explanation:

Many long chain polysaccharides are made up of glucose joined by regular α, 1-4 glycosidic bonds used as energy storage (produced through phtosynthesis) and used for ATP synthesis via respiration, ethyl alcohol fermentation and lactic acid fermentation. Branched chains of α, 1-4 glycosidic bonds linked by α(1→6) glycosidic bonds make up glycogen, a storage molecule in animals. Plants are mostly comprised of structural units cellulose and lignin. However, cellulose is their main structural polysaccharide, found within cell walls.

It is made up of special β, 1-4 glycosidic bonds, which give structural polysaccharides their rigid, strong structure; cellulose is not water-soluble and is highly stable. However, if these alternating bonds aren't present, the plants would lose their main structural support, which allows larger plants, and trees to grow upwards towards sunlight despite their mass.  When arranged in α 1-4 glycosidic bonds these molecules are water-soluble; water would be able to flow readily out of the plant tissue. Thus the plant cells and tissue, would not retain their shapes and may be limited in their potential height without structural support.

Learn more about photosynthesis at brainly.com/question/4216541

Learn more about cellular life brainly.com/question/11259903

#LearnWithBrainly

3 0
3 years ago
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