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Anna35 [415]
3 years ago
12

The nitrogen cycle moves nitrogen through the abiotic parts of ecosystems only. True or False?

Biology
1 answer:
il63 [147K]3 years ago
8 0

Answer: false

Explanation: true wasn’t right

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What does your heart rate during activity tell you about your cardiorespiratory endurance levels?
boyakko [2]
Your pulse, is both at rest during exercise, this can reveal a heart attach and your aerobic capacity. Correct me if I'm wrong;)
6 0
3 years ago
The major difference between starch, glycogen, and cellulose and their adjacent glucose subunits is the ________.
sveta [45]

Answer:

<u>Starch</u> is the storage form of glucose (energy) in plants and the glucose molecules are linked by alpha 1,4 glycosidic linkage.

<u>Cellulose </u>is a structural component of the plant cell wall and glucose molecules are linked by beta 1,4 glycosidic linkage.

<u>Glycogen</u> is the storage form of glucose (energy) in animals and glucose molecules are linked by alpha 1,6 glycosidic linkage.

Explanation:

All of these sugars are polysaccaride sugars containing large number of glucose subunits.

Starch is a polysaccharide extracted from agricultural raw materials. It contains amylose and amylopectin. Amylose is an un-branched chain polymer of D-glucose units while amylopectin is a branched chain polymer of D-glucose units.

Glycogen is the storage form of glucose in animals, It is stored in muscles and liver and it is a branched polysaccaride.

Cellulose is the storage form of glucose in plants and leaves.

8 0
3 years ago
If you measure the rate of respiration of plant root hair cells, would you expect it to be the same as, more than, or less than
DaniilM [7]

Answer:

The process of respiration in plants involves using the sugars produced during photosynthesis plus oxygen to produce energy for plant growth. In many ways, respiration is the opposite of photosynthesis. In the natural environment, plants produce their own food to survive.As with photosynthesis, plants get oxygen from the air through the stomata. Respiration takes place in the mitochondria of the cell in the presence of oxygen, which is called "aerobic respiration".

In plants, there are two types of respiration: dark respiration and photo respiration. The first kind occurs in the presence or absence of light, while the second occurs exclusively in the presence of light.<em>Plant respiration occurs 24 hours per day</em>, but <em>night respiration is more evident since the photosynthesis process ceases.</em> During the night, it is very important that the <em>temperature is cooler than during the day</em> because plants can experience stress. Imagine a runner in a marathon.

roots respire too!

One of the functions of the substrate is <em>to serve as a site for air exchange between the root zone and atmosphere</em>. In other words, <em>roots breathe oxygen like we do</em>. Different plants have different oxygen requirements for their root systems.

For example,

<em><u>the root system of a poinsettia requires a lot of oxygen, so it is best to use a substrate with high air porosity, while hostas can live well in a substrate with a high water holding capacity. </u></em>

7 0
2 years ago
A change in the genetic make-up, appearance, and behaviors of a species over time is called
Studentka2010 [4]

Answer:

evolution

Explanation:

For example, scientists believe that monkeys have evolved to become humans.

This clearly has happened over many millions of years.

Monkeys look really different from humans (don't you think!?).

This was just a random example that came to my head.

Hope this helps.

-Gumina

8 0
3 years ago
Under a microscope, gram-positive bacteria (when dyed with the gram stain) appear _____.
DedPeter [7]

Under a microscope, gram-positive bacteria (when dyed with the gram stain) appear in purple-colored structures due to the peptidoglycan cell wall.

<h3>What are gram-positive bacteria?</h3>

Gram-positive bacteria are microorganisms (bacteria) that may be colored with crystal violet stain due to the presence of a peptidoglycan-based cell wall.

In conclusion, under a microscope, gram-positive bacteria (when dyed with the gram stain) appear purple-colored structures due to the peptidoglycan cell wall.

Learn more about gram-positive bacteria here:

brainly.com/question/14543191

#SPJ1

7 0
1 year ago
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