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LenKa [72]
3 years ago
6

A student writes a term paper about similarities and differences between

Biology
1 answer:
Arlecino [84]3 years ago
4 0
Creation, expansion, and interaction of political systems
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N African savannas elephants are a keystone species. Elephants eat small trees, such as acacia, that grow on the savanna. Even i
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Answer:

The Acacia tree's and other small plants the elephants eat would begin to grow in terms of population. Similar to if the elaphants grew in population, the Acacia tree's would decrease in population.

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3 years ago
Which observation would provide indirect evidence that supports a hypothesis that the bubbles are o2 ?
zhuklara [117]

Explanation:

D. An increase in bubbles on the plant when it is moved under a brighter light.

The rate of photosynthesis increases with light intensity.

The process of photosynthesis is energy-storing, it converts light energy into chemical energy, which is stored in the bonds of glucose. Thus an increase in light intensity would increase the rate of photosynthesis, and more O2 bubbles would be produced as waste.

Further Explanation:

Photosynthesis is a chemical pathway that’s integral to producing energy in plants and other primary producers. Energy in the form of molecules of glucose is produced from light, water and carbon dioxide while oxygen is released.

Occurring in several complex steps, photosynthesis is a rate limited reaction, depends on several factors including carbon dioxide concentration, ambient temperature and light intensity; the energy is retrieved from photons, I.e. particles of light, and water is used as a reducing agent. Water supplies the chlorophyll in plant cell with replacement electrons for the ones removed from photosystem II.

Additionally, water (H2O) split by light during photolysis into H+ and OH- acts as a source of oxygen along with functioning as a reducing agent; it reduces the molecule NADP to NADPH by providing H+ ionsand produces molecules of the energy storage molecule ATP through an electron transport chain.

This occurs in the thykaloids, where pigment molecules like chlorophyll reside. Later, in dark reactions, NADP and NADPH are used in the Calvin cycle where monosaccharides or sugars like glucose are produced after the modification of several molecules. These store energy in their bonds, which can be released in respiration in the mitochondria.

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

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

#LearnWithBrainly

3 0
3 years ago
Some autoimmune diseases show a positive correlation with dramatically decreased expression of histone deacetylase (HDAC9, an en
soldier1979 [14.2K]

Answer:

The positive charge of the histone proteins get reduced due to the process of histone acetylation, thus making the wrapping of DNA around the histones less tightened. The loose connected DNA afterward associates with the transcription factors for the articulation of the genes situated in that area.  

Generally, when there is no requirement of gene anymore, the acetyl groups from the histones get withdrawn by the activity of histone deacetylase enzyme (HDAC9) that makes the DNA tightly wrapped and inaccessible again. In case, when less expression of histone deacetylase enzyme occurs, the process of deacetylation fails to take place. This indicates that within an immune cell, at the time of infection, the inflammatory gene, which was made available does not get re-wrapped firmly around the histones.  

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3 years ago
if there are 2 sheep, one flying left and one flying right. why is the red one purple and how much does the cow weigh if he is b
Zigmanuir [339]

Answer:

Hmmmm............

Hmmmmmmmm...............

HMMMMMMMMMM...........

Explanation:

I dont know!

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Which of these is the correct sequence for the phases of mitosis? prophase, interphase, metaphase, telophase prophase, metaphase
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PMAT (Prophase,Metaphase,Anaphase, Telophase)

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