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Semmy [17]
3 years ago
9

What is the difference between the rough and smooth endoplasmic reticulum

Biology
1 answer:
Pani-rosa [81]3 years ago
5 0
Rough ER is studded with ribosomes and the Smooth ER has a smooth surface ..
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A DNA molecule can be described as a twisted ladder. The ________ form the sides, and the ________ form the rungs. Select one: A
Ronch [10]
The answer is A:
The SUGAR-PHOSPHATE CHAINS form the sides, and the BASE PAIRS form the rungs
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3 years ago
Read 2 more answers
Under which environmental condition would primary succession occur ​
astraxan [27]

Explanation:

Primary succession starts off with the modification of a previously unoccupied area along with increasing variation- this occurs in barren areas devoid of life like sand dunes, and lava flows. Communities in a primary succession include:

-barren rock

-bacteria and fungi

-mosses and lichen

Further Explanation:

Succession involves small scale changes within a community that occur repeatedly over the life of that community.

Ecological communities are highly dynamic- they gradually evolve. Typically their progression involves:

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  • becoming a habitable and increasingly complex community
  • there is increased diversity of organisms (Secondary)

The makeup of biological communities is crucial to defining Primary and Secondary succession; eventually, through changes in this makeup, a steady-state or equilibrium is reached called a climax community. While Primary succession starts off with the modification of a previously unoccupied area along with increasing variation; secondary succession begins after major disruption in the community such as fires, storms and flooding.

However, the process of becoming a climax community can be pretty complicated- it is very dependent on other factors like temperature and rainfall. Communities that experience rapid change, frequent major disruptions and even human intervention, are less likely to attain a stable equilibrium and may never become climax communities.

Learn more about ecological succession at brainly.com/question/2456852

#LearnWithBrainly

8 0
3 years ago
PLEASE HELP <br><br> Which of these contain<br><br> DNA and/or RNA?
blondinia [14]

Answer:

dna and rna

Explanation:

DNA is a double-stranded molecule, while RNA is a single-stranded molecule. ... DNA and RNA perform different functions in humans. DNA is responsible for storing and transferring genetic information, while RNA directly codes for amino acids and acts as a messenger between DNA and ribosomes to make proteins.Feb 2, 2020

3 0
2 years ago
List the 3 types of cell junctions and state which is the most and least permeable.
Zanzabum
1) occluding junctions
2) anchoring junctions
3) communicating junctions
Occluding junctions do not totally seal the space between cells and the resulting permeability varies greatly.  I would say anchoring junctions are most likely with one of the other 2 junctions being least permeable.
4 0
3 years ago
Which of the following is the most likely do we observe it by a physiologist
vampirchik [111]
What controls what molecules pass in and out of a cell?
5 0
3 years ago
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