How a community undergoes a series of changes over time?

1 answer:

6 0

Well, if it's an environmental community: Erosion changes the shape of the landscape. New plants grow in, small streams may form. New creatures moving in may also shape the community over time.
In a civilized community: New people in power, of course. Also, new people moving in and out. Hope I helped!

You might be interested in

Which type of tissue performs the role of signal conduction in the body? A. connective tissue B. epithelial tissue C. muscle tis

Allisa [31]

Answer: D. nervous tissue

Nerve tissues send signals to other parts of the body. Nervous tissue performs the role of signal conduction in the body.

4 0

3 years ago

A scientist uses materials in her lab to cut a DNA sample into fragments. What process is this called?

Studentka2010 [4]

The right answer is The digestion of DNA by restriction enzymes.

The fragmentation of the DNA is done by bacterial enzymes called restriction enzymes.

Restriction-enzymes (or endonucleases) recognize and cut the DNA into a specific sequence. These enzymes are naturally produced in bacteria as a defense against bacteriophages - viruses that infect bacteria. The bacterial restriction enzymes cut the DNA of the invasive bacteriophage while leaving the bacterial genomic DNA healthy and safe through the addition of methyl groups.

These enzymes are used in practice at the laboratory level to explore DNA.

7 0

3 years ago

Read 2 more answers

Drag the labels to their appropriate locations in the flowchart below, indicating the sequence of events in the production of fr

matrenka [14]

(Complete question attached)

Answer:

Pol III binds to 3' end of primer B
Poll III moves to 5' to 3',adding DNA nucleotides to primer B
Pol I binds to 5' end primer A
Pol I replaces primer A with DNA
DNA ligase links fragments A and B

Explanation:

Both strands of parental DNA acts as a template for the synthesis of new DNA. The site of synthesis is called replication fork because the daughter strands look similar to two-pronged fork. The strands formed from Okazaki fragments(short sequences of DNA nucleotides) is called the lagging strands, which is synthesized in short fragments and in the opposite direction. While the strand that is synthesized continuously and in the same direction as the movement of the replication fork is called the leading strand. Both strands are synthesized in a 5'→3' direction. DNA ligase join these fragments together.