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3 years ago

How are biotic factors in the marine ecosystem responsible for bringing carbon-dioxide into the ocean?

Biology

1 answer:

Wewaii [24]3 years ago

7 0

Answer:

Marine ecosystem have biotic organisms like phytoplankton and photosynthetic algae that do photosynthesis and converts the atmospheric carbon dioxide into organic matter most of the carbon dioxide is released when other organisms eat phytoplankton and release the carbon dioxide through respiration.

But some of the algae and phytoplanktons die naturally get down to the bottom of the ocean where they make carbon sink. Some organisms accumulate CO₂ in their exoskeleton that is made up of calcium carbonate.

Therefore this use of carbon by living organisms in oceans brings carbon dioxide from the atmosphere to oceans. This is why the ocean plays a critical role in the carbon cycle and called carbon sink.

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Chondroblasts ________. Select one: a. never lose their ability to divide b. within the cartilage divide and secrete new matrix

alexandr1967 [171]

Answer: b - Chondroblasts within the cartilage divide and secrete new matrix

Explanation: Chondroblasts are derived from two sources; mesenchymal cells within the center of chondrification and chondrogenic cells of the inner cellular layer of the perichondrium (coverings that lie over most cartilage).

At the chondrification centers, the cartilage forming cells (Chondroblasts) begin to secrete the components of extracellular matrix of cartilage. As the amount of matrix increases, the Chondroblasts become separated from each other and they are located in small cavity within the matrix called lacunae.

Concurrently, the cells differentiate into matured cartilage cells called chondrocytes.

7 0

3 years ago

About how long after fertilization do human cells lose totipotency

Oliga [24]

The human cells will lose totipotency about 4 days after fertilization. The fertilized egg creates a single totipotent cell called a zygote. The zygote divides into identical totipotent cells. Approximately about 4 days, the totipotent cells begin to specialize and becomes pluripotent.

5 0

3 years ago

In addition to E. coli, a risk factor for development of pyelonephritis is: a. urinary retention and reflux. b. nephrotic syndro

monitta

Answer:

One of the factors for the development of pyelonephritis, in addition to E. coli, is urinary retention and reflux (option a).

Explanation:

Pyelonephritis is an infection of the upper urinary tract caused by bacteria in the urine, such as Escherichia coli.

Under normal conditions, urine in the urinary bladder is aseptic, that is, without bacteria. The presence of bacteria in the urine indicates a urinary infection.

Urinary retention is the limitation of the expulsion of urine from the bladder. This promotes:

<em>An increase in the amount of bacteria present in the bladder. </em>
<em>The pressure generated by urine retention causes the bladder to generate a retrograde flow - reflow - towards the ureters, leading the bacteria to the kidneys. </em>

The result of urinary retention and reflux - when bacteria are present - is an infection in the upper urinary tract, called pyelonephritis.

Learn more:

Urinary tract infection brainly.com/question/4756206

5 0

3 years ago

Which group of algae is the most closely related to vascular plant, what scientific evidence can be used to support your answer

nataly862011 [7]

Answer:

Explanation:

The green algae lineages hypothesized to be most closely related to land plants include: Coleochaetophyceae (coleochaetes). Charophyceae (stoneworts).well lack of vascular tissue—specialized groups of cells that conduct of water or dissolved nutrients throughout the plants body.(i guess this the scientific evidenxe if not comment ill provide more information)

hope it helps

8 0

3 years ago

20 grams of ice will require how many calories to raise the temperature to 1 C

Vsevolod [243]

I think the answer is 10 calories

3 0

3 years ago