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yulyashka [42]
3 years ago
10

What is one way phytoplankton contribute positively to the ecosystem?

Biology
1 answer:
Nezavi [6.7K]3 years ago
7 0
Phytoplankton contribute positively in the oceanic ecosystem as they are a source of food for oceanic animals. Moreover, they remove carbondioxide from the carbon cycle and utilize it for the process of photosynthesis.
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Analysis of the second swab has confirmed that the causative organism is Streptococcus pyogenes, a gram-positive organism. Imagi
sdas [7]
<h2><em>Streptococcus pyogenes</em></h2>

Explanation:

On looking through the microscope we will see purple, spherical-shaped organisms arranged in chainlike formations.

The reasons are:

  • Streptococcus pyrogenes is a gram positive bacteria and hence it will take up Gram's stain and appear purple in color.
  • Streptococci are colonial bacteria that are spherical in structure arranged in chain like formations.

<em>Streptococcus pyogenes </em>usually inhabit the skin of humans and are causative organisms of several infections such as tonsilitis, pharyngitis cellulitis, dermal infections etc.

6 0
3 years ago
Which structures are found in every living cell​
iVinArrow [24]

Answer:

THE THREE MAIN COMPONENTS OF ANY PLANT OR ANIMAL CELL ARE:

1. PLASMA MEMBRANE/ CELL MEMBRANE

Structure- a bilipid membraneous layer composed of proteins and carbohydrates.  It is fluid like.

Function - the cell membrane separates the cell from its external environment, and is selectively permeable (controls what gets in and out).  It protects the cell and provides stability.

Proteins are found embedded within the plasma membrane, with some extending all the way through in order to transport materials.

Carbohydrates are attached to proteins and lipids on the outer lipid layer.

3 0
2 years ago
Read 2 more answers
Phenylketonuria (PKU) is a recessive genetic disorder. If both parents are carriers, what is the probability of this couple havi
wel

Answer: 25%

Explanation: if you do the Punnett Square method then you would see that both parents would have been Dominant  for the trait, so there is a 50% chance of  the offspring to be a carrier, 25% chance of the offspring to have PKU and 25% chance for it to ave  

6 0
3 years ago
An outbreak occurs where the first case is detected on October 15th, the last case is detected on October 27th, and the peak is
aksik [14]

Answer:

12-14 october

Explanation:

The probable period of exposure is calculated as follows:

  1. Know  the range of the incubation period
  2. Start counting back from the days of the first case by subtracting the first number of incubation period range
  3. Count back the days from the last case by subtracting the last number of incubation period range.
  4. This will give a range which will be the period of exposure.

From the question,

  • Incubation period range 1-15
  • Date of first case = october 15
  • Therefore, first date of exposure = 15 -1 = 14
  • Date of last case = 22
  • Therefore, last date of exposure = 27 - 15 = 12
  • Thus, the range is 12-14 october which is the probable period of exposure.
7 0
3 years ago
Which of the following is caused by the modification of density-independent factors?
Semmy [17]
The one that is caused by the modification of density-independent factors is : parasitic wasp invade cocoons, killing caterpillars
Density independent factors refer to occurrences that limit the number of a specific population

hope this helps
3 0
2 years ago
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