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DerKrebs [107]
3 years ago
10

PLS PLS PLS ANSWER NOWWWWW

Biology
1 answer:
Ilia_Sergeevich [38]3 years ago
4 0

Answer:

D.aerobic respiration of lactic acid

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How many years ago did wolves begin to evolve into dogs
Mrrafil [7]

Answer:

a long time just kidding

Explanation:

20,000 and 40,000 years ago this can be proved by fossil evidence.

mark me brainliest please!

4 0
3 years ago
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How does the process of smooth muscle contraction differ from contraction in skeletal muscle?
Lana71 [14]

Similar to the other types of muscle, smooth muscle contraction is caused by the sliding of myosin and actin filaments over each other. Calcium initiates contractions in a different way in a smooth muscle than in a skeletal muscle.

Smooth muscles use less energy to generate the given amount of force, can substain contractile force without fatigue & uses calcium from the sarcoplasic reticulum & extracellular space.

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3 years ago
A patient comes to you with a "PUS" sample and asks you to isolate & identify the Staphylococcus aureus form this sample the
Irina-Kira [14]

Answer: Staphylococcus aureus can be isolated from the pus sample through the following steps:

--> Step 1: Describe the appearance of the specimen

--> Step 2: Examine the specimen microscopically

--> Step 3: Culture and report your observations.

--> Step 4: Biochemical testing

Explanation: Staphylococcus aureus are gram positive cocci bacteria that can be isolated from pus samples.Pus samples, which may come from wounds, abscess, burns or sinuses, are the type of samples which do not contain microorganisms and should not contain contaminants providing an aseptic collection technique and sterile container are used.

Staphylococcus aureus can be isolated from the pus sample through the following steps:

--> Step 1: White, yellow, brown, red, or black granules of varying size, shape, and consistency may be found in pus draining from

sinuses while describing the appearance of the pus sample.

--> Step 2: Here the specimen is examined microscopically after being stained with a staining technique called Gram staining. This step is done before culture to know the type of medium to use after gram positive cocci is microscopically seen.

--> Step 3: there are different cultures media that can be used to inoculate and culture a pus specimen. Since we are to isolate staphylococcus aureus, a selective and differential media known as Mannitol salt agar (MSA) is used. The presence of yellow colonies with yellow zone after incubation at 37°C indicate the presence of Staphylococcus aureus or species. There for the last confirmation test known as biochemical test is done.

--> Biochemical test: This is a chemical test that is done to identify a particular bacteria. For staphylococcus aureus, COAGULASE test is used to identify staphylococcus aureus which produces COAGULASE enzyme. A positive COAGULASE test is an indication of the presence of staphylococcus aureus as the bacterium isolate of the specimen.

7 0
3 years ago
What happens at the end of the transcription process?
Goshia [24]

Answer:

C) DNA produces messenger RNA, also called mRNA.

Explanation:

During transcription DNA is used as a template to make RNA. RNA then leaves the nucleus and goes to a ribosome in the cytoplasm, where translation occurs. Translation reads the genetic code in mRNA and makes a protein.

5 0
3 years ago
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3. Meiosis is sometimes called reduction division. What does this mean
ludmilkaskok [199]
This is because meiosis reduces the total number of chromosomes to half its original number
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