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kakasveta [241]

2 years ago

6

Sebaceous glands, associated with hair follicles, produce a thick, oily substance by releasing the entire cell and its contents.

This is known as __________ secretion.

1 answer:

lbvjy [14]2 years ago

5 0

Answer:

This type of secretion is known as Holocrine. Whereby the entire cell and content is released

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The vastus lateralis is innervated by the __________. The vastus lateralis is innervated by the __________. fibular nerve tibial

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Answer: femoral nerve

Explanation: the vastus lateralis muscle is innervated by the femoral nerve. The femoral nerve is a nerve that gives out branches from L2-L4(lumbar). And it innervates the anterior compartment of the thigh. This nerve gives muscular divisions, and the posteior divisions innervates the vastus lateralis muscle as well as vastus medialis and vastus intermedius.

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What temperature must milk reach to be pasteurized?

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145 F

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Pasteurization of milk widely practiced in several countries, notably the United States, requires temperatures of about 63 C 145 F maintained for 30 minutes or, alternatively, heating to a higher temperature, 72 C (162 F), and holding for 15 seconds and yet higher temperatures for shorter periods of time :D

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Ocw-qndm-tyv only girl's

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how many dna molecules would there be after four rounds of pcr if the initial reaction mixture contained two molecules?

Marat540 [252]

Answer: 32 molecules of DNA would be after four PCR if the initial reaction mixture contained two molecules

After 'n' rounds of the polymerase chain reaction, it is feasible to produce 2 n DNA molecules from a single DNA template molecule (PCR). Therefore, 2 to the power 4 = 16 DNA molecules will be produced after 4 PCR cycles
If two molecules are doubled four times, 32 DNA molecules are created.

Explanation:

The PCR method is what?

The highly sensitive PCR method enables quick DNA amplification of a particular section. Using visual methods based on size and charge, PCR may detect and identify gene sequences by producing billions of copies of a certain DNA fragment or gene.

What does a PCR have to accomplish?

A given DNA segment can be quickly multiplied (amplified) into millions or billions of copies using the polymerase chain reaction (abbreviated PCR), allowing for more in-depth analysis.

What are the three main PCR steps?

For any DNA synthesis reaction, there are only three easy stages that must be completed: First, the template is denaturated into single strands. Next, primers are annealed to each original strand to synthesise new DNA strands. Finally, the new DNA strands are extended from the primers.

To know more about PCR visit :

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1 year ago

In a common reflex arc, after a sensory nerve signal is processed by interneurons in the integration center, where does the sign

kobusy [5.1K]

In a reflex arc, after a sensory nerve signal is processed by interneurons in the integration center, the signal goes to the motor neuron. The answer is motor neurons.

<h3>What is the reflex arc?</h3>

The reflex arc refers to the sequence of events since the body receives an external stimulus until it reacts.

In general terms,

1) A stimulus of varying nature reaches the body.

2) The peripheric nervous system -PNS- receives the stimulus and sends this information to the central nervous system -CNS-.

3) The CNS processes the information and sends another signal as a response to the stimulus.

Five elements compose the reflex arc, which are receptors, three types of neurons, and effectors.

The neurons involved in the mechanism are:

• Afferent or sensorial neurons

• Interneurons

• Efferent or motor neurons

Mode of Action:

<u>Ascending branch</u>

The stimulus reaches the body and is received by the specialized sensory receptors.

Afferent neurons, placed in the dermis and epidermis, receive this information from receptors, react and send it to the central nervous system as nerve impulses.

<u>Descending branch</u>

Interneurons in the CNS, process the information and send a motor response.

Efferent neurons carry the response from the CNS to the effector organs, which might be either a muscle or a gland.

Finally, the target tissue responds to the stimulus as a contraction -muscle-,or as hormones release -gland-.

A motor neuron is formed by a cellular body, dendrites (cytoplasmic extensions that receive stimuli from other cells), and a long axon that is capable of conducting the electrochemical signals.

The axon brunches out into several extensions when it approaches the muscle.

At the end of each brunch, the axon is inserted in the muscle fiber surface, composing neuromuscular join.

This is the last part of the NS involved in the process before the muscle contracts.

After a sensory nerve signal is processed by interneurons in the integration center, the signal goes to the motor neuron, and from there to the effector.

The corrct answer is motorneuron.

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1 year ago