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Alex17521 [72]
3 years ago
13

Define the 3 main mechanisms in a “feedback loop”. (the names and what each does)

Biology
1 answer:
viktelen [127]3 years ago
7 0

Explanation:

A feedback loop involves:

  1. a receptor
  2. control center
  3. an effector

The endocrine system involves chemical signalling via the secretion of molecules called hormones into extracellular fluid. They bind to chemical receptors in order to cause specific changes in target cells, these lead to changes in the body's internal environment called homeostasis. It includes the thyroid, parathyroid, pituitary, pineal and adrenal glands along with other regions. The bone, adipose tissue, heart, pancreas and liver are a few of the regions of the body which show endocrine function. The brain, or control center functions to receive and process the information from the receptor. Effectors receive the control center's command and illicits a response in the form of a feedback loop, that may oppose or enhance the stimulus.

Further Explanation:

During homeostasis the body maintains a constant internal balance in pH, temperature, blood pressure etc. Cells in a multicellular organism become specialized for particular tasks and communicate with one another in order to maintain homeostasis. Within the human body these are known as hormone cascades, where several complex steps occur- the tissues signal to one another with the use of hormones released by the endocrine system. For instance, the regulation (increase and decrease) of these secretions is achieved by negative feedback loops, where the release of certain substances during a cascade in turn halts the secretion of hormones at earlier stages.

Learn more about tissue types at brainly.com/question/8487952

Learn more about homeostasis at brainly.com/question/1601808

#LearnWithBrainly

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What is the history of the io moon?
astra-53 [7]

Answer:

Galileo Galilei discovered io on January 8th, 1610 and the discovery, along with the three other Jovian moons Europa, Ganymede and Callisto, were the first moons discovered that were orbiting a planet other than Earth

5 0
2 years ago
4. What will be the phenotype of the fly that grows from the fertilized cell shown
erica [24]

Answer:

D

Explanation:

Take a look at the traits.

When there are two recessive alles, the recessive trait is inherited. Like in cc.

But if there is a dominate one, per say in lL, the dominant is always inherited.

3 0
3 years ago
Which roles are played by calcium ions in coordinating the activation of a muscle by motor neurons?.
defon

Answer:

your answer would be b

Explanation:

4 0
2 years ago
what does the term 2pq represent in the hardy-weinberg equation? the frequency of homozygous recessive individuals the frequency
Nostrana [21]

The term 2pq represented in the hardy-weinberg equation is the frequency of heterozygotes and is denoted as option D.

<h3>What is Hardy-weinberg equation?</h3>

This mathematical equation is used to calculate the genetic variation of a population at equilibrium and can be seen below:

p² + 2pq + q² = 1

where

p² is dominant homozygous frequency (AA)

2pq is heterozygous frequency (Aa)

q² is recessive homozygous frequency (aa).

The 2pq can be seen as the heterozygous frequency which is therefore the reason why option D which is frequency of heterozygotes was chosen as the most appropriate choice.

Read more about Hardy-weinberg equation here brainly.com/question/5028378

#SPJ1

8 0
2 years ago
In which of the following structures of a vascular plant would you expect to find totipotent cells? select all correct choices.
natita [175]
The choices can be found elsewhere and as follows:

A. mature leaves
B. shoot apical meristem
C. cell elongation zone
<span>D. axillary buds
</span>
I think the correct answers are option B and D. It would be at the shoot apical meristem and the axillary buds that <span> a vascular plant would you expect to find totipotent cells. Hope this answers the question.</span>
8 0
3 years ago
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