BIOLOGY HIGH SCHOOL

The brain communicates with the rest of your body by _____.

Answers

Answer 1
Answer: The Central Nervous System is the "highway" in the body through which the brain transmits electrical pulses down the spinal chord to the nerves and organs. The brain sends and transmits these signals to control the functions of the body.Hope this helps. Let me know if you need additional help!
Answer 2
Answer: The question says, how does the brain communicate with the rest of the body. The brain communicate with the other parts of the body by sending nerve impulse, which are form of electrical signal which travel throughout the body, carrying messages from the brain to the receptors and the cells of the body which respond appropriately to the signals.

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Which process produces offspring that are better able to cope with changes in the environment?Mitosis

Cell division

Asexual reproduction

Sexual reproduction

Answers

The correct answer is an asexual reproduction. The process of asexual production is the process in which produces offspring that are better and is able to cope with changes in the environment. The offspring will only inherit the parent's genes, however, not the fusion of the gametes. 

Answer:

Sexual Reproduction.

Explanation:

Genetic variety in a population makes the population better able to cope with changes in the environment.

Someone who takes opioids is risking which of the following outcomes? Chest pain

Breathing trouble

Cancer

Respiratory infection

Answers

Answer:

The correct answer is option , Breathing trouble

Explanation:

Opioids are narcotics that are prescribed by doctor during surgeries but addiction to its continued usage may result into weakening heart beats and slow breathing. The breathing issue arises when specific opioid receptor in the central nervous system (CNS) gets activated thereby affecting the respiratory rhythm. The respiratory rhythm in the CNS is controlled by pre-Bötzinger complex. Opiods also affects the functioning of lungs by slowing down its expansion and contraction mechanism .

I believe the correct answer is breathing trouble

Explanation:

Opioids are a group of molecules that produce an analgesic effect during pain and can be misused as drugs for a "good feeling." Just like any other drugs, they have to bind to receptors in order to produce an effect by entering into a cell and causing a chemical reaction. The specific receptors are called mu receptors in the brain.

Further explanation:

The mu receptors are located in the brain and they line up to the hind part of the brain where there are sites called pons that function to control the autonomous nervous system that is responsible for involuntary activities like breathing and heartbeat. A good example of an opioid that is used for medicinal purposes is morphine that binds to its receptors to prevent the brain from recognizing pain. In the pons that control the autonomous nervous system, there is a complex called  pre-Bötzinger complex that has the μ receptors for the opioids extensively. When a person takes the opioids, they attach to their receptors in order to produce an effect by acting as antagonists (opposing) to the pain molecules in blood. In so doing, they also antagonize the nerve cells that are found in the pre-Bötzinger complex. The end result is a suppressed autonomous nervous system. The lungs will have a problem expanding and relaxing, the heart rhythm will be irregular and the person if not given assistive care, may lose consciousness due to lack of oxygen supply to the brain. Cancer is a condition that is caused by alterations to the genetic material in an organisms causing cells to replicate uncontrollably. Respiratory infections are conditions where microorganisms enter into the tract and impair their functioning for example Streptococcus pyogenes bacteria entering your throat causing the condition called sore throat.

Learn More:

  1. Learn more about the autonomous nervous system brainly.com/question/8772775
  2. Learn more about the pons brainly.com/question/763962
  3. Learn more about breathing problems brainly.com/question/843644

Level: High School

Subject: Biology

Topic: The brain

What observation led researchers to propose that chloroplasts evolved from cyanobacteria?

Answers

The theory that claims that, mitochondria and chloroplast's origin is bacterias, is called the endosymbiotic theory. It suggest that, plastids (one of them is chloroplast) and mitochondria were once, bacterias, and about 1.5 billions year ago they started to live with (inside) the pre-eukaryotic orgamisms. This is called endosymbiosis. The chloroplast originates from the cyanobacterias and the mitochondria from the proteobacterias. The some evidences that support this theory are these :-Mitochondria and chloroplast are formed with binary fission (the way bacterias reproduce)-When you remove a cell's mitochondria or it's chloroplast it can not produce them by itself.-Mitochondria and chloroplast have their own ribosomes (which produces protein) and they are smaller than the cell's own ribosomes, their ribosomes are similar to bacterias'.

Plants have a ____ which prevents bursting in a hypotonic environment

Answers

The answer is cell wall. It is the rigid outer layerof plant cells that is composed of subunits of cellulose molecules,pectin,  lignin, or hemicellulose. It enablesthe plant to withstand turgor pressure,without bursting, required to give them support.

Select the correct statement about olfaction. a) Olfactory adaptation is only due to fading of receptor cell response. b) Olfactory receptors have a high degree of specificity toward a single type of chemical. c) Substances must be volatile and hydrophobic in order to activate olfactory receptors. d) Some of the sensation of olfaction is actually one of pain.

Answers

Answer:

Some of the sensation of olfaction is actually one of pain. (Ans D)

Explanation:

Olfactory system is also known as sense of smell, is called the sensory system used for olfaction (smelling). It is known as the special sense, which have directly association with specific organs. Most reptiles, and mammals contains 2 types of olfactory system:

1) Main olfactory system: It helps in detection airborne substances.

2) Accessory olfactory system: It helps in sense fluid phase stimuli.

Cells can regulate what they need or don't need to maintain their own health.

Answers

This statement is true. Cells are able to regulate what they do or do not need in order to maintain their own health - this is done through the particular things that are filtered or not filtered through the cell membrane.
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