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marishachu [46]
3 years ago
5

What does diffusion do in the respiratory system and circulatory system

Biology
1 answer:
GenaCL600 [577]3 years ago
6 0

Answer:

Diffusion in the Lungs trades out Carbon Dioxide (CO2) for Oxygen (O2) In the Circulatory system it trades Oxygen (O2) for Carbon Dioxide (CO2)

Explanation:

As you breathe the Lungs take in air, as they do that the air travels to the bronchi, from there it goes through a process where the veins which have carried de-oxygenated blood to be diffused and reloaded with Oxygen and trade off their CO2. Then the blood flows through arteries and delivers the needed O2 to cells throughout the body and the cycle repeats.

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Rhesus monkeys were exposed to lesioning of a specific brain area, and when they woke up they showed a pronounced decrease in th
andre [41]

Answer:

a. amygdala

Explanation:

According to my research on studies conducted by various neurologists, I can say that based on the information provided within the question the part of the brain that was most likely under investigation in this study was the amygdala. This can be said because the amygdala is the part of the brain that is responsible for emotions, survival instincts (which dictates fear levels), and memory.

I hope this answered your question. If you have any more questions feel free to ask away at Brainly.

7 0
3 years ago
1)Most of the food we eat can be influenced by whom?<br><br> 2)Food choices come from what?
Fantom [35]

Answer:

1) Hunger, savor, appetite. Three main biological reasons why we eat. Also, the economic ability to pay for the food. And the fisical capability to go and buy food, to cook.

2) Our physiological needs are the main reason why we choose food. People need energy to survive.

Everyone would like to have the possibility to eat what he wants. But food choices depend on the financial situation, social class, and preferences.

That is why poor people or people who have less money to spend on food, often eat food that can feed more people but it doesn’t have nutritional values. When people have money, they immediately have a wider spectrum of groceries that can choose from.

Explanation:

Savour is equal to enjoying. When people are not hungry they are happier. We choose what to eat depending on the look, taste, smell, texture. As sweets smell good, people consider them the most attractive food. Food is not just the source of nutrition, it is also the source of satisfaction.

5 0
3 years ago
Which of the following are TRUE statements about red blood cells (erythrocytes)?
Romashka [77]

Answer:

The correct answer will be options A, B and E.

Explanation:

Red blood cells or RBC or erythrocytes are the cells present in the connective tissue which forms the blood. RBC perform various functions in the body but the primary function is the transport of the gases in the body.

The RBC are continuously formed in the bone marrow region of the bone form the hemopoietic stem cell found in the bone marrow. These cells produce a large amount of RBC that is about  2 million cells per second in a healthy adult.

When RBC are formed posses nucleus but when mature, they lack nucleus that is genetic material and organelles like mitochondria so, they are not able to divide.  

These RBC contain haemoglobin in their cytoplasm which shows high affinity to bind oxygen and low affinity to bind carbon dioxide to the iron group of haemoglobin.

Thus, options A, B and E are the correct answer.

3 0
3 years ago
Which of the following molecules are not required to express a gene in eukaryotic cells?
slava [35]

Answer:

Repressor protein

Explanation:

Repressor is a protein that binds to deoxyribonucleic acid(DNA) or ribonucleic acid(RNA) it inhibits the expression of one or more genes which is done by binding to the associated silencers.

A DNA binding repressor works by blocking the attachment of RNA polymerase an enzyme that enhance transcription to the promoter, thus preventing genes from been transcribed into messenger RNA.

An RNA binding repressor binds to the messenger RNA and prevents translation of the bases on the messenger RNA into protein. The blocking of expression is called repression.

4 0
3 years ago
How might a comparison of the anatomy of two closely related animals such as lizards and snakes provide information about their
jenyasd209 [6]
There are two ways of working out the phylogeny (family tree) of living animals. One is by analyzing their genes; the other is to analyze the extent to which they are similar in form. In either case. the results can then be integrated with the fossil record. In principle, the two approaches should be complementary. Both should lead to a consistent account of how snake and lizard families descended from a single stem. More or less a greater number of shared traits would mean they recently diverged from a common ancestor.
4 0
3 years ago
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