BIOLOGY COLLEGE

Explain how the lungs work
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Answers

Answer 1
Answer:

Answer:

Your lungs bring fresh oxygen into your body. They remove the carbon dioxide and other waste gases that your body's doesn't need.

Explanation:

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Related Questions

Trans fat:a. is found naturally in some animal productsb. has an established daily value that can be followed in a daily menuc. does not appear to be linked to the development of chronic disease such as diabetes and coronary artery diseased. a and be. none of the above
Sister chromatids present during mitosis are a. duplicated chromosomes. b. identical copies. c. separated during mitosis. d. made during the S phase. e. All of the above.
On Earth we can easily see Mercury, Venus, and Mars in the night sky. The planets look like they are moving through the stars because the?
A scientist added bacteria and a nutrient medium that could support the growth of the bacteria to a sterilized petri dish. No other materials were added.The graph models growth of the bacteria over time.Bacterial PopulationTimeWhich of these most likely explains why the bacterial population stopped growing?The bacteria mutated from photosynthetic to carnivorous organisms and consumed one another until all the individuals were dead.The bacteria reproduced in the system but eventually died due to limited resourcesThe bacteria became diseased and were unable to survive in the closed systemThe bacteria competed for nutrients and died after all the nutrients were consumed
This is a description of a(n)

Which of the following is the functional unit of a myofibril? a. sarcomere
b. myofilament
c. sarcolemma
d. endomysium

Answers

Answer:

Sarcomere

Explanation:

Myofibril is the unit of the muscle cell. The myofibril is rod like in structure and developed by the process of myogenesis in embryo.

Sarcomere is the basic structural unit of the skeletal muscles and shows striations under the microscope. Sarcomere consists of thick and thin filaments of actin and myosin. Different bands like A- band , H-Band, I-Band and Z- line is visible in the sarcomere.

Thus, the correct answer is option (A).

Which of the following best describes the effect of cancer-causing mutations on the cell cycle? The mutations increase the speed of the cycle. The mutations cause the cell to bypass checkpoints in the cycle The mutations eliminate one or more stages of the cycle. The mutations interfere with S stage of the cycle. None of these.

Answers

Answer:

None of these.

Explanation:

Cancer mutations affect cell cycle regulators.

Cell cycle is a highly regulated process by the regulators that can promote cell cycle or inhibit the cycle. Genes that encode for those regulators are classified into two groups:

  • proto-oncogenes-encode for positive regulators such as growth factor receptor. If a cancer mutation occurs in the proto-oncogene it becomes oncogene and its product is overactivated. The increased avtivity of positive regulators leads to abnormal cell division.
  • tumor suppresor-the products of such genes blocks the cell cycle, but after the mutation they become inactive, which leads to uncontrolled cell cycle.

What refers to the process by which cells become specialized in structure and function

Answers

Answer:

Hope this will help you... And please mark me as Brilliant

Explanation:

Permineralization. Permineralization is a process of fossilization that occurs when an organism is buried. The empty spaces within an organism (spaces filled with liquid or gas during life) become filled with mineral-rich groundwater. ... Small-scale permineralization can produce very detailed fossils.

Archaea differ from bacteria in that archaea

Answers

Archaea have more complex RNA polymerases than Bacteria, similar to Eucarya. Unlike bacteria, archaea cell walls do not contain peptidoglycan. Archaea have different membrane lipid bonding from bacteria and eukarya. There are genetic differences.

How many functional groups are present in threonine

Answers

Threonine contains two functionalgroups: an amino group (-NH_2) and a hydroxyl group (-OH).

These functionalgroups are responsible for the molecule's properties and reactivity. The amino group is part of the amino acid structure, while the hydroxyl group is characteristic of alcohols.

The carboxyl group (-COOH) is another functionalgroup present in threonine. It is acidic in nature and can donate a proton, making threonine capable of acting as a weak acid.

The hydroxyl group (-OH) attached to the side chain of threonine is an alcohol functional group. It provides threonine with unique chemical properties.

Thus, threonine contains two distinct functional groups: an amino group (-NH_2) and a hydroxyl group (-OH).

For more details regarding functional group, visit:

brainly.com/question/1356508

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Answer:

It contains Amino group NH2, Carboxylic Acid group COOH, also Hyroxyl group OH

Explain why animals exhibit differences in their essential food requirements?​

Answers

Explanation:

Environment affects animal behavior by changing the availability of survival resources like food & shelter, as well as situational things like proximity to human activity. Sometimes the same species of animal will behave completely differently in a forest environment compared to an urban environment.

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Answer:

Hope this helps :)

Explanation:

Different animals display different needs for different foods depending on their species. For example, a human will eat meat if they need protein and they will eat lemons if they need citrus. Animals are the same way. The animals will eat different foods depending on their needs and preference.

I didn't fully understand the question, but I hope I was able to help/give the right answer. :)
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What is worm "poop" called?​
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The pedigree below concerns a certain rare disease that is incapacitating but not fatal. Determine the most likely mode of inheritance of this disease. Write the genotype of each family member according to your proposed mode of inheritance. If you were this family’s doctor, how would you advise the three couples in the third generation about the likelihood of having an affected child?