1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Dmitry [639]
3 years ago
9

Which of the following accurately describes an effect of smoking? A. Smoking damages cilia in the trachea and more particles ent

er the lungs. B. Smoking lowers blood pressure. C. Smoking enables hemoglobin to carry more oxygen. D. Smoking decreases heart rate.
Biology
2 answers:
soldier1979 [14.2K]3 years ago
7 0
One of the side effects of smoking is the damage of cilia in the trachea which allows particles to entre the lungs. Smoking destroys the cilia which are key in keeping particles from getting down into your lungs so every time a person smokes more and more cilia are destroyed.
zlopas [31]3 years ago
6 0

Correct answer: A). Smoking damages cilia in the trachea and more particles enter the lungs

Tar is a particulate matter that is generated by the burning of tobacco, in a form of cigarette smoke. It contains a variety of inorganic and organic chemicals like carbon dioxide, nitrogen, oxygen, carbon monoxide, and volatile compounds.

Smoking is known to destroy the cilia, fine hair that is known to be found in the upper airways that help to protect against the infection. If cilia are damaged then tar can more easily penetrate into the lungs can cause more damage and may cause cancer.

Hence, the correct answer would be option A.


You might be interested in
Bacteria are able to reproduce very quickly through a process known as binary fission. Binary fission requires only one parent.
kkurt [141]

Answer:

this is called asexual reproduction

Explanation:

it is where one parent makes a clone of themselves through budding.

7 0
3 years ago
What would happen if one of the chromosomes in a homologous pair failed to separate from its homologue at the end of metaphase I
Zepler [3.9K]

The correct answer is: daughter cells will have abnormal chromosome numbers and this condition is called aneuploidy.

Nondisjunction is the failure of homologous chromosomes (or sister chromatids) to separate during the process of cell division and consequently lead to aneuploidy. There are three forms of nondisjunction:  

• Nondisjunction in meiosis I (pair of homologous chromosomes unable to separate in meiosis I),  

• Nondisjunction in meiosis I (sister chromatids unable to separate during meiosis II), and

•  Nondisjunction in mitosis (failure of sister chromatids to separate during mitosis)


4 0
3 years ago
Read 2 more answers
Determine whether each of the following is a characteristic of the life cycle of a seed plant, a seedless plant, or both. Double
Gnoma [55]

Double fertilization-plants with seeds (flowering plants), two male gametes joining with female gametophyte

Gametophyte generation-both (haploid, sexual stage stage-gametophyte, and the diploid stage that produces spores – sporophyte)

Endosperm formed-plants with seed because it is a tissue formed inside the seed which surrounds the embryo and provides nutrition

Mitosis-both (mitosis occurres in spores)

Spores develop into gametophytes-both but, in seedless plants sporophyte produces spores that will develop into a new organism (multicellular gametophyte) using mitosis, while spores of seed plants are produced internally and develop into more complex structures.


7 0
3 years ago
Scientists can determine the age of a layer of rock by...?
Alexxandr [17]

Answer:

B) Identifying the minerals within it

Explanation:

Geologists commonly use radiometric dating methods, based on the natural radioactive decay of certain elements such as potassium and carbon, as reliable clocks to date the age of rock layers.

4 0
3 years ago
Scientists tested the effect of a fertilizer on the growth of plants. They had 2 sets of plants, Group A which gets fertilizer,
fiasKO [112]
1. This scenario is controlled due to the fact that they usually <span>test the effect of fertilizer, water and sunlight. Two last points pose as explanation for the second part of question.
2. It </span>can not be considered a theory because often it is supported by <span> hypothesis, so it's not direct thesis.
3. The way to know </span>that the y-axis is measuring the growth of the plant is to look at the graph and see that it <span>shows  plant growing up.</span>
8 0
3 years ago
Other questions:
  • Which of the following is an appropriate hypothesis to answer the question why are leaves green
    6·1 answer
  • The nurse is caring for a client with burns receiving opioid analgesics and who is sedated. which medications should the nurse a
    12·1 answer
  • Which of the following is true of embryonic stem cells but not of adult stem cells?
    5·2 answers
  • Explain what sets convection currents into motion.
    11·1 answer
  • How are the organ system in a human interrelated
    7·1 answer
  • PLEASE HELP ME IDENTIFY THESE!!!
    11·1 answer
  • A male beetle has the genotype ttbb. if this beetle mates with a female with genotype ttbb, what is the chance their offspring w
    12·1 answer
  • Based on physical features this cell is most likely an ______ cell
    7·2 answers
  • Describe how gravity affects reentry and other energy factors.
    5·1 answer
  • (I will mark brainliest please help!)
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!