Biology, 21.08.2021 07:50 ncontreras06

Hello i need hell to answer this, thank you in advance <3 (The subject is science) and please take your time, again thank you in advance. <3
(I’m sorry if I got the subject wrong from the above)

1. Which is not part of the respiratory system?

a. bronchus b. nasal cavity
c. esophagus d. trachea

2. A long-term smoking habit can destroy the cilia along the lining of the air passages. How could this affect a smoker’s health?

a. the smoker will have very limited air.
b. the smoker will have difficulty in breathing.
c. the smoker’s respiratory tract will be blocked.
d. the smoker will not be able to filter pollutants.

3. In which blood vessel does the exchange of nutrients and wastes happen?

a. arteries b. capillaries
c. lymphocytes c. venules

4. Which type of white blood cells is the most abundant and combats bacterial and fungal infections?

a. eosinophil b. monocytes
c. lymphocytes d. neutrophil

5. Which is the largest artery in the body?

a. aorta b. leg artery
c. lymphocytes d. neutrophil

6. Which among the following choices below is the right pathway of oxygen from the lungs to the body tissues?

a. Alveoli-blood stream-RBC-tissues
b. Alveoli-RBC-bloodstream-tissues
c. RBC-alveoli-bloodstream-tissues
d. RBC-bloodstream-tissues

7. All of the following actions are part of exhalation, EXCEPT

a. The ribcage contracts inward
b. The volume of the thoracic cavity decreases
c. The diaphragm contracts and pull downward
d. The pressure of the thoracic cavity increases

8. What is the difference between haploid and diploid?

a. Haploid contains 46 chromosomes; Diploid is 23 chromosomes
b. Haploid contains 44 autosomes; Diploid is 6 sex chromosomes
c. Haploid contains 6 sex chromosomes; Diploid is 44 autosomes
d. Haploid contains 23 chromosomes; Diploid is 46 chromosomes

9. How many pairs of autosomes do human body?

a. 20 pairs b. 21 pairs
c. 22 pairs d. 23 pairs

10. Genetics is a branch of science that studies heredity and variations. How will you be able to describe heredity?

a. It is the study of genes.
b. It is the study of variation.
c. It is responsible for the uniqueness of individual.
d. It is the passing of traits of parents to their offspring.

11. All of the following are Non-Mendelian inheritance, EXCEPT

a. Segregation
b. Condominance
c. Multiple Alleles
d. Incomplete Dominance

12. Gene is a part of a cell that controls or influences the appearance and growth of a living organism. Where are genes specifically located?

a. Inside the cell.
b. Segment of the DNA.
c. Inside the chromosomes.
d. Segment of chromosomes.

13. Nadine who is a homologous dominant curly hair (CC) married James, a heterozygous dominant (Cc), and gave birth to a jolly and beautiful curly hair girl named Jadine. What principle of inheritance was shown in the result?

a. Dominance and Recessiveness b. Segregation
c. Independent Assortment d. Incomplete dominance

14. In carnations, when a red flower is crossed with a white flower, pink is produced. What principle of Inheritance was shown in this breeding result?

a. Condominance b. Segregation
c. Sex-linked Traits d. Incomplete dominance

15. Why is biodiversity important to ecosystems?

a. It increases at each level of the food chain.
b. It helps population adapt to ecological changes.
c. It reduces the number of insects in a given ecosystem.
d. It allows animals to feed permanently from specific type of plant.

Answers: 3

Show answers

Another question on Biology

Biology, 22.06.2019 03:00

Johnny rode his bike 4 blicks down the street to his friend's house once he got to his friend house and realized he could not cone out to play he turned aroubd and went back home.what is displacement for the total bike ride? how did you determine this? what could we use as a reference point to determine he was in motion during his bike ride? why can you use it as a reference point

Answers: 1

Answer

Biology, 22.06.2019 05:20

The large increase in atmospheric carbon dioxide in the last 50 years most likely comes from a. an increase in cellular respiration b. increased decomposition by bacteria c. an increase in the burning of fossil fuels d. an increase in photosynthesis

Answers: 3

Answer

Biology, 22.06.2019 09:10

Explain the cellular functions that occur when antibiotics attack a bacteria cell. a. antibiotics target the cell wall, cell membrane, and the processes of protein and nucleic acids production in bacteria to rupture the cell. b. antibiotics create dormant resistant endospores to preserve the genetic material and rupture the cell. c. antibiotics target the cell wall and form a bridge-like connection to form conjugation. d. antibiotics use binary fission to grow twice its size, replications its dna, and split into two cells.

Answers: 2

Answer

Biology, 22.06.2019 09:30

Knowing the importance of the essential elements, why would someone chose a diet that does not address all of them?

Answers: 1

Answer

You know the right answer?

Hello i need hell to answer this, thank you in advance <3 (The subject is science) and please t...

Questions