Answer the question below

Which of the choices below determines the direction of respiratory gas movement?

navik [9.2K]

Answer:

a. pulmonary ventilation

Explanation:

Pulmonary ventilation: In biology, the term "pulmonary ventilation" is also referred as "breathing" and is described as a phenomenon of moving air out and into an individual's lungs. Generally, air enters the "respiratory system" via nasal cavity and mouth, and then it passes through the "pharynx" and then the "larynx" and lastly to the "trachea" that enters the "chest cavity" of an individual.

In the question above, the correct answer is option A.

4 0

3 years ago

What is a community?

yarga [219]

Answer:

A community is a group people who all live in the same environment and place and help each other out in certain situation.

Explanation:

5 0

3 years ago

Create three relevant questions that you would like answered or clarified about the role of DNA and chromosomes. Focus on the fo

ASHA 777 [7]

Answer:

Chromosome is made up of protein and DNA molecule.

Explanation:

Chromosome is a thread like structure which is formed from protein and one molecule of DNA. It is present inside the cell of both plant and animals. DNA is a heredity material which contains all characteristics of an organism. Genetic code are codes which contains information about the formation of a specific protein while gene expression is a process in which genetic code is used for the synthesis of proteins. There is no specific role of DNA segments that do not code for proteins but some scientist belief that it control the activity of the gene.

4 0

3 years ago

Write an argumentative essay which says without photosynthesis there is no life

AysviL [449]

Explanation:

you could include the points such as,

--> photosynthesis produces O2 which is necessary for respiration.

-->photosynthesis reduces the amount of CO2 in the atmosphere as it uses it up in the reaction. this controls the atmospheric rate of CO2 and reduced the greenhouse effect.

--> plants are the primary producers in a food chain and so, photosynthesis plays a primary role in the stability of food chains as they're the primary source of glucose as all the higher consumption is based off the producer.

--> virtually seeing, all the energy within the biosphere is based off plants that depends on photosynthesis.

--> If photosynthesis ceased, there would soon be little food or other organic matter on Earth, most organisms would disappear, and Earth's atmosphere would eventually become nearly devoid of gaseous oxygen.

there could be more but this is all I could think of.

hope it helps. :)

3 0

3 years ago

What is science? What is the goal of science?

inn [45]

<h2>Science</h2>

Science is the study of the natural world or physical universe.It is the knowledge of anything that can be verified by experiments.Science is organised into different fields of study. These fields are physics, chemistry, biology, geography, Earth science, geology, resource science, mathematics, nutrition, astronomy, biotechnology, engineering, computer and information technology.

<h2>Additional Information</h2>

<h2>Scientists</h2>

Scientists are people who study science.They use observation, experimentation and theory to collect facts and learn about a subject.They perform experiments and record their results which form the basis of science and the scientific knowledge around us.Scientists gain knowledge in the different fields of science by using specific ways and methods.

<h2>Laboratory</h2>

A laboratory or lab is a building or a part of building fitted with scientific equipment.

Scientists do experiments in labs.

Labs in schools and colleges are the classrooms where practical learning and demonstrations take place $.$

6 0

3 years ago