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Biology

1 answer:

fredd [130]4 years ago

6 0

Answer:

The correct option is<em> C) Organism A is a plant because the cells have chloroplast.</em>

Explanation:

As we can see, the organism in the slide A is multi-cellular and has chloroplast present in its cells. This means that the specimen is most likely taken from a plant. Hence, A is the correct option.

Other options, like option B, is false because nucleus can be present in animal and plant cells both. Option D is false because the cell cannot be differentiated on the basis of cytoplasm as every organism possesses a cytoplasm in which the organelles float.

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What is the definition of a hypothesis ?

mixer [17]

A hypothesis is an educated guess while using reasonable thinking, about the answer to a scientific question. Although it is not proof in an experiment, it is the predicted outcome of the experimentation. It can either be supported or not supported at all, but it depends on the data gathered.

6 0

4 years ago

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Why is your respiratory system necessary for your body to live

Sonja [21]

Answer:

The respiratory system is necessary for an organism's body to live because it introduces oxygen-rich air, which is needed to perform vital functions, while at the same time promoting the elimination of carbon dioxide.

Explanation:

Oxygen (O₂) is necessary for life because it participates in the process of cellular respiration, a mechanism that allows the oxidation of glucose to form energy in the form of ATP.

The respiratory system is made up of a set of organs that carry air into the body and facilitate gas exchange, i.e. the entry of O₂ into the blood and the elimination of potentially harmful carbon dioxide (CO₂).

This exchange of gases occurs in structures called pulmonary alveoli, whose surface is located in relation to the pulmonary capillary vessels.

The entry of air into the lungs brings O₂ to the alveoli, which will diffuse into the pulmonary capillary for the process of hematosis or oxygenation of the blood.
CO₂, a product of metabolism, leaves the capillary to the alveoli, to join the air that will be expelled during expiration.

Both O₂ and CO₂ require a transport molecule in the blood, red blood cell hemoglobin, which binds the gases and allows them to be transported to and from the tissues.

Learn more:

Exchange of respiratory gases brainly.com/question/4569375