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weqwewe [10]
3 years ago
11

construct a model of gas exchange that shows interactions among: air sacs (alveoli) of the lungs, capillaries, artery, vein, red

blood cell, and body cell. Include the gases oxygen (O2) and carbon dioxide (CO2), as well as arterial blood and venous blood, in your model. All these structures must be labeled or annotated in your model.
Biology
1 answer:
Vanyuwa [196]3 years ago
8 0

Answer:

................................

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Can somebody help me please. thanks
Grace [21]
Claim: No tools to discover the impending Cell Theory.

Reasoning:
Schleiden and Schwann, as well as Virchow, are generally seen as the founders of the cell theory, due to their pioneering scientific work in the 1800s. The unified cell theory states that: all living things are composed of one or more cells; the cell is the basic unit of life; and new cells arise from existing cells.

Evidence: The cell theory has many complexities and is of importance due to its affect to nearly every aspect of biology, from our comprehension of life & death, managing diseases, cycles and etc. But early scientists had no tools to study cells. They didn't even know about them. It took the invention of the microscope to view them and to begin an understanding of cells.
(Two Dutch spectacle-makers and father-and-son team, Hans and Zacharias Janssen, create the first microscope.) Matthias Schleiden observed that all plants were made of cells from the microscope and Theodor Schwann observed that all animals were also made of cells. Rudolf Virchow observed that cells only come from other cells Virchow saw cells dividing and added that living cells arise only from other living cells. These ideas led to cell theory, which states that all organisms are made of cells, all life functions occur in cells, and all cells come from other cells.
3 0
3 years ago
Coal is best used as a<br> Fuel<br> Paint<br> Fertilizer <br> Conductor
11111nata11111 [884]

Answer:

A. Fuel.

Explanation:

Coal is extensively used as a fuel in many countries for the production of electricity. When coal is heated, the heat energy is used to convert the liquid water into steam which is used to move turbines in the electric power plant. When these turbines moves, the electricity is produced. This fossil fuel is also used for warming of rooms and cooking delicious foods.

3 0
3 years ago
The environment is vital for the survival of living beings. give reasons​
makvit [3.9K]

Answer:

It is the necessity of the living organisms to increase their number in order to maintain the continuity of the species. Reproduction is the process through which one organism give rise to a similar organism of its own kind. It is one of the most important characteristics of the living organism.

___________________________________

<h3>Please mark me as Brainlist</h3>
4 0
3 years ago
Would strontium-90 be useful for determining the age of fossils
netineya [11]
False. Strontium 90 has a half life of only 30 years, and as millions of years pass, about the time fossils have been around, most if not all of any strontium would have decayed.
4 0
3 years ago
Kendra watches a television commercial for a new alternative medicine. She is interested in the medicine, but she is unsure if i
dlinn [17]
D.many experimental trials with results that support the claims
4 0
3 years ago
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