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SVEN [57.7K]
3 years ago
5

The smallest unit of life is a _____, and all organisms have at least one.

Biology
1 answer:
Klio2033 [76]3 years ago
3 0

Answer:

cell

Explanation:

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What is the last structure of the air passageway in your lungs
Rasek [7]

Answer:

Bronchioles

Explanation:

You inhale through your nose and the air is filtered. It goes down the pharynx. It goes through the larynx. A "door" called the epiglottis opens during breathing. Then it enters the trachea. (windpipe) It goes through the bronchus. The tertiary bronchi branch into fine tubules called bronchioles, the last passageways for air. Air ends its pathway in the ________. (I bet you can guess because you're so smart!) They're surrounded by capillaries that connect the pulmonary arteries and veins. This enables the transfer of oxygen and carbon dioxide.

I hope this helped!!! Good luck on the test/quiz/project/homework/etc. you're working on! If you want I can give you a l!nk to the article I used. If not, it's fine too. Have a great day!

7 0
3 years ago
Which of the following correctly describes the structure and function of the cell wall in plants?
Jet001 [13]

Answer:

A

Explanation:

A major role of the cell wall is to form a framework for the cell to prevent over expansion.

6 0
2 years ago
What are the three types of homologies and the definitions?
olya-2409 [2.1K]

Answer:

hope this helps..

Explanation:

Dependent on the level of comparison four types of homology are defined: ( 1) Iterative ( = serial = homonomy), (2) ontogenetic, (3) di- or polymor- phic, and (4) supraspecific homology. ... Scientists have recently been paying renewed attention to the homology question.

Homology is the study of likeness, the similarity between species that results from inheritance of traits from a common ancestor. The study of similarities is broken up into three main categories: structural, developmental, and molecular homology.

6 0
3 years ago
The endosymbiotic theory proposes that eukaryotic cells arose as a result of large cells engulfing smaller, aerobic bacteria. th
lina2011 [118]

The organelle that provides evidence for this theory is the mitochondria and the chloroplast.

<h3>What is the endosymbiotic theory?</h3>

The endosymbiotic theory is the theory which describes how the eukaryotic cells arose from simple prokaryotic cells.

In the endosymbiotic theory states that when two prokaryotic cells with several abilities came together, one engulfed the other and existed in a symbiotic relationship that enabled  the cells to meet their needs for survival an growth.

The mitochondria and the chloroplast provides evidence for the endosymbiotic theory.

In conclusion the endosymbiotic theory describes  how eukaryotic cells arose from simple prokaryotic cells.

Learn more about endosymbiotic theory at: brainly.com/question/1698852

#SPJ1

8 0
1 year ago
Which of these choices is the primary purpose of the Ramsar Convention
MatroZZZ [7]

Answer:

As the choices are not given, so let's have a look at the Ramsar Convention in general.

Explanation:

In 1971, different countries around the globe signed a treaty in Ramsar, Iran for the conservation and sustainable usage of different wetlands around the world. The conservation of wetlands is important because the wetlands have a diversified flora and fauna. Destruction of the wetlands would result in many animals and plant species around the world to become extinct or endangered. Hence, this treaty was signed by different countries of the world as an understanding of the current situation of the wet lands.

3 0
3 years ago
Read 2 more answers
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