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Ainat [17]
2 years ago
13

The ultimate purpose of respiration:

Biology
2 answers:
pshichka [43]2 years ago
7 0

Answer:

if ur asking which one of those answer choices is the right one, it's D! Deliver oxygen to every blood cell <3

Explanation:

This involves transport of oxygen from the lung to the tissues by means of the circulation of blood.

Mrac [35]2 years ago
5 0

Answer:

it’s d

Explanation:

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Name the area on a cladogram that represents the point from which the species split from the ancestor.
Rama09 [41]

Answer: Node

Explanation:

Cladograms are a graphical representation of the evolutionary relationship between organisms. These are usually shown as branches from a central point, which represents a common ancestor. In rooted cladograms, the branches are shown relative to the time elapsed since evolving from a common ancestor joined at the node, or point of divergence.

Evolution typically occurs after accumulating mutation, and natural selection of beneficial traits that confer greater chances for survival.

5 0
3 years ago
Can someone help me with that question
Nadya [2.5K]

Answer:

fine details such as the wings, legs and other fragile structures are preserved effectively giving us a window into how the preserved organism would have appeared in life. without the presence of amber, we wouldn't be able to examine a majority of small prehistoric organisms.

Explanation: amber is able to preserve a snapshot of the ancient world in ways that other forms of fossilization simple fails to do. while an imprint of a feather could be preserved in rock the actual feather could be captured within amber. Amber also preserves small organisms that otherwise would have been lost to time such as the insects seen in the photo above.  And much like the gecko seen below it can show us how these organisms truly appeared in life.

7 0
2 years ago
Who proposed biology to be studied as a single subject?
pishuonlain [190]

Answer:

Isaac Newton

Explanation:

아이작 뉴턴

kamsahamnida

5 0
2 years ago
Which will most likely cause an increase in the frequency of genetic mutations in
Aleksandr [31]

Answer:

Increased exposure to X-rays

Explanation:

X-rays shoot harmful radiation through your body, that's why when you go to the dentist or other places and they take a X-ray they give you a lead vest to protect your organs from unneeded radiation.

hope this helps :)  

8 0
3 years ago
Which of the following mechanisms is used by gram-negative bacteria to cross the blood-brain barrier?
NISA [10]

Answer:

Which of the following mechanisms is used by gram-negative bacteria to cross the blood-brain barrier? D) Inducing TNF

Explanation:

The blood brain barrier is a barrier formed by brain microvascular endothelial cells, astrocytes and pericytes. Pathogens can cross this barrier by using different mechanisms. The Tumor Necrosis Factor (TNF) is the way gram-negative bacteria cross this mentioned blood-brain barrier.

3 0
3 years ago
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