Why can humans not rely on the transport method used in small organisms

1 answer:

8 0

This is because human have a much larger surface area. Small organisms have a small surface area and thus simple diffusion meets their transport requirements. As the size of the organisms increases, its surface area to volume ratio decreases. This means it would take days for molecules to diffuse through a large animal, so humans have a circulatory system with a pump to transport materials quickly around their bodies. Therefore due to their large size, humans require a specialized transport system.

You might be interested in

A bird flies by moving its wings up and down. Which two systems are most directly responsible for the movement of a bird's wings

aleksklad [387]

A. Skeletal and muscular
the other three don’t have to do with this type of internal movement though as the abdominal region and internal organs don’t have to do with this, A is the only possible answer

4 0

3 years ago

Read 2 more answers

When a warm front is approaching, what happens?

andreev551 [17]

Answer:

The air mass behind a warm front is likely to be warmer and more moist than the one before the front. If a warm front is approaching, light rain or light winter precipitation is possible before and as the front passes. Behind the front, expect clearing skies, warmer temperatures and higher relative humdities.

Explanation:

(︶^︶)

4 0

2 years ago

Which of the following would a Romanticism author most likely write about?

Stella [2.4K]

<span> Romanticism author usually are famous for the picture they sketch with their words about nature and beauty
so He would like to write about the
</span><span>the beauty of a weeping willow
</span>so i conclude option C is correct
hope it helps

6 0

3 years ago

Read 2 more answers

In a desert the climate is......... and ........

earnstyle [38]

In a desert, the climate is “hot” and “dry”.

7 0

2 years ago

Read 2 more answers

Volume is defined as the amount of mass that an object has? True or false

maria [59]

Answer:

False

Explanation:

Mass and volume are two different quantities. In fact:

- Mass is a scalar quantity representing the "amount of matter" contained in a certain substance. It is measured in kilograms (kg), which is one of the 7 fundamental SI units.

- Volume is a scalar quantity representing the amount of "three-dimensional space" occupied by an object or a substance. It is measured in cubic meters ( $m^3$ ).

Therefore, mass and volume are two different quantities. They are related through another quantity called density, given by:

$d=\frac{m}{V}$

where

m is the mass

V is the volume

So the density of a substance represents the amount of mass contained in a certain volume of the substance.

3 0

3 years ago