Explain why multicellular organisms require a ventilation system? ?
include reasons on
surface area to volume ratio
cells depp within the body
and number of cells

In multicellular organisms, the division of labor provided by these bodies grouped into specialized devices imposes a number of constraints.

One of the constraints is that it is necessary for all cells in the body to be well supplied with both nutrients and oxygen. The transition to multicellularity requires the establishment of a circulatory system and a respiratory system for the supply and purification systems for the disposal of waste.

The amount of oxygen required to breathe depends on:

Ratio surface / volume plus it is small and the intake by the respiratory system must be important.

The depth of the cells, which evolves proportionally with the oxygen supply required.

The number of cells that also evolves proportionally with the oxygen supply required.

1. a host loses nutrients to a parasite

2. a parasite only benefits when the host is alive (cause if the host dies the parasite dies with it )

3. producers to consumers

4. the tapeworm is a parasite

5. they convert energy from the sun (photosynthesis)

6. sunflower-robin (i think im 80% sure)

7. producer

8. consumer

9. prey

10. fresh water snails ( cause the green algea is the producer and the snails are the primary consumers and the small fish consumer so is the big fish)