1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
mash [69]
3 years ago
14

Explain why multicellular organisms require a ventilation system??

Biology
2 answers:
Anuta_ua [19.1K]3 years ago
7 0
Ventilation maintains a steep concentration gradient, blood at the exchange surface usually has lower O2 and higher CO2 content than the air (of for fish, the water) at the exchange surface. This is what allows for diffusion of O2 into the blood and CO2 out of the blood. Multicellular organisms have a greater number of cells so will have a higher energy demand than single cellular organisms, this demand can only be met by allowing the cells to respire, a ventilation system brings oxygen molecules which are a raw product of respiration into the hemoglobin of the blood to be transported to tissues. As surface area : volume ratio is very low so if there was no ventilation system and the organism instead relied on exchange of materials through the exposed skin it would be very difficult to met the high energy demand as less O2 and CO2 would be able to be exchanged.
nikitadnepr [17]3 years ago
6 0

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.

You might be interested in
Looking at the diagram below, can you predict the tide time for the following day?
harina [27]

According to the graph, the times for high tide would be 1 AM and 1 PM.


The low tides would be at 7 AM and 8 PM.

5 0
3 years ago
Which of these is an example of quantitative data collection?
aivan3 [116]
I would say A. Quantitative data involves numbers and stuff like that. Unlike qualitative data, which involves pictures and not numerical data. I hope this helped.
5 0
3 years ago
Read 2 more answers
An examination of racial classifications from around the world indicates that Group of answer choices the best racial classifica
Vikki [24]

Answer:

the classification of racial types is an arbitrary, culturally specific process.

Explanation:

Racism can be defined as an act, practice or policy by an individual, group of people or institutions which typically involves promoting the ideas and belief that a race is superior in comparison with another. Thus, it simply means the believe that a particular race has dominance over another (an inferior race).

An examination of the classifications of races from around the world indicates that the classification of racial types such as Africans, Americans, Indians, Asians, Black-Americans, Hispanics, etc., is typically based on individual perception, not objective and an impulsive (arbitrary), culturally inclined or specific process.

This ultimately implies that, the classification of racial types is considered not to be based on any form of objective distinction but may be defined by a person's culture.

A culture can be defined as the general way of life of a group of people living together in a particular location or society.

Basically, culture comprises of beliefs, values, behaviors, language, dressing, cuisine, music, symbols, arts, social habits, knowledge, customs, laws pertaining to a particular group of people living together in a society.

7 0
3 years ago
Which of the following are not required for clot formation?
Gemiola [76]
C hope it helps you. Thanks and have a great day
7 0
3 years ago
Which statement best describes the relationship of photosynthesis and energy
sasho [114]

Answer:

photosynthesis is the way b plants get their energy

Explanation:

5 0
3 years ago
Other questions:
  • Eurokraytic cell cycle what stage is labeled c in the diagram
    12·1 answer
  • Help. Earth & space science B
    5·1 answer
  • What memorable line does taylor first utter in the presence of the apes?
    14·1 answer
  • How do animals store glucose? Where do they store it?
    11·1 answer
  • If a mutation in UASg prevents Gal4 from binding, a possible consequence is:
    10·1 answer
  • 4. What are tandem repeats?
    11·1 answer
  • Chemical weathering ___.
    7·2 answers
  • Tell whether the given processes occur in the mitochondria, cytoplasm, or chloroplast
    12·1 answer
  • What is true about Carbon facts
    11·1 answer
  • What creates the van Allen belts
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!