sweetie666 sweetie666

04-05-2018
Biology

contestada

Why don’t some small aquatic animals need a circulatory system?

Respuesta :

roslynatudoroae roslynatudoroae

04-05-2018

Living cells need to absorb nutrients and oxygen and to release waste products, such as carbon dioxide. Some animals are small enough to do this by diffusion from their surface and do not require a circulatory system.

Answer Link

Otras preguntas

What happened during the Reign of Terror in France? Suspected political opponents were jailed or executed. Guards fired on protestors outside Louis XVI's palac

Why does high population growth cause problems in countries with low economic growth? Select all that apply. High population growth can lead to poor education.

Railroad shipping rates blank. A. Were equal for all shippers B. Favored small shippers C. Favored large shippers D. None of the above

what is in the north region of argentina

How does DNA help with the transfer of genetic material from parents to offspring? A) Enzymes break down DNA, releasing amino acids that join to form proteins a

what does the public sector provide that the private sector does not?

Briefly describe two ways to formally amend the constitution

what’s the answer to this and working out

What’s the multiple of 9 that adds to 8

In a bag of marbles 12% were blue 18%were green and the rest were purple if the bag has 150 marbles how many were blue or green