English, 05.12.2020 01:00 FlamingSky
ReWRITE this in YOUR OWN WORDS: Living things must be capable of transporting nutrients, wastes, and gases to and from cells. Single-celled organisms use their cell surface as a point of exchange with the outside environment. Multicellular organisms have developed transport and circulatory systems to deliver oxygen and food to cells and remove carbon dioxide and metabolic wastes. Sponges are the simplest animals, yet even they have a transport system. Seawater is the medium of transport and is propelled in and out of the sponge by ciliary action. Simple animals, such as the hydra and planaria (shown in Figure 1), lack specialized organs such as hearts and blood vessels, instead of using their skin as an exchange point for materials. This, however, limits the size an animal can attain. To become larger, they need specialized organs and organ systems.
Answers: 3
English, 21.06.2019 23:00, jamisoncameron000
According to the study, a is when you string one quote after another in an essay without connecting them
Answers: 1
English, 22.06.2019 00:00, Jordan0423
What is the meaning of "full tide" as it is used in this sentence? before i could explain to her the differences of language in this world, she was embarked on the full tide of another subject. a long and involved argument an inaccurate representation a detailed and lively discussion an uncontrollable flood
Answers: 1
English, 22.06.2019 03:00, banuelos90016
200 words discuss the theme of outcasts in these chapters in at least two hundred words. what does it mean that the church takes in people that the clan rejects? how is nwoye an outcast? how does the clan treat the missionaries as outcasts?
Answers: 2
English, 22.06.2019 06:50, erstaabi000
Which best explains the role that the theme of freedom plays in this excerpt
Answers: 2
ReWRITE this in YOUR OWN WORDS:
Living things must be capable of transporting nutrients, wastes, an...
Advanced Placement (AP), 18.01.2021 14:00
Mathematics, 18.01.2021 14:00