Circulatory Systems
Gbogbo ọrọ náà
Every one of your cells needs a constant delivery of oxygen and food and a constant removal of waste. With billions of cells, diffusion alone is far too slow, so animals use a circulatory system: blood, driven by a pump through a network of vessels, with valves to keep it flowing one way.
In this lesson you will learn what a circulatory system is. Extended students will compare the single circulation of a fish with the double circulation of a mammal, and discover why passing the blood through the heart twice gives mammals a real advantage.
Ebumnobi
- Describe the circulatory system as a system of blood vessels with a pump and valves to ensure one-way flow of blood
- [Supplement] Describe the single circulation of a fish
- [Supplement] Describe the double circulation of a mammal
- [Supplement] Explain the advantages of a double circulation
Akọmọ Ojú-ẹkọ
Ọ dị na ngwa Green Bridge
Budata ngwa Green Bridge CBT na ekwentị maọbụ kọmputa gị iji nweta akwụkwọ ndụmọdụ zuru oke, ajụjụ mmụta, na ndị ọzọ.
Ayẹwo Ẹkọ
Ekele diri gi maka imecha ihe karịrị na Circulatory Systems. Ugbu a na ị na-enyochakwa isi echiche na echiche ndị dị mkpa, ọ bụ oge iji nwalee ihe ị ma. Ngwa a na-enye ụdị ajụjụ ọmụmụ dị iche iche emebere iji kwado nghọta gị wee nyere gị aka ịmata otú ị ghọtara ihe ndị a kụziri.
Ị ga-ahụ ngwakọta nke ụdị ajụjụ dị iche iche, gụnyere ajụjụ chọrọ ịhọrọ otu n’ime ọtụtụ azịza, ajụjụ chọrọ mkpirisi azịza, na ajụjụ ede ede. A na-arụpụta ajụjụ ọ bụla nke ọma iji nwalee akụkụ dị iche iche nke ihe ọmụma gị na nkà nke ịtụgharị uche.
Jiri akụkụ a nke nyocha ka ohere iji kụziere ihe ị matara banyere isiokwu ahụ ma chọpụta ebe ọ bụla ị nwere ike ịchọ ọmụmụ ihe ọzọ. Ekwela ka nsogbu ọ bụla ị na-eche ihu mee ka ị daa mba; kama, lee ha anya dị ka ohere maka ịzụlite onwe gị na imeziwanye.
- A circulatory system consists of blood vessels, valves and a: A. lung B. pump C. kidney D. gill Answer: B
- [Supplement] In a single circulation, the blood passes through the heart: A. twice per circuit B. once per circuit C. three times per circuit D. never Answer: B
- [Supplement] A double circulation is found in a: A. fish B. mammal C. flatworm D. jellyfish Answer: B
- [Supplement] The main advantage of a double circulation is that blood reaches the body at: A. low pressure B. high pressure C. low temperature D. high humidity Answer: B
- Valves in a circulatory system ensure that blood: A. flows in one direction B. carries more oxygen C. moves by diffusion D. stays in the gills Answer: A
Ọ dị na ngwa Green Bridge
Budata ngwa Green Bridge CBT na ekwentị maọbụ kọmputa gị iji nweta akwụkwọ ndụmọdụ zuru oke, ajụjụ mmụta, na ndị ọzọ.
Ọ dị na ngwa Green Bridge
Budata ngwa Green Bridge CBT na ekwentị maọbụ kọmputa gị iji nweta akwụkwọ ndụmọdụ zuru oke, ajụjụ mmụta, na ndị ọzọ.
Àwọn Ìwé Tó Dáa Láti Kà
Meecha Ajụjụ Ule Ọmarịcha
Ị chọrọ ime ajụjụ ule ọmarịcha gbasara Circulatory Systems? Budata ngwa Green Bridge CBT iji nweta ajụjụ ule ọmarịcha na nyocha zuru ezu gbasara isiokwu a.
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