Circulatory Systems
Akopọ
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.
Awọn Afojusun
- 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
Akọ̀wé Ẹ̀kọ́
O wa lori ohun elo Green Bridge
Gba ohun elo Green Bridge CBT sori foonu tabi kọmputa rẹ lati ri awọn akọsilẹ ẹkọ ni kikun, awọn ibeere adaṣe, ati diẹ sii.
Ìdánwò Ẹ̀kọ́
Oriire fun ipari ẹkọ lori Circulatory Systems. Ni bayi ti o ti ṣawari naa awọn imọran bọtini ati awọn imọran, o to akoko lati fi imọ rẹ si idanwo. Ẹka yii nfunni ni ọpọlọpọ awọn adaṣe awọn ibeere ti a ṣe lati fun oye rẹ lokun ati ṣe iranlọwọ fun ọ lati ṣe iwọn oye ohun elo naa.
Iwọ yoo pade adalu awọn iru ibeere, pẹlu awọn ibeere olumulo pupọ, awọn ibeere idahun kukuru, ati awọn ibeere iwe kikọ. Gbogbo ibeere kọọkan ni a ṣe pẹlu iṣaro lati ṣe ayẹwo awọn ẹya oriṣiriṣi ti imọ rẹ ati awọn ogbon ironu pataki.
Lo ise abala yii gege bi anfaani lati mu oye re lori koko-ọrọ naa lagbara ati lati ṣe idanimọ eyikeyi agbegbe ti o le nilo afikun ikẹkọ. Maṣe jẹ ki awọn italaya eyikeyi ti o ba pade da ọ lójú; dipo, wo wọn gẹgẹ bi awọn anfaani fun idagbasoke ati ilọsiwaju.
- 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
O wa lori ohun elo Green Bridge
Gba ohun elo Green Bridge CBT sori foonu tabi kọmputa rẹ lati ri awọn akọsilẹ ẹkọ ni kikun, awọn ibeere adaṣe, ati diẹ sii.
O wa lori ohun elo Green Bridge
Gba ohun elo Green Bridge CBT sori foonu tabi kọmputa rẹ lati ri awọn akọsilẹ ẹkọ ni kikun, awọn ibeere adaṣe, ati diẹ sii.
Awọn Iwe Itọsọna Ti a Gba Nimọran
Ṣe Adaṣe Awọn Ibeere Idanwo Adaṣe
Ṣe o fẹ ṣe adaṣe awọn ibeere idanwo adaṣe nipa Circulatory Systems? Ṣe igbasilẹ ohun elo Green Bridge CBT lati wọle si awọn ibeere idanwo adaṣe ati awọn ayẹwo adaṣe kikun fun koko-ọrọ yii.
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