CIE IGCSE Biology: 复习笔记：9.1.8 Functioning of the Heart: Extended Functioning of the Heart: Extended Deoxygenated blood?coming from the body flows into the?right atrium?via the?vena cava Once t...
CIE IGCSE Biology: 复习笔记：9.1.7 Identifying Structures in the Heart: Extended Identifying Structures in the Heart: Extended The?ventricles?have thicker muscle walls than the atria as they are pu...
CIE IGCSE Biology: 复习笔记：9.1.6 Coronary Heart Disease Coronary Heart Disease The coronary arteries The heart is made of?muscle cells?that need their own supply of blood to deliver oxygen, gluco...
2022年AMC10/12B卷考完了，中国赛区作为全球最后一个进行考试的主要赛区也正式拉下帷幕！同学们纷纷前来反馈，对题目难度的感叹各有不同！ 大家关心的AMC10 B卷答案来了！同学们可以核对一下答案，预测一下自己的...
CIE IGCSE Biology: 复习笔记：9.1.5 Investigating Effect of Physical Activity on Heart Rate Investigating Effect of Physical Activity on Heart Rate It is relatively simple to investigate the effects...
CIE IGCSE Biology: 复习笔记：9.1.4 Monitoring Activity of the Heart Monitoring Activity of the Heart Heart activity can be monitored by using an?ECG, measuring?pulse rate?or?listening to the sounds...
CIE IGCSE Biology: 复习笔记：9.1.2 Circulatory System: Extended Circulatory Systems of Fish & Mammals: Extended Circulatory systems in Fish Fish have a?two-chambered heart?and a?single c...
2022年AMC10/12B卷考完了，中国赛区作为全球最后一个进行考试的主要赛区也正式拉下帷幕，大家都感觉考得怎么样呢，今年的AMC10/12A卷、B卷的难度如何？ 大家关心的AMC12 B卷真题+答案来了！同学们可以核对一下答...
CIE IGCSE Biology: 复习笔记：9.1.1 Circulatory System Circulatory System The circulatory system is a system of?blood vessels with a pump and valves?to ensure?one-way flow?of blood An example of a c...
CIE IGCSE Biology: 复习笔记：8.1.8 Translocation Translocation The soluble products of photosynthesis are?sugars (mainly sucrose) and amino acids These are transported around the plant in the?phloe...
CIE IGCSE Biology: 复习笔记：8.1.7 Explaining the Effects of Temperature, Wind Speed & Humidity: Extended Explaining the Effects of Temperature, Wind Speed & Humidity: Extended Wind speed, ...
CIE IGCSE Biology: 复习笔记：8.1.6 Transpiration Stream: Extended Water Vapour Loss: Extended Evaporation?takes place from the surfaces of spongy mesophyll cells The?many interconnecting air spaces...
