CIE IGCSE Biology: 復(fù)習(xí)筆記：11.1.1 Features of Gas Exchange Surfaces Features of Gas Exchange Surfaces The surfaces where gas exchange occurs in an organism are very different and different organi...
CIE IGCSE Biology: 復(fù)習(xí)筆記：10.1.8 Cholera Cholera Cholera causes diarrhoea Diarrhoea is the?loss of watery faeces from the anus If it is severe and continues for a long time, it?can lead to death...
CIE IGCSE Biology: 復(fù)習(xí)筆記：10.1.7 Passive Immunity & Breastfeeding Passive Immunity & Breastfeeding Passive immunity is a?fast-acting, short-term defence?against a pathogen by antibodies ...
CIE IGCSE Biology: 復(fù)習(xí)筆記：10.1.6 Preventing the Spread of Disease: Extended Preventing the Spread of Disease: Extended If?a large enough percentage?of the population is vaccinated, it?provides p...
CIE IGCSE Biology: 復(fù)習(xí)筆記：10.1.5 Vaccination: Extended Vaccination: Extended Vaccinations give?protection against specific diseases?and?boost the body’s defence against infection?from pathogens ...
CIE IGCSE Biology: 復(fù)習(xí)筆記：10.1.4 Antigens & Antibodies: Extended Antigens & Antibodies: Extended All cells have proteins and other substances projecting from their cell membrane These ar...
CIE IGCSE Biology: 復(fù)習(xí)筆記：10.1.3 Active Immunity: Extended Active Immunity: Extended Making antibodies and developing memory cells for future response to infection is known as?active immunity Th...
CIE IGCSE Biology: 復(fù)習(xí)筆記：10.1.2 Controlling the Spread of Disease Controlling the Spread of Disease The simplest way to prevent disease is to?stop pathogens from spreading This means using simp...
CIE IGCSE Biology: 復(fù)習(xí)筆記：10.1.1 Pathogens & Barriers Pathogens A pathogen is a?disease-causing organism Pathogens are passed on from one host to another and therefore the diseases they caus...
CIE IGCSE Biology: 復(fù)習(xí)筆記：9.1.17 Conversion of Fibrinogen: Extended Conversion of Fibrinogen: Extended Platelets are?fragments of cells which are involved in blood clotting?and forming scabs whe...
CIE IGCSE Biology: 復(fù)習(xí)筆記：9.1.16 White Blood Cells: Extended Lymphocytes & Phagocytes: Extended White blood cells are part of the body’s?immune system, defending against infection by pathoge...
本月12日，2022年BPhO Round 1考試結(jié)束，這一牛劍都點(diǎn)名的重量級的物理學(xué)術(shù)活動(dòng)，大家對考試情況十分關(guān)心。好多同學(xué)反映今年的題目是去年的幾何級數(shù)的難度，能做對42分估計(jì)就是超級金獎(jiǎng)，能做對36分基本上就是金...
