國外學(xué)歷學(xué)位認(rèn)證需要什么材料？
在提前準(zhǔn)備海外留學(xué)前，同學(xué)們就能夠在教育部教育涉外監(jiān)管信息網(wǎng)（jsj.moe.gov.cn）對想要報考的學(xué)校進(jìn)行查詢。進(jìn)入網(wǎng)站后首頁選擇“國外院校”輸入查詢的國家，能夠查看被認(rèn)證的學(xué)校名單。國外學(xué)歷學(xué)位認(rèn)證需要什...
AQA A Level Biology復(fù)習(xí)筆記5.2.1 Mitochondria & the Need for Energy
Structure & Function of the Mitochondria Mitochondria are rod-shaped organelles 0.5 - 1.0 μm in diameter They are the site of aerobic respiration in eukaryotic cells The function of mitochondri...
AQA A Level Biology復(fù)習(xí)筆記5.1.1 Chloroplast Structures & their Functions
Chloroplast Structures & their Functions Chloroplasts are the?organelles?in plant cells where?photosynthesis?occurs Each chloroplast is surrounded by a?double-membrane envelope Each of the enve...
AQA A Level Biology復(fù)習(xí)筆記4.6.1 Biodiversity Within a Community
Biodiversity Biodiversity can be thought of as a study of all the?variation?that exists within and between all forms of life Biodiversity looks at the range and variety of genes, species and habita...
AQA A Level Biology復(fù)習(xí)筆記4.5.1 Courtship
Courtship Organisms belong to the?same species?if they interbreed in their natural habitat to produce?fertile offspring The process of successful interbreeding or mating is preceded by some form of...
AQA A Level Biology復(fù)習(xí)筆記4.4.1 Genetic Diversity
Genetic Diversity Organisms of the same species have very similar genomes, but two individuals (even twins) will have differences between their DNA base sequences Considering the size of genomes, t...
AQA A Level Biology復(fù)習(xí)筆記4.3.1 Genetic Mutations
Genetic Mutations A?gene mutation?is a change in the sequence of base pairs in a DNA molecule that may result in an altered polypeptide Mutations occur?continuously As the DNA base sequence determi...
AQA A Level Biology復(fù)習(xí)筆記4.2.1 The Genome
The Genome A gene is a length of DNA that codes for a polypeptide/protein A?genome?is the complete set of?genes?present in a cell The full genome is present within every cell of an organism, but no...
AQA A Level Biology復(fù)習(xí)筆記4.1.1 Prokaryotic DNA
DNA in Prokaryotes The DNA in prokaryotic cells is significantly different from the DNA found in eukaryotic cells “Prokaryote” means “before the nucleus” The DNA is double-stranded Prokaryotes poss...
AQA A Level Biology復(fù)習(xí)筆記3.6.1 Water Transport in the Xylem
Water & Mineral Ion Transport: Pathways & Mechanisms Within a plant?mineral ions?and?organic compounds?(eg. sucrose) are transported by being?dissolved in water. The?dissolved mineral ions?...
開放式課程是什么？有哪些美國大學(xué)提供了開放式課程體系？
申請大學(xué)前，大家會結(jié)合很多因素來做綜合考慮，大學(xué)課程的靈活性也是其中一項指標(biāo)。 有些同學(xué)在選專業(yè)時非常糾結(jié)，雖然喜歡這個專業(yè)，但擔(dān)心某一門必修課成為自己的短板。如何才能讓這些學(xué)生在自己擅長的領(lǐng)域嶄露...
AQA A Level Biology復(fù)習(xí)筆記3.5.1 Mammalian Circulation
Blood Circulation in Mammals The need for a circulatory system The cells of all living organisms need a constant supply of?reactants for metabolism, e.g. oxygen and glucose Single celled organisms ...
