Over a million students use our free study notes to help them with their homework
The funtion of the heart is to supply the body with oxygenated blood. In humans this is done by use of a double circulatory system. This means that the blood enters the heart twice before it is pumped to ...
Transcription occurs in the nucleus of the cell.The enzyme DNA helicase catalyses the 'unzipping' or splitting of the two DNA chains in the region of the gene by catalysing the breaking of the hydrogen bo...
Every organism has a tropic relationship in a food chain. Producers are at the bottom of the food chain and they are autotrophs, meaning they get their nutrition through sunlight via photosynthesis, for e...
yeast cells produce ethanol whereas muscle cells produce lactic acid as a by-product yeast cells produce CO2, muscle cells do not they both produce small amounts of energy
←
179
180
181
182
183
→
Internet Safety
Payment Security
Cyber
Essentials
Comprehensive K-12 personalized learning
Immersive learning for 25 languages
Trusted tutors for 300 subjects
35,000 worksheets, games, and lesson plans
Adaptive learning for English vocabulary
Fast and accurate language certification
Essential reference for synonyms and antonyms
Comprehensive resource for word definitions and usage
Spanish-English dictionary, translator, and learning resources
French-English dictionary, translator, and learning
Diccionario ingles-espanol, traductor y sitio de apremdizaje
Fun educational games for kids
