Over a million students use our free study notes to help them with their homework
Enzymes: Enzymes are biological catalysts, meaning they speed up the rate of the reaction without being used up. An example of an enzyme is amylase, which is produced by the saliva...
White blood cells can have different roles and are important for protecting the body against pathogens. They can ingest a pathogen and destroy it, some produce antitoxins...
Bacteria release toxins to poison and damage cells, leading to symptoms like vomiting and diarrhoea.
When a plant is watered, water moves into the plant by osmosis (the diffusion of water), this means that water moves into the cells causing them to become turgid. When the plant is not being watered, wate...
Gene = the portion of DNA coding for a particular proteinAllele = one of the alternative forms of a gene
←
130
131
132
133
134
→
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
