Over a million students use our free study notes to help them with their homework
A leaky heart valve is called valve regurgitation and is caused by the valves not completely closing. Any valve in the heart can have a regurgitation whether that is the aortic, mitral, pulmonary or the t...
Blood glucose concentration is monitored and controlled by the pancreas (1 Mark)If blood glucose is too high then the Pancreas produces the hormone Insulin (1 Mark)From beta cells (1 Mark)This results in ...
Plants are adapted to survive dry conditions in the following ways: A decrease in surface area of the leaf, such as that found in the rolled-up leaf/spike in cactuses. This decreases the area from w...
Vaccines contain a safe form(weakened or small sample, a dead sample) of a disease causing micro-organism.The white blood cells produce the antibodies to destroy the invading pathogen.The memory cells can...
Insulin acts a key to open the way for glucose to enter cells (hepatocytes, muscles and brain cells)Hepatocytes absorbs more glucose from blood. Glucose converted to glycogen- for storage...
←
2
3
4
5
6
→
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
