Over a million students use our free study notes to help them with their homework
Enzymes are proteins that catalyze nearly all reactions that go on in your body that would otherwise be too slow for survival. The substances or molecules that enzymes ca...
Kidney dialysis
When the concentration of urine is low, the blood will reabsorb more water from the collecting duct. This is via the action of ADH increasing the permeability of the collecting duct walls (via aquaporins)...
The Bowman’s capsule, part of the filtration unit that removes glucose, salt, water, amino acids and urea out of the blood into the nephron.
Populations can still have low levels of genetic diversity if they have never been hunted. This can happen because the population is very small and isolated from other populations. Small populations may i...
←
644
645
646
647
648
→
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