Over a million students use our free study notes to help them with their homework
There are four heart valves in total. The triscuspid valve is between the right atrium and ventricle. The bicuspid valve is between the left atrium and ventricle. These are the atrioventricular valves and...
Insulin is a hormone that is produced by beta cells in the Islets of Langerhans in the pancreas. A hormone is a chemical substance that is transported in the blood and stimulates particular cells to perfo...
A useful mnemonic to remember the stages of mitosis is PMAT. Don’t forget that the cell spends most of its time in interphase, the phase where the DNA is replicated, before moving to mitosis.Prophase- chr...
The process in which mRNA is produced is called transcription.Firstly, DNA Helicase breaks Hydrogen bonds to unzip the DNA molecule and expose the base pairs. Then nucleotides enter through nuclear pores ...
During prophase 1, homologous chromosomes will pair up to form a bivalent, this is where crossing over can occur. Chromatids will twist around each other and will break and reform, resulting in crossing o...
←
49
50
51
52
53
→
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
