Over a million students use our free study notes to help them with their homework
Panama has acted as a geographical barrier, separating two populations of ancestral shrimp - one in the Pacific and one in the Caribbean Sea.Random mutations will occur in both populations.Natural selecti...
Many mitochondria - production of ATP during aerobic respiration which allows active transport to take place for uptake of ionsMany root hairs - Increases surface area for maximum diffusion La...
Thick, waxy cuticle - stops evaporation from the leavesStomata that are able to open and close through changes in guard cell turgor pressure- stops water loss by transpiration at night or when water avail...
Photosynthesis converts light energy from the sun to chemical energy stored as glucose, i.e. the plant can make its own food using energy from the sun. The glucose is used by the plant in the process of r...
Mitosis is the way how all cells (apart from the gametes - the ones associated with reproduction) divide. Produces 2 identical copies of the cells (known as daughter cells), which have exactly the...
←
50
51
52
53
54
→
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