Answer:
Both cones and rods participate in dark adaptation, slowly increasing their sensitivity to light in a dim environment. Cones adapt faster, so the first few minutes of adaptation reflect cone-mediated vision.
Answer:
6 water molecules (and technically sunlight/energy)
Explanation:
The inputs of photosynthesis are water and carbon dioxide (and energy); water is used in the light-dependent reactions, and carbon dioxide is used in the light-independent. The water has to be there to replace the lost electrons in the chlorophyll that leave the thylakoids after being excited by the solar energy.
Answer:
The gastrointestinal tract comprises of Mouth-Esophagus-Stomach-Small intestine-Colon-Rectum.
Liver, pancreas and gallbladder are solid organs of digestive system.
Explanation:
Digestion is the process involved in the conversion of large complex food molecules into smaller nutrients that can be used by body cells for survival and carry out their function. The digestive system comprises of various subsequent organs that digest the food.
- Digestion starts in mouth where salivary glands digest the carbohydrates.
- The food moves from mouth to stomach through alimentary canal known as esophagus. It includes peristalsis movements.
- The stomach mixes the food with digestive juices and move the chyme to small intestine.
- The small intestine mixes the food with juices secreted from pancreas, liver and intestine and pass it to large intestine.
- The large intestine digest the water content from indigested food and pass the reamining to rectum.
- The rectum store the undigested food and excrete it through anus.
The reason for why celery stalk firms in water is because of its hypotonic environment and the salt content transfers into the celery stalk which makes the cell firm and significantly bigger.
