A. external
These types of signals are observed when there is a cut on the body. The epidermal cells lose contact with one another and divide faster until they are in contact once again. After they come into contact, division slows down again.
Answer:
Because the child was vaccinated against this disease, the germs are not able to travel from one person to the other, and the family in this case, is less likely to get the disease. Even his siblings, that didn't get the vaccine, will get some protection from getting sick. This is known as community immunity.
Explanation:
Answer:
There are not too many disadvantages of endoskeleton .
This is why most large animal around have them.
one large animal has one of the vunerability animals face without exoskeleton.
Explanation:
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1. 6CO2 + H2O -----> C6H12O6 + 02
2. The idea of photosynthesis or light dependent reactions is to convert solar/light energy into chemical energy by the form of ATP and NADPH. CO2 and Water are consumed and react to release Glucose and 02. Approximately 36-38 ATP produced.
3. Water is the source of hydrogen atoms in the glucose (sugar) created by the photosynthesis reaction.
4 .
Step 1) The light absorbed by chlorophyll causes a transfer of electrons and H+ from H20 molecules already present. This causes the H20 to split into molecular 0xygen (02) and a H+ ion.
Step 2.) The O2 is released (we breathe it) and the H+ bonds to NADP+ creating NADPH
Step 3) ATP is formed through photophosphorylation. (ADP gets a phosphate group added to it creating ATP)
Step 4.) The NADPH and the ATP created here go on to fuel the reactions in the second part of photosynthesis - The Calvin Cycle
5. The Calvin cycle is a metabolic process that uses the carbon from carbon dioxide, along with energy in the form of ATP, to produce sugar.
A G3P molecule contains three fixed carbon atoms, so it takes two G3Ps to build a six-carbon glucose molecule. It would take six turns of the cycle.
6. To help synthesize carbohydrates for energy
7. In fixation, the first stage of the Calvin cycle, light-independent reactions are initiated; CO2 is fixed from an inorganic to an organic molecule. In the second stage, ATP and NADPH are used to reduce 3-PGA into G3P; then ATP and NADPH are converted to ADP and NADP +, respectively
