Answers:
#1:
The process that takes place in the stroma in both sunlight and darkness is the Calvin cycle. In sunlight and darkness the Calvin cycle produces a light dependent reaction which then produces ATP and NADPH. Even in darkness the process will still be able to undergo completion. If it has been dark for too long there will not be enough ATP and NADPH to continue sugar production.
#2:
Pyruvate: If there is any oxygen molecules produced in glycolysis will be passed to the Kreb cycle but when there isnt enough oxegen the transport chain wont run which mean fermentation will occur since the NADH molecules have nowhere to go.
NADH: Will go into electron transport.
ATP: Stores energy for a period of time.
#3:
Mitosis and cytokinesis both go through cell division and during mitosis chromatis divides into daughter cells meanwhile cytokinesis has one cell split into two. Without cytokinesis, mitiosis would still happen but only create two nucli in one cell and if cytokinesis happens the cell would die.
Answer:
A pure substance containing only one kind of ( atom )
Explanation:
Since it is one atom it is an element. An element is a pure substance that cannot be separated into two materials unlike a compound. This makes the substance pure. Like melting or cutting a gold bar into gold nuggets. It's still gold but it isn't the same shape but same density.
Hope this helps
- massmaster34
Answer:
Many scientists agree that the average temperature on Earth is increasing. What does this mean for the water cycle? Rising temperatures mean an increase in evaporation. This leads to an increase in condensation in the atmosphere.
Explanation:
<u>Mutualism</u>. Both species directly benefit from one another.
It was beneficial for northern Europeans to be lactose tolerant when lactose intolerance was more common in most other places because of the fact of the lactase mutation and natural refrigeration of the climate
<u>Explanation:</u>
The most of the places in the world was lactose intolerant as when a child is born, the baby is lactose tolerant and so uptakes as many lactose as needs for it but then while growing up, the enzyme to digest those lactose are lactase which are found to be decreasing in the adult and so adult becomes lactose intolerants.
But in the North Europe and some parts of Central Europe, the climate served to be the natural refrigerator and by the advent of mutation. Northern Europeans became lactose tolerant, as they tend to retain the lactase enzyme. This was assisted with the famine conditions which let the adult have milk as the only option of food and energy.
