Energy is vital for living organisms is our fuel . if there is no energy formed we can t talk about life because things cells that are too little to experience things have this purpose to form energy in order for us to function.we need to see the human body in a constant dynamic because every second is breaking and forming Atp( the primary source of energy) and using that atp for everything moving thinking keeping us healthy ex transporting macromolecular substances like glucose that is lately broke down (glicolisis) and forms other molecules of AtP .And the cycle goes on.In my opinion is decisive because if there is no energy there is no life the other things could work if the the everyday light goes away the moon can still be there we can still be there but at some point we will dissapear.Energy is requiered for everything to occur it repairs builds and maintains body tissues without it the has no chance to survive .Because there will be no metabolic processes and no cycle of energy exchanges.
Explanation:
charles darwin proposed thoery of natural selection.he had collected imnumerable specimens of plant and animals.he published concept survival of fittest. while explaining he says that There is always competition for food.only those organism survive which shows adptations in various reasons. it thoery of natural selection.
There are some objections,
1. natural selection is not only factor responsible for evolution.
2. darwin did not mention uesful and useless modifications.
3. There is no explanation about slow and abrupt changes
Answer:
A hawk eats a snake, which has eaten a frog, which has eaten a grasshopper, which has eaten grass.
Explanation: A food web consists of all the food chains in a single ecosystem. Each living thing in an ecosystem is part of multiple food chains. Each food chain is one possible path that energy and nutrients may take as they move through the ecosystem.
Answer:The term "disease" refers to conditions that impair normal tissue function. For example, cystic fibrosis, atherosclerosis, and measles are all considered diseases. However, there are fundamentally different causes for each of these diseases. Cystic fibrosis (CF) is due to a specific genotype that results in impaired transport of chloride ions across cell membranes, leading to the production of abnormally thick mucus. Thus, CF is most accurately called a genetic or metabolic disease. Atherosclerosis, which can lead to heart attacks and strokes, may be considered a disease of aging, because it typically becomes a problem later in life after plaques of cholesterol have built up and partially blocked arteries. In contrast, measles is an infectious disease because it occurs when an individual contracts an outside agent, the measles virus. An infectious disease is a disease that is caused by the invasion of a host by agents whose activities harm the host's tissues (that is, they cause disease) and can be transmitted to other individuals (that is, they are infectious).
Salt accumulation in the runoff when the snow melts can cause loss of water from the roots of plants leading to the death of the plants. Sufficient amounts of salt could cause fresh water organisms harm in the same manner.
