Answer:
A. NADH and FADH2 both donate electrons at the same location.
Explanation:
In the respiratory chain, four large protein complexes inserted into the mitochondrial inner membrane transport NADH and FADH₂ electrons (formed in glycolysis and the Krebs cycle) to oxygen gas, reducing them to NAD⁺ and FAD, respectively.
These electrons have great affinity for oxygen gas and, when combined with it, reduce it to water molecules at the end of the reaction.
Oxygen gas effectively participates in cellular respiration at this stage, so its absence would imply interruption of the process.
NADH and FADH₂ electrons, when attracted to oxygen, travel a path through protein complexes, releasing energy in this process. 
The energy released by the NADH and FADH₂ electrons in the respiratory chain in theory yields <u>34</u> <u>ATP</u>, however, under normal conditions an average of 26 ATP molecules is formed.
If we consider that these 26 molecules are added to the two ATP formed in glycolysis and two ATP formed in the Krebs cycle, it can be said that cellular respiration reaches a maximum yield of 30 ATP per glucose molecule, although theoretically this number was 38 ATP per glucose molecule.
 
        
             
        
        
        
The answer could be any of the following:
* energy
* sugar
* carbohydrates
* (possibly even) food. 
        
             
        
        
        
Mutagen is an agent that causes DNA mutations. UVA radiation penetrates deep into the skin and acts as a mutagen. UV light is the most common source of radiation that affects DNA, but it is a weak radiation and it penetrates only the surface cells of your skin.
        
             
        
        
        
Kneel along with your left knee on the floor and your right leg at a 90-degree perspective in front of you. Put your hands on your proper knee and hold your back instantly. Keeping your left knee pressed to the floor, lean ahead into your proper hip even as squeezing the muscles to your left buttocks. maintain for 30 seconds.
No longer engaging in everyday bodily activity can result in weak hip flexors. Underuse of the hip muscles can cause the muscle to degenerate and become vulnerable, which is known as muscle atrophy.
The primary hip extensors consist of the gluteus maximus, posterior head of the adductor Magnus, and hamstrings. Within the anatomic role, the posterior head of the adductor Magnus has the best second arm for extension, observed intently by means of the semitendinosus.
Learn more about hamstrings here: brainly.com/question/25920220
#SPJ4
 
        
             
        
        
        
Answer:
10 units
Explanation:
Coyote is tertiary consumer which feed on secondary consumer such as snake. Grasses are the producer which has 10,000 units of energy. We know that only 10% of energy is passed from one trophic level to another and the remaining 90% is lost as  a form of heat energy. So only 1000 unit of energy is transferred to primary consumer. From primary to secondary consumer, only 100 units of energy is transferred and from secondary to tertiary consumer only 10 units of energy is transferred.