Question

a hummingbird may need to consume up to 50% of its body weight in sugar each day, just to meet its energy needs. some of this energy is stored and some is used for metabolic activities, but much of the energy is

1. converted into amino acids needed for the production of starch
2. released as heat energy back into the hummingbirds environment
3. changed into radiant energy, which can be used by plants for photosynthesis
4. used to synthesize inorganic compounds necessary for cellular respiration

Explanation:

In biological metabolism, a significant portion of the energy from consumed sugar is released as heat energy as a by - product of metabolic reactions. A hummingbird's metabolic processes convert chemical energy from sugar into usable energy for its activities, and heat is a common waste product. Amino acids are not made from sugar for starch production, radiant energy from a hummingbird isn't used by plants for photosynthesis, and sugar isn't used to synthesize inorganic compounds for cellular respiration.

Answer:

1. released as heat energy back into the hummingbird's environment