Answer:
Option (e).
Explanation:
Enzymes may be defined as the biocatalyst that are used during the metabolic reaction of the body. Most of the enzymes are proteinaceous in nature.
The main function of the enzyme is to lowers the activation energy of the reaction. The lowering of the activation energy reduces the energy barrier and substrate can be converted into the product easily. Hence, enzymes also increases the rate of a reaction.
Thus, the correct answer is option (e).
The spermatid is a circular cell containing a nucleus with DNA not too compacted,
Golgi apparatus, centriole mitochondria. When spermatid go through spermiogenesis all these components will form the spermatozoon.
Spermatozoa have a tail(formed by one centriole), DNA more condensed and an acrosomal cap (formed by the Golgi apparatus).
Answer:
The sun is a star, so it maintains its mass at a constant value and its circular shape does not change, this being a celestial body.
Answer:
The average kinetic energy of the molecules is proportional to absolute temperature. At any given temperature, the molecules of all gases have the same average kinetic energy.
Explanation:
When heat is added to a substance, the molecules and atoms vibrate faster. As atoms vibrate faster, the space between atoms increases. The motion and spacing of the particles determines the state of matter of the substance. Solids, liquids and gases all expand when heat is added.
D. North Sea herring, which also eat copepods
