Answer:
The preferable statement will be - D.
D. They show a transitional form between fish and land-dwelling vertebrates.
Explanation:
From the given information we know that the fossil of that type of animal has scales, fins, gills, lungs, a full set of ribs, and limb bones.
This indicates some things such as,
- There is a high chance that the animal was capable of living in both land surface and water.
- Scales, fins, and gills indicate that they were like fish or water vertebrates.
- But lungs, a full set of ribs, and limb indicates that they are showing a transitional form between water and land-vertebrates.
The cell would dissolve in water
Answer: true
Explaining: they are typically buried on the surface
This is true. Urea carries the bloodstream to your kidneys which then transport waste along with water to form urine.
Answer:
D) lowering the energy for activation.
Explanation:
Just like chemical catalysts that accelerate the rate of chemical reactions, enzymes are biological catalysts that accelerate the rate of biochemical reactions.
Majorly, a catalyst works by lowering the activation energy required for a specific reaction. The lower the activation energy for a reaction, the faster the rate of that particular reaction.
Hence, an enzyme accelerates the rate of reaction by lowering activation energy of the reaction.
