The hind legs of the frog are adapted for leaping and swimming. They have strong extensor muscles. When these muscles contract, the limbs extend thrusting the foot against the water or land. The frog's forelimbs are shorter and used to steer the frog while swimming and to absorb shock while landing.
Answer:
Frog - The frog has three respiratory surfaces on its body that it uses to exchange gas with the surroundings: the skin, in the lungs and on the lining of the mouth. ... A frog may also breathe much like a human, by taking air in through their nostrils and down into their lungs.
Tadpole - Tadpoles open their mouths as they swim and take in water. As the mouth closes, muscles transfer the water to the gills. These consist of thin membranes called lamellae, which take oxygen from the water where it enters the blood stream through the process of diffusion.
Answer:
option C
Explanation:
Adaptation is the physical or behavioural characteristic of an organism.that is both external or internal.
Answer:
Each trophic level represents the beings of an ecosystem and their amount of energy.
Explanation:
In a food chain, the highest energy level is made up of producers (e.g. chlorophyll plants), with the rest of the ecosystem dependent on their energy, captured from sunlight and stored in organic compounds.
The next trophic level belongs to primary consumers (herbivores) and then secondary consumers (carnivores).
From the producers, only part of the amount of energy is passed from one trophic level to the other, In other words, the higher the trophic level, the less energy is absorbed.
In an energy pyramid, each area is represented by a trophic level (from a food chain) of size proportional to its amount of energy.
The elements of the food chain are represented with the producers at the base (higher energy) and the consumers of each trophic level above.
As explained earlier, the amount of energy absorbed at the highest levels is low and therefore insufficient to support another trophic level.
