Mr. goldsmith suggested that animals must capture energy from their environment. an example of this would be
a rabbit eating grass
a lion running
mice sleeping
a flying squirrel landing on a branch

The correct answer is (a) A rabbit eating grass.

The green plants that make food by the process of photosynthesis is the ultimate source of energy. When the rabbit is eating  grass, it will derive energy from it. Green plants is the main source of energy for herbivores animals. Any function of the body such as sleeping, jumping, running requires energy and it is obtained from the food that an organism eats.

answer: - b cells

explanation: -

so, the b cells mediate their action by identifying the antigens present on the surface of the pathogens and then producing antibodies in return to mediate its effect.

the oldest known insects are believed to live around 400 millions ago as suggested by the fossil records.   some plants having woody stems also evolved during this time.

after the evolution of insects the first four legged species or the tetrapods evolved in shallow freshwater habitats from the intermediate species approximately 397 million years ago. the tetrapods went on conquering the land giving rise to amphibians, reptiles, mammals and birds.

the major split in tetrapods first occurred 340 million years ago branching off from amphibians.

363 million years ago when the carboniferous period began the insects started roaming on land and taking flights, following which the four limbed tetrapods adapted in the terrestrial habitat.