They would most likely also become extinct, since they require them to "Fix the nitrogen" during photosynthesis, they have a "You need me, I need you" kind of thing. One can't live without the other.
There could be several orgins
Answer A:
The food chain can be drawn as follows:
Carrots
↓
Rabbits
↓
Snakes
↓
Eagles
Answer B:
The animals in the second trophic level are prey to the animal of the third trophic level. The energy which is stored in the rabbits will be received by the snakes of the third trophic level when a snake will consume a rabbit. However, only 10% of the energy will pass from the rabbits to the snakes.
Answer:
The first stage is the egg stage. Eggs are usually laid in or near water. A frog can lay thousands of eggs at once. The eggs are laid in large groups. There are covered in jelly which makes them slippery. The jelly protects them from other animals eating the eggs.
The second stage is the tadpole stage. A tadpole hatches from the egg. The tadpole breathes using gills and moves like a fish. It uses its long tail to swim. Tadpoles eat tiny water plants.
The third stage is the froglet stage. It grows lungs and legs. Its gills disappear. Its tail gets shorter until it disappears too. The froglet swims to the top of the water to breath.
The last stage is the adult stage. A frog can leave the water now and live on land. It eats insects, worms and snails. Mother frogs return to the water to lay eggs. the air.
C. The nuclear envelope contains the nucleus and forms a barrier between it and the cytoplasm
