D. To help oxygen get into blood vessels
Answer:
If wolfs were absent from their environment the food they eat like rabbits for example would be overabundant and eat all the plants and not leave any food left for other animals that need it and those animals would die.
Explanation:
Answer:
Biennial
Explanation:
Biennial are those crops which takes two years to complete its life cycle i. e. vegetative stage and reproductive stage. First stage is the vegetative stage in which vegetative parts such as roots, stems, leaves and branches are formed. Second stage is reproductive stage in which flowers formed first and after that seeds are produced due to fertilization. Seeds are the babies of plants.
