I think that the answer is 2 but the plants have more volume and more total weight than the seeds
Answer:
I believe this is a pacemaker. It controls the heart when it starts to fail.
Explanation:
Well considering birds follow humane rules, their selection and environment around them being thriving could effect their songs in a positive way. While a bird with a low selection of environmental stuff around them would effect their songs in a bad way giving off a more down manner.
Answer: Elevated ridges of tissue, called gyri (singular: gyrus), separated by shallow groves called sulci (singular: sulcus) mark nearly the entire surface of the cerebral hemispheres.