The double layer of fibrous tissue surrounding the heart is the

Ascientist discovers a new body between the orbit of neptune and the kuiper belt. the object is round and travels in an orbit around neptune with other space objects. the scientist claims that she has found a new dwarf planet. where is the scientist’s error?

What types of energy transfers and energy transportations are involved in the domino chain reaction?

Describe the function of the endomembrane system? what organelles are involved?