What causes chemical weathering?
a.
damage caused by animals and plants
c.
natural acids
b.
ice wedging
d.
physical factors

Name the glands associated with human digestive system

The fascicles of the deltoid are ; the fascicles of the pectoralis parallel; bipennate fusiform; unipennate multipennate; triangular bipennate; fusiform

Crossing over and independent assortment are important activities that occur during meiosis. what is the significance of these activities