Please help me I really can’t figure it out.

Fossils of ancestors of the modern horses show a small 4-toed almost dog-like browsing animal named eohippus over time the horses got larger lost toes and changed to a grazing diet what is the best explanation of why this change occurred

When the body has a weakened immune system, the production of antibodies is increased.

Anemophilous is pollination by wind. true or false