Answer:
S- shaped spine, adducted hallux and formation of a calcaneous
Explanation:
- The S-shaped spine helps humans stand on two legs in an upright position rather than have to use 4 legs. It aligns and balances the skull allowing it to be upright.
- The adducted hallux is the big toe which has been aligned with the other toes , in primates the big toe is not adducted and is used much like the thumb is on a hand, to hold objects and climb trees. The big toe aids in balance as one stands on the flat ground
- The formation of the calcaneous (heel bone) also aids in balance for when humans stand upright.
Answer: type of organic molecule found in living things.
Explanation: Fats are made from lipid molecules. Lipids are long chains of carbon and hydrogen molecules.
HETEROTROPHS
Explanation:
Autotrophs are any organisms that are capable of producing their own food. For most, this is achieved by using light energy, water and carbon dioxide. Heterotrophs cannot produce they have to absorb.
Answer:
Explanation:
Most protist diseases in humans are caused by protozoa. Protozoa make humans sick when they become human parasites. Trypanosoma protozoa cause Chagas disease and sleeping sickness. Giardia protozoa cause giardiasis, and Plasmodium protozoa cause malaria.