look at the photo, it wouldn't let me type it, sorry :-/
Answer:
The history of the human evolution can be studied by the fossil and DNA evidence. The similarities and advancement in certain characters has revealed the human evolution.
Different evidences like change in the diet, locomotion, brain size, walking ability as compared with the present species and species appeared 6 million years ago. The human genetics evidence and different paintings explain the culture of earlier homo species.The H. sapiens species has highly advance character that help them to survive than any other hominid species. The neanderthals extinction might occur due to their aggressive behavior, low social ability and their large cranial size.
1. tiny sacs within the lungs which increase the surface available for gas exchange = alveoli
2. a digestive enzyme that breaks down starches and glycogen into sugars = amylase
3. the two thin-walled chambers that receive blood into the heart from the veins = atria
4. the two tubes into which the trachea divide to go into each lung
= primary bronchi
5. a tiny vessel through which diffusion takes place between the blood and the body tissues
= capillary
6. a mass of nerve tissue not part of the brain = ganglion
Answer:
its either A or D.I remeber learning about this..Hope that helps
Answer:
4. Membrane and proteins secreted by the cell
Explanation:
Endoplasmic reticulum (ER) is one of the organelle that makes up the endomembrane system of eukaryotes. The ER is of two types viz: rough endoplasmic reticulum (RER) and smooth endoplasmic reticulum (SER).
The RER is called "rough" because of the ribosome organelles that are attached to its surface. The attachment of this ribosomes (site of protein synthesis) also defines its function. The RER is principally involved in the production of protein. Hence, the Rough Endoplasmic Reticulum functions mainly in the production of membrane and proteins secreted by the cell.
