No as lysosomes also can be found in plant cells and other organisms.
Answer:
It shows which consumes which. A basic food chain.
Explanation:
Wherever the arrowhead is pointed at, shows that it consumes the specie next to the nock. For example, the arrow on the left has its arrowhead directed at the butterfly. This means that the butterfly consumes the flower. The next arrowhead points at the bird, which means that this bird consumes the butterfly.
Answer:
b. did not initially have a mutually beneficial relationship with their hosts, but later evolved one
Explanation:
Initially, the host cell engulfed bacteria as food material. It did not have a mutually beneficial relationship with it. However, many engulfed bacteria had several advantages which could also benefit the host cell. For example, some of them could synthesis food material by the process of photosynthesis. The host cell then formed symbiotic relationship with these bacteria. They survived inside the host cell and in return they also supplied the host with prepared food material. Eventually this paved the way for endosymbiosis and origin of many organelles like chloroplast and mitochondria.
Answer:
1 is A 2 is D 3 is B 4 is C
Explanation:
have a nice day!!
Answer:
The cilia in the upper respiratory tract move mucus down toward the pharynx whereas the cilia in the lower respiratory tract move them up toward the pharynx.
Explanation:
Through the internal nares, the air enters nasopharynx from the nasal cavity. This air has dust-laden mucus. The nasopharynx is lined with ciliated pseudostratified columnar epithelium. These cilia move the mucus down toward the most inferior part of the pharynx. The lining of the larynx inferior to the vocal folds is made up of ciliated pseudostratified columnar epithelium and have ciliated columnar cells, goblet cells, and basal cells.
The goblet cells serve to produce and secrete mucus. The mucus from goblet cells helps trap dust that was not removed in the upper passages. Therefore, the cilia in the upper respiratory tract move mucus and trapped particles down toward the pharynx whereas the cilia in the lower respiratory tract move them up toward the pharynx.
