In mutualism, both organisms benefit. In commensalism, one benefits and the other is unaffected; in parasitism, one benefits and the other is harmed. Some of these relationships are so close that we speak of the composite of two species as one unit; for example, we speak of the composite of algae and fungi as lichens
Answer:
False
Explanation:
Chief cells usually secrete pepsinogen, but the product does not related is to acidity.therefore, Whenever
HCl secreted by the parietal cells activate pepsinogen, the pepsinogen is converted into pepsin, and pepsin is an enzyme that acts on proteins.
NOTE:
The gastric chief cell is one of the cells in our stomach that brings about the release of pepsinogen and chymosin. Pepsinogen is activated into the body's digestive enzyme pepsin and the pepsin will have contact with acid that is produced by gastric parietal cells.
Pepsinogen is substance that is secreted into gastric juice from both mucous cells and chief cells. After secretion pepsinogen is activated into the active protease pepsin by the stomach acid.the protease pepsin helps the stomach's ability to initiate digestion of proteins.
assuming this is plate tectonics: At divergent boundaries where the plates pull apart, magma from the earth's mantle fills in the spaces created.
The uterus receives eggs and supports the growing embryos development until birth. Rats have a uterus consisting of the right and left cornua (horns) referred to as a bicornuate uterus. This structure enables the rat to have multiple offspring. The horns of the uterus come together to form the vagina.
Answer:
- Modern camels are more related to Camelops than to Aepycamelus.
- Pliauchenia and Oxydactylus may share similar feautres.
- Procamelus and Stenomylous may share similar features.
Explanation:
The chart given explains how the camels are evolved between Eocene (33 myo) and Pleistocene.
- According to the chart, modern-day camels (Camelus) are a closer phylogenetic relative of Camelops because they are clustered together in the Pleistocene age section. However, Aepycamelus is last recorded in the Upper Miocene and later became extinct (or no record is found in Pliocene and Pleistocene).
- Pliauchenia and Oxydactylus have a single ancestor "Protylopus" which can be seen in the Eocene age. Although Protylopus were branched to two species in upper Miocene, it is not difficult to believe that they share many genetic similarities (features) in both lineages.
- Similarly, Procamelus and Stenomylous are the descendants of Poebrotherium and got apart at the end of the Oligocene, therefore, they will also share several features similar to each other.
