The abiotic environment consists of non-living things. So, rocks, temperature and water are part of the abiotic environment.
Answer:
Lack a nucleus
DNA is found in the Nucleoid
They have a cell wall
Explanation:
The journey of the food through the digestive system will actually digest the food. The rest will be given out as feces.
<h3><u>Explanation:</u></h3>
The digestive system actually consists of digestive tract and Digestive glands. The processes that are associated with digestive system is - ingestion, digestion, absorption, assimilation and egestion.
The food that is taken is first smashed and chewed into a rough bolus by mixing with saliva. The salivary amylase slightly digests the starch into dextrin.
Then the food is engulfed through the oesophagus into stomach. Inside stomach, the food is mixed with an enzyme pepsin and HCl. Pepsin digests the proteins into peptones and peptides. The food is converted into a bolus and transported into duodenum.
In duodenum, there are several enzymes from small intestine and pancreas breaks the fats into fatty acids, proteins into peptides and starch into carbohydrates like glucose. They are absorbed and the undigested substances are left over ad feces.
C. Student B and D
Hope that helps!
Answer:
Lack of diversity = higher chance of extinction
high levels of diversity = higher chance of survival
Explanation:
The probable reasons behind the extinction of some Caminalcules are:
The ratio of males and females were not equal so that there were natural fight between male Caminalcules to get a female. This was one of the cause for lowering the population leading to extinction.
The excessive short-life of these Caminalcules was one of the main reason for their extinction as it is more difficult to real organisms because there would be an inherent bias against observing these species in fossil aseemblegs.
5. The two vestigial structures of Caminalcules were ear muscles and tail bones.