True
The definitions of positive don’t state any negative meanings, therefore it must be a completely “good” or “nice” meaning word
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Answer: Mechanical weathering breaks rocks into smaller pieces without changing their composition and chemical weathering breaks down rocks by forming new minerals that are stable at the Earth's surface.
Answer;
The similarity between gills and lungs is that both are sites for gaseous exchange in living organisms.
Explanation;
Gills is a site for gaseous exchange in fishes amphibians at some stage in life; while the lungs is a site of gaseous exchange in mammals and other organisms such as reptiles.
They both serve to bring in oxygen in the living things body and the eliminate carbon dioxide from the body; process of gaseous exchange.
However, they differ in a number of ways; for example, lungs are internal while gills are external , lungs are developed to breath in oxygen from the air, while gills are developed to get oxygen from water.
Answer:
Explanation:
Only archaebacteria are capable of methanogenesis
Archaebacteria who use other forms of cellular respiration also exist, but methane-producing cells are not found in Bacteria or Eukarya.
Unique cell membrane chemistry. Archaebacteria have cell membranes made of ether-linked phospholipids,
Firstly they are not membranes and they are villi's which increase the surface area during digestion
