<span>gills; lungs
Sharks have spiracles, also for whales they have lungs. Moreover look at amphibians, they live near water sources because they need an area where they can lay and protect their eggs. The early stages of an amphibian's life is spent mostly underwater. This is where they mature and slowly develop into land organisms. In the early stage of their life, they breathe through their gills and they do not have limbs yet. As they grow gradual changes in their body structures are prominent, this process if called metamorphosis.</span>
All cells have at least three common features: a cell membrane, cytoplasm and DNA. Every cell has a selectively permeable cell membrane that allows some materials to pass in and out of the cell, and contains the water-based solution cytoplasm.
Answer:Structure. Norovirus capsid has a curvilinear shape (diameter 23-37 nm) and an amorphous structure, with no outer envelope. Norovirus has linear unfractionated RNA; The major structural proteins of the virus (VP1 and VP2) are monomeric and bind to the surface of host (infected) cells.
Explanation:
Answer:
1. slump ; 2. mudflow ; 3. landslide
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