hope this helps
I do think that they close to not allow too much of either water or air from entering.
the hollow tube allows water to flow easily.
https://www.bbc.co.uk/bitesize/guides/z28g7p3/revision/1
Explanation:
How widespread is asexual reproduction in planets an compared to animals which methods of asexual reproduction occur in both animals and plants
The outer core<span> of the Earth is a fluid layer about 2,300 km thick and composed of mostly iron and nickel. It that lies above Earth's solid inner </span>core<span> and below its mantle. </span>
Answer: Option A.
The electrons are being shared between the carbon and oxygen atoms.
Explanation:The electrons are being shared between the carbon and oxygen atoms because each oxygen share four electrons with the central carbon, therefore carbon atoms have 8 electrons that is shared with oxygen. The oxygen have two shared pairs in double bond and two lone pairs in non bonding. Carbon and oxygen form covalent bond. This satisfies the octet rule because the electrons are shared in both oxygen and carbon octet.
In a carbon dioxide molecule (O=C=O),
<h2>
Answer</h2>
Tertiary Consumers get least amount of the energy.
<h2>
Explanation</h2>
In an ecological pyramid less energy is available to organisms in the upper level because each organism releases some of the chemical energy as food and to the air as thermal energy .Therefore primary consumers get almost 10% of autotrophs prduced energy. The second consumers in the pyramid get 1% from primary consumer. In the case of tertiary consumers, they get only 0.1%. Hence the top consumer of a food pyramid receives the least energy.
