Answer:
Phosphorus
Explanation:
idk amino acids contain carbon hydrogen oxygen and nitrogen as well as sulfur sometimes
nucleic acids contain phosphorus as well as carbon hydrogen and nitrogen
Description
DescriptionReflection is the change in direction of a wavefront at an interface between two different media so that the wavefront returns into the medium from which it originated. Common examples include the reflection of light, sound and water waves
It was formed from the remains of ancient plants and animals.
Answer:
A & C
Explanation:
Primary producers are always at the bottom of the food chain because they are the entry point of energy into the ecosystem. The producers are organisms that produce their own 'food' from abiotic factors and include photoautotrophs and chemoautotrophs. These organisms are then consumed by primary consumers who are subsequently consumed by secondary consumers who are subsequently consumed by tertiary consumers to decomposers. The number of consumers up the food chains can vary with ecososyems and can be an indication of how biodiverse they are. This is how energy and matter are passed up an ecosystem and recycled.
