Cell wall and chloroplast are two examples of structures which are found in plant cells but not in animal cells.
The ecosystem requires a constant input of energy because energy cannot be stored. The enrgy always gets converted for supporting life in the ecosystem. Some amount of energy is also lost during this conversion. So if there is not a constant supply of energy, then the ecosystem will ultimately breakdown. In case of humans, the energy is received by consuming food. The energy of the food geets converted to the enrgy that helps a human being to complete his daily chores. So energy is being lost at every step. To regain this energy the humans have to eat food regularly. This way the humans need a constant supply of energy to survive. It is the same in the case of all living things in the ecosystem.
IT IS TRUE
Horizontal, stream like movements of ocean water, that is caused by wind, and that occurs at or near the ocean's surface as ocean water changes from liquid to gas, it leaves behind solids, increasing salinity and density, which causes water to sink and become a Deep Current.
Answer:
Speciation
Explanation:
Speciation occurs when a group within a species separates from other members of its species and develops its own unique characteristics
Answer:
<u>False</u>
Explanation:
The number of valence electrons on an element is also the same or else it would be a different element.
