Answer: a. increased energy efficiency
Explanation:
The three observations that could help an individual in distinguising whether the organism is a fish or not is that it should live under water as fish can't survive without water, another thing is that it should laid eggs when it comes to giving birth because when it does not lay eggs but produces a living organism normally without an egg, it is considered to be a mammal and lastly, the appearance it possess such as having gils or fins.
The first one according to the graph
Answer:
Both algae and phytoplankton
Explanation:
In the aquatic ecosystems, both algae and phytoplankton are producers and on land, plants are the primary producers.
The primary producers provides food for the whole ecosystem.
- During photosynthesis these producers are able to take up inorganic compounds and synthesize organic molecules.
- They use carbon dioxide and water in the presence of sunlight to produce glucose and oxygen gas
- The glucose is the food on which the ecosystem depends on
- Algae and phytoplankton produces food this way too.
Two atoms that contain the same number of protons but different neutrons are isotopes of the same element.their masses are different but they react the same way chemically
