Explanation:
deoxyribonucleic acid (DNA)
Answer:
during the Cambrian Period of the Paleozoic Era.
Explanation:
The Paleozoic is the earliest era (of three) of the Phanerozoic Eon and is composed of six geologic periods: the Cambrian, Ordovician, Silurian, Devonian, Carboniferous, and Permian (in that order from earliest to the latest). Fish first appeared about 530 million years ago during the Cambrian explosion.
Lower esophageal sphincter! <span />
Explanation:
The niche of the plant is the role of the organism in the ecosystem. A plant's niche is essentially what the plant does in the environment.
- It entails the interaction of the plant with biotic factors of the ecosystem such as other plants and the animals.
- It also include the interaction of the plant with the abiotic factors in the ecosystem such as the soll, air, water e.t.c
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Answer AND Explanation:
Very often, one type of organism or species in an ecosystem happens to be the same food source for other types of consumers. The different food chains that exist in an ecosystem therefore form a complex network called food web. Food webs are more complex than food chains and therefore there can be more than one primary producer thus increasing the flow of energy an ecosystem.