Unicellular organisms have unusual ways ofmoving. The euglena have tiny hair-like structures called flagella. The flagella beat in the water and move the cell forward.
Answer:
this would be an analog signal as is a constant movement of sound and light waves.
Explanation:
digital signal is more of measuring current and voltage in a circuit
true body is protected against harmful flu viruses by
Answer:
Soil
Explanation:
Ecological succession, which refers to the series of changes that occurs in an ecosystem over time, is of two types viz: primary succession and secondary succession. In primary succession, a new or barren area (usually a rocky surface) is colonized by organisms such as lichens called PIONEER SPECIES.
However, in secondary succession, an ecological disturbance such as natural disasters disrupt the ecosystem causing the area, which was made void, to be recolonized by organisms. Note that, despite the disturbances, a key factor which is SOIL is still present in the environment to sustain the growth of the recolonizing organisms in secondary succession
Explanation:
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