B) rice, indigo, and tobacco
C) sugar cane, cotton, and peanuts
D) pecans, peanuts, soybeans, and corn
Answer:
the answer is D
Explanation:
likely reason for this?
A. Viruses attract antibodies in the atmosphere.
B. Viruses require a low atmospheric pressure.
C. Viruses are hosts for bacteria that eventually
destroy them.
D. Viruses are dependent on host cells of living
organisms.
Answer:
D
Explanation:
Without a host a virus is without key nutrients to survive
Golden algae
Diatoms
None of the above
Answer:
The correct answer will be diatoms.
Explanation:
Diatoms are photosynthesizing micro-algae found in both marine and freshwater usually hard and rough in appearance due to deposition of silica in their cell walls.
They live in both photic and planktic region of the ocean and in both unicellular to colonial forms and form the major part of the planktons.
Their large number of species counts for about 20,000 and new species being discovered every year and their reproduction through simple cell division makes the most numerous unicellular algae in the oceans
Thus, diatoms is the correct answer.
If neurotransmitter x remains in the synaptic cleft for a long time, the following outcomes are possible:
Prolonged depolarization: Continuous binding of the neurotransmitter to the receptor site of the ligand-gated sodium channel can cause prolonged depolarization of the postsynaptic membrane, leading to sustained neuronal signaling.
Desensitization: Prolonged exposure of the receptor site to the neurotransmitter can cause desensitization, where the receptor becomes unresponsive to the neurotransmitter, reducing the strength of the neuronal signal.
Reuptake: The neurotransmitter may be taken back up into the presynaptic neuron through reuptake transporters, reducing the concentration of the neurotransmitter in the synaptic cleft and reducing the strength of the neuronal signal.
Degradation: The neurotransmitter may be degraded by enzymes in the synaptic cleft, reducing the concentration of the neurotransmitter and the strength of the neuronal signal.
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