Answer:
A scientific hypothesis must be testable, and;
A scientific hypothesis must be falsifiable.
Explanation:
I looked it up o-o sorry if its wrong. :3
Answer:
Option C, It mandates the clean-up of abandoned hazardous waste sites.
Explanation:
A superfund was a programme launched by federal government in America to clean up hazardous and abandoned waste sites. The different sites that are managed under this programme are called as superfund scheme. It is also known as "Comprehensive Environmental Response, Compensation, and Liability Act, 1980"
Based on the hazardous ranking evaluated by the EIA team, CERCLA status of the site is determined . The site with highest score was dealt on priority basis.
Hence, option C is correct.
I may be wrong but I think it’s the second one. They speed up reactions, and there’s a certain enzyme for a certain reaction.
Answer:
1.Continuous diffusion of negatively charged ions into the postsynaptic neurons , <u>which leads to continuous reversal of charges (hyperpolarization) and therefore continuous firing of action potential</u>
2. Inhibition of hydrolytic enzymes e.g (acetycholinesterase) that metabolize activities of cholinergic neurotransmitters e,g acetycholine at post synaptic cleft. leading to firing of action potential.
Explanation:
Neuron whose dendrites transmits action potential to the neuromuscular junction is called presynaptic neuron. While neuron that transmit action potential away from the neuronal synaptic junction, or from the neuromuscular junction to the cell body of adjacent neuron or to effectors (gland and muscles) are called post synaptic neuron.
The more negatively charged ions that diffused into the post synsptic neuron, the more depolarization, and the greater the frequency of action potential produced
The inhibition of activities of hydrolytic enzyme which metabolize cholinergic neurotransmitter leads to continuous excitatory activities of cholinergic neurotransmitters on the receptors at the postsynaptic neuron, and the more action potential
