A. convenience equals enormous expense.
Things in smaller packages cost way more than things in larger packages, so it’s more cost effective if you buy a bigger bag and then just eat a little bit of it.
Adding nutrients to the soil allowed more sunflowers and more birch trees to sprout over the three-week period. Also, by adding nutrients, the sunflowers and birch trees that sprouted were able to grow taller than those without added nutrients
Answer:
d. it calms you down when you are in danger.
Explanation:
Ethics in science involves making (or rather abandoning) decisions which go against one's morals - so if scientists don't feel comfortable doing something because they feel it is wrong, it means there is ethics involved. Here are some of the issues where ethics is present:
1. animal testing - whether or not products should be tested on animals first
2. stem cell research - has to do with research on human embryos
Answer:
d. more permeable to sodium ions.
Explanation:
The binding of Acetylcholine with the receptors at motor end plate facilitate membrane permeability to sodium ions therefore opening of voltage gated channels for sodium ions.
Sodium ions diffused into the synapse of post synaptic neuron at the neuromuscular junction.
If the stimulus is up to threshold levels; more chemical(neurotransmitter) gated sodium channels opens, and sodium ions move into the synapse to depolarize the membrane with reversal of charges to generate action potential.
The continuous binding of Acetycholine , leads to permanent opening of sodium ions,and over excitation from depolarization. Acetycholinesterase enzymes breakdown Acetycholine to choline and Acetyl Co -A. These are recycle back to Acetycholiine