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Evgen [1.6K]
3 years ago
9

Science force and motion please help

Biology
1 answer:
Ivanshal [37]3 years ago
8 0
I don’t know all of the questions, but I will answer as much as I can.

“What are the four types of friction?”

Answer: Static, sliding, rolling, and fluid friction:

“What is the difference between speed and velocity?”

Answer: Speed is the amount of time at which an object is moving. Velocity, on the other hand, is the rate and direction of that object’s movement.

Hope it helps ya a bit. ^^”
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the three kinds of nitrogenous wastes based on the energy required to synthesize them are arranged; Ammonia < urea < uric acid.

Nitrogenous wastes are the nitrogen compounds that organisms use to get rid of excess nitrogen. Ammonia, urea, and uric acid are the most common nitrogenous wastes that animals excrete. Protein metabolism generates all of these nitrogenous wastes.

Ammonia is the most toxic of these nitrogenous wastes, and it is the most common but requires the least energy. Urea is more harmful than uric acid, but it is less harmful than ammonia, reducing the amount of energy required to synthesize it. Uric acid is the least harmful, a non-poisonous particle with four nitrogen molecules. This is useful for birds and reptiles that lay hard eggs because it eliminates the most nitrogen, uses the least amount of water, and is not toxic. It also takes the most energy input.

Know more about urea here: brainly.com/question/14453829

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What happens in the postsynaptic neuron when excitatory neurotransmitters bind to receptors?
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it causes the depolarization of the target cell

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