4,347 Answered Questions for the topic Science

10/03/20

Pharmacology Nervous System Question 3
Does the Parasympatholytic increase, decrease, or has no effect on:Blood flow to skeletal musclesBlood GlucoseBlood PressureBronchial Smooth MuscleDigestionHeart RateInsulinMucus... more
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10/03/20

Pharmacology Nervous System Question 2
Does the Sympatholytic increase, decrease, or has no effect on:Blood flow to skeletal musclesBlood GlucoseBlood PressureBronchial Smooth MuscleDigestionHeart RateInsulinMucus SecretionPupilsSalivation more
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10/03/20

Pharamacology Nervous System Question
Does the Parasympathomimetic effect increase, decrease, or has no effect:Blood flow to skeletal musclesBlood GlucoseBlood Pressure Bronchial Smooth MuscleDigestion Heart Rate InsulinMucus... more
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10/02/20

Pharmacology Question
Does the Sympathomimetic System increase, decrease or have no effect on:Blood glucosebronchial smooth muscledigestioninsulinmucus secretionsalivation
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10/02/20

What is the reason for bacterial death in the cell culture? Will bacteria spontaneously die in human infection?

Discussing microbiology lab on bacterial growth curve
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Science

10/01/20

Biology & Ecosystems

Need some help on this question!! Thank you to whoever answers!! Have a great day:)Which of the following best describes how biodiversity contributes to the sustainability of a grassland... more
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09/29/20

What is the density of a substance if 10 g occupies 10 cm3? What do you think this substance is? Why? (using GRASS method)
this is for a canadian grade 9 academic science class
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09/29/20

Which ring will win the race to the bottom and why?
Suppose two rings are at the top of a ramp. The rings have the same mass, but one ring has a much larger radius than the other. Which ring will win the race to the bottom and why? (Hint: consider... more
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Science Physiology

09/29/20

What is the complete reflex loop for when someone sees something scary?
What is the reflex loop for when someone sees something scary? Receptor/sensor, input/afferent pathway, integrating center, etc. . .
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09/28/20

A sample of hydrogen gas has a volume of 4.4 L at a pressure of 800. torr. If the pressure decreases to 400. torr, what will the new volume be?
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Science

09/28/20

In which situation is the principle of cross-cutting relationships useful in determining relative age?
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Science Biology

09/27/20

How does the carbon, hydrogen and oxygen atoms in glucose and fructose combine to form sucrose?
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Science Biology

09/26/20

Urgent!!! Could someone please answer these questions? Thank you!
Enzymes and digestion questions: What happens in the mouth (Focus on enzymes)? What happens in the stomach (focus on enzymes)? What happens in the intestines (focus on enzymes)? What are... more
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Science Biology

09/26/20

Urgent!!! Could someone please answer these questions? Thank you!
How enzymes affect rate questions: What is activation energy? What happens during the transition state? How do the energy levels change throughout a reaction? How does increasing temperature... more
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Science Biology

09/26/20

Urgent!!! Could someone please answer these questions? Thank you!
Lock and Key Questions: What is a substrate? What is an enzyme? What are products? What is the induced fit hypothesis and what does it say about enzyme action? Why is the “induced fit” model... more
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Science Chemistry

09/26/20

The half-life of a certain radioactive element is 800 years. How old is an object if only 12.5% of the radioactive atoms in it remain?
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Science Math

09/25/20

How long will it take the officer to catch the thief?
A police officer is chasing a purse-snatcher down a street. The thief starts 9 meters ahead of the officer and can run 20 meters in 4 seconds(5 meters per second). The police officer can run 32... more
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Science

09/24/20

It's a science question
why doesn't a doppler detect waves immediately?
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09/24/20

A little aluminum boat (mass of 14.50 g) has a volume of 450.00 cm3. The boat is placed in a small pool of water and carefully filled with pennies. If each penny has a mass of 2.50 g.....
A little aluminum boat (mass of 14.50 g) has a volume of 450.00 cm3. The boat is placed in a small pool of water and carefully filled with pennies. If each penny has a mass of 2.50 g, how many... more
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Science Ecology

09/24/20

Summarize natural selection using the words population, individual, gene, mutation, evolve, survive and reproduce
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Science

09/24/20

Diamonds have a density of 3.5 g/cm3. What is the volume of a diamond that has a mass of 0.10 g?

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09/23/20

Need help with biology

How are the daily energy needs between a lion and zebra different?
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Science Chemistry

09/23/20

Eighth Grade Science
Heat energy, Q, is calculated by multiplying the mass of the object in grams, m, by the change of temperature, mΔT, and the specific heat, Cp, of the material.Q = mΔT(Cp) Calculate the heat lost... more
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09/22/20

Mercury metal is poured into a graduated cylinder that holds exactly 22.5 mL. The mercury used to fill the cylinder weighs 306.0 g. From this information, calculate the density of mercury.
Mercury metal is poured into a graduated cylinder that holds exactly 22.5 mL. The mercury used to fill the cylinder weighs 306.0 g. From this information, calculate the density of mercury.I know... more
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09/22/20

What is the magnitude of the total force between the bike tire and the road?
A physicist rides his bike around a corner of radius 21 meters at a steady speed of 7.5 m/sec. The combined mass of the physicist and the bike is 98 kg. The coefficient of static friction between... more
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