4,064 Answered Questions for the topic biology

Biology

04/09/21

3. Determine the surface area, volume, and surface area to volume ratio for the following three blocks
0.5 cm x 0.5 cm x 6.0
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04/09/21

Calculate wavelength
Calculate the wavelength of: a.) an electron (9.10×10-31 kg) moving at a speed of 5.81×106 m/s (13000000 miles per hour).      b.) a baseball (0.140 kg) moving at a speed of 40.2 m/s... more
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Biology

04/09/21

Heart Action Potential

Why do action potentials flow through the muscle cells instead of directly from atria to ventricles?
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Biology

04/09/21

What is the difference between an open and closed circulatory system?

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04/08/21

How can we prevent the earth's average temperature from rising by more than 2 ° C to 2100?

someone explain in detail?
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Expert Answers •1
Biology

04/08/21

biology and punnett squares
In cats, green eyes (G) are dominant over blue eyes (g). If the mother cat is heterozygous for green eyes and the father cat has blue eyes, use the Punnett square to find what the genotypes and... more
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Biology

04/08/21

Endocrine System

Name an endocrine system and how it affects the body
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04/08/21

Catalyzes and the mechanism of action of the enzyme

show the reaction that catalyzes and the mechanism of action of the enzyme glyceraldehyde-3-phosphate dehydrogenase.What metabolic pathway does this reaction belong to?
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04/08/21

Bohr model calculations
Calculate the energy of an electron in the n = 3 level of a hydrogen atom.
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04/08/21

Bohr model calculations
Calculate the energy for the transition of an electron from the n = 8 level to the n = 7 level of a hydrogen atom.E =  ???JoulesIs this an absorption or an emission process?____???_____
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04/08/21

Confused and needing Help with a goof explanation so I understand this better PLEASE

KY.6.EE.9 *1 point
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04/08/21

Confused and needing Help with a goof explanation so I understand this better PLEASE

KY.6.EE.9 *1 point
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Expert Answers •2
Biology

04/07/21

Which type of reproduction-sexual or asexual-results in offspring with greater genetic variation
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Biology

04/07/21

Describe how animal organ systems are integrated to make a unified whole necessary for life
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Biology Genetics

04/06/21

Describe 2 of the main types of chromosomal rearrangements including one specific reason why each type could be harmful and redraw this chromosome to illustrate each type:
Describe 2 of the main types of chromosomal rearrangements including one specific reason why each type could be harmful and redraw this chromosome to illustrate each type:  K L M • N O P Q R
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04/06/21

Climate change Solutions

How can we prevent the earth's average temperature from rising by more than 2 ° C to 2100? Any detailed answer would be much appreciated!
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Biology

04/05/21

Water is said to have a high specific heat capacity which allows it to maintain the temperature of anything that is placed in it when there are slight changes in the temperature of the surroundings.
Can some explain if this is true or false & why
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Expert Answers •1

04/05/21

Ethalpy reactions
The following reaction is endothermic. MgCl2(s) Mg(s) + Cl2(g)    ΔH(1) = 641 kJ Calculate the enthalpy change for the reaction of the elements to form one mole... more
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04/05/21

Calculate enthalpy change
Given the following two reactions:(1)Pb(s) + Cl2(g)PbCl2(s)     H(1) = -359.4 kJ(2)Mg(s) + Cl2(g)MgCl2(s)     H(2) = -641.3 kJcalculate the enthalpy change for the following reaction:(3) Pb(s) +... more
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04/04/21

Calculate enthalpy
The following reaction is exothermic. N2(g)+H2(g)+3O2(g)=2HNO3(g) deltaH(1)=-270kjcalculate the enthalpy change for the reaction of the elements to form one mole of HNO3(g). 1/2N2(g)+1/2H2(g)+3/2... more
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Biology

04/02/21

What will happen to levels of ATP in a muscle cell of an individual that stops consuming carbohydrates and other sources of sugar in his diet? Select ALL that apply

What will happen to levels of ATP in a muscle cell of an individual that stops consuming carbohydrates and other sources of sugar in his diet? Select ALL that apply 1. ATP production levels drop to... more
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04/01/21

how do i convert 65±5 (Mean±SEM) mmol/g to nmol/g?
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Biology Forensics

03/31/21

Creating Y-STR Database
For a homework assignment, I'm asked to contribute toward the development of a Y-STR database of convicted offenders for the purpose of law enforcement.   I need to describe at least 2 key... more
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Biology Calculus

03/31/21

Once you’ve set different parameters for starting population size and per capita growth rate, set your starting population size to 100 and your per capita growth rate to 0.5.

Round your answer to the nearest whole number. What is your population size at time 7? biology/calc problem
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Biology

03/31/21

Biology Questions PLEASE HELP!!
Which type of reproduction produces offspring with more genetic variation.Sexual or asexual explain using meiosis and mitosis in your answer.
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