4,064 Answered Questions for the topic biology

06/09/21

4. As concentration increases, what happens to the number of ions in the solution? URGENT CHEMISTRY QUESTION
please help me with this chemistry concept and question.
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06/09/21

6. Explain to someone in 3-4 steps how to use pH paper to determine the pH of a substance:   Step 1 – Step 2- Step 3-
help me with this chemistry question
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06/09/21

How does the concentration of ions in a strong base differ from a weak base? CHEMISTRY URGENT
please help me explain this chemistry concept
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06/09/21

Which ions are most abundant in water? - Chemistry URGENT  
Please help me explain this chemistry question.
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Biology

06/09/21

How do environmental changes or genetic variations lead to increased diversity in organisms ?

May you also give a specific example? thank you
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Biology Genetics

06/08/21

Give the genotype of each wife and state whether or not she is colorblind.
Anthony, a colorblind person got married, divorced, and remarried. His and his first wife, Linda, has a colorblind son, a colorblind daughter, a normal son and a normal daughter. He and his current... more
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06/08/21

Sickle Cell Anemia Frequency and Malaria Effects
Sickle cell anemia is a genetically inherited autosomal recessive trait in which results in a condition that there are not enough healthy red blood cells to carry oxygen throughout the body due to... more
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Biology

06/08/21

Cross a female with blood type A and a male with heterozygous B blood type. Complete ratios (phenotypic and genotypic)
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Biology

06/08/21

A male with blood type B has a child with a woman who has blood type A. The child is blood type O. What is the genotype of the male and female?

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Biology

06/07/21

Explain how blood sugar levels are regulated using hormones (insulin and glucagon). Include an explanation of as to why regulating blood sugar levels through homeostatic mechanisms is significant
Can someone help me understand this
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Biology

06/07/21

What is the probability that two parents (one with genotype AAbbCcDdEE and one with genotype AaBbCCDDee) have an offspring with the genotype AAbbccDdEe?
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Biology Carboncycle

06/07/21

how carbon is cycled through living organisms. Make clear connections to the process of Photosynthesis and Cellular Respiration
Doing grade 9 biology and have a little bit of an issue fully understanding the carbon cycle. if you could help that would mean a lot!
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Biology Biochemistry

06/06/21

is simpler words how is atp used in active transport specifically in sodium potassium pump? and what is the goal of sodium potassium pump aside from maintaining the resting potential of membrane?
would mean a lot. thanks
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Biology

06/06/21

I need help with this. Can someone please help me.
Here is the question(s)...Protein synthesis actually begins in the nucleus when ___60___ transcribes ___61___. A single gene on the DNA molecule is copied. The process of copying this gene is... more
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06/04/21

atoms to grams of calcium
How many atoms of calcium are in 3456 grams of calcium? a) 5.19e25b) 2.30e-19c) 8.34e28d) 1.43e-22
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06/04/21

please if anyone can help

Select the missing reactant for the following combustion reaction2 _______________ + 15 O2 ---> 14 CO2 + 6 H2OGroup of answer choices
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06/04/21

science problem
How many grams of excess reactant is left over when 60 grams of NaCl reacts with 55 grams of Pb(NO3)2?A) 40 g B) 60 g C) 50 g D) 30 g
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06/04/21

Question this would be very useful

Which of the pH levels listed is the most acidic?Group of answer choicespH = 1pH = 4pH = 7pH = 14
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06/04/21

CHEMISRY problem I really need help :)

Which of the following will not conduct electricity when dissolved in water: NaCl, NaOH, HCl, C6H12O6A) C6H12O6B) NaCIC) NaOHD) HCI
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06/04/21

Balance the equation
Balance the equation___C3H8 + ____O2 --->___ CO2 + ____H2O
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06/04/21

Chemistry question any help would be appreciated :)

C2H4 + 3 O2 ----> 2 CO2 + 2 H2OIf you start with 45 grams of ethylene (C2H4), how many grams of carbon dioxide will be produced?Group of answer choicesA) 141.4 g CO2B) 178.9 g CO2C) 78.6 g CO2D)... more
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06/04/21

question for chemistry

Mg + 2 HNO3 ---> Mg(NO3)2 + H2If I start this reaction with 40.0 grams of magnesium and an excess of nitric acid (HNO3), how many grams of hydrogen gas will I produce? A) 3.3g H2B) 4.5 g H2C)... more
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06/04/21

Chemistry question please if anyone knows :)
_________ the temperature causes the kinetic energy to increase. Thus, molecules are moving _________ and colliding more _________. This causes the rate of reaction to _________.A) increasing,... more
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06/03/21

How do I measure radial growth of a fungi? Is it like measuring size of inhibition zone?
I'm a student researcher studying about antifungal activity. I measure the efficacy of the antifungal agent by the Percent Inhibition of Radial Growth (PIRG). However, I don't know how to measure... more
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06/03/21

URGENT- Please help me with honors chemistry molarity
what is the quantity of moles of solute in 145.6 L of 0.812 M sodium cyanide? 
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