Which is the source of variations in a population of organisms? No files or links 8th Grade. Please help ASAP.
A- Changes in enviroment
B- Changes in genes
C- The interaction of genes with an enviroment
D- The interaction of individuals with an enviroment

Anyone know how to do this? If so PLZ HELP ASAP 7)You are asked to solve 12x 18 = 126. Which three statements are true?A)First, subtract 126 from both sides.B)First, add 18 to both sides.12x = 144D)x=9.Ex = 12 BELOW IS THE PROBLEM A chemistry student heated 2.255 g of oxygen gas in the presence of 5.145 What does your point of view add to your research project?a. It makes people want to learn more about your topic.b. All of these are true.c. It makes your opinions more believable.d. It helps people see you as more reliable. enter the value for x that makes the equation 4x-2+3x-7 true If you weigh 690 N on the earth, what would be your weight on the surface of a neutron star that has the same mass as our sun and a diameter of 15.0 km ? Take the mass of the sun to be ms = 1.991030 kg , the gravitational constant to be G = 6.671011 Nm2/kg2 , and the free-fall acceleration at the earth's surface to be g = 9.8 m/s2 . Express your weight wstar in newtons. riverview soccer team won 10 games and drawn 2 out of 18 games so far this season. what is the probability they will lose their next game duscuss four social issues that you know. Use pictures WILL GIVE BRAINLIEST, NO LINKSFind the area of the polygon. Which of the following is a fixed cost for a company that sells greeting cards online and mails the printed cards to customers? A firm has current assets that could be sold for their book value of $22 million. The book value of its fixed assets is $60 million, but they could be sold for $90 million today. The firm has total debt with a book value of $40 million, but interest rate declines have caused the market value of the debt to increase to $50 million. What is this firm's market-to-book ratio calculate the volume of the prism by first finding the total number of half unit cubes that will fill it.There are 8 half unit cubes in every unit cube pls help guys this is my exam Estimate 719 274. Round each number first. what is a Cestrum Nocturnum Which expression is equivalent to -8 - (-12)8 - 12 -8 + 12-8 - 12-8 (8+12) Sade used the two blocks pictured to build a tower. What is the TOTAL VOLUME of the two blocks for this entire tower? * By what year was cotton the most important, and why?Must be 5-7 sentences! I give Brainliest! Please no linksOh, and feel free to use AmericanYawp if you guys need to.Just please don't use Goo gle! Thanks! Which rule describes the composition of transformations that maps triangle BCD to triangle B""C""D""? What is 5 11/10 simplified