15 points - which of the following is an indication that a planet may exist near a distant star? a) the star varies in temperature b) the star has a very slight back and forth motion c) it has a very strong gravity d) radio wave activity increases near the star i am guessing b

You need to make 500ml of 7h9(+) media with 1x adn and 30ug/ml of the antibiotic kanamycin. your stock solutions are 10x adn and 30mg/ml of kanamycin. the solvent is distilled water. how much of each component will you need to make the desired final solution?

Will mark brainliest if correct/available! which of the following statements is true? all plants need flowers to sexually reproduce. sexually reproduced offspring are identical to their parents. fertilization always occurs inside the female's body. a body cell has twice the number of chromosomes as an egg cell.

Make a claim about the factors that cause inherited genetic variations within populations. also make a claim about the effects of mutations.