Ricardo is using polymerase chain reaction to quickly make copies of a segment of dna. ricardo needs to measure an exact amount of solution in order to place the solution in a test tube with the dna that is to be copied. which of the following tools should ricardo use to measure the solution? a. measuring cup b. micropipette c. scale d. a second test tube

Actual age your first developed of age well comparison age refers to absolute age true or false

Suppose you have monohybrid pea plants in your garden and find that they produce round seed to wrinkled seeds in the ratio of 3: 1. if the allele are designated (r & r) receptively. what is the probable genotypes of the round seeds which produced f 1 ? rr & rr rr only rr & rr rr only rr only

For the strategies below, decide whether they are best described as demand-side solutions or supply-side solutions to meeting human needs for fresh water. remember that a demand-side solution reduces demand for fresh water, whereas a supply-side solution increases the supply of fresh water. (a) damming a river to create a reservoir (b) desalinating seawater (c) a nation invading a neighboring country to access their rivers (d) raising water prices for consumers and businesses (e) providing tax breaks for companies that use less water (f) replacing inefficient irrigation with more-efficient drip irrigation to grow crops (g) requiring low-flow showerheads in all new homes