O’Neill Pass is a deep canyon which has lots of shade at different times of the day. Propose one hypothesis that would explain why there are more dark-colored rock pocket mice in O’Neill Pass even though the soil color is light. Use an “If...then….because” format. Article: Rock pocket mice live in the intense heat of the desert southwest United States in intensely hot environments. Rock
pocket mice primarily eat seeds, though they have been know to also
consume insects. These nocturnal animals make burrows in soil close
to, or under rocks, which they use to escape owls, their main predator,
store food and as homes for their young. The breeding season of the
rock pocket mouse spans a few weeks from early February to the end of
March; litters are typically between 3 and 6 pups.
Rock pocket mice are an excellent example of natural selection. Two
scientists Charles Darwin and Alfred Russell Wallace independently
proposed natural selection. Natural selection states that organisms
whose phenotype is well suited to their environment have a greater
chance of reproductive success (having healthy babies) and passing their
genes on to the next generation.

Which osmotic and ionic strategies must marine teleost fishes employ?

What are the types of mutations, and how does each alter the encoded protein? college level answer

For your initial isolation of the bacterium, you simply needed to grow enough of it that you could identify some of its more general features. thus, you used a complex nutrient agar that would allow for the growth of almost any bacterial species. different bacterial species often have very specific requirements for life. this is a fact that you can utilize when you are trying to identify the bacterium to the species level. growth conditions that will permit the growth of one species but not another may allow you to select which one you would like to culture. you can utilize different selective/differential media that allow for the growth of only one type of bacteria (e. g., either gram positive or gram negative). culturing media such as phenylethyl alcohol or sodium chloride agar will be selective/differential for gram-positive bacteria. you may also want to show that it is different from other bacteria that may be present, so you could use a selective/differential agar. selective/differential media such as blood agar or phenol red sugar broths allow for the determination of whether a bacterial cell can grow and utilize specific ingredients included in the medium and turn the agar a distinct color. sheep's blood agar utilizes red blood cells to differentiate which bacterial species may have hemolytic properties. selective or differential? 1. an agar that uses a high salt concentration to limit the growth of one type of bacteria over another would be considered selective/differential. 2. if an agar contains a dye or ph indicator in the presence of a sugar, it is generally considered selective/differential for those bacteria that may ferment the sugar over those that cannot. 3. an agar that uses the dye in crystal violet agar suppresses the growth of gram-positive bacteria. this agar would be considered selective/differential. 4. the selective/differential aspect of macconkey agar allows for the determination of which bacteria are lactose fermenters and which are not. 5. a blood agar plate contains sheep red blood cells and allows for the determination of hemolytic capabilities for all bacteria that grow on the agar. this would make this type of agar selective/differential. 6. emb agar uses lactose and two dyes that allow it to be selective/differential between the blue-black colonies of e. coli and the pinkish colonies of all other enteric bacteria. 7. bile salts in macconkey agar allow for the agar to be selective/differential for the growth of enteric gram-negative bacteria over gram-positive bacteria. 8. an agar that allows for the distinction of bacteria based on metabolism would be considered selective/differential.