Dna isolated from water samples collected in six different sites was prepared and analyzed by gel electrophoresis for the presence of carp. the resulting gel is shown. lanes 1 through 6 contain the dna from each site. lanes 7 and 8 represent the negative and positive controls.

based on the banding patterns, how many sites tested positive for carp?

Imagine a rocket launching from earth and travelling to the moon. in which order would the rocket pass through the layers of the atmosphere? thermosphere, mesosphere, stratosphere, troposphere troposphere, mesosphere, stratosphere, troposphere thermosphere, stratosphere, mesosphere, troposphere troposphere, stratosphere, mesosphere, thermosphere

Ry was studying two populations of the same species of lizards. one population lived on an island and the other lived on the mainland. both populations were affected by a hurricane that hit the island and the mainland with equal force. a year later, henry was testing the gene frequency and saw a decrease in genetic variation in the island species, but not in the mainland species. which best describes a conclusion he might have reached? gene flow greatly affects small populations, but large populations can recover. genetic drift greatly affects small populations, but large populations can recover. gene flow greatly affects large populations, but small populations can recover. genetic drift greatly affects large populations, but small populations can recover.

Which is an example of a decomposer? a. bear b. algae c. grass d. bacteria d bacteria