How does the bicoid protein provide positional information along the anterior-posterior axis of the fly embryo? a. it is present at high concentration at the anterior end and low concentration at the posterior end. b. different forms of bicoid protein exist at different locations along the anterior-posterior axis. c. it is present at high concentration at the posterior end and high concentration at the anterior end. d. bicoid protein is present at a uniform concentration along the anterior-posterior axis.

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.

Johnny rode his bike to a friend's house 4 blocks down the street in his neighborhood. he immediately rode back home once he realized his friend was not able to play. what was his displacement for the total bike ride? how did you determine this? what could we use as a reference point to determine he was in motion during his bike ride? why can you use it as a reference point

Which of the following is the most likely outcome of global warming