What enzyme is lacking in the Escherichia coli strain used by Okazaki in the experiments leading to his discovery of the DNA fragments that will form the lagging strand?

a) DNA polymerase

b) telomerase

c) DNA ligase

d) pyrophosphatase

Cellular respiration would be a catabolic reaction. True False

Which event shows the pattern of coordinated stasis? a) the removal of geographic barrier united species that were previously reproductively isolated. b) major hurricanes and other weather variations destroyed regions of coastline ecosystems.

The photograph shows an invasive species of Burmese python. These snakes have found a habitat in the Florida Everglades that is similar to their Asian home. How might the Asian species harm native species of snakes? A.

Which of the following molecules is most abundant in the cells of the human body? f Lipids g Water h Amino acids j Nucleotides

Which system delivers nutrients throughout the body? the urinary system the circulatory system the digestive system the endocrine system

Describe how human activities threaten polar bears in the arctic

What did Mendel cross pollination of pea plants prove

Which type of rock is created when lava cools and hardens? A. igneous B. sedimentary C. metamorphic D. cement

Name 2 ways the diffusion of popular customs can adversely affect the environment

Once your ambulance is dispatched to an emergency, you have an obligation to respond. what is this called?