Assume that a student is given two different models of bacteria, with one model consisting of big bacteria and the other consisting of small bacteria. How can the student demonstrate the theory of endosymbiosis using the models? A. show the big bacteria ingesting the small one B. fuse the two bacterial cells to form a larger cell C. split both bacterial cells in half D. draw circles showing the cells making endospores

10. Which pathogen is commonly linked with eggs? A. Hepatitis A B. Clostridium botulinum C. Vibrio parahaemolyticus D. Nontyphoida Salmonella

Different forms of a gene controlling a particular trait are called - alleles hybrids punnetts zygotes

How can scientists use comparative anatomy? A. to understand the size between organisms B. to understand the climate in which organisms live C. to understand evolutionary relationships between organisms D. to understand the food chain order of organisms

7. Explain what the results show about the flow of energy in an ecosystem.

Where do you put the parents' genotypes when you're doing a Punnett Square? Inside the box Outside the box on the top and left

Which of the following structures detects changes in the environment and sends this information to the brain? Neurons Glial cells Hormones Sensory receptors

What is the primary role of the spinal cord in the nervous system? Storing sensory information Carrying messages between the brain and the body Producing hormones None of these

Which of the following is NOT a time when wildlife is more active? Night Dawn Dusk Day

The major artery in the body is the __ pulmonary artery. aorta. superior vena cava. coronary artery.

Which of the following is a mechanism of regulating enzyme activity? A. Feedback inhibitior by product. B. Addition or removal of phosphate groups from the enzyme. C. Presence of activators. D. Activation of zymogens. E. All of these regulate enzyme activity.