A student creates a physical model of the inside of the small intestine. the model is made up of long balloons packed closely together inside a shallow box. what does the model show about how the small intestine serves the needs of the organism?

Why do many plants have specialized cells that produce colorful flowers? A. To collect more sunlight B. To scare away predators C. To attract prey D. To attract insects

A dehydrated seagull has a choice between a sea turtle, a shark, and an octopus that have washed up on the beach to make a meal from. Which one, considering solute intake and osmolarity, would be the best choice for the seagull to eat?

Which best describes genetic engineering? a. Fragments of DNA that have desired genes are isolated to form recombinant DNA for use in a host. b. All the DNA from a desired organism is isolated to form recombinant DNA for use in a host. c.

Which of the following statements regarding mitosis and meiosis is false? A. In mitosis, the chromosomes replicate only once in the preceding interphase. B. Mitosis provides for growth and tissue repair. C. Meiosis provides for asexual reproduction.

What is the black circle inside your eye called?

A population is best represented by

Carolyn suffers from the excessive secretion of insulin in the bloodstream. the medical term for this condition is

Some biological hazards (such as bacteria, viruses, parasites, and fungi) are undetectable by sight, smell or taste and can potentially cause an illness. What are these biological hazards called?

What is a negative effect of using land as a resource

This plant structure gives plants their green color