An organism has 4 duplicated chromosomes. How many sister chromatids does it

have?

A. 8

B. 2 C. 0 D. 4

A student mixed equal amounts of water and oil together in a bottle and found that the oil always floated above the water. What can be said about the density of oil versus water? A. their densities are equal B. oil has a greater density than water C.

What are some benefits of meiosis? and mitosis? Why does it make sense that our sex cells use meiosis? How might mutations in dna affect an organism? What do mutations cause? What are everyday things that can cause mutations?

1) Cell surface membrane, small vacuoles, large central vacuole, centrioles, cytoplasm, nucleous, chloroplasts, mitochondria, endoplasmic reticulum, golgi apparatus, ribosomes.

Which of the following substances is not absorbed? A. amino acidB. sugarC. fatty acidD. fiber

How are mitosis and meiosis similar? a. they both have prophase and metaphase. b. they both produce gametes. c. they both produce tetrads. d. they both reduce the chromosome number?

Which energy conversion takes place when a solar cell is used to light a street lamp? A) solar energy → light energy B) solar energy → electric energy → light and heat energy C) solar energy → light and heat energy D) heat energy → light energy E)

Relationship between organisms that share the same habitat and niche.

List 3 characterustics of the class sea turtles belong to

What is the goal of habitat protection and wildlife management programs?

What's a scale used to measure the amount of seismic energy released by an earthquake?