True or false: the carrying capacity of a given geographic region for a single population can change over time. true or false: the carrying capacity of a given geographic region for a single population can change over time.

a. True

b. False

The smallest unit until that retains the properties of an element is a (n)

Why is oxygen not essential to all living things? Oxygen is used for breathing by only animals Oxygen is a waste product of photosynthesis so is not needed by plants Oxygen is harmful to plants and bacteria Oxygen is harmful to fungi and algae

The substance naturally follow their concentration gradient however there must go through the protein channels because they are too large to squeeze through the cell membrane

Explain the significance of snyder agar medium and its differential nature as a means to detect dental caries

In meiosis I what happens during anaphase?

What do the fossil skeletons tell us about the evolution of today's whales?

1. How might a finch population evolve if these tough seeds were the main food source compared to tiny insects? Why?

A population of red squirrelfish breeds and produce offspring, 75% are still red but 25% are yellow. this variation in the color of the squirrelfish can be explained bya) the presence of a mutagen in the environment that caused a color change. b.

During the process of meiosis, how many haploid cells are formed from the original diploid cell?

A researcher identified a bacterial enzyme that is essential in the breakdown of glucose. The researcher wants to test a potential antibiotic that acts on the newly identified enzyme.