What gives the gem amethyst is purplish color?

a. Quartz

b. Iron

c. Oxygen

d. Titanium

How do reflexes protect from injury

Describe all types of manner?

The DNA of a snake changes to make its venom stronger

Describe how enzymes regulate chemical reactions.

Contracts Slowly Striated Voluntary Student 1 Smooth Cardiac, Skeletal Skeletal Student 2 Cardiac, Smooth Skeletal Skeletal, Smooth Student 3 Skeletal Skeletal Cardiac Student 4 Smooth Cardiac, Skeletal Skeletal, Smooth The three types of muscle

Which statement is correct? A. Both plants and fungi undergo photosynthesis. B. Both protists and fungi are eukaryotic. C. Like some prokaryotes, fungi are autotrophic. D. Both animals and fungi lack cell walls.

In an ecosystem, bees are responsible for the pollination of flowers. Over time, the number of bees in the population have increased. Which of these best explains why the number of flowers in the population have also increased?

What is a likely consequence of continued human population growth?

Why is an organisms role important for its community?

Briefly describe what is meant by the semiconservative nature ofDNA replication?