What is the biggest threat to old growth forests found in the United States?

Approximately 15-20% of all galaxies are classified as which type? A) spiral B) irregular C) elliptical D) barred spiral

Fungi are usually spread most effectively by what

Which cyclic process is responsible for the sexual reproduction of a diploid sporophyte?

In open areas and around vessel swim platforms, certain activities should be avoided. what activity should be avoided in order to keep away from carbon monoxide

What are the four unifying principles that form the foundation of modern biology?

With which atoms does carbon most frequently bond

What is a karyotype?

A scientist has been working for 15 years to develop a new type of plastic material, but she has not yet been successful. Which of the following best explains why her work is still a success?

Technology can have good and bad effects. What is a bad effect of spraying pesticides on crops

Can your body make antibodies for pathogens that you have never been in contact with