When is a mineral considered to be an ore

Why would you expect the crystals in an intrusive rock to be larger than the crystals in an extrusive rock? A. The crystals in intrusive and extrusive rocks are generally the same size. B.

What happens to soil nutrients inside of a pine

The relationship between climate and latitude

After an rna molecule is transcribed from a eukaryotic gene. True or False

6. In the DNA double helix, how are the two strands of DNA held together? A. Chemical bonds between base pairs hold the two strands of DNA together. B. Hydrogen bonds between the base pairs hold the two strands of DNA together. C.

A hormone that increases heart rate, blood pressure, and blood sugar levels in times of emergency is

What is the meaning of the word "thermal" in this sentence? all boys coming on the school camping trip need to bring a pair of long thermal underwear because it is going to be very cold this weekend.

If an animal had 44 chromosomes in its sex cells, how many chromosomes total will they have?

Which system regulates and controls growth, development, metabolism, and reproduction? 1. endocrine system 2. lymphatic system 3. integumentary system 4. skeletal system

In photosynthesis what do the chloroplasts convert the energy of sunlight into?