How could you determine whether in unknown substance is a mineral?

Which of the following leaf tissues absorbs sunlight? a. epidermis b. spongy mesophyll c. palisade mesophyll

Which is the BEST description of a macromolecule? an individual compound a molecule made of many small molecules an individual amino acid a molecule made only of carbon molecules

Why does scientific theories change?

Ryan accidentally drops a very heavy object on his foot. In a matter of just a few seconds, he feels a tremendous amount of pain. He experienced the pain quickly because neurons rapidly carried the impulse to the brain.

The most recent species from which two different species have evolved is a parent. a. True b. False

Which of the following is not conducive to new approaches to wildlife conservation and management? A) historical range of abundance B) estimation of the probability of extinction based on historical numbers C) use of age-structure information D)

If the enviroment changes what must a species do to survive A. migrate B. adapt C. change environment back D. species can not survive a change

What is the role of iodine in the gram stain process?

1. How far have we been able to drill through Earth's crust?

About if someone injury how you can take care it's about science