When a pyrite crystal is hit with a hammer it breaks into pieces with smoothly curved edges what mineral characteristics does this relate to

A. streak

B. luster

C. fracture

D. hardness

What can biologist do to prevent extinction

How is the cell membrane similar to the cell wall? How are they different?

Phoenix hears voices in his head that tell him to punch holes in the walls of his room. Because Phoenix is perceiving the voices without an external auditory stimulus, he is experiencing:

This type of molecule is the molecule used by plants for long term energy storage polysaccharides, lipids, proteuns

Some newborn black babies have light skin pigmentation but it gets dark with time. Can somebody tell me why this is so?

Homeotic genes a. encode transcription factors that control the expression of genes responsible for specific anatomical structures. b. are found only in Drosophila and other arthropods. c. are the only genes that contain the homeobox domain. d.

Elektromotor pada motor listrik dirancang untuk dapat bergerak?

What are two disadvantages of cephalization?

What would happen if all the energy in glucose were released in just one step instead of gradually as it is in cellular respiration? How is the gradual process of cellular respiration advantageous to the cell?

Describe how the structure of DNA determines the structure of proteins.