The composition of a star can be identified by

A. its apparent magnitude

B. the size of the star.

C. the lines in its spectrum.

D. the intensity of its radiation.

When a polarized white light is sent through a synthetic fiber, how many perpendicular rays are created? A. 1 B. 2 C. 5 D. 10

What is the meaning of cells of multicellular organisms are speclized?

Explain why sex-linked traits show up in males more often than females. Draw a punnett square for the following scenario: Hemophilia is a sex linked recessive trait.

Lashing out at others is a healthy way of coping with stress.

Plant species A cannot fight most fungal infections, while plant species B makes a protein that kills many fungi. What is one possible way for humans to engineer species A plants that can produce the fungus-killing protein?

Why do organisms have to compete for resources

What happens to the particles in a substance during a physical change.

Match the correct properties and characteristics to each type of rock. sedimentary igneous metamorphic A)) cooled magma B)) deposition of material on Earth's surface or in bodies of water C)) arises from transformation of existing rocks D)) made of

During DNA replication, which sequence of nucleotides will bond to the sequence ACG TAT?

A student wants to find the benefit of a certain structural trait in mice. What is the first step the student should follow?