What are the two broad categories of plants?
1.trachaeophytes and angiosperms
2. trachaeophytes and bryophytes
3. trachaeophytes and gymnosperms
4 trachaeophytes and seedless vascular plants
5 trachaeophytes and ferns

Which is an important function of normal flora? a. aid with bone marrow production. b. crowd out pathogenic bacteria. c. destroy digestive track pathogens. d. manufacture iron in the bloodstream.

Which of the following statements is most likely correct about a rock belonging to the jurassic age and a rock belonging to the cambrian age? options: 1) they have identical fossils of organisms that have evolved over time. 2) both have animal fossils preserved in them due to weathering and erosion. 3) they contain different fossils because life on earth has changed through time. 4) the fossils in them were formed on the surface of earth due to exposure to sunlight.

Where does the information about where each transcription factor binds originate?