Conifers produce
A. only seeds in cones.
B. only flowers.
C. both seeds and pollen in cones.
D. pollen in flowers and seeds in cones.
E. only pollen in cones.
C. both seeds and pollen in cones.
You might also like to view...
A characteristic of all cancers is that ____
a. the cells divide continuously b. they have a benign form and a deadly form c. several mutations in several different genes are required in order for cancer to develop d. they are always due to a chromosome disjunction mutation e. the rapid proliferation of cells is required
Non-toxin-producing strains of Corynebacterium diphtheriae could infect the body but would not cause the typical symptoms of diphtheria.
Answer the following statement true (T) or false (F)
Which of the following is an ultimate question in regards to animal behavior?
A. Why do parents risk their lives for those of their offspring? B. How do crows know to work together to attack a great horned owl? C. How does a male songbird learn the songs that attract females of his species? D. How does the nervous system translate instinct into action? E. When does a human male develop a deep voice?
CAP is said to be responsible for positive regulation of the lac operon because _____
A) CAP binds cAMP B) CAP binds to the CAP-binding site C) CAP prevents binding of the repressor to the operator D) CAP bound to the CAP-binding site increases the frequency of transcription initiation