Which of the following is a correct sequence for the pathway of water into a root?
a) guard cell, endodermis, cortex, xylem
b) root hair, cortex, xylem, endodermis
c) epidermis, endodermis, guard cell, xylem
d) epidermis, cortex, endodermis, xylem
e) root hair, xylem, endodermis, phloem
Answer: d) epidermis, cortex, endodermis, xylem
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Which statement correctly describes BRCA?
a. Mutations to BRCA2 appear to be more lethal than mutations to BRCA1. b. It is an oncogene associated with breast cancer. c. It is a tumor suppressor gene associated with breast cancer. d. BRCA mutations are not inherited. e. BRCA is a proto-oncogene involved in breast tissue development.
What is the process by which a producer uses light energy to make sugars from carbon dioxide and water?
a. respiration b. photosynthesis c. homeostasis d. development e. reproduction
Which of the following lineages contains all of the other lineages in the list?
a. Tetrapoda b. Amniota c. Gnathostomata d. Vertebrata
Which is an exchange pool for the carbon cycle?
A. fossil fuels B. soil C. the ocean D. carbon dioxide in the atmosphere E. limestone