When the solute concentration of solution A is lower than the solute concentration of solution B, solution A is considered

A. hypertonic.
B. hypotonic.
C. isotonic.


B

Biology & Microbiology

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Arrival of an action potential at an axon terminal ultimately results in the release of ________ into the synaptic cleft

Fill in the blank(s) with correct word

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Which one or more of the following is true about root endodermis? 

A. The endodermis contains impermeable lignin and suberin called a Casparian strip that controls water and nutrient movement between adjacent cell walls. B. The endodermis is two to three layers of spherical cells. C. The endodermis forms a boundary between the cortex and inner vascular cylinder of the root. D. All of the choices are true of root endodermis. E. The endodermis forms a boundary between the cortex and inner vascular cylinder of the root and contains impermeable lignin and suberin.

Biology & Microbiology

Life exists on Earth because of the constant flow of light energy from the sun that is transformed into chemical energy.

Answer the following statement true (T) or false (F)

Biology & Microbiology

All of the following are causative agents of conjunctivitis EXCEPT

A) Chlamydia trachomatis. B) herpes simplex. C) adenovirus. D) Neisseria gonorrhoeae. E) Haemophilus influenzae.

Biology & Microbiology