Choose the letter of the best match from the following:A. protodermB. vascular cambiumC. apical meristemD. procambiumE. ground meristemThe three primary meristems are the ________, which forms the epidermis; the procambium, which produces primary vascular tissues (primary xylem and primary phloem); and the ground meristem, which differentiates further into ground tissue.
Fill in the blank(s) with the appropriate word(s).
Answer: A
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In SCUBA diving, breathing gas, a mixture of oxygen and other gases, is carried in a breathing tank on the diver's back. This gas must be pressurized so the diver can breath underwater; it is not sufficient to simply bring unpressurized breathing gas or normal air underwater. Based on the Fick diffusion equation, what can you conclude about the concentration of oxygen available to the diver underwater?
A. The atmospheric and water pressure increases the amount of oxygen that can be extracted from unpressurized breathing gas. B. The atmospheric and water pressure does not affect the amount of oxygen that can be extracted from unpressurized breathing gas. C. The concentration of oxygen is lower in breathing gas than in normal air. D. The atmospheric and water pressure decreases the amount of oxygen that can be extracted from unpressurized breathing gas.
Nerve impulses are electrical signals measured across which structure?
A. lipid sheath of Schwann cell B. plasma membrane of neuron C. synapse D. neuromuscular junction
You find a green organism in a pond near your house and believe it is a plant, not an alga. The mystery organism is most likely a plant and not an alga if it _____
A) contains chloroplasts B) is surrounded by a cuticle C) does not contain vascular tissue D) has cell walls that are comprised largely of cellulose
Bacterial responses to phage infection can be compared to the human immune system. Which of the phrases is true?
A. Restriction-modification can be compared to adaptive immunity and CRISPR/Cas to innate immunity. B. Restriction-modification can be compared to the complement system and CRISPR/Cas to inflammation. C. Restriction-modification can be compared to B cell responses and CRISPR/Cas to T cell responses. D. Restriction-modification can be compared to innate immunity and CRISPR/Cas to adaptive immunity.