The saguaro is a giant cactus that is found in desert regions of Arizona. This is information about the cacti's ________
A) habitat
B) niche
C) biosphere
D) succession
A
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Which of the following characteristics of transcription is the same for DNA replication?
A. The process has distinct initiation, elongation, and termination phases. B. Just one of the two strands of a DNA segment serves as a template. C. Only certain genes serve as templates at any given time. D. Nascent strands dissociate from the template. E. All of the choices given are the same for both transcription and DNA replication.
Pollen germination refers to the process of:
A. pollen attachment to the stigma B. pollen dispersal C. sperm development D. double fertilization E. development of the pollen tube
What is the effect of acetylcholinesterase inhibitors on synaptic function?
a. decreases neurotransmission in synapses that require acetylcholine b. increases the release of glutamate in synapses where acetylcholine is absent c. increases neurotransmission in synapses that require acetylcholine d. blocks the release of glutamate in synapses where acetylcholine is present
When a diploid cell divides by mitosis, the result is __________
A) identical haploid cells B) identical diploid cells C) unique diploid cells D) unique haploid cells E) a zygote.