Dormant, thick-walled resting cells of cyanobacteria that are resistant to desiccation are called ________.
A. akinetes
B. baeocytes
C. thylakoids
D. hormogonia
Answer: A
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Prochlorophytes lack which of the following?
A. Phycobilins B. Chlorophyll b C. Chlorophyll a D. None of the choices are correct.
Callose has what effect on pollen?
A. aids differentiation and attachment of pollen to the carpel B. aids pollen development and helps pollen tubes to grow C. aids pollen coat development D. aids pollen coloration E. aids the separation of pollen grains from the anther
Which of the following is a characteristic of temperate forests?
a. being dominated by deciduous trees b. having significant tree species diversity c. having shrubs that adapt to occasional fires d. being shaded mostly by evergreen conifers
Which of the following cell structures are associated with the breakdown of harmful substances?
A) chloroplasts B) mitochondria C) peroxisomes D) centrioles