In any evolving population of organisms, individual variations exist
Indicate whether the statement is true or false
TRUE
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The unexpressed regions of split genes are called
A. exons. B. introns. C. endons. D. codons.
The process involving microspore division and a tough wall to protect the gametophyte leads to the production of what end product?
A. eggs B. ovules C. pollen D. anthers E. stamens
Regarding Investigating Life 22.5, why might these trees only secrete nectar on young leaves rather than larger, more mature leaves?
A. These leaves are near the lateral meristem, where secondary growth will help strengthen branches against the ants in domatia. B. These leaves have internodes and more leaflets to distribute any adverse effects from the ants living in domatia. C. These leaves perform more photosynthesis, being newer, and therefore make the most nectar. D. These leaves have more cellulose, because being newer, this form of carbohydrate is a better sugar for the nectar. E. These leaves are near the apical meristem, attracting ants to the entire length of the branches.
Flagella are stained with
a) carbolfuchsin. b) malachite green. c) methylene blue. d) crystal violet.