Four of the five features listed below are
characteristic of the majority of animals. Select the
exception.
a. multicellular
b. make their ATP by fermentation
c. usually motile at least during part of their life
cycle
d. usually diploid with sexual reproduction
e. heterotrophic
Answer: b
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Dwarf plants are often short because they produce less gibberellin than taller varieties of the same species. What other scenarios might lead to dwarf plants? Choose all that apply.
_____ DELLA proteins that can't bind transcription factors as well. _____ GID proteins that can't bind gibberellin as well. _____ DELLA proteins that bind transcription factors more strongly than normal. _____ GID proteins that can't bind DELLA proteins as well.
The most widely accepted and supported model that explains the movement of phloem sap in flowering plants is the
____ mechanism.
a. cohesion-tension b. translocation c. pressure flow
d. osmosis e. transpiration
In the first half of the menstrual cycle, estrogen primarily is secreted by the ______.
A. oocyte B. corpus luteum C. follicular cells D. uterus
In prokaryotic cells, the electron transport system occurs in the mitochondria.
Answer the following statement true (T) or false (F)