The animal gut cavity may be a fully lined coelom or a partially lined __________
Fill in the blank(s) with the appropriate word(s).
ANSWER: pseudocoelom
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You are part of a desert plant research team trying to discover crops that will be productive in arid climates. You discover a plant that, under water-deficit conditions, produces a hormone that triggers a suite of drought responses
Most likely the hormone is _____. A) abscisic acid B) gibberellin, or gibberellic acid C) indoleacetic acid D) 2, 4-D E) salicylic acid
Which of the following acts in the small intestine to breakdown protein?
A) trypsin B) pepsin C) bile D) amylase
Finger-like projections that assist in gathering released eggs into the oviducts after ovulation are called the __________
Fill in the blank(s) with the appropriate word(s)
If a species of insect provides most of the food for a particular species of bird, this is part of the bird's
A. habitat. B. environment. C. niche. D. range.