Biology, 20.02.2020 17:59 maustin5323
Why do adult urochordates (tunicates) lack notochords, even though larval urochordates have them? Larvae use notochords to .
A) aid in swimming; adults are sessile and thus no longer propel themselves.
B) stiffen their bodies; in adults, the notochord is replaced by a column of bone.
C) induce tissue differentiation; in adults, tissue is already differentiated.
D) organize their nervous systems; adults' nervous systems are fully developed and do not change.
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Most animal cell membranes have proteins that pump. ions out of the cell and potassium ions into this
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In a lab, scientists grew several generations of offspring of a plant using the method shown. what conclusion can you make about the offspring? a. they formed from meiosis and mitosis. b. they have half the number of chromosomes as their parent. c. they have low genetic variability among them. d. they will be able to reproduce only after they grow flowers.
Answers: 2
Why do adult urochordates (tunicates) lack notochords, even though larval urochordates have them? La...
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