Stomatal pores function to allow which of the following?
A. loss of water vapor from leaves
B. entry of CO2 into leaves
C. prevention of water loss from leaves
D. escape of O2 from leaves
E. All of the choices are correct
E. All of the choices are correct
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Algae in the genus Caulerpa typically grow to a length of over half a meter and have structures similar to stems, leaves, and roots. Reproduction occurs when adults produce sperm and eggs that fuse to form offspring. Algae in the genus Caulerpa typically grow to a length of over half a meter and have structures similar to stems, leaves, and roots. Reproduction occurs when adults produce sperm and
eggs that fuse to form offspring. Each adult Caulerpa consists of just a single cell, however. Which of the following statements is true? A) Caulerpa violate the pattern component of the cell theory that all organisms consist of cells. B) Caulerpa violate the process component of the cell theory that all cells come from preexisting cells. C) Caulerpa violate both the pattern and process components of the cell theory. D) The existence of Caulerpa is consistent with the cell theory.
Where do transcription and translation take place within the cell? What post-transcriptional modification aids in the movement of mRNA to the site of translation?
What will be an ideal response?
Which of the following pathways is affected in ced mutants of C. elegans?
A) mitogen signaling B) apoptosis C) cell cycle D) terminal differentiation E) stem cell division
where does replication take place?
What will be an ideal response?