Which of these cell junctions form a barrier to the passage of materials?
a. plasmodesmata <...
Biology, 15.10.2019 18:10 zmirandalove100
Which of these cell junctions form a barrier to the passage of materials?
a. plasmodesmata
b. desmosomes (anchoring junctions)
c. keratin fibers
d. gap (communicating) junctions
e. tight junctions
Answers: 1
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Which statement best describes the relationship between an allele and a gene? question 1 options: an allele is a variation of a gene that can be expressed as a phenotype. an allele is the part of a gene that attaches to messenger rna molecules. an allele is a segment of a dna molecule that controls replication of a gene.
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Which macromolecule catalyzes chemical reactions this be considered enzyme chemical reactions thus he considering enzymes
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Amarine ecologist has constructed the conceptual model shown in the diagram. what predictions can be made from using this model? where the tertiary consumers get their energy how often primary producers are able to reproduce when bacteria and fungi initiate the process of decomposition whether other secondary consumers are present
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