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

Which statement is true about the cell theory? a) it is well-supported by evidence. b) it is unchangeable and permanent.

Answer ! in your opinion, what are the limiting factors that might affect the growth or diversity of our ecosystem? respond to this question in claim, evidence, reasoning format. 1. make your claim (i are the limiting factors that might affect the growth or diversity of our 2. follow the claim with 3 pieces of evidence. evidence may be taken from the reading, the videos, previous lessons, or googled answers. site sources, too. 3. use reasoning to explain why you chose your evidence.

Satellites orbit earth in the a) mesosphere b) troposphere c) stratosphere d) thermosphere