You observe a cell under a microscope and you can clearly see a cell wall, a vacuole, and cytoplasmic connections. These cytoplasmic connections must be
A) plasmodesmata.
B) desmosomes.
C) gap junctions.
D) osmotic channels.
E) tight junctions.
A
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Male crickets create sounds that we call "chirps" by rubbing one wing against the other. If another male presents himself to the singing male, the two males will fight
First they interlock antenna, then they spread their jaws, and finally they wrestle. _____________ is/are examples of communication _______________. A. All of the actions; because all involve information being sent and received by the two crickets B. Interlocking antenna and spreading jaws; but not wrestling because communication is no longer needed when the two crickets are physically in contact C. Just the initial song and the response of the second male cricket arriving in the area; between the two crickets D. Just the initial song; because it is an intraspecific signal
People embracing the idea of the great Chain of
Being did NOT believe in which of the following? a. Spiritual beings were a part of the Chain. b. All life forms were created at one time. c. Organisms could appear, disappear, or move up and down the Chain. d. Each species was “fixed” at creation. e. Once every link was discovered, the meaning of life would be known.
Construct a table with the five kingdoms listed. Include several diagnostic features of each kingdom and an important
ecological role of organisms found in each kingdom. What will be an ideal response?
A selection experiment you are doing requires certain conditions in order for evolutionary change to occur. What conditions would cause this change? (Select all that apply.)A) variation between individuals in a populationB) genetic variations being heritableC) no variation existing between individuals in the next generationD) survival rate of offspring varying due to parental genetic differences
What will be an ideal response?