A gardener is concerned that her greenhouse is getting too hot from too much light and seeks to shade her plants with colored translucent plastic sheets, the color of which allows passage of only that wavelength
What color should she use to reduce overall light energy but still maximize plant growth? A) green
B) blue
C) orange
D) Any color will work equally well.
B
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Diphtheria toxin inactivates elongation factor 2 by catalyzing the attachment of adenosine diphosphate ribose from NAD+
Indicate whether the statement is true or false.
Mutations are permanent changes in a cell's DNA base sequence. They typically have negative consequences, but they are also the original source of genetic variation and the raw material of evolution. How can mutations accumulate, given that cells have repair systems that fix changes or breaks in DNA strands?
What will be an ideal response?
Why is coevolution between plants and animals probably more important in angiosperms than
gymnosperms?
What will be an ideal response?The concept of a membrane as a fluid mosaic reflects the ability of ________
A) phospholipids and most proteins to drift about in the plane of the membrane B) phospholipids but not proteins to drift about in the plane of the membrane C) most proteins but not phospholipids to drift about in the plane of the membrane D) carbohydrates to drift into and out of the membrane structure