What is the correct sequence of sea urchin egg coverings, beginning at the outside and moving inward?
a. granulosa cells, zona pellucida, plasma membrane
b. zona pellucida, vitelline envelope, plasma membrane
c. jelly coat, vitelline envelope, plasma membrane
d. plasma membrane, jelly coat, zona pellucida
e. vitelline envelope, jelly coat, plasma membrane
c
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Choose the true statements about the genomes of plants (especially Arabidopsis and rice), animals, and fungi.
_____ Plants, animals, and fungi share most of the same genes for intermediary metabolism, genome replication, and protein synthesis. _____ "Plant" genes include those coding for photosynthetic pathways and morphology. _____ Plants generally have smaller genomes than those of animals and fungi. _____ Rice has fewer genes than humans.
Why are both blood and bone considered connective tissue?
What will be an ideal response?
The famous “bell-shaped curve” that usually results
when test scores are plotted against number of students is an example of what type of selection? a. disruptive b. stabilizing c. divergent d. variable e. directional
You are a microbiologist working with a new species of bacteria thriving in soil at 15°C. In the lab, you find this bacterium adjusts well to growth at 37°C
If this bacterium were "typical," what changes would you expect to find in the fatty acid composition of the membrane as the bacteria undergo homeoviscous adaption? What will be an ideal response?