The biological species concept is based on the idea that individuals in one group are be unable to breed with individuals outside their group. This phenomenon is referred to as ________
Fill in the blank(s) with correct word
reproductive isolation
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A feature of bony fish not found in sharks is _____.
Fill in the blank(s) with the appropriate word(s).
The difference between taproot and fibrous root systems is that a taproot system:a
consists of many roots of the same size, while a fibrous root system has one main root with lateral roots. b. consists of one main root with lateral roots, while a fibrous root system has many roots of the same size. c. is characteristic of most monocots, while a fibrous root system is usually found in eudicots. d. can be modified for storage, while a fibrous root system cannot. e. is considered adventitious, while a fibrous root system is not.
What should biologists do when two similar organisms that were originally thought to be separate species are found to interbreed freely and produce normal offspring whenever they live in the same habitat?
A) Retain the two species' names if the organisms have very different appearances. B) Separate the two groups until they become dissimilar enough to prevent interbreeding. C) Consider both types to be a single species. D) Develop a new name for the hybrids.
You buy a new house and the front yard has some really nice rose bushes, but they are surrounded by lots of weeds! You don't really want to try and dig them out by hand and your nice new neighbor comes over with a bottle of weed killer. He says it shouldn't kill your roses, but you, knowing that weeds and rose are pretty similar physiologically decide to do some research. You find out the active ingredient in the weed killer causes the stomata close when in contact with the chemical.
What would be the results of the chemical being sprayed on your roses? Explain which parts of photosynthesis would be affected, what those effects would be, and how would the plant be affected? Would it be likely to hurt your roses?