If you, like Mendel, grow plants in the lab, and cross short (tt) pea plants with short pea plants, the offspring will be Select one:
a. None of the answer choices are correct.
b. a mix of tall and short.
c. all tall.
d. all short.
e. nonexistent.
d. all short.
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A video gaining popularity on social media purports to show a self-contained, self-sustaining biosphere, conveniently available for purchase. The device shown in the video consists of an airtight, mirrored bottle, containing some water, a houseplant you don’t recognize, a waterproof light bulb, and an electrical generator powered by a weight and pulley assembly. The video explains, via a colorful animation, that the plant, when exposed to light, lifts the weight; when the light shuts off, the plant releases the weight, which powers the light bulb, reviving the plant, starting the cycle over again. The narrator claims that this process is so efficient; the bottle actually feels warm to the touch despite receiving no additional energy. You know this is clearly impossible, but what facts
support your assertion? a. The only part of this system that would not work as described is the gravity generator; plants cannot exert enough force to lift a weight into the air as described. b. The problem with this device lies with the light bulb; even if the apparatus functions as described, plants cannot photosynthesize artificially-produced light. c. All metabolic processes lose energy to entropy as waste heat; the fact that the bottle is warm to the touch indicates it is losing energy that is not being replaced. d. Corrosion is an exergonic reaction that occurs spontaneously; in an airtight bottle with a source of water, any metal parts will rust immediately, halting the device.
Schizophrenia has been shown to be a single gene disorder. Indicate whether the statement is true or false
In comparison to desert habitats, urban landscapes on average have a
A) higher number of bird species. B) lower number of bird species. C) similar number of bird species. D) the same type of bird species.
Why are lipids and proteins free to move laterally in membranes?
A) The interior of the membrane is filled with liquid water. B) Lipids and proteins repulse each other in the membrane. C) Hydrophilic portions of the lipids are in the interior of the membrane. D) There are only weak hydrophobic interactions in the interior of the membrane.