Answer:
Mutations and sexual reproduction increase genetic variation in a population. Natural selection occurs when environmental pressures favor certain traits that are passed on to offspring. ... Individuals may mutate, but natural selection acts by shifting the characteristics of the population as a whole.
Explanation:
Both Grosz and Dos Passos were looking to animals for their understanding of humans.
Elizabeth Grosz is famous for her theory "Art and the animal" where she explains that <span> we humans take our cue from the animal world.
The American novelist Dos Passos, also believes </span>that the natural world and human civilization are essentially disparate. Their portrayals are generally positive.
Answer:
Each parent carries a gene for green (y) and a gene for yellow (Y). Place one parent's genes along the top of the Punnett square and the other parent's genes along the left side. Copy the genes down the columns and across the rows. Each of the four squares now shows a possible genotype combination
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Explanation:
Induced depression of single neurons in brain areas with opiate receptors
- Enkephalin, applied microiontophoretically, depressed spontaneous and glutamate-induced firing of one neuron in frontal cortex, caudate nucleus, and periaqueductal gray matter, where enkephalin and high concentrations of opiate receptors are met.
- More than one depressions were blocked by the specific narcotic antagonist naloxone. The results are durable with a neurotransmitter or neuromodulator role for this new brain pentapeptide.
- Opium derivatives have been in medical use for the last 2000 years, and may be longer than any other class of drugs
- . The brain regions which was involved in these actions have been identified in some instances by local microinjection of pmole quantities of opioids.
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Grow, reproduce, take in nutrients from the environment, respond to the environment, transport materials thru-out their body, produce chemicals
