According to Charles Darwin what is one reason that not all organisms survive in nature?
<span>B. There are more organisms born than resources can support.</span>
The style is the long tube that attaches the stigma to the ovary. Sperm from the pollen will travel down this tube to the ovules. The ovules, or eggs, are stored in the ovary until they are fertilized. Plants can only fertilize eggs of the same species.
Answer:
e.DDT
Explanation:
DDT is biologically magnified and concentrated as it moves through the food web. This increase in concentration is due to Metabolism of DDT which excretes more slowly than the nutrients which moves from one trophic level to next. so DDT accumulates in the body especially in the Fats.
Answer is: <span>c. they both connect the two hemispheres.
</span>Corpus callosum<span> is a wide </span>commissure<span> beneath the </span>cerebral cortex<span> in the </span>brains<span> of </span>placental mammals. Corpus callosum <span>connects the left and right </span>cerebral hemispheres <span>and enables communication between the hemispheres.
</span>Interior commissure<span> </span>is a bundle of nerve fibers<span>, connecting the two temporal lobes of the cerebral hemispheres across the midline.</span>
Answer:
Meiosis occurs in a series of different phases and creates genetically unique reproductive cells. The process which helps make meiotic cells genetically different and occurs during prophase I, but not during prophase II, is crossing over (C). Crossing over is the exchange of genetic material between two homogenous chromosomes. It is one of the final phases of prophase I. This process is called synapsis. It occurs when the matching regions on the matching chromosomes break and then reconnect to the other chromosome
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