Answer:
At the close of the nineteenth century, Thomas Edison was working on perfecting his system of direct current (DC) for electric power distribution. Meanwhile, the inventor and physicist Nikola Tesla was discovering the benefits of his competing alternating current (AC) system.
Explanation:
Answer:
1.During most of the cell cycle, interphase, the chromosomes are somewhat less condensed and are not visible as individual objects under the light microscope.
2.Many of the cells of the root meristem are not undergoing mitosis, rather they are in a stage called interphase.
3. Interphase is longer than mitosis.
4.G1,S,G2 Cell grows, DNA doubles, and chromatin condenses
5.Once cell division ends, the cells will exit the cell cycle and enter the interphase stage.
Answer:
D. the Y chromosome
Explanation:
Men have an X and a Y chromosome while women have two X chromosomes. Since the unusual chromosome was spread to nearly 16 million men, it was most likely a Y-linked trait as only men inherit a Y chromosome. If it was an X-linked trait, both men and women would be able to get it since both inherit X chromosomes.
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Answer:
The correct answer is ''deuterostome''.
Explanation:
Deuterostomes are a superphylum of animals in which the anus is formed in or near the blastopore area in the developing embryo, and the mouth is secondarily formed elsewhere. The oral apparatus that these adult animals enjoy does not come from the embryo's blastopore. Instead it is a new formation. They enter the Bilateria classification, where species that enjoy bilateral symmetry are incorporated. In deuterostomes, the primary phases of division occur in parallel to the axis between the tips. That is, the segmentation they have is radial when the embryo is in state 1 with four cells.