Aphotic zone (bathypelagic zone) The region of a lake or sea where no light penetrates; it is situated beneath the euphotic zone. The aphotic zone contains no algae or phytoplankton, and its inhabitants are exclusively carnivorous animals or organisms that feed on sediment or detritus, all reliant on energy inputs from the euphotic zone. It extends downwards from a depth of about 1000 m, or less in turbid waters, and includes the abyssal zone.

4 0

3 years ago

The illustration below shows the steps of meiosis I.

Arlecino [84]

Answer:

According to the illustration of meiosis I, when sister chromatids stay together the phase to which it corresponds is telophase I (fourth option).

Explanation:

Meisois is a process of cell division whose final result is the obtention of two daughter cells with half of their genetic charge, with respect to the original cell. This process is divided into two parts, called meiosis I and II.

Telophase I corresponds to the phase of cell division in meiosis I, where the events that occur are the appearance of the nuclear membrane on the newly divided genetic material, cytokinesis -or cytoplasmic division- and above all due to the fact that each daughter cell already contains half of the genetic load, since the sister chromatids stay together.

Learn more:

Meiosis brainly.com/question/9650142

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3 years ago

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In 1884, Hans Christian Gram described a method of staining bacterial cells while not staining surrounding animal tissues. Howev

liubo4ka [24]

Answer:

In 1884, Hans Christian Gram described a method of staining bacterial cells while not staining surrounding animal tissues. However, he thought that the staining method he developed was faulty because not all bacteria stained. ... Not all bacteria stained because some have walls that prevents the staining.

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2 years ago