Answer:
Prophase I
Events of Prophase I (save for synapsis and crossing over) are similar to those in Prophase of mitosis: chromatin condenses into chromosomes, the nucleolus dissolves, nuclear membrane is disassembled, and the spindle apparatus forms. Major events in Prophase I.
The Answer is B................
Answer:
Cambrian explosion
Explanation:
Cambrian explosion is a geological event that happened during the Cambrian age (541 million years ago). In this period, most of the animal phyla (including marine) appeared and their geological record is preserved in the form of fossils. The period lasted for 13-25 million years. Before this period, the organisms were very simple. They were mostly unicellular in nature and were living in the form of colonies.
The remaining three options are incorrect. They are tectonic events that reflect movement of continents in different geological times. None of them resulted in the diversification of (marine) animal phyla.
In the genetic disease called ichthyosis, the skin is rough, brown, and scaly because the uppermost layer cannot peel off as easily as it should. what layer of the skin is affected in this disorder is epidermis.
Ichthyosis is a skin condition that turns the skin, thick, scaly and fleshy. Since it is genetic disorder, the genes are inherited from the parents. Of inherited from one parent, the skin condition are milk. But when genes are received from both the parents, the disease occurs in its most severe form, also called ichthyosis vulgaris.
Epidermis is the outermost layer of the skin. It is the body's first line of defense because it prevents any microbes entering the body. Besides, it also protects from mechanical injury, stops the loss of moisture and also reduces the effect of UV radiations.
To know more about ichthyosis, here
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In my class we use the Kelvin but it might Celsius <span />
