The statement which is not true about the reefs is that they contain dinosaur fossils
<h3>What are reefs?</h3>
Reefs simply refers to chain of rocks or coral near the surface of water
Some few examples of reefs are as follows:
- Rainbow reef
- Red sea coral reef
So therefore, the statement which is not true about the reefs is that they contain dinosaur fossils
Complete question:
Transgression of the Kaskaskia sea promoted reef formation in what is today Western Canada; which of the following statements is NOT true about these reefs.
A. They contain calcium carbonate
B. They contain dinosaur fossils.
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In bird, females are heterogametic, produce two type of gametes. The two different sex chromosomes of a female bird has been designated to be the Z and W chromosomes. Whereas males have a pair of Z- sex chromosomes. Males are homogametic produce only one type of gametes with Z-sex chromosomes. Thus sex determination is ZW-ZZ type. In humans sex determination is XX-XY type. Males are heterogametic produce X and Y gametes and females are homogametic produce one type of gametes. Therefore, in bird sex are determined by female gametes.
The forester made an observation that the forest had mostly mature hemlock and very few young hemlock. This is common for outdoors scientists to make observations on the part of the natural world that is their field of study, and then draw conclusions from these observations. For example, the observation that the western edge of North and South America has a string of volcanoes or the ring of fire, plus the concordance between the east coast of South America and the western coast of Africa let first to the theory of continental drift and finally to plate tectonics. Similarly, the paucity of young hemlock and the existence of mature hemlock could also spark a conclusion, such as maybe the mature hemlock were diseased so couldn't create new offspring or perhaps a fire had wiped out the young ones, as two possible explanations which would depend on the actual circumstances observed by the forester.
Answer: Cell specialization or cell differentiation is a process of converting generic cells in the body into specialized cells. The specialized cells can perform a certain function within the body. The cell specialization occurs in two stages of a multicellular organism.
i hope this helps yu can probaly find more on https://pediaa.com/how-do-cells-become-specialized/ :)