Answer:
The earliest time that life forms first appeared on Earth is at least 3.77 billion years ago, possibly as early as 4.28 billion years, or even 4.5 billion years; not long after the oceans formed 4.41 billion years ago, and after the formation of the Earth 4.54 billion years ago.
Explanation:
Tapeworms belong to the Cestoidea class and the Platyhelminthes or flatworm phylum. Tapeworms are segmented and flat worms that are present in the intestines of a few animals. The Cestoidea class is a group of parasitic worms that belongs the flatworm phylum. All of the organisms included in this class are parasitic and live in digestive tracts. Humans do acquire these worms especially tapeworms when we eat meat like pork, fish and beef that is not cooked well. The largest species of tapeworm can be found in beef called the T. saginata. It could grow up to 20 meters or 65 feet.
Answer:
A derived unit is a unit that results from a mathematical combination of SI base units. Calculations involving derived units follow the same principles as other unit conversion calculations.
Explanation:
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Options found elsewhere:
-always genetically identical to one parent
-always genetically identical to both parents
-never genetically identical to one parent
-sometimes genetically different than both parents
Answer:
-sometimes genetically different than both parents
Explanation:
Protists are eukaryotes that cannot be classed as animals, plants, or fungi. They are quite diverse. Examples include amoeba, plasmodium, and slime mould.
Because they are so diverse, protists also have very different modes of reproduction. Some protists undergo asexual reproduction, where they simply make a copy of themselves without a mate. Others undergo sexual reproduction.
Therefore, the only option that can be correct is "-sometimes genetically different than both parents" .
If they were always genetically identical to one parent or both parents, that would mean that sexual reproduction could not be possible. If they were never genetically identical to one parent, that would mean that asexual reproduction could not be taking place.