The answer would be C. Chloroplasts. Chloroplasts are only found in plant cells because they create their own food. Chloroplasts are used during the process of photosynthesis which is not done by human fingernails.
Hope this helps!
~Starr
Answer:
Hm.
Explanation:
Igneous rocks form from molten rock, and rarely have fossils in them. ... Metamorphic rocks have been put under great pressure, heated, squashed, or stretched, and fossils do not usually survive these extreme conditions. Generally, it is only sedimentary rocks that contain fossils.
So the answer is C.
<h3><u>Answer;</u></h3>
A. The Triassic period of the Mesozoic Era
<h3><u>Explanation;</u></h3>
- <u>Pangaea was a super continent that existed about 300 million years ago, instead of the current seven continents.</u>
- <em><u>During the Triassic period, the first period of the Mesozoic Era the Earth's landmasses had coalesced to form the super continent Pangaea. By the end of this period the super continent began to divide into two; Laurasia in the north and Gondwana in the south, under the influence of plate tectonics. </u></em>
- <em><u>During the Jurassic Period which was the second segment of the Mesozoic Era that followed the Triassic period, the super-continent Pangaea further split apart.</u></em>
Answer: Xylem fibers and xylem parenchyma are the elements of the xylem which is a vascular tissue in plants.
Explanation:
Xylem fibers are dead cells whereas the xylem parenchyma are living cells.
Xylem fibers are responsible for providing structural support to the entire structure of xylem whereas the xylem parenchyma is involved in conducting of water and minerals.
In xylem fibers the lignin is present whereas it is absent in xylem parenchyma.
Approximately 4.5 billion years ago
