Answer:
A “mutation” changes the instructions of a gene, which can also change the protein. Sometimes this change makes it so the protein can't do its job as well. And this is what happens with sickle cell anemia. A mutation in the hemoglobin gene changes the hemoglobin protein in a way that causes sickle cell anemia.
Answer:
The first layer (crust) is rock
The second layer (Mantel) Is molten rock
The third layer (outer core) is liquid iron and nickel
The fourth layer (inner core) is solid iron and nickel
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Answer:
Blood - Circulatory System
Eye - Sensory System
Uterus - Reproductive System
The article in the journal is the secondary source.
Explanation:
A research literature review can be constructed by taking information from two types of sources which are grouped as primary sources or secondary sources.
The primary sources include the original research papers, excerpts written by the scientists himself or any other original documents.
Any article published in magazines, newspapers and journals that reflect the original result but do not have the exact words written in the research paper are all secondary sources.
The best answer is)
<span>It enables photosynthesis by facilitating primary growth of the plant.
The apical meristems are similar to stem cells in humans, and continue dividing indefinitely over the life of the plant. The cells are unspecialized, and only become specialized after being created. Apical meristems are the primary meristems, and constitute the primary growth of the plant, growing into organs such as leafs, flowers, and roots. </span>
