Answer:
differentiated; on; off
Explanation:
As the zygote goes through mitosis and creates more cells. Each cell is called a stem cell. In order to become a certain type of cell, these cells will become <u>differentiated </u>Or This means they will turn Genes <u>on </u>for the type of cell they are becoming, and turn Genes <u>off</u> for the type of cell they won't be.
Stem cells become specialized cells through the process of differentiation. The stem cells all have identical DNA in them. They become specialized for a particular function (s) through the process of differentiation. During this process, some <u>specific genes are either turned on or off</u>. <em>Cells in which the same genes are expressed become specialized for similar functions and can then come together to form a tissue.</em>
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Answer:
C. habitat fragmentation and preserve design.
Explanation:
The SLOSS debate involves issues relating to habitat fragmentation and preserve design.
Answer:
C) Na+ ions moving out of the cell
Explanation:
- Movement of Na+ ions out of the cell requires hydrolysis of ATP, a process called active transport.
- Active transport involves movement of materials against a concentration gradient using energy from the hydrolysis of ATP.
- Active transport system uses energy in the form of ATP to move substances such as ions into the cell or out of the cell.
Answer:
open clusters are A.no more than a few thousand stars, B.disorganized, F loose
globular clusters are C.tightly packed, D.more than a million stars, E.made of older stars
Explanation:
Globular clusters are old clusters of stars that have remained in a gravitationally bound system. These clusters are usually roughly spherical and can contain anywhere from a few thousand to a million stars.
Globular clusters are found in our galaxy’s spherical halo, so they are distributed above, below, and level with the plane of our flat, disk-shaped Milky Way.
Open clusters are much younger and smaller than globular clusters. They are the recent birthplaces of new stars, which form out of clouds of dust and gas, and contain only hundreds or thousands of stars. Though the stars in an open cluster formed together out of the same material, they do not remain gravitationally bound over time and spread out, scattering their stars far and wide. Because they are not gravitationally bound, these clusters can have random and irregular shapes. They are located in the plane of our galaxy, along the spiral arms where the gas and dust in the Milky Way
