A scientist who studies the interactions or interrelationships between organisms and their physical environment is an Ecologist.
Answer:
Certain segments of DNA will be lost in the translation process, rendering certain genes obsolete in particular cells.
Explanation:
DNA, RNA, and environmental factors all play significant roles in cell differentiation. While DNA is identical in every cell, evert cell does not express the same genes. In different cells, some genes are turned "on" while others are suppressed or turned "off." The combination of genes expressed allows for cells to differentiate.
(Copied from USATESTPREP)
8-11 is -3. When subtracting a bigger number from a smaller number, the answer will always be negative.
Answer:
The correct answer is physical boundary.
Explanation:
In my opinion, the kind of boundary it signifies is the physical boundary. The physical boundary is the most general type and is a naturally taking place obstruction in between the two regions due to the existence of either an ocean, river, desert, or mountain ranges. At various occasions, the political boundaries between the states or the countries form along the physical boundaries.