Answer:
Chromatin helps regulate DNA replication.
Explanation:
Chromatin helps condense DNA strands to smaller units that can be easily managed during DNA replication and gene expression. This also prevents the breakage of the strands and facilitates equal distribution of chromosomes during cell division (during mitosis and meiosis).
Answer:
The answer is B
Explanation:
Negative feedback mechanisms work to prevent sudden severe changes within the body.
Negative feedback helps in the maintenance of body parameters within their normal range thus prevent change within the body.
The cerebrum is the region of your brain where thought, vision, hearing, touch, and motion are processes. It's the largest part of the brain and contains the right and left hemispheres. The answer is cerebrum.
Answer:
Cell is the structural and functional unit of life.
Explanation:
The organisms are classified on the different characteristics basis on the similarities and differences among the organisms. On the cellular basis two main types of organism are unicellular organism and multi cellular organism.
The cell theory of the life was given by Schleiden and Schwann. The cell acts as the basic unit of life as all living organisms are made of the cell. The cell combine together to form tissue, tissue to form organs and organ system as given in the example of the cat.
I think Option (3)
The arms mostly contains old blue and blue-white stars
Explanation:
Spiral arms are the regions in stars extending from the middle of spiral galaxies and the barred spiral. Those long, thin areas look like a spiral and therefore give their name to spiral galaxies.
Spiral arms, though, include many young, blue stars, that render their arms so bright (due to the high mass density and the fast stellar forming rates).
