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Answer:</u></h2>
<u>cardic muscles:</u> are present only in the heart .single cell is not very strong by itself, millions of cardiac muscle cells working together are easily able to pump all of the blood in the body through the heart in less than a minute. Cardiac muscle cells have a branched shape so that each cell is in contact with three of four other cardiac muscle cells.
<u>characteristics of cardic muscles: </u> one nucleus ,striated, involuntary, branched and joined to one another by intercalated discs that contain gap junctions for depolarization between cells and hold the fibers together when the heart contracts.
Answer:
1) A double Helix with complementary bases in the middle. The backbone is made of sugar and phosphates. The middle is bases
2) To hold the genetic info for the cell
3) To bring the genetic info from the nucleus to the ribosomes as DNA can't leave the nucleus
4) To bring amino acids to the ribosomes to help build a protein
5) A chain of amino acids held together by peptide bonds
6) Ribosomes
7) Because those are the bases that are complementary in DNA so they must be equal
8) It could lead to a mutation as it would cause the mRNA to code for a different amino acid and thus a different protein will be made
9) DNA is the blueprint for mRNA which will travel to the ribosomes and code for specific amino acids which will eventually build a protein
Your answer would A insects because insects are the only invertebrates that can maintain flight. FOr example Butterflies and Flies Can maintain flight
Hope this has helped :)<span />
Answer:
<em>T</em><em>he cytoskeleton</em>
<em>The cytoskeleton functions to create a network organizing the cell components and to also maintain the cell shape. It also provided a uniform movement of the cell and its organelles, by the filament system network found in the cell's cytoplasm</em><em>.</em>
<em>Hope</em><em> </em><em>this</em><em> </em><em>helps</em><em> </em><em>u</em><em>.</em><em>.</em><em>.</em>
The correct answer is D) fern gametophyte bearing only antheridia.
