Answer:
This statement corresponds to the first postulate of the cell theory:
All living things, whether they be unicellular or multicellular, are made up of cells.
Explanation:
The statement indicates the presence of universality in the composition of all living things by stating that cells can be observed in all organisms in the 6 kingdoms of life.
Cell Theory:
Cell Theory is the fundamental principle of biology. It states that:
- All living things are made up of cells, whether they be unicellular or multicellular.
- All cells are produced from pre-existing cells,not from spontaneous generation.
- The cell is the basic functional and structural unit of life.
No because of the whole population was identical they would not have genders and would not be able to reproduce. Reproduction is essential to evolution
Answer:
Skeletal muscle moves bones and other structures. Cardiac muscle contracts the heart to pump blood. The smooth muscle tissue that forms organs like the stomach and bladder changes shape to facilitate bodily functions.
Explanation:
Answer:
Linings of hollow organs
Explanation:
Smooth muscle cells are usually found in the lining of hollow organs such as all arteries and veins, wall of stomach, uterus, urinary bladder, digestive system etc. The cells of these linings are spindle shaped and consist of a nucleus at the center which lacks striations.
They work as a housekeeper and are under involuntary control except the heart. They lack striation because of irregular arraying of actin and myosin filament along the length of the cell.
~over hunting has killed a lot of species
~we genetically modify plants and animals to our liking
~we have introduced a lot of invasive species to different places effecting local wildlife
