Answer:
1. age structure age structure = 3 a male-only cruise
2. sex ratio = 4 a cruise full of retirees
3. mortality rate = 2 a cruise full of cancer patients
4. fecundity = 1 a cruise that happened to be carrying a large supply of birth control
Explanation:
1. Age structure mentioned all males
2. sex ratio was all retiree
3. mortality rate was based on patients health status leading them to death which was cancer.
4. fecundity was amount of fertility leading to birth rate which was controlled by birth control supply
Answer:
1.the smallest structural and functional unit of an organism
it was discovered by Robert Hooke
2. the unified cell theory states that: all living things are composed of one or more cells; the cell is the basic unit of life; and new cells arise from existing cells.
3 .Microscopes allow humans to see cells that are too tiny to see with the naked eye. Therefore, once they were invented, a whole new microscopic world emerged for people to discover
4. there are two basic kinds of cells: prokaryotic cells and eukaryotic cells.
prokaryotic cells :are simple cells that have no cell nucleus
eukaryotic cells: are complex cells with many organelles and other structures in the cell.
5.Plant cells have a cell wall in addition to their cell membranes while animal cells only have a surrounding membrane.
Both plant and animal cells have vacuoles but they are much larger in plants, and there is generally only 1 vacuole in plant cells while animal cells will have several, smaller ones.
6.PLASMA MEMBRANE/ CELL MEMBRANE
CYTOPLASM.
NUCLEUS.
7.Some substances pass through small holes in the surface cell membrane. This is called diffusion and does not require the cell to expend energy
<em><u>hope it was helpful</u></em>
Explanation:
Answer:
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B. Provide rigid structure for cell
Observation designed to minimize the effects of variables other than the independent variable.
