Life Science
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| All cells have an internal substance called __________, a clear gelatinous fluid enclosed within a membrane. | Cytoplasm
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| Cells are composed primarily of water and the elements ________, ___________, __________,________ | Oxygen, Hydrogen, Carbon, Nitrogen
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| Growth in most organisms is caused by nuclear cell division.Through this new cells are made,in humans the 46 chromosomes in the cell divide through a series of steps resulting in 2 new cells that each has the original 46 chromosomes. | Mitosis
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| Making exact copies of the DNA in each of the two “daughter” cells, and is often called binary fission. This type of reproduction is also called __________ because only one organism involved & there is no exchange of genetic material or DNA. | Asexual Reproduction
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| The cell divides twice in a process called________. This is how sperm and egg cells are formed through a series of steps. | Meiosis
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| In this type of reproductive the flower is the reproductive organ the ovules are the egg cells, and the pollen contains the sperm. This form of reproduction is ________, because it requires the combination of DNA between 2 organisms of the same species. | Sexual Reproduction
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| __________ occurs outside the body, the female lays the eggs (ovum) and the males spray them with sperm to fertilize them. | Cross-fertilization
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| ___________ of plants takes place by cutting portions of the plant and replanting them | Asexual Reproduction
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| ____________ involves seeds produced by female and male plants, which are then cross-pollinated with help from insects or other animals. | Sexual Reproduction
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| __________ is the hereditary material of living organisms | Deoxyribonucleic Acid (DNA)
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| What are the four nitrogen bases that are paired in the double-helix structure of DNA | Adenine, Thymine, Guanine, Cytosine
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| Adenine pairs with what? | Thymine
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| Guanine pairs with what? | Cytosine
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| The gene for eye color and other traits that are the paired chromosomes in the same location are called? | Alleles
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Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
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To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
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Created by:
jwilliams2626
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