Scissors change the magnitude or direction of a force without any motor.
The epicenter is the outbreak of the earthquake
Answer:
Cell membranes are selectively permeable which means it allow certain molecules to move across it into and out of the cell. Cells need to be able to transport these substances to live and grow.
Transport of ions, water maintains the osmotic pressure of the cell. Transport of sugars like glucose is necessary to generate energy for the metabolic activities of the cell. Gases like CO2 are waste products of metabolic reaction which are removed by the cell through the cell membrane. Amino acids are required to make proteins.
Transport across cell can occur through active and passive transport and transport of these substance are necessary for a cell to live and function properly.
Answer:
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Stem cells in embryos generate all other tissues in the body. Opponents say the use of embryonic stem cells would encourage abortions.
Explanation:
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Stem cells in embryos generate all other tissues in the body. Opponents say the use of embryonic stem cells would encourage abortions.
The 4 types of organic compounds and their subdivisions within living organisms are:
1. Carbohydrates:
- Monosaccharides,
- Oligosaccharides,
- Polysaccharides.
2. Lipids:
- Fats,
- Phospholipids,
- Waxes,
- Sterols.
3. Proteins:
- Primary structure (amino acid sequence),
- The secondary structure,
- The tertiary structure,
- The quaternary structure.
4. Nucleic acids:
- DNA (deoxyribonucleic acid),
- RNA (ibonucleic acid).
