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Answer:</h2>
There are three types of meristems on the basis of position, i.e
- Apical meristem.
- Lateral meristem.
- Intercalary meristem.
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Explanation:</h2>
A meristem is the tissue present in most plants containing undifferentiated cells, found in zones of the plant where growth can take place. Generally differentiated cells(the cells other than meristems) do not divide and produce of a different type of cells.
Meristems are classified on the basis of their location in the plant:
- Apical meristem - these are the meristems located at root and shoot tips of the plant.
- Lateral meristem - these are the meristems located in the vascular and cork cambia in plants.
- Intercalary meristems - these are the meristems located at internodes, or stem regions between the places at which leaves attach, and leaf bases.
Result: There are 3 types of meristems.
Answer:
4.4 Animal tissues (ESG6H) Animal cells with the same structure and function are grouped together to form tissues. There are four types of animal tissues: epithelial tissue, connective tissue, muscle tissue and nervous tissue.
Explanation:
Answer:
A fossil is remain or impression of dead plants or animals which have lived thousands of years ago it can also be described as any preserved remains, impression, or trace of any once-living thing from a past geological age. Examples include bones, shells, exoskeletons, stone imprints of animals or microbes, objects preserved in amber, hair, petrified wood, oil, coal, and DNA remnants
Types of Fossils. Fossilization can occur in many ways. Most fossils are preserved in one of five processes preserved remains, permineralization, molds and casts, replacement, and compression.
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The question is incomplete. The complete question is attached below.
Answer:
1. DNA is the polymer of deoxyribonucleotides that contain the nitrogenous base, pentose sugar and phosphate group. The phosphate is attached with the 3 C position of the deoxyribose sugar. This leads to teh formation of phosphodiester bond.
2. The DNA backbone consists of phosphate and sugar. The nitrogenous bases are inserted inside the DNA molecule. These nitrogenous bases are linked together by the hydrogen bonds.
3. The adenine binds requires two hydrogen bonds to bind with thymine. This provide complementary nature to the DNA molecule. Uracil is present instead of thymine in RNA .
4. The guanine binds requires three hydrogen bonds to bind with cytosine. More amount of energy is required to break their bonds.
