In biology, cell theory is a scientific theory which describes the properties of cells. These cells are the basic unit of structure in all organisms and also the basic unit of reproduction.<span>The cell theory states that: All living organisms are composed of cells. Multicellular organisms (example: humans) are composed of many cells while unicellular organisms (example: bacteria) are composed of only one cell. Cells are the basic unit of structure in all organisms.</span>
Answer:
B. a nucleus
Explanation:
cell walls and chloroplast are both found in plant cells, not in animal cells
Answer:
in the S phase of the cell cycle
Explanation:
<em>Scientists isolate cells in various phases of the cell cycle. They find a group of cells that have 1.5 times more DNA than G1 phase cells. The cells of this group are _____.</em>
The cell cycle has two main stages which is the interphase and the M phase.
While the M phase is characterized by active division, the interphase consists of G0 phase which is entirely a resting phase for cells that do not need to divide ordinarily, G1 phase which is a phase for cell drowth and development, S phase which is a phase for DNA synthesis or replication and G2 phase which is a phase for protein synthesis.
Hence, cells in the S phase and G2 phase of the cell cycle are expected to have more DNA than cells in the G0 and G1 phase.
<em>Essentially, the amount of DNA is doubled in the S phase. Therefore, if the cell group have 1.5 times more DNA than G1 phase cells, it means the cells are still in S phase.</em>
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By conserving the residential water by recycling we can keep the fresh water as a renewable resource.
<u>Explanation:</u>
Preserving water is significant on the grounds that it keeps water unadulterated and clean while ensuring the earth. Private water use incorporates both indoor and outside family unit water utilization. Water is utilized inside for showering, flushing toilets, washing garments, washing dishes, drinking, and cooking.
Open air water use incorporates washing the vehicle and watering the grass, pools, and plants. This water alludes to the procedure which prepared the wastewater and changes over it to a reusable structure. Additionally gather water during the blustery season to use in latrine flush, watering plants, sprinkle in the nursery, and so on. Utilizing crude water like seawater or non-cleaned water in the latrine is likewise acceptable.
