Answer:
through excess us of corbon(ii)oxide emitting product such as charcoal that cause global warming hence depletion of oxygen in air
Cytokinesis. The final cellular division to form two new cells. In plants a cell plate forms along the line of the metaphase plate; in animals there is a constriction of the cytoplasm. The cell then enters interphase - the interval between mitotic divisions.
Answer:
The correct answer will be option- B.
Explanation:
The gametophyte is the phase of the life cycle of the plant which produces the gametes of the plants.
The chloroplast is the organelle associated with the production of the food in the form of glucose using sunlight and carbon dioxide. The gametophyte is the reduced phase of the angiosperms and gymnosperms which lacks chloroplasts as the gametophyte of these groups directly depends on the sporophyte of the plants.
Thus, Option-B is the correct answer.
Answer:
The correct answer is option A. "a fossilized fish found in a layer of rock estimated to be between 15,000 and 25,000 years old".
Explanation:
It is estimated that the oldest fossils that can be reliably measured using carbon-14 must be organic and have an age of around 50,000 years. Therefore, a fossilized fish found in a layer of rock estimated to be between 15,000 and 25,000 years old will fit perfectly to be dated using carbon-14. Anything older than 50,000 years old must be dated using other radiometric dating approaches.
