Answer: Atmosphere
Explanation:
Atmosphere is the part of the earth, known as the gaseous part, since it contains gases such as nitrogen (about 78%), oxygen (about 21%), Carbondioxide (about 0.03%), and rare gases to make the rest.
Thus, atmosphere contains the most whole of oxygen and carbon dioxide
The question is asking to choose among the following choices that states the length of time that an organism expected to live, and base on my research and further investigation, I would say that the answer would be A. life span. I hope you are satisfied with my answer and feel free to ask for more
The answer is “Chromosomes are made of DNA!”
The signaling molecule for flowering might be released earlier than usual in a long-day plant exposed to flashes of red light during the night.
Higher plants are sessile organisms that sense and respond to environmental stimuli such as light and chemical cues by changing their morphology.
The signaling pathway uses a complex network of interactions to coordinate biochemical and physiological responses such as flowering, fruit ripening, germination, photosynthetic regulation, and shoot or root development.
These signals are first recognized by receptors and transmitted through complex networks to the cell nucleus.
The signal is transduced to the nucleus by one of several systems involving GTP-binding proteins (G proteins) that change activity upon GTP binding, a protein kinase cascade that sequentially phosphorylates and activates various proteins and Membrane ion channels that alter the ionic properties of cells.
This signal is manifested in the nucleus as a change in the activity of DNA-binding proteins, transcription factors that specifically interact with and regulate the regulatory regions of genes.
Thus, detection of environmental signals is transmitted through transduction pathways, and changes in transcription factor activity can coordinate expression changes in gene portfolios to guide new developmental programs.
Learn more about signaling here : brainly.com/question/9381928
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