Answer:
Stretching is a sign of growing, also known as having a growth spurt. Your body stretches in order to make room for things growing, for example, how a pregnant woman's stomach stretches to make room for her unborn baby.
Explanation:
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Exchange of gases in fish is very efficient because of: the large surface area of the gills. the large surface area of the blood capillaries in each gill filament. the short distance required for diffusion – the outer layer of the gill filaments and the capillary walls are just one cell thick.
Plants are producers and make their own food through a process of photosynthesis.
Organisms are classified into domains according to shared characteristics.
epithelial tissue can be found lining body cavities, as well as your skin is an epithelial tissue
Answer:
sigma subunit
Explanation:
Sigma subunit of RNA polymerase holoenzyme directs the enzyme towards the consensus sequences present upstream of the transcription start site. Completion of the initiation phase of transcription is followed by dissociation of sigma subunit from the transcription complex.
The protein NusA replaces the sigma subunit. The RNA polymerase leaves the promoter and starts the elongation
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