Answer:
While plankton are most abundant in surface waters, they live throughout the water column.
Explanation:
Plankton inhabit oceans, seas, lakes, ponds. Local abundance varies horizontally, vertically and seasonally. The primary cause of this variability is the availability of light. All plankton ecosystems are driven by the input of solar energy (but see chemosynthesis), confining primary production to surface waters, and to geographical regions and seasons having abundant light.
Answer;
0.39 times the mass of Venus
The mass of Jupiter is 0.39 times the mass of Venus
Explanation;
Important facts;
-Jupiter is 11.8 times bigger than Venus.
-Almost 1400 planets the size of Venus could fit inside Jupiter.
-Venus is the second closest planet to orbit the Sun
The mass of Venus is 4.87 × 1024 kilograms
The mass of Jupiter is 1,898 × 1024 kilograms
Hence; The mass of Venus/ The mass of Jupiter
4.87 × 1024 kilograms/1,898 × 1024 kilograms
= 0.39
Therefore; The mass of Jupiter is 0.39 times the mass of Venus
Answer:
When a warmer air mass travels over colder ground, the bottom layer of air cools and, because of its high density, is trapped near the ground. In general, cold air masses tend to flow toward the equator and warm air masses tend to flow toward the poles. This brings heat to cold areas and cools down areas that are warm
Answer:
transcription initiation
Explanation:
Transcription is a process by which genetic information from DNA is used to synthesize an RNA molecule, usually, a messenger RNA (mRNA), which is subsequently utilized to synthesize a protein by a process called translation. Transcription in prokaryotes has three steps:
1-Initiation: the RNA polymerase is a multisubunit enzyme (holoenzyme) composed of two α, one β, one β’ and one ω and σ subunits (α2ββ’ωσ). This holoenzyme binds to the promoter region of the template DNA strand.
2-Elongation. The sigma σ factor of the holoenzyme is released and the complex and the core enzyme (α2 ββω) moves along the template strand, thereby producing an mRNA sequence
3-Termination. This step can be Rho-dependent, where a protein named "Rho" recognizes the termination site and stop transcription, and Rho-independent (transcription continues until the termination sequence is reached).
In consequence, Rifamycin is likely to block the initiation of transcription because the core RNA enzyme needs to bind the sigma factor (σ) for initiation of transcription in bacteria.
