Answer: B
Explanation: So air, like most other substances, expands when heated and contracts when cooled. Radiation cooling occurs when air near the ground is cooled by the Earth's surface losing heat by radiation.
<span>The division of the fur trade was mostly the
spark of the Pequot war. The Pequot war is a conflict between the Pequot tribe and the alliances that the European
colonists have made in Massachusetts Bay, Plymouth, and Saybrook colonies and
their native tribe alliance with the Mohegan tribes. <span>
<span>It was a
dispute that the Pequots lost; where about an approximate of 700 of these
tribesmen were either killed or sent to slavery. Access to the control of fur
trade divided the two tribes when they both decided to realign with English
trade sources. The Pequots made an alliance with the Dutch, while the Mohegan
made an alliance with the English. </span></span></span>
The correct option is INTRODUCTION OF EXOTIC SPECIES;
Exotic species refers to an introduced specie of an animal which is alien to the ecosystem in which it found itself and which has been transported to that ecosystem either intentionally or by accident. Exotic species normally have varieties of effects on the ecosystem to which they are introduced, sometimes the effect will be good and sometimes the effects could be devastating depending on the particular situation.
Factors which promote diversity include: larger size of the ecosystem, longer growing seasons and climatic stability.<span />
Repressor slows down transcription.
RNA Polymerase enzyme transcribes mRNA from DNA.
Explanation:
Promoters are the 100 to 900 bps long sequence of DNA, that helps in the initiation of transcription. The transcription gets slow down as repressor bind to the promoter region hampering the attachment of RNA Polymerase enzyme which is responsible for transcription.
The process of transcription is the conversion of DNA into mRNA as told in the central dogma of molecular biology. Enzyme responsible for transcription is RNA polymerase. It is the first phase of gene expression, where DNA strand is copied into mRNA called a primary transcript.
Answer:
answer from google: ( see explanation )
Explanation: During the first stage of meiosis, the HOMOLOGUES (1-23) are segregated into different cells, resulting in 2 cells that each have 1 copy of each of the 23 chromosomes (still duplicated from DNA replication).
