Brett Waldman

[Brett Waldman @FLHS_Brett]

In a species of plant, the sudden appearance of one plant with a different leaf structure would most likely be the result of chromosomal mutations. #leregentsreview

[Brett Waldman @FLHS_Brett]

Chromosomal alteration may affect the phenotype of an organism. #leregentsreview

[Brett Waldman @FLHS_Brett]

A chromosomal alteration in which one or more pairs of homologous chromosomes fail to separate normally during meiotic cell division is known as nondisjunction. #leregentsreview

[Brett Waldman @FLHS_Brett]

Diagram 1 best represents a chromosome mutation known as a deletion. #leregentsreview

[Brett Waldman @FLHS_Brett]

Translocations involves the transfer of one section of a chromosome to a nonhomologous chromosome #leregentsreview

[Brett Waldman @FLHS_Brett]

A deletion is a change that involves the loss of part of a chromosome. #leregentsreview

[Brett Waldman @FLHS_Brett]

The process illustrated in the diagram is an example of a chromosomal alteration. #leregentsreview

[Brett Waldman @FLHS_Brett]

In certain plants, each cell contains double the normal chromosome number. These 4 n cells are an example of the condition known as polyploidy. #leregentsreview

[Brett Waldman @FLHS_Brett]

The failure of homologous chromosomes to separate from each other is known as nondisjunction #leregentsreview

[Brett Waldman @FLHS_Brett]

An analysis of chromosomes may show the loss of a portion of a chromosome. This chromosomal change is a deletion. #leregentsreview

[Brett Waldman @FLHS_Brett]

Chromosomal mutations involve changes in the chromosome number or the chromosome structure. #leregentsreview

[Brett Waldman @FLHS_Brett]

Sometimes a section of a chromosome is lost during meiosis. This loss results in a change in genetic material known as a deletion. #leregentsreview

[Brett Waldman @FLHS_Brett]

Diagram 3 best represents a gamete that formed from this cell and that contains a mutation caused by chromosome breakage and reattachment. #leregentsreview

[Brett Waldman @FLHS_Brett]

The appearance of the chromosomes in B indicates that exposure to radiation has caused chromosomal alterations. #leregentsreview

[Brett Waldman @FLHS_Brett]

RNA acts as a messenger by carrying instructions from DNA for controlling the synthesis of proteins which occurs in ribosomes. #leregentsreview

[Brett Waldman @FLHS_Brett]

@jtravisflhs @FLHS_emorales A direct result of global warming is a rise in sea level. It has also been predicted that coastal cities could soon be underwater in hundreds/thousands of years.

[ARCHIVED - NASA Climate @NASAClimate]

Sea level rise is caused primarily by two factors related to global warming: the added water from melting ice sheets and glaciers and the expansion of seawater as it warms. Get NASA’s latest sea level data, as seen from space. https://t.co/f8Cpqo7QQT

[Brett Waldman @FLHS_Brett]

@FLHS_emorales @jtravisflhs These greenhouse gases are a huge cause of the warming of the plant. Plus, the emissions of these gases are a result of human activity. #climatechange

[NASA Earth @NASAEarth]

Are greenhouse gases, which are released ♨️ by human activities, affecting precipitation 🌧 and drought? Yes, and if you know how to look, the answer is in the trees 🌲🌳🌴

[Brett Waldman @FLHS_Brett]

@FLHS_emorales @jtravisflhs In the past couple of months, the level of atmospheric CO2 has been up an astonishing amount. If we keep going at this rate, the earth can reach the point of no return. #stopglobalwarming

[ARCHIVED - NASA Climate @NASAClimate]

Last month's global average concentration of atmospheric carbon dioxide (CO2) was about 410 parts per million (ppm), up about 2 ppm from March 2018. https://t.co/qjYgQZI1Al

[Brett Waldman @FLHS_Brett]

Peat swamps in the Leuser ecosystem store large amounts of carbon in the ground and when these ground are burned, huge amounts of carbon are emitted into the atmosphere which pollutes the air. #LoveTheLeuser

[Brett Waldman @FLHS_Brett]

People from Indonesia depend greatly on the Leuser ecosystem because it supplies fresh water to help them survive with the use of watersheds. #LoveTheLeuser