Answer:
Plants photosynthesize, so they need, thus absorbs carbon dioxide. Marine plants also need carbon dioxide for photosynthesis so they absorb. Dead plant and animal matter decay to release carbon dioxide as a result.
A carbon footprint refers to the greenhouse gas emissions caused both directly, and indirectly, by an individual, a product, an organization, or an event.
On earth an object at rest has gravity acting on it
A large assortment of plant dispersal mechanisms.
Explanation:
Pretty much everything can be explained about Australia, as to where it was in the past, with which other large landmasses it was connected, its flora, its isolation from the other continents... One thing that still needs explaining is the large assortment of plant dispersal mechanisms, which is not typical for well established islands.
The reason as to why this is weird and hard to explain is because the well established islands have flora that is well adapted to their living conditions, and also it lacks competition from outside. In other words, they rule the place. The plants in Australia though exhibit dispersal mechanisms that are typical for the plants of the continental masses that are connected, so it causes big problem in explaining it.
The plastic trash gets transported all through the planet with the help of ocean currents. The term Great Pacific Garbage Patch was first named by Captain Charles Moore. He found that huge intact substances like cups, bottles, boxes, bags, and fishing nets, and other millions of smaller pieces of plastic over an estimated region covering about 650000 to 16000000 square kilometers.
The garbage patches are witnessed in the oceans of the world wherever there is gyre. The gyres refer to the enormous circulating regions of water comprising the prime surface currents of the globe, mediated by the existing winds. The plastics would have got caught up in a gyre and would have been ended up in a region, known as the garbage patch.
The currents present in the gyre take in the floating substance from around the periphery and trap it in the center. The currents and waves dissociate the plastic components into smaller pieces, however, it never goes away, and gets transported to different regions with the help of currents.
The ocean currents mediate and transport useful things like organic nutrients, heat energy, and marine species from one location to another of the planet. However, at the same time, they can also transport other unnecessary floating things like plastic garbage.
The plastic, mainly the larger pieces that float on the surface are transported at a faster rate than the water present beneath it, this is because the wind that moves the current also moves the plastic. In this sense, the plastic is flowing freely all over the ocean surfaces of the globe.
Answer:
The presence of an additional chromosome
Explanation:
Look at "pair" 21. See how there are THREE chromosomes instead of TWO? Normally, there would only be two chromosomes in each pair but this karyotype shows a trisomy (see def. below) of the 21st pair. This was caused by a nondisjunction mutation of the 21st pair. The is also the karyotype of a person with Down's Syndrome.
Definition of Trisomy:
A condition of the presence of three chromosomes in a pair instead of two. This normally causes developmental irregularity.
