I have to say D is the most logical answer
Answer:
human activity
Explanation:
The wetlands and the coral reefs have gradually been destroyed by the humans and their activity. The wetlands were the first to be under the human influence and getting destroyed, while the coral reefs have come to have similar destiny in the last century. The reasons for the destruction are different. The wetlands have in general been destroyed on purpose, be it because they were epicenter of diseases, for making more land for agriculture, or making more land for settlements. The coral reefs have not been destroyed on purpose, but the human activity has resulted in lot of pollution of the ocean waters, as well as changes in the climate, and the fragile corals can not adapt quickly enough to these changes, so they die out quickly.
B a star
C a nebula
D the sun
E the force of gravity
Answer: Option 'B' is correct.
Explanation:
All the iron molecules that are in your body were originally created by a star.
During a star supernova, a very large amount of energy and neutrons are released by stars which allows heavier elements to be produced.
And when there is explosion of star occurs, those elements are found which is used to make DNA and DNA contains large amount of iron molecules.
Hence, Option 'B' is correct.
I think the answer is B - a star! Hope this helps!
O polygenic
O codominance
O dominance
O pleiotropy
Answer:
Pleiotropy
Explanation:
The pleiotropic is a type of genetic behaviour which influence and affect more than one trait. Sickle cell anemia disease is a type of pleiotropism. In sickle cell anaemia patients, haemoglobin A is entirely replaced with haemoglobin S. Such patients have the genotype HBs HBs. Heterozygotes who carry the sickle cell gene HBa HBs are said to have a condition called sickle cell trait thus the expression of two different genotypes by one single gene indicates pleiotropism.
Haemoglobin S crystallizes when oxygen concentration is low in capillaries making the red blood cells to assume a crescent or sickle shape. Such cells transport oxygen very poorly leading to anaemia.
metamorphic, igneous, sedimentary.
B)
igneous, sedimentary, metamorphic.
C)
igneous, metamorphic, sedimentary.
D)
metamorphic, sedimentary, igneous.?
Igneous (because of the lava), metamorphic (because of the pressure and heat), sedimentary (because of the erosion) is the correct order for rock cycle.
The rock cycle is a fundamental concept in geology that outlines the various transitions that take place between the three primary types of rocks throughout the course of geologic time. These rock types include sedimentary, metamorphic, and igneous. When a certain rock type is disrupted from its equilibrium circumstances, it undergoes transformation.
Sedimentary rock, igneous rock, and metamorphic rock are the three primary categories of rocks. The rock cycle is comprised of a series of physical processes, including melting, cooling, eroding, compacting, and deforming, each of which is responsible for the formation of a certain type of rock.
Learn more about rock cycles, here:
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-The Sun comes closer to Earth and increases its pull.
-The Moon comes closer to Earth and increases its pull.
-The Sun combines its gravitational force with that of the Moon on Earth.