Answer:
The answer is option A: layers
Answer:
1707-1778- Carolus LinnaeusHedeveloped the two part naming system fororganisms, using the genus and species,known as scientific naming.1707-1788- Georges-Louis Leclerc,Comte de BuffonIn his writings, he notedthat different regions of the world havedistinct plants and animals, even when theyhave similar environments. This isconsidered to be the first principle ofbiogeography. Buffon also suggested thatspecies may have improved and degeneratedsince creation, and that the Earth is probablymuch older than the 6,000 years widelyaccepted at the time.1769-1832- Georges Cuvier- influencedby the writings of Buffon, Cuvier foundthat layers, or strata, in the Earth's rockeach represent a different period in theEarth's history.
Explanation:
thats all ik sorry
Answer:
characterized by presence or absence of antigens
the blood types are A, B, O, AB
Explanation:
There are two antigens and two antibodies that are mostly responsible for the ABO types. The specific combination of these four components determines an individual's type in most cases. Erythrocytes and serum were related to the presence of antigens on these erythrocytes and antibodies in the serum. these antigens are A and B, and depending upon which antigen the erythrocytes express, blood either belonged to blood group A or blood group B. A third blood group contained erythrocytes that reacted as if they lacked the properties of A and B, and this group was later called "O" blood group. The fourth blood group AB, was added to the ABO blood group system. These erythrocytes expressed both A and B antigens.
Blood group Antigen present on RBC Antibodies in serum Genotype(s)
A antigen A anti-B AA or AO
B antigen B anti-A BB or BO
AB both A and B antigen none AB
O none anti-A and anti-B OO
Explanation:
Genetic diversity is the total number of genetic characteristics in the genetic makeup of a species, it ranges widely from the number of species to differences within species and can be attributed to the span of survival for a species. ... Genetic diversity serves as a way for populations to adapt to changing environments.
The need to increase efficiency and productivity while preserving natural resources, especially water and soil, is great. ... Advertisement. In light of these realities, growers are under pressure to produce more, pollute less, fulfill consumer preferences, and make a living.
