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:
a) The genes present on separate chromosomes exhibit indepedent assortment.
b) The genotype of tall and purple flower parent= TTPp
The genotype of short and purple flower parent: ttPp
Explanation:
a) In a dihybrid cross, if the genes are present on the same chromosome, they will not exhibit independent assortment. The genes present on the same chromosome are called linked genes. Linked genes are inherited together. The absence of independent assortment of a linked gene gives more of parental types in F2 progeny. Therefore, if genes are not present on a separate chromosome, Mendel’s ratios deviate.
b) Alleles for tallness and purple flower are dominant. In the progeny, all the plants are tall. This means that the dominant tall plant is homozygous. With respect to flower color, the trait exhibits segregation of dominant and recessive alleles and both purple and white flower progeny are obtained. This makes both the plants heterozygous for the flower color gene.  
The genotype of tall and purple flower parent= TTPp
The genotype of short and purple flower parent: ttPp
 
        
             
        
        
        
Total magnification is 600x
Multiply the two magnifications together (40 times 15)
        
             
        
        
        
Answer:
50% probability of Pp (purple) or pp (white) genotype.
Explanation:
P = purple gene
p = white gene
Punnet squares show the possible genotypes and probabilities of each genotype in the offspring of a cross:
Purple flower genotype (heterozygous) = Pp
White flower genotype = pp
Punnet Square:
![\left[\begin{array}{ccc}&P&p\\p&Pp&pp\\p&Pp&pp\end{array}\right]](https://tex.z-dn.net/?f=%5Cleft%5B%5Cbegin%7Barray%7D%7Bccc%7D%26P%26p%5C%5Cp%26Pp%26pp%5C%5Cp%26Pp%26pp%5Cend%7Barray%7D%5Cright%5D)
Potential genotypes for offspring are Pp and pp;
According to the Punnett square, 2 of 4 offspring will have the Pp genotype and the other 2 will have pp genotypes;
This means 2 should be purple and 2 white;
Or, there is a 50% chance of having either genotype, of being purple or white.
 
        
                    
             
        
        
        
Because the lava cools quickly, there is no time to create big crystals of Basalt, which means that only small ones that are not visible to the naked eye exist, which means that it has an <span>aphanitic texture.</span>