Your dog has puppies. a pair of homologous chromosomes inside a puppy's cell
a. must be genetically identical
b. must have the same alleles in the same locations
c. were both inherited from the same parent
d. will fight with each other to determine which one will be dominant
e. will have the same genes at the same locations

The correct answer is E. will have the same genes at the same locations.

Explanation:

Homologous chromosomes are the pair chromosomes one from each parent that have similarities in length, size, gene position, and centromere position. Homologous chromosomes have the same genes at the same location on the chromosome.

One gene can be found in multiple forms called alleles but a homologous chromosome can have a maximum of two alleles of a gene and these alleles can be the same(homozygous) or different(heterozygous) and can be dominant or recessive.  

So a pair of homologous chromosomes inside a puppy's cell will have the same gene at the same location but can have different alleles of that gene.

explanation:

the fossil record extends back to a dog-like ancestor some 55 million years ago, which gave rise to the first horse-like species 55 to 42 million years ago in the genus eohippus.

answer: tributaries flow into rivers.

wetland is a biome that develops when the water gets accumulated in a land exhibiting a huge depression. these form either seasonally or permanently. the water in the wetland comes from rivers, lakes, ocean, flood, rain or other sources. the wetlands includes mangroves, marshes and peatland.

tributaries flow into the rivers develops a wetland because such water will get deposited in the depression and will restrict the original flow of tributary water. hence, water with low drainage current combines with the river water.