What are homologous chromosomes?
a. chromosomes that are similar in their size, shape, and gene content.
b. any chromosome in a diploid cell.
c. the two chromatids in a replicated chromosome.
d. similar chromosomes that are found in different individuals of the same species.

The correct answer is a. chromosomes that are similar in their size, shape, and gene content.

Explanation:

A homologous chromosome is the chromosome which is similar in shape, size, centromere position and they contain the same genes at the same locus also.  

One homologous chromosome comes from the father and the other homologous chromosomes come from the mother. These chromosomes have the same gene at the same locus but the alleles of that gene can be different in homologous chromosomes.  

The homologous chromosome separates during the meiosis so that the gamete has half the number of chromosomes. So the correct answer is a.

hydroxyl -oh

alcohols, always polar, can form hydrogen bonds with h2o molecules

carboxyl -cooh  

cargoxylic acids, has acidic properties which is a source of hydrogen ions, found in cells in ionized for with a charge of oh-1

carbonyl > co

ketone if within skeleton, aldehyde if group is at the end of skeleton, k & a may be structural isomers, it determines 2 sugars (ketose & aldose)

amino -nh2

amines, acts as a base, it can pick up h+ ions from surrounding solution, ionized with charge of 1+

methyl ch2

addition to rna/dna affects and gene expression

phosphate -opo3 ²⁻

organic phosphates, contributes to negative charge to, molecule that it is a part of, and potential to react with h20

sulfhydryl -sh

thiols, cross-linking stabilize the protein, and it is structure

false because ozone (o3) depletion does not cause global warming, but both of these environmental problems have a common cause: human activities that release pollutants into the atmosphere altering it.

global warming is caused primarily by putting too much carbon dioxide into the atmosphere when coal, oil, and natural gas are burned to generate electricity or to run our cars.

explanation: