What group of organisms use plasmodesmata for cell to cell communication and transfer of water, hormones, and other molecules?

When we want to infer the genotypes of humans with known phenotypes (e.g. for a genetic disease), we would typically use… 

13. The heart is enclosed in the ____, a fluid filled sac that protects it against infection and trauma.

Match the following questions to the correct statements.

Can errors in DNA replication (mismatches) be repaired? If so, how? 

Why do we observe a thicker myocardium in a diseased heart?

Answer the following question in one paragraph minimum:   What are some of the themes and subjects of British Art of the 18th Century (1700s)?

17. Flow travels from high pressure to low pressure

You find a cell under a microscope but you don’t know what it is. There are 10 chromosomes in the cell. Each chromosome seems to have a match that is the same length, so there are 5 pairs. This cell is [answer1] (haploid or diploid?) and the pairs of chromosomes that are similar in length are called [answer2].

Identify the following image by title, artist, and date: