Kaplan Blue and Dat destroyer say 3 chambers and there are two problems that say the same thing so i believe there was no typo.

princeton review on p.123 says reptiles have a four-chambered heart.

so...is it 3 or 4?

And also, do i need to memorize all different phylum, class, genus, species and examples for each?
i mean there are so many diff phylum, class....listed and at least 5 examples that belong to each. For example, Class arachnida includes spiders, ticks, scorpians and mites:(

the only problem i saw from kaplan is asking if sapien in homo sapien belong to which? and answer is species.

DAT destroyer has at least 10~15 problems out of 140 related to this and say memorize them all :eek:

I thought DAT doesn't test info in detail but if i have to memorize at least 50 diff class with over 100 examples total, and if that's all from 1 chapter, that's not something easy to do :scared:

In general, most reptiles have a 3 chambered heart with the exception of a few which do have four.

In general, most reptiles have a 3 chambered heart with the exception of a few which do have four.


I concur... And i've been a reptile breeder for over 10 years... The only reptile to have a 4 chamber is crocs and gators... So for all testing intensive purposes, it's 3 chambers...