Reptiles first appeared during the _____ era.

a) Paleozoic
b) Triassic
c) Mesozoic
d) Cenozoic
e) Jurassic

yumni

over 6 years ago

Animal Biology

12 replies

balay

over 6 years ago

Reptiles were first found in Paleozoic era. There are over 7000 species in this class. Turtles, crocodiles, alligators, gharials, lizards, snakes and tuatara are included in reptiles. Some of the key features in reptiles are:

They all have backbone
They all lay eggs
They all are cold blooded
Reptiles are eukaryotic, meaning they have the cells with nucleus.

100%

dulal

over 6 years ago

Paleozoic era.

to see other 10 answers

The term "Pathetic fallacy" was first appeared in the work of which author?

I would be grateful if someone could help me with this question. It is an important topic for the exam.

presman

over 13 years ago

Undefined

What was the total number of students who appeared in CLAT in 2008?

How many students applied in the first ever CLAT held in India?

christin

over 13 years ago

Biology

"What does the body use first during starvation? "

"I am reading through through to undernourishment everywhere in the online & even though some resources declare which the soundbox will use kept excess fat as muscularity, people suggest that the entire body uses muscle tissue. That is truly correct? As well as is that no one is aware of because no one is voluntarily depriving them selves to learn? Will I discovery factual answers on the net? Should I actually follow wondering hither? Should the soundbox does employ muscle very first next how does that keep excess fat? Isn't which a remnant of the past, the fact each of our forebears had periods associated with dearth, & consequently the body kept on to weight to work with inwards these periods? In which would seem disadvantageous & very dysfunctional; the fact that system merchants an issue that it's reluctant make use of. On the other hand, brawn relies on a large amount of muscularity in the soundbox & in the course of misery one's body is wanting to save power, so that it theoretically damages that muscle tissue so as to minimize muscularity ingestion as a whole. On the other hand, brawn is crucial in order to movements in the body. Bones don't move on their own & the posterior tibial muscle draw & push on the actual cuboid, add together appearance & anatomical structure & offer security for the internal organs. This particular appears ineffective as well & leads everyone to be able to question, exactly why could the entire body demolish it really is capability to proceed through malnourishment? Your body does not want for you to pass away & removes the actual external, unwanted & lowest first before it's forced to utilize means of which bring about it is unique decline. Just as the situation connected with hypothermia, as the freezing makes its presence felt wholly methods are generally directed to your important parts while hands or legs ar sacrificed. I smelling false information & fabrication, I just now don't know exactly where it's caused by. Tin anybody assistance? "