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Prehistroic animals (mainly insects hundreds of millions of years ago) were larger due to higher levels of oxygen in the atmosphere.

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What are differences between plants and humans?

Plants are autotroph and humans and animals are heterotroph.


What's the difference between a hedgehog and a porcupine?

Both porcupine and hedgehog are much similar looking but different animals with some noticeable differences exhibited between them with regard to their characteristics and distribution patterns. Despite their close appearance, some meticulous studying would reveal the differences between them.


What part of the respiratory tract is the Adams apple a part of?

The Adam's apple is part of the larynx, which is located in the upper part of the respiratory tract, near the throat. It is more prominent in males due to the differences in the size of the larynx between males and females.


Differences between the real ice age and the movie ice age?

The real Ice Age was a long period of time (around 2.6 million years ago) when Earth's climate was much colder, resulting in extensive ice sheets and glaciers. The movie "Ice Age" is an animated film series that features prehistoric animals embarking on adventures. While the movie is inspired by this historical period, it takes creative liberties for entertainment purposes, such as anthropomorphizing the animals and exaggerating certain aspects of their behavior.


Why can you get a virus from animals but animals can not get a virus from people?

Animals can get viruses from humans, but it's not as common due to evolutionary differences between species. Some viruses may not be able to cross the species barrier easily, while others may not cause severe illness in animals. However, viruses like flu can sometimes transmit between humans and animals.

Related Questions

What are the differences between the respiratory system of aquatic animals and non- aquatic?

The respiratory system of most non-aquatic animals is entirely enclosed in the human body and connected with the lungs. Many aquatic animals have developed open respiratory systems that include features like the gills.


What is the difference between flowers and reproductive organ of animals?

differences between flower reproductive to the animals


What are the differences between mold and animals?

mold is a plant


What are some of the differences between the ancient period and the prehistoric period?

In simple terms, we do have recorded information of ancient times in written form or other means. But prehistoric periods are just as the word implies -- it's before recorded history.


What are differences between plants and humans?

Plants are autotroph and humans and animals are heterotroph.


What are the two differences between plants and animals?

Plants have chlorophyll and cell wall while animals are heterotrophs and motile .


What 's the differences between living organisms and organisms that are alive?

people ,animals, and plants


What are the differences between a humans eye and a nocturnal animals eye?

Humans cannot see in dark night but nocturnal animals can see.


What are differences between vertebrae and invertebrate animals?

A Vertabrae has a backbone an invertabrae does not. She Waz right :)


What word is used to describe the differences between animals of same species?

Sub species , varieties .


What are the differences between human and plant reproduction?

the difference is that there are different parts in humans than there is in animals


Differences between modern horses and prehistoric horses?

prehistoris horses r lot's smaller and they have more hooves