Sentences with phrase «like animal embryos»

If the Doushantuo fossils are more like spore sacs than like animal embryos, that would explain why no adult animal fossils have turned up.

Not exact matches

As the time for birth drew near, the fetus moved from the animal - like embryo to the human child.

In To Gaurus, Porphyry's main concern is to establish the plant - like nature of the embryo over and above its animal - like qualities.

There is no lack of persons who approve of abortion and its legislation, and to relieve their conscience pretend that the human embryo has no soul, is not a person, and therefore can be dispensed with like an animal.

Example in point: Opposition to embryonic stem cell / human cloning research: It isn't anti science to oppose treating nascent human life like a corn crop or manufacturing embryos, anymore than it is anti science than the Animal Welfare Act the proscribes what can and can't be done in scientific research with some mammals.

A new study reveals that this process may have evolved long ago, as it shows that embryos from an ancient spider develop just like those of vertebrate animals.

Transplanting a head organizer from one embryo into another embryo, for instance, created two complete animals, attached to each other like Siamese twins.

But we do know that, like other animals, the human embryo in its earliest stages consists of three main components known as germ layers: the ectoderm, the endoderm and the mesoderm.