Donor animal
An animal taken by a predator as foodAn animal that is hunted by another.
xenografts
Fruit Flies and frog eggs are long-time,well characterized standbys in the lab environment,and specific manipulations allow researches to introduce genes from other organisms into these species
precautions to be be taken for animal attacks
The animal would quickly adapt to the new environment.
About half of human embryos are spontaneously aborted (that is, with no overt actions taken by the mother or others); see http://www.emcom.ca/health/abortion.shtml for more details.
"Prey" refers to an animal that is hunted and killed by another animal for food. It can also refer to a person or group that is easily exploited or taken advantage of by others.
Yes, some stem cells do come from humans. The stem cells are taken from embryos. Animals also have stem cells used in research.
Animal captivity is when an animal of any shape or size is taken into a zoo to be looked after or help there species
Taken aback
The animal was usually taken off to the slaughter house or retired for prdoucing babies.
It's a method to produce more offspring from one donor cow than what she can produce if she were bred and produced calves normally. These embryos that come from a superior cow (which come from a process called super-ovulation) are taken out of that donor cow and put into other non-related cows to develop into calves.