the most important invention was the plow
are kangaroo rats edible
No. Rats are a modern species. Humans evolved from a series of hominids and hominins, which themselves evolved from smaller mammals which survived the K-T extinction event. These smaller mammals are also what rats evolved from.
The experimental group of rats gained more weight.
For humans, nothing. (It may well be a vitamin for rats.)
It's a measure of how toxic a substance is. LD50 stands for lethal dose 50--it's the amount that, when given to a group of laboratory rats, will kill 50% of them. Often expressed in milligrams per kilogram of body weight (since it usually takes more poison to kill a bigger animal).
The rats of nimh know Jonathan Frisby because they were held captive at nimh and were being experimented on
NIMH
Why does mrs frisby not explore the rats home
Beacause he had light bulbs in his car.
NIMH stands for National Institute of Mental Health. In the book "Mrs. Frisby and the Rats of NIMH," the NIMH is a research laboratory where the rats were experimented on and gained enhanced intelligence.
No, Nicodemus does not meet Jonathan Frisby in the book "Mrs. Frisby and the Rats of NIMH." Jonathan Frisby is actually deceased before the events of the book, and it is his widow, Mrs. Frisby, who seeks help from the rats of NIMH to save her family.
Robert C. O'Brien wrote "Mrs. Frisby and the Rats of NIMH." It was first published in 1971.
In "Mrs. Frisby and the Rats of NIMH," the laboratory doctor is Dr. Schultz. He is the scientist who conducts experiments on the rats at the National Institute of Mental Health (NIMH) in an effort to enhance their intelligence.
Not by Dragon.
The rose bush
The rats in "Mrs. Frisby and the Rats of NIMH" have the illusion that they need to rely on humans for survival. Through their experiences and learning from their time at NIMH, they gradually realize their own intelligence and capabilities, leading them to break free from this illusion and create their own independent society in Thorn Valley.
they all die