Answer:
First claim '' cats are very smart animal''.
Second claim '' cats make bonds with humans''.
Explanation:
There are two claims that are scientifically proven about cats i. e. cats are very smart animal because they have highest number of neuron about 300 millions present in their brain which gives them the ability of intelligence and problem solving. They make emotional bonds with their owners just like dogs and can be trained by their owners so that's why many people make cat as a pet animal in their houses..
Answer:
The liquid nitrogen refrigerator consists of a “tank within a tank,” with insulation under vacuum between the inner and outer tanks. It should be stored in a clean, dry area, preferably on a wood stand to avoid possible corrosion from contact with wet or damp concrete.
Explanation:
Answer:
Monocots have only one seed leaf inside the seed coat. Dicots have two seed leaves inside the seed coat.
Explanation:
Monocots: Often only a thin lead, because the endosperm to feed the new plant is not inside the seed leaf.
Dicots: Usually rounded and fat, because they contain the endosperm to feed the embryo plant.
Answer:
d) genetic characteristics such as ribosomal RNA sequences
Explanation:
Carl Woese and his collaborators identified two major branches of prokaryotic evolution which are bacteria and archaea. They used 16S rRNA sequencing to study the similarities and differences between archaea and bacteria.
After sequencing the complete genome structure of Methanococcus jannaschii in 1966 which is an archaea they concluded that bacteria are more closely related than humans than bacteria.
After many years Carl Woese gave the three-domain system which divides prokaryotes into archaea and bacteria according to differences in their rRNA sequencing. Eukarya was the third domain. So the correct answer is d.
