Answer:
a ray because it has a jaw and a backbone
Explanation:
Ray fish is considered to be in class Chondrichthyes, and are characterized by their enlarged, winglike pectoral fins, cartilaginous skeleton, jaw, scales and backbone. Ray fish is in the same family as Sharks, however very smaller. It has a stinging pines which is considered as backbone.
It is not seahorse, because seahorse has no cartilaginous skeleton.
It is not Salmon, because it has no cartilaginous skeleton
It is not skates either, because skates has no backbone.
Answer:
Explanation:
Immigrants: People who move into another country to live.
William Penn:(1644 - 1718) An English Quaker who founded the colony
of Pennsylvania in 1677.
Quakers: Members of a religious movement known as the Religious
Society of Friends, which was begun in England in the 1600s. Quakers value
peace and support women's rights. During the 17th and 18th centuries,
Quakers were vocal opponents of slavery.
....................................News papers
Answer:
O.D. Electronic computers.
Explanation:
Electronic Numerical Integrator and Computer or ENIAC was the first electronic generated programmable computer that was invented in 1945 by John Mauchly, J. Presper Eckert, and designed by Eckert too. This electronic computer would be used for solving common problems like calculating numerical problems.
Made to solve <em>"a large class of numerical problems"</em>, this electronic computer helped in calculating for the construction of hydrogen bombs. This calculating machine was also used during the Second World War. Parts of it are on display at Washington D.C.'s Smithsonian Institution.
Thus, the correct answer is option D.
They created the number system and discovered that the earth was round by studying eclipses.
Hope this helps.
