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What is the name of an animal without a notochord, but has a backbone?
answered
Sep 29, 2019
Biology
high-school
5
votes
138k
views
Suppose that a country has the resources to produce 3 million cars and 100 million tons of iron ore every year. Why is it a problem if the country only produces 2 million cars and 75 million tons of ore
answered
May 10, 2019
Social Studies
high-school
4
votes
10.0k
views
Many of the principal features of modern archaeology, particularly chronology and description, were established in the 19th century and continued to develop through the first half of the 20th century;
answered
Apr 12, 2019
History
high-school
5
votes
85.3k
views
A farm tree is going out of business. It has 45 maple trees and 27 pine trees left for sale. How much money would the owners make if they sell all the trees?
answered
Jan 29, 2019
Mathematics
middle-school
1
vote
150k
views
The 40 students in a physical education class chose sports to play during the class. Soccer was chosen by 30% of the students and 1/5 of the students chose football. How many more students chose soccer
answered
Jan 16, 2019
Mathematics
middle-school
5
votes
90.8k
views
Science plz help #30
answered
Nov 21, 2018
Biology
high-school
1
vote
209k
views
A mahogany desk with a cash price of $810 is offered on the installment plan at $50 down and $58 per month for 15 months. What is the total cost of the desk?
answered
Mar 8, 2018
Mathematics
high-school
7
votes
200k
views
The prairie settlers endured all of the following hardships except: a. The sod was difficult to plow. b. There were no railroads to transport goods and livestock. c. The prairie experienced extreme temperatures
answered
Jan 28, 2018
History
middle-school
5
votes
230k
views
What is the difference between cells in onion peel and cells in spinach
answered
Dec 1, 2017
Biology
high-school
4
votes
203k
views
Which of the following is an example of a long-term climatic change? A. Blizzard B. Summer C. Winter D. Ice age
answered
Nov 8, 2017
Geography
high-school
1
vote
53.6k
views
Which could be the measures of the three angles of an acute triangle? A. 45°, 55°, 80° B. 35°, 45°, 100° C. 45°, 45°, 90° D. 20°, 50°, 110°
answered
Nov 15, 2016
Mathematics
high-school
5
votes
196k
views
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