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After the drought of 1977, researchers hypothesized that on the Galápagos Island Daphne Major, medium ground finches with large, deep beaks survived better than those with smaller beaks because they could
answered
Jan 12, 2020
Social Studies
high-school
4
votes
213k
views
Which decimal number is equal to 3/18 ? 0.167 0.16 0.16 0.167
answered
Nov 21, 2019
Mathematics
middle-school
1
vote
98.3k
views
I really don't know what this means
answered
Oct 4, 2019
Chemistry
middle-school
4
votes
125k
views
Ava paid $4.90 for 2.5 pounds of walnuts. what is the cost of one pound of walnutKieth has a box of 416 crayons the he wants to share with 13 of his friends. If each friends get the same number of crayons,
answered
Aug 14, 2019
Mathematics
middle-school
0
votes
31.4k
views
Can you determine which instances reflect a valid experiment or conclusion? Check only those that are valid. a. A biology class is conducting an experiment to determine how soil pH affects the germination
answered
Mar 14, 2019
Biology
high-school
5
votes
12.9k
views
What dose a right angle look like ?
answered
Feb 21, 2019
Mathematics
college
2
votes
77.6k
views
Why is it necessary to classify each industrial revolution
answered
Feb 14, 2019
Biology
high-school
0
votes
88.8k
views
What is the first multiple of 30 that is divisible by 4?
answered
Jul 28, 2018
Mathematics
middle-school
3
votes
191k
views
Name two types of structures erected by Egyptian builders?
answered
Jul 23, 2018
History
middle-school
6
votes
207k
views
The atomic number of cesium (Cs) is 55. If an atom of cesium has 78 neutrons, what is the atomic mass of cesium?
answered
Jun 30, 2018
Chemistry
middle-school
3
votes
205k
views
Which systems interact to maintain blood pressure? A. urinary, circulatory, endocrine B. circulatory, respiratory, nervous C. muscular, endocrine, nervous D. urinary, endocrine, nervous
answered
Jul 5, 2017
Biology
high-school
2
votes
204k
views
Read the following passage from “Three Skeleton Key”: The rats of the sea are fierce…. Large, strong, and intelligent, clannish and seawise, able to put the best of mariners to shame with their knowledge
answered
Jun 20, 2017
English
high-school
4
votes
86.0k
views
Local law requires that drivers drive no faster than 45 miles per hour on local roads. The law outlines punishments for those who speed. The penalty increases the faster the person travels above the speed
answered
Feb 19, 2017
History
middle-school
0
votes
178k
views
Which two entrepreneurs believed they were examples of social Darwinism at work?
answered
Dec 20, 2016
History
high-school
3
votes
171k
views
The center circle of a soccer field has a diameter of 20 yards. What is the approximate area of the center circle? 62.8 square yards 125.6 square yards 314 square yards 1,256 square yards
answered
Oct 23, 2016
Mathematics
middle-school
3
votes
214k
views
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