5. scientists need to know how accurate their results are. to do this, they calculate what is
known as percent error (% error). this is done by using the simple forma
%error =
units off
-
actual (accepted) value)
-
100%
for instance, if a student read a graduated cylinder to be 9.8 mil and it really was 10 m.
then the student's error was [10 -9.8 = 212 off=0.02 x 100% = 2% emon
using this formula, and the accepted value of 10 g for 1 ml of h20, figure your
show your work.
emon
garatue data for water in

humans are now responsible for causing changes in the environment that hurt animals and plant species. we take up more space on earth for our homes and cities. we pollute habitats. human activity often changes or destroys the habitats that plants and animals need to survive.

the answers are as following:

1. c. double helix, nucleosome, coil, supercoil, chromosome

2. b. g2 phase, preparation for mitosis

3. d. interphase consists of the g1, s, and g2 phases

4. c. metaphase

5. a. chromosomes are duplicated before cell division so that each new daughter cell has a complete set