Investigation: Cells come from existing cells. Observe the two flasks, and record information about their appearance.
Day
1
Flask with open (broken) neck
Flask with intact neck
2
3
4
5

the organisms are not adapted to live in some communities or habitats.

i think a) betsy can donate only blood to mark is correct because, mark and betsy have the same blood type. whereas nobody else has b+ blood so betsy can't donate to them.

c. movement because i took the test and it lets me review my answers

a. by using fur or clothes to trap heat energy near the body