Some students are instructed to put a celery stalk in a red dye solution for a lab activity. first the students carefully cut the bottom of the stalk with a scalpel. then they put the stalk in the beaker with the solution and place the beaker on a shelf in the lab room. the next day they check the stalk and make observations. the students note that the leaves at the end of the stalk have changed color from green to red. the students cut across the celery stalk and use a hand lens to see that the small tube openings along the edge of the celery stalk are also red. the cross section is shown below. how do the plant systems work together to make this movement of liquid possible?

Which statement best describes the relationship between observations and conclusions? a) observations are based on conclusions b) conclusions are based on observations c) observations and conclusions both depend on research d) neither conclusions nor observations depend on research.

What is the difference between self-pollination and cross-pollination? question 2 options: self-pollination leads to the creation of a fruit. cross-pollination does not. during cross-pollination, ovules are carried from one plant to another plant.. during self-pollination the ovules stay on the same plant. during cross-pollination, ovules are carried from one plant to another plant.. during self-pollination the ovules stay on the same plant. during cross-pollination the pollen grains are carried from one plant to another plant. during self-pollination the pollen and ovules are from the same plant. during cross-pollination, the pollen grains travel from the stigma to the anthers. during self-pollination, the pollen grains travel from the anthers to the stigma.

What are the types of mutations, and how does each alter the encoded protein? college level answer