A scientist investigated the effects of morning temperatures on flower width. Which most likely could have been a source of error in his investigation? The distance calipers were recalibrated before each data collection session. The control group flowers were a day older than the experimental group flowers. The measurement units were not converted during the data analysis phase. The flower width data were collected at about the same time every day.

The control group flowers were a day older than the experimental group flowers.

Explanation:

Edgenuity

A scientist investigated the effects of morning temperatures on flower width. Which most likely could have been a source of error in his investigation? The distance calipers were recalibrated before each data collection session. The control group flowers were a day older than the experimental group flower

Explanation:

it's so easy by thinking it out bruh.

hydroxyl -oh

alcohols, always polar, can form hydrogen bonds with h2o molecules

carboxyl -cooh  

cargoxylic acids, has acidic properties which is a source of hydrogen ions, found in cells in ionized for with a charge of oh-1

carbonyl > co

ketone if within skeleton, aldehyde if group is at the end of skeleton, k & a may be structural isomers, it determines 2 sugars (ketose & aldose)

amino -nh2

amines, acts as a base, it can pick up h+ ions from surrounding solution, ionized with charge of 1+

methyl ch2

addition to rna/dna affects and gene expression

phosphate -opo3 ²⁻

organic phosphates, contributes to negative charge to, molecule that it is a part of, and potential to react with h20

sulfhydryl -sh

thiols, cross-linking stabilize the protein, and it is structure

the backbone of the dna and rna compound is sugar phosphate.