The diagrams shown represent an investigation concerning the growth of bean plants. The roots
of three identical bean plants were each placed
through a hole in covered tubes containing water
as shown in the diagrams. Nothing was done to
plant A. Vaseline was used to cover the upper
surface of the leaves of plant B. Vaseline was used
to cover the lower surface of plant C The water
level of each tube was marked and the plants were
placed together near a window. Aller 24 hours,
the water level in each tube was measured,
Vaseline
Volion
Cover
西
water level
at the art
А
с
Which tube represents the control for this
investigation?
i

Which statement describes an endocrine function rather than an exocrine function? a. salivary glands release saliva into the mouth. b. sweat glands release sweat onto the skin c. the pineal gland releases melatonin into the blood. d. esophageal glands release mucus into the esophagus.

Which statements about the fluid mosaic structure of a membrane are correct? select the three correct statements.which statements about the fluid mosaic structure of a membrane are correct? select the three correct statements.the framework of a membrane is a bilayer of phospholipids with their hydrophilic heads facing the aqueous environment inside and outside of the cell and their hydrophobic tails clustered in the center.because membranes are fluid, membrane proteins and phospholipids can drift about in the membrane.the diverse proteins found in and attached to membranes perform many important functions.the kinky tails of some proteins keep the membrane fluid by preventing the component molecules from packing solidly together.membranes include a mosaic, or mix, of carbohydrates embedded in a phospholipid bilayer.

The illustration shown is an ovum, a female sex cell. a mutation in this cell may be passed to the woman’s offspring during a) birth. b) mitosis. c) dna replication. d) sexual reproduction