Cellular Shape Ratio of
Surface Area
to Volume

Cube 1 Regular
Tetrahedron 0.5
Cylinder 0.9
Sphere 0.6

In an experiment, the efficiency of oxygen exchange across the plasma membrane is being assessed in four artificial red blood cells. The table above lists some properties of those artificial cells.
Other conditions being equal, which artificial cell is predicted to be the most efficient in exchanging oxygen with the environment by diffusion?
A The cuboidal cell
B The tetrahedral cell
C The cylindrical cell
D The spherical cell

Classify the descriptions and examples as endocrine or neural control

In the california poppy, an allele for yellow flowers (c) is dominant over an allele forwhite flowers (c). at an independently assorting locus, an allele for entire petals (f) isdominant over an allele for fringed petals (f ). a plant that is homozygous for yellow andentire petals is crossed with a plant that is white and fringed. a resulting f1 plant is thencrossed with a plant that is white and fringed, and the following progeny are produced: 54 yellow and entire; 58 yellow and fringed, 53 white and entire, and 10 white andfringed. using the chi-square test, what would the probability value (p-value) be?

These are groups of reproducing populations that are insulated from other groups