Epithelial cells .
a. make up the inner layers of connective tissue
b. form adipose tissue, cartilage, bone tissue, and blood
c. are striated
d. are found in the visible portion of hair, fingernails, beaks, or feathers
e. communicate with each other through chemical signals

a. make up the inner layers of connective tissue

Explanation:Epithelial cell are cell made up of inner connective tissues. This tissues helps in absorption of nourishment/ nutrient needed by the epithelial tissue.

They are arranged into sheet and joined to each other. This special properties aids it function.

Epithelial cell have modified surface structurally and through internal modifications this aids there ability for absorption and secretion of some glands such as liver, digestive tract and also act as barrier.

They form a sheet of cell called epithelia that serves as linning for body surfaces.

They can be classiified into three bases the shape on how the cells are packed;

Squamous epithelium- They are usually wider. They can be found in blood vessels

Cuboidal epithelium are almost similar in height and width

Columnar exceptionally are Tall and wide.

the answer is; comparing the frequency of collisions with and without the device

this makes the anti-collision system an independent variable and the collisions a dependent variable. if there are fewer collisions with an anti-collision system that without, then it can be stated that the system is a success. essentially, collisions under an anti-collision system are compared with the frequency of collisions by cars with the human drivers.

this is true, assuming that the allele is completely recessive and incomplete dominance is not a factor.