1.form and structure of an organism or any of its partsmorphology 2.the splitting of a lineage into separate and distinct speciesspeciation

3.group of related organisms that share features and characteristicsspecies

4.small or underdevelopedvestigial

1) morphology

2) speciation

3) species

4) vestigal

Explanation:

Morphology is the study of forms or the physical appearance of organisms.

Speciation is the splitting of lineage into distinct species capable of interbreeding and producing fertile offspring.

Species is a group of organisms that are genetically related and share features and characteristics. They are capable of interbreeding and produce live offsprings.

Vestigal organs are organs that have lost their function over time, they are usually small and underdeveloped. Example is the human tail bone.

a.) a destruction fo cells by viral reproduction

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.