Animal Science Review

Compared to animal cells, plant cells have three extra components including...

• cell wall

• organelles

• chloroplasts

• large central vacuole

Without a cell wall or chloroplasts, animals must find food and develop different tissues for movement and it all started at the cellular level in a process called

• mitochondria

• cell specialization

• nucleus

• organelles

As animals grow the cells do not enlarge, instead ___ ___ or "cloning" creates more animal cells through mitosis

• fertilization

• repair

• shrinking

• cellular division

Process of cellular division required for sexual reproduction is called...

• mitosis

• cytoplasm

• meiosis

• nucleus

Initial 14 days of a chicken's life or until the chicks are feathered and able to maintain body temperature changes is known as...

Period from 2 weeks through 16 weeks, where birds are no longer as fragile and not quite as susceptible to disease or temperature changes is known as

• grow-out

• chick

• maturity

• adulthood

The process of birds periodically shedding and renewing feathers is known as...

Loss of pigmentation by a series of hen body parts as an indication of decreased egg production is called

• discoloration

• bleaching

• maturity

• shedding

The four stages of chicken development are...

• embryo

• grow-out

• pullets

• chick

• adult chicken

By week 16, hens are considered mature because they have...

• grown into pullets

• reached full body size

• larger primary feathers

• reproductively matured