All of the following are desirable qualities in a model organism except .) long life spanb.) ease of growthc.) common genetic mechanisms with other organismsd.) production of many offspring

Long life span

Explanation:

A model organism is a non  human specie that is used for study in order to understand a particular biological phenomena.

One of the qualities of a model organism is that; It should have a short life span this will make it more amenable to experimental manipulation due to short generational time. Therefor Long life span will not be a desirable characteristic.

Other desirable characteristic includes ease of growth and production of many offsprings.

Also common genetic mechanism with other organisms, they should share some degree relatedness.  

answer: i say it foxes

explanation:

you need to give us the answer options to for me to offical decide.

white blood cells or wbc s are mainly 2 types-

1.agranulocytes

2.granulocytes

the monocytes or macrophages of agranulocytes , dendritic cells which are accessory leucocytes, and b cells which is one type of lymphocytes   identify the antigens present on the pathogen's surface. these three cells are called antigen presenting cells(apc) which are phagocytes and destroy the antigens by secreting antitoxins. besides this leukocyte is always plays vital role in the immunity of the body.