Proteins that protect an organism from a second attack of the same pathogen are called a-leukocytes
b-antibodies
c-macrophages
d-oligodendracytes​

Recombinant dna (rdna) creates offspring which are genetically identical to the parent is the process of breeding only organisms with desirable traits involves the removal of the nucleus of a cell combines genes from organisms of different species in a lab

How water is moving through the ecosystem ?

What is the starting point in replication called