1. was reading 2. were writing 3. was working 4.were watching 5.were you playing? 6. were you drinking? 7. is he drawing? 8.is listening 9.is it raining 10.were they skating 11.were not sleeping 12. was not writing 13.is not helping 14.is George doing? 15.is speaking
PROTOZOAL DISEASES OF ANIMALS:Pathogens of these diseases are protozoa, piroplasma for example, parasites in the red blood cells (erythrocytes, leukocytes). Sick many species of wild and domestic animals — large and small cattle, horses, pigs, dogs etc. periplasmic Vectors are ticks. The simplest are also the causative agents of Eimeria, toxoplasmosis, sarcocystosis and other diseases.
DISEASES CAUSED BY INSECTS:Insects can be vectors of infectious and invasive diseases, as well as cause independent of the disease. For example, Ovodova disease, sipunculidae (lice), etc. Many of the insects are pests of animal products — carpet beetle, moth etc.
Они очень сильно и усердно работают