Name three cattle diseases and their causes?

Clostridial Disease, or "Blackleg"

BRSV (Bovine Respiratory Syncytial Virus)

BVD (Bovine Viral Diarrhea)

Explanation:

Clostridial Disease, or "Blackleg" :Infection occurs when animals ingest bacterial spores while grazing. The bacterial spores penetrate the intestine and are disseminated via the bloodstream to the skeletal muscle, where the spores remain dormant.

BRSV (Bovine Respiratory Syncytial Virus): It is a very serious respiratory disease which replicates in nasal epithelium and then disperses throughout the upper respiratory tract to the bronchial tree.

BVD (Bovine Viral Diarrhea): BVD is transmitted in a number of ways. Either through a congenital infection of the fetus or after birth

desert perennials often survive by remaining dormant during dry periods of the year, then springing to life when water becomes available. most annual desert plants germinate only after heavy seasonal rain, then complete their reproductive cycle very quickly.

answer: angiosperms

dicots

angiosperms are highly evolved plants, they produce seeds which are enclosed within in a carple. these are the largest group of plants on earth. they include trees, shrubs, herbs and small flowering plants. angiosperms exhibit a flowering stage in their life cycle. the flower serves the function of reproduction and fruit formation in majority of angiosperms. dicot is the term used to describe flowering plants that have two seed leaves. dicots are plants which develop seeds which split into two parts called cotyledons. each cotyledon contains one embryo.

here, a small purple flower development indicates that the plant belongs to angiosperms and having two embryonic leaves indicates it belongs to dicots.