The basic reproduction number (r0) is best interpreted as:
a. if r0 is greater than one eradication is possible
b. if r0 is negative the disease will eventually die out
c. if r0 is equal to one the disease will remain endemic
d. if r0 exceeds the birth rate the population is at risk of extinction

b. If R0 is negative the disease will eventually die out

Explanation:

R0 is calculated as the number of cases that one case generates on average during its infectious period, in an otherwise uninfected population. This value is very useful because it helps to determine whether or not an infectious disease can spread through a population.

typically, most spiders possess eight eyes. however, others have as many as 12, and some don't have any. these eyes are for detecting light from dark, deciphering shapes and for gathering their prey.

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.