This mini pepper is technically known as an internal proliferation, and is due to a natural process called parthenocarpy. Parthenocarpy is when any fruit develops without fertilization, and in the case of bell peppers, it results in these small internal tissue growths. Although it can have the same shape and look like a regular pepper, if you cut open this mini pepper, you'll find it's completely seedless.
Coriander and cumin aren't direct substitutes. Cumin is more pungent and earthy, so if used in place of coriander, I recommend using about half the amount and adding a touch of citrus zest or fennel seed to restore brightness.
To an unimaginable eye, a seed looks inert. Yet they are packed with genetic information and biological processes poised to unfold. All it takes is the right configuration of signals and stimuli from the environment to let them know it's time to dare to grow.
The U.S. Department of Agriculture published the Plant Hardiness Zone Map, which breaks the country into 13 zones that help determine the best time of year to get started on various fruits and vegetables, such as peppers. Each zone varies by 10 degrees, and each subzone varies by five degrees, even if a single state can technically be broken into several zones.
People grow asparagus from crowns because it shortens the long wait times for harvesting. From seed, you'll need to wait three years before harvesting asparagus. Some people consider that a waste of time. The tradeoff is that you can keep harvesting every spring for up to 15 years or more. If you plant crowns, you get a one-year jump on things. However, those crowns may have soil-borne diseases you don't know about, so there is a risk involved. Seeds remove that problem.