It depends on the conditions. A plant which is both eaten and has feces deposited will do better than one not subjected to herbivores, but one which is only eaten will do worse, and the one that does best is subjected only to the positive effects. In other words, the statement cannot be made without references to what effects are included. They then produce a narrow structure called a penetration peg which penetrates the cuticle by releasing enzymes that destroy the cutin, pectin and cellulose in cell walls, and through mechanical pressure 24. Explain why pollination and fertilization are not interchangeable terms.
Pollination refers to the deposition of pollen onto the stigma.
This does not have to be compatible pollen, it can be heterospecific pollen or incompatible self-pollen. Fertilization refers to the union of the sperm and eggs cells, for which pollination is a prerequisite but not sufficient condition. Seed production can be limited by two types of resources. Explain what they are and under what conditions you would expect each of them to operate. Flowers low on the plant open before flowers higher up, and bees fly from the botton to the top of the inflorescence.