27. the seed - grown plant is an example of asexual / sexual reproduction, and therefore will have a combination / zero of traits from its parents.

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# Brief Explanations:
1. First, recall the concepts of asexual and sexual reproduction:
   - Asexual reproduction produces offspring identical to the parent (e.g., budding, fragmentation, vegetative propagation), with no combination of traits from parents (traits are identical to the single parent).
   - Sexual reproduction involves the fusion of gametes (e.g., in plants, seeds are produced after pollination and fertilization, where gametes from two parents fuse). So, seed - grown plants come from sexual reproduction? Wait, no—wait, actually, some plants can reproduce asexually via seeds (apomixis), but typically, seed production in most plants (like flowering plants) involves sexual reproduction (fusion of male and female gametes). But wait, the second part: "combination/zero" of traits. In sexual reproduction, offspring have a combination of traits from both parents. In asexual reproduction, offspring have traits identical to the single parent (zero new combination from two parents, but traits from one parent). Wait, the question's first blank: seed - grown plant—if it's sexual reproduction, then the second blank is "combination". If it's asexual, then "zero". But actually, in most cases, seed - production (except apomixis) is sexual. But wait, maybe the question is considering that a seed - grown plant from asexual seed production (apomixis) is asexual, but that's less common. Wait, no—let's re - think. The key is the second part: "combination/zero" of traits from parents. In sexual reproduction, offspring get a combination of traits from two parents. In asexual, offspring have traits from one parent (so zero combination from two parents, but traits from one). Wait, the question says "from its parents" (plural). So if it's sexual, parents are two, so combination. If asexual, parent is one, so zero combination from two parents. Now, seed - grown plants: in typical sexual reproduction (e.g., in angiosperms), seeds are formed by the fusion of sperm (from pollen, male parent) and egg (female parent), so that's sexual reproduction, and the offspring (seedling) has a combination of traits from both parents. But wait, maybe the question has a mistake, or maybe it's considering that a seed - grown plant from asexual reproduction (like apomictic seeds) is asexual, but that's a special case. However, the more common understanding for basic biology (especially in middle - school or high - school level) is that seed production (via pollination and fertilization) is sexual reproduction, and thus the offspring has a combination of traits from parents. Wait, but let's check the options. The first blank: [asexual/sexual], second: [combination/zero]. So if it's sexual reproduction, then first blank is "sexual", second is "combination". If asexual, first is "asexual", second is "zero". But let's recall: in asexual reproduction, offspring is identical to the parent (one parent), so no combination from two parents (zero combination from two parents, but traits from one). In sexual, two parents, combination. So the correct answers should be: first blank "sexual", second blank "combination"? Wait, no—wait, maybe I got it wrong. Wait, the first part: "The seed - grown plant is an example of [asexual/sexual] reproduction". Wait, actually, some plants can reproduce asexually by producing seeds (apomixis), but that's not the norm. But maybe the question is considering that a seed - grown plant (from a seed) is sexual, because seeds are produced by the fusion of gametes (sexual reproduction), and thus the offspring has a combination of traits from parents. So the first blank: sexual, second blank: combination.
# Answer:
First blank: sexual; Second blank: combination

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