<span>Hornworts are needle-like sporophytes that are a part of the group of bryophytes or non-vascular plants. They have horn-like or needle-like structures that have a flattened green plant body. These hornworts may be found all over the world but can only grow in places that are damp and humid. Some of its other species grow in large numbers as tiny weeds in garden soils and cultivated fields. While others in the tropical and subtropical areas grow on barks of trees.<span>
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Answer:
A germline mutation, or germinal mutation, is any detectable variation within germ cells (cells that, when fully developed, become sperm and ovum). Mutations in these cells are the only mutations that can be passed on to offspring, when either a mutated sperm or oocyte come together to form a zygote.
Explanation:
A stem<span> is one of two main </span>structural<span> axes of a vascular plant, the other being the root. The </span>stem<span> is normally divided into nodes and internodes: The nodes hold one or more leaves, as well as buds which can grow into branches (with leaves, conifer cones, or inflorescences (flowers)).</span>