<span>As the pollen tube penetrates the ovule, it releases two sperm cells. As in gymnosperms, the ovule becomes a seed, encasing the embryo and endosperm in a seed coat. But unlike gymnosperms, in angiosperms the ovary containing the ovules develops into a fruit after fertilization.</span>
The notable
hardness of bone is attributed to the presence of inorganic hydroxyapatites.
Due to the calcium salts deposited in it, resulting to the hardness. The
abnormal hardness of bone, which allows it
to resist the compression.
Answer:
interaction between two different organisms living in close physical association, typically to the advantage of both.Compare with antibiosis.
a mutually beneficial relationship between different people or groups.
Explanation:
Answer:
<em>Genes are one dimensional.</em>
Explanation:
The genes are made up of segments of DNA. The DNA has a three dimensional structure as coiling and super-coiling occurs in it to give it a three dimensional structure. But genes itself are one- dimensional. Genes are the hereditary molecules.
The genes makes particular proteins. Proteins also have three dimensional structure as they undergo coiling and super-coiling.
