The nucleus is a spherical object, and it controls cell activity.
Answer:
A molecule of DNA is made up of two strands which are joined by the hydrogen bonds present in the nucleotide bases. The sugar and phosphate make up the backbone of the DNA. The sequence of the nucleotide bases determines the traits that an organism will carry. Genes are hereditary molecules which are made up of sections of DNA. Together, they make up the entire genome for the organism. Each gene is located on a specific place inside the chromosomes. The chromosomes are the element of reproduction as they undergo the process of meiosis and duplicate themselves.
<span>The pressure in a plant cell by the central vacuole being filled with water is called pressure</span>
Answer:
The gametophyte is smaller than and dependent on the larger sporophyte. : Seed bearing vascular plants
The gametophyte is independent and larger than the sporophyte. : Non vascular plants
The gametophyte is smaller than the sporophyte and can live independently of the sporophyte.: Seedless vascular plants
Explanation:
Seed bearing vascular plants are gymnosperms and angiosperms. These plants have dominant sporophyte that is independent of gametophyte and is capable of individual existence. Gametophyte generation in these plants is reduced and dependent on sporophyte. For example, the male gametophyte of angiosperms is pollen grain.
On the other hand, the non-vascular plants such as bryophytes and mosses have large and independent gametophyte on which the sporophyte depends for its survival. Pteridophytes are the seedless vascular plants and have separate gametophyte and sporophyte generations that are capable of independent survival.
This is an example of inter specific competition. Blue birds and blue jay are living in the same small wooded area. Both of the birds lives in their, however only the stronger one will remain. And since the blue jays are very aggressive, it eventually take over the nests of the blue birds.
