Internal fertilization is the process when the syngamy (union of male and female gamete) occurs inside the female body after insemination using copulation. In contrast, External fertilization is the syngamy outside the female body, that is in the outer environment especially in water bodies.
Answer:
True.
Explanation:
Replication is the process by which a double-stranded DNA molecule is copied to produce two identical DNA molecules. To accomplish this, each strand of existing DNA acts as a template for replication.
When the effects of genes add up to make the phenotype, they are called additive genes.
Answer:
Water shed is created when an area or land separates the water flowing to different rivers, basin and seas.
Explanation:
Water shed are of different types-
- Large water sheds-Contain well developed channel networks.
- Small water sheds-Contain dominant land phase.
- Urban watershed-It is dominated by building,roads,pavements.
- Agriculture water shed-
- Forest water shed-Evapotranspiration is the dominant component of the hydrologic cycle.
- Mountain water shed-mountain is the dominant component that separates the water flow.
- Desert water shed-Sand dunes sand mounds that are formed by blowing air causes separation of water flow.
- Coastal watershed-Coastal area may partly be urban and is dynamic contact with sea.The hydrology is influenced by tidal action.
