Answer:
DNA replication is called semiconservative because the two resulting DNA molecules each have one new DNA strand and one old strand from the original DNA molecule.
Explanation:
Answer:
The main difference between prokaryotic and eukaryotic cell is D. Eukaryotic cells have a more complex cellullar organization.
Explanation:
The eukaryotic cells are different from prokaryotic because both have fundamental anatomical and biochemical distinctions. This distinctions are not a question of size or shape.
Some of the basic differences are:
Eukaryotic cells have a membrane enveloped nucleus and internal organelles as mithocondrial, lysosomal and golgi apparatus. Only these cells have chromatin structure.
Fungi exhibit certain characteristics, one of which is that they are achlorophyllous, that is they do not have chlorophyll , which is necessary for photosynthesis. Thus due to this, fungi cannot perform photosynthesis and therefore cannot make their own food but rely on readymade food matter.
They mostly feed on dead organic matter the process of absorption. Some fungi release enzymes that help break down dead organics matter into chemicals that the fungi can absorb as food. Other fungi obtain food directly from living beings, which means they are parasitic.
The process of organisms fighting for mates food and living space is called competition.
Explanation:
Ecological interactions of organisms include adaptations, interdependence with each other and competition.
Although there is an abundance of natural resources for food and space, due to ever increasing demands and evolutionary and environmental changes, organisms constantly compete with each other for resources like food and space.
Organisms fight or compete with each other for food, shelter, mate, sunlight etc.
The autotrophs need to compete with each other for resources needed for photosynthesis like water, carbon dioxide, and other nutrients and minerals present in the soil. Similarly other consumers compete with each other for food. This competition may be interspecific (between two or many species) or intraspecific (within the same species).
Biodiversity helps to balance the ecological systems and avoid this competition between organisms.