The environment is studied at different levels & stages.
Biosphere: The biosphere is the zone in which life exists. It consists of the atmosphere& the hydrosphere alongwith the earth surface where living beings live.
The biome is a community of plants and animals (flaura & fauna).
Community: A community is a group of people/living beings who live in a specific location. It is used to describe two or more populations of different species that exist at same place.
Population: A population is the multiple individuals or living organisms of a single species that live in an area.
The populations are formed by lalrge number of groups of organisms.
Group of populations form communities. The group of all communities form a biome, which exist in the biosphere.
The diagram shows:
First, the yellow fever virus is phagocytosed by white blood cells. The phagocytosed white blood cell then travel through the lymph vessel. Since lymph node contain white blood and filter lymph, the yellow fever phagocytosed with white blood cell establish in the lymph node.
Because the flu would get other people sick
Answer: Genetic engineering is a tool in biotechnology wgich is beneficial to both the organism, the society and the environment.
What is genetic engineering?
Genetic engineering is a technique in biotechnology in which genes of organisms are manipulated to produce desirable effects in the organism.
Genetic engineering provided benefit to both the organism as well as the society.
To the organism, it gives the organism an advantage of increased chances for survival, for example producing disease-resistant crops.
To the society, it enhances food production as plants produce more food when healthy.
To the environment, it enables these disease to disappear as they can no longer affect organisms.
Explanation:
The answer is B. Cross-pollination occurs when pollen fertilizes female egg cells on the same flower.