Answer:
crossing over
Explanation:
Crossing over is where homologs can exchange DNA which leads to genetic variation
Answer:
Explanation:
The amount of biomass that is produced in an area during a given time is referred to as primary production/productivity.
<h3>What is biomass?</h3>
- Renewable organic material obtained from plant and animal sources if referred to as biomass.
- Primary productivity is the production of organic compounds through the process of photosynthesis, with the help of solar energy.
- Primary productivity is measured as biomass produced per unit area over a give time period
- It is usually expressed either in weight or energy.
- There are two ways to express primary productivity:
a) Gross Primary Productivity(GPP): Takes into account the total energy produced in the ecosystem.
b) Net primary Productivity(NPP): Takes into account, solely the energy used by the producer for respiration.
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Rachel Carson, one of the most world famous American Ecologist was among the first one who finds out about the Danger in Using Pesticides.
Not only that, she wrote several books about many environmental concerns that started people's general Awareness of Environmental problems, such as. The silent spring and The sea around us.
Explanation:
Antony van microscopist is best celebrated for locating bacterium and making over five hundred straightforward microscopes. He additionally discovered sperm cell cells, blood cells, protists and microscopic nematodes. He was created one amongst the primarily recorded observations of bacterium once he studied the plaque from his teeth and also the teeth of many others.
Ed Laurent could be an abstraction biologist United Nations agency develops and delivers cooperative, science-based recommendations and tools that modify the implementation and analysis of conservation activities.
Alexander Humboldt United Nations agency was 1st to explain ecological gradient of angular distance variety increase toward the tropics in 1807.
In unicellular organisms such as bacteria, mitosis helps in asexual reproduction as it produces an identical copy of the parent cell. ... In the case of multicellular organisms, mitosis helps in growth and repair by producing more number of identical cells.
