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Posted by Mohit Sepat 7 years ago
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Priyanka Singh 6 years, 11 months ago
Posted by Mohit Sepat 7 years ago
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Yogita Ingle 7 years ago
The primary productivity has two aspects as discussed below:
Gross Primary Productivity (GPP) : It is the rate of production of organic matter during photosynthesis. A considerable amount of GPP is utilised by plants in respiration. .
Net Primary Productivity (NPP): It is the available biomass for the consumption by heterotrophs (herbivores and decomposers). It is actually the amount of energy left in the producers after utilisation of some energy during respiration. Thus, Gross Primary Productivity minus the Respiration Losses gives the Net Primary Productivity.
GPP - R = NPP
where, R = Respiration losses.
Posted by Mohit Sepat 7 years ago
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Priyanka Singh 6 years, 11 months ago
Posted by Mohit Sepat 7 years ago
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Priyanka Singh 6 years, 11 months ago
Posted by Ajay Raj 7 years ago
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Posted by Ritwik Talukdar 7 years ago
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Yogita Ingle 7 years ago
Spermiogenesis-
- The spermatids are transformed into sperms, also called as spermatozoa by the process called spermiogenesis.
- After spermiogenesis, sperm heads become embedded in the Sertoli cells and are released from the seminiferous tubules by the process called spermiation
Posted by Manish Kumar 7 years ago
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Tikishree Menaka Murmu 7 years ago
Posted by Shivani .. 7 years ago
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Yogita Ingle 7 years ago
Multifactorial inheritance means that many factors (multifactorial) are involved in causing a birth defect. The factors are usually both genetic and environmental where a combination of genes from both parents, in addition to unknown environmental factors, produce the trait or condition.
Posted by Pushpanjali Kumari 7 years ago
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Harish Chhillar 7 years ago
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Surabhi Tiwari 7 years ago
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Sanu Singh 7 years ago
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Posted by Radhey Patel 7 years ago
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Yogita Ingle 7 years ago
BOD refers to the amount of oxygen that would be consumed if all the organic matter in one litre of water were oxidised by bacteria. The microbes biodegrade the major part of the organic matter in the effluent by using the dissolved oxygen. It reduces the BOD of the effluent. When the BOD of sewage is reduced significantly the effluent is passed into a settling tank where the bacterial floes are allowed to sediment forming the activated sludge. Thus, higher the value of BOD, more is the water polluted and more is the amount of biodegradable matter.
Posted by Ritik Kataria 7 years ago
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Arushi Dogra 7 years ago
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Krishna Garg 7 years ago
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Arushi Dogra 7 years ago
Tikishree Menaka Murmu 7 years ago
Posted by Kanhaiya Singh 7 years ago
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Posted by Anurag Malik 7 years ago
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Yogita Ingle 7 years ago
The corpus luteum is a temporary endocrine structure in female ovaries that is involved in the production of relatively high levels of progesterone and moderate levels of estradiol and inhibin A.its function The corpus luteum is essential for establishing and maintaining pregnancy in females. The corpus luteum secretes progesterone, which is a steroid hormone responsible for the decidualization of the endometrium (its development) and maintenance, respectively.
Posted by Shaima Ameen 7 years ago
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Yogita Ingle 7 years ago
Alpha diversity refers to the average species diversity in a habitat or specific area. Alpha diversity is a local measure.
Beta diversity refers to the ratio between local or alpha diversity and regional diversity. This is the diversity of species between two habitats or regions. It is calculated by the following equation:
Gamma diversity is the total diversity of a landscape and is a combination of both alpha and beta diversity.
Posted by Amreen Fatma 7 years ago
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Yogita Ingle 7 years ago
Backcross is a cross of a hybrid (F1) with any one of its parents, in order to achieve offspring with a genetic identity which is closer to that of the parent. It is used in horticulture, animal breeding and in production of gene knockout organisms.
Test cross is a cross between an organism whose genotype for a certain trait is unknown and an organism that is homozygous recessive for that trait so the unknown genotype can be determined from that of the offspring. This cross is used to determine whether the individual in question is heterozygous or homozygous for a certain allele. It can also used as a method to test for linkage, i.e. to estimate recombination fraction.
Posted by Radhey Patel 7 years ago
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Posted by Vareesha Rais 7 years ago
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Surabhi Tiwari 7 years ago
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