Practice free Zoology NEET multiple-choice questions online with instant answers and detailed explanations. No login required.
Fertilisation in Echinodermata is typically:
The text states, 'Fertilisation is usually external' for Echinodermata.
The level of organisation observed in Echinodermata is:
The NCERT mentions that Echinoderms are 'All are marine with organ-system level of organisation'.
Which class of animals does not belong to Phylum Echinodermata?
Asteroidea, Echinoidea, and Crinoidea are classes within Echinodermata. Cephalopoda is a class within Phylum Mollusca, as seen in the example 'Octopus (Devil fish)' under Mollusca.
The spiny skin characteristic of Echinoderms is due to their:
The name Echinodermata means 'Spiny bodied' and refers to their endoskeleton of calcareous ossicles which often bear spines, giving them a spiny appearance. The summary also states, 'The echinoderms possess a spiny skin.'
Sexes for Echinodermata are described as:
The NCERT text specifies, 'Sexes are separate' for Echinodermata.
Which of the following bodies is responsible for making decisions regarding the validity of GM research and the safety of introducing GM-organisms for public services in India?
According to the NCERT text, 'Therefore, the Indian Government has set up organisations such as GEAC (Genetic Engineering Approval Committee), which will make decisions regarding the validity of GM research and the safety of introducing GM-organisms for public services.'
What is the primary concern mentioned in the NCERT text regarding the introduction of genetically modified organisms into the ecosystem?
The NCERT text states, 'Genetic modification of organisms can have unpredict able results when such organisms are introduced into the ecosystem.'
The public anger surrounding patents granted for biological resources is primarily due to:
The NCERT text highlights this issue: 'There is growing public anger that certain companies are being granted patents for products and technologies that make use of the genetic materials, plants and other biological resources that have long been identified, developed and used by farmers and indigenous people of a specific region/country.'
Ethical standards are required in biotechnology to evaluate the morality of all human activities that might:
The NCERT text mentions, 'Some ethical standards are required to evaluate the morality of all human activities that might help or harm living organisms.'
Which of the following is NOT listed as a potential ethical concern or issue related to biotechnology in the provided text?
The text discusses unpredictable results, patent anger, and the morality of manipulation. The rapid pace of technological development, while true, is not specifically mentioned as an ethical issue concerning biotechnology within the provided context.
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