Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Q. Evolutionarily protochordates may be intermediate animals between invertebrates and vertebrates. Imagine a scientist is testing the hypothesis that vertebrates evolved from echinoderms. Having as research object a newly found protochordate species, what is an example of a discovery that would weaken the hypothesis? What is an example of a discovery that would strengthen it?
Hypothesis to be tested: Vertebrates evolved from echinoderms, testing material: A newly found protochordate species (that is a vertebrate forerunner).
Example of weakening observation (that puts the new protochordate species evolutionarily far from echinoderms): "The new species is protostome", as opposed to echinoderms, that are deuterostomes. This observation brings the suspicion that deuterostomy in vertebrates is independent in origin from echinoderms.
Example of strengthening observation (that nears the new protochordate species to echinoderms) "The new species has secondary radial symmetry", similar to echinoderms. This observation makes stronger the hypothesis that vertebrates and echinoderms are relatives this item shows how science works, beginning with the placement of hypothesis and further observational testing.
Ammonia Assimilation - Inorganic Nitrogen and Sulphur Metabolism Nitrogen (N 2 ) gas and NO 3 are the most common available forms of inorganic nitrogen. Both are enzymaticall
Explain the Skeletal System? Skeletal System: The support framework, or skeleton, in the human body is composed of mostly hard mineral substances. Unlike crustaceans or insec
Fredrick Griffith published a series of experiments that collectively were dubbed "The Transforming Principle" in 1928. Which of the following prevented him from being able to decl
Describe PS with VSD in Tetralogy of Fallot's ? This group is also known as Tetralogy of Fallot's physiology. The classic example is Fallot's tetralogy characterized by: (1) Se
Explain fats requirements during thyphoid Fats: Use of fats should be in moderation. This is because the typhoid patient has a compromised ability to digest and assimilate due
Define about the nutritional deficiencies? The nutritional deficiencies which have been identified in the group of elderly are of total calories, protein, vitamin A, vitamin C,
Q. Is the cell division happening during the entire cell cycle? What is the interphase? Cell division properly occurs throughout the mitotic phase of the cell cycle. During int
Catecholamines increase activation of Ca 2+ via beta-adrenergic receptors and the adenyl cyclase system. Dopamine has both alpha and beta and dopaminergic effects. Its beta ef
Admission to the Hospital The philosophy of childcare, whether in the home, hospital, or other community agency, should be consistently one of concern and support for the
what is the mode of nutrition of ascaris
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +91-977-207-8620
Phone: +91-977-207-8620
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd