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Home2019September

Month: September 2019

Research

Nearly 3 Billion Fewer Birds Exist Today In North America Than In 1970

24th September 2019 spadmanabh009 0

A recent study published in the journal Science reported that nearly 3 billion fewer birds exist today in North America than in 1970. Journal: Rosenberg et al. Decline of the North American avifauna. 2019. Science

The Lifescientist

NEET Question

Intercostal muscles are found in

All mammals have hair but these are absent in order

The reason why vegetatively reproducing crop plants are best suited for maintaining hybrid vigour is that:

A patient is generally advised to specially, consume more meat, lentils, milk, and eggs in the diet only when he suffers from

Secretin and cholecystokinin are digestive hormones. They are secreted in

Parkinson’s disease (characterized by tremors and progressive rigidity of limbs) is caused by degeneration of brain neurons that are involved in movement control and make use of neurotransmitter:

Which of the following unicellular organism has a macro- nucleus for trophic function and one micronucleus for reproduction?

Epithelial cells of the intestine involved in food absorption have on their surface

Pneumatic bones are found in

A single strand of nucleic acid tagged with a radioactive molecule is called

The main organelle involved in modification and routing of newly synthesized proteins to their destination is

Which of the following is characters is not typical of the class Mammalia?

Phospholipids are esters of glycerol with

The radioisotope, tritium (1H3) has a half-life of 12.3 years. If the initial amount of tritium is 32 mg, how many milligrams of it would remain after 49.2 years?

Functional megaspore in an angiosperm develops into

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