Cockroach heart, How last chamber of heart in cockroach receives blood with...

How last chamber of heart in cockroach receives blood without having ostia?

Sex determination - reproduction, Sex Determination - Reproduction Se...

Sex Determination - Reproduction Sex, whether an individual will be a male or a female is determined at fertilisation, and this directs and controls all the later processes i

Which substance starts clotting in humans after a wound, When a wound occur...

When a wound occurs in humans, platelets in the blood activate a substance that starts clotting process. The substance which starts clotting is: a) Adenosine (pron: ah-den-ah-s

Which type of defense cell do viral infections, Q. Of which type of defense...

Q. Of which type of defense cell do viral infections stimulate the multiplication? The main leukocytes that generally participate and multiply in the defense against viral infe

Explain radiation sterilization, Explain radiation sterilization Variou...

Explain radiation sterilization Various studies have been conducted which show the effect of processing on vitamins especially, thiamine. In one study, which compared the effec

Obelia economic importance,

Habitat for the worlds species, Q. Habitat for the worlds species? Natu...

Q. Habitat for the worlds species? Natural ecosystems provide habitat for the world's species. Forests, coral reefs and deep ocean bottoms house many species. Wetlands, through

What is the process of evolution, Why acquired traits are not directly rela...

Why acquired traits are not directly related to the process of evolution? As acquired traits are not genetically determined, they cannot be passed on to offspring. Therefore,

Electrophoresis, the model

the model

Into which classes is the phylum annelida divided, Q. Into which classes is...

Q. Into which classes is the phylum Annelida divided? The phylum is divided into three classes: hirudineans (e.g., leeches), oligochaetes (for example, earthworms) and polychae