PART - 1 - Unit I : CH - 2 Biological Classification — BIOLOGY STD 11 Science — Question

Which of the following endocrine glands functions under nervous control?

Sycon belongs to a group of animals, which are best described as

Which of the following has both the male and female cones on same plant body?

The most abundant prokaryotes helpful to humans in making curd from milk and in production of antibiotics are the ones categorised as

The forearm is formed by the fusion of how many bones?

Plants are known as purifiers of air due to process of

In male frog, vasa efferentia enter the kidney and open into

Crossing over that results in genetic recombination in higher organisms occur between.

Select the option which shows correct matching of animal with its excretory organ and excretory product.

You are given a fairly old piece of dicot stem and a dicot root. Which of the following anatomical structures will you use to distinguish between the two ?