Give the technical term of the following
(a) Two leaves at each node
(b) Flowers cannot be divided into two equal halves
(c) Position of ovary is higher than other floral whorls
(d) carpels are fused

A flower which can be divided into equal vertical halves by more than one plane of division is a. Actinomorphic b. Zygomorphic c. hypogynous d. epigynous

Two charged conducting spheres of radii a and b are connected to each other by a wire. What is the ratio of electric fields at the surfaces of the two spheres? Use the result obtained to explain why charge density on the sharp and pointed ends of a conductor is higher than on its flatten portions.

Read each statement below carefully and state with reasons,if it is true or false: a)the magnitude of a vector is always a scalar. b)Each component of a vector is always a scalar. c)The total path length is always equal to the magnitude of the displacement vector of a particle. d)the average speed of a particle (defined as total path length divided by the time taken to cover the path) is either greater or equal to the magnitude of average velocity of the particle over the same interval of time. e)three vectors not lying in a plane can never add up to give a null vector.

Arrange the following points in a two column table and give suitable heading for each column. a) Notochord present b) Post ahal tail absent c) Pharynx Perforated by gill slits d) Notochord absent e) Posts anal tail present f) Gill slits are absent

Which compound has the higher boiling point in each of the following pairs? Substantiate your answers in regard to the difference in secondary force (attraction between molecules) in the two compounds, a. Heptane and Hexane b. Nonane and 3- methyl- octane c. Cyclopentane and pentane