Question

2. Which of the statements is incorrect?
a. The filiform apparatus blocks the entry of pollen and sperm
cells
b. The secondary nuclei form a polar nucleus prior to fertilization
c. Androecium is a part of the carpel
d. All of the above
e. None of the above
​

Answer 1

Answer:

A planet is an astronomical body orbiting a star or stellar remnant that is massive enough to be rounded by its own gravity, is not massive enough to cause thermonuclear fusion, and – according to the International Astronomical Union but not all planetary scientists – has cleared its neighbouring region of planetesimals.[b

Answer 2

Explanation:

Critical temperature of the substance is the temperature at a substance's critical point.

Above Tc we cannot liquify gas keep pressure constant although on ↑pressure we can liquify.