How do yeast, sponges and hydra reproduce asexually?

Mention two characteristics of actinoids and also discuss the oxidation states of actinoids?

Mention any two characteristics of ammonia as a nitrogenous metabolic waste .Which of the following animals is / are ammonotelic:Camel,Whale ,Shark and frog?

Mention two characteristic properties of the material suitable for making core of a transformer.

Mention the two characteristic properties of the material suitable for making core of a transformer.

Endoparasites are found inside the host body. Mention the special structure, possessed by these and which enables them to survive in those conditions.

Two opposite forces operate in growth and development of a population. One of them relates to ability to reproduce at a given rate. The force opposite to it, is called:

An amoeba on fission produces two amoeba. What type of asexual reproduction is this?

Consider the following situation. A problem, dating back to the early 13th century, posed by Leonardo Fibonacci asks how many rabbits you would have if you started with just two and let them reproduce. Assume that a pair of rabbits produces a pair of offspring each month and that each pair of rabbits produces their first offspring at the age of 2 months. Month by month the number of pairs of rabbits is given by the sum of the rabbits in the two proceeding months, except for the 0th and the Ist months. After just 16 months, you have nearly 1600 pairs of rabbits !

A girl had designed a clap switch for a science exhibition that enabled her to switch on or off an alarm just with clapping of hands. While testing her device in a hall, she noticed that once the alarm has sounded it followed with another one due to echo of the clap, that is, the sound reflected by the walls. She recorded the two soundings of alarm with her tape recorder and found out that time difference in between them is 0.1 s. If the distance of the walls be 15 m, calculate the speed of sound.