What do you call a pathogen that does not contain any nucleic acid, only proteins are present?

Evolution is the changes over a period of time. One of the pieces of evidence is the fossil. But how is the age of the fossil determined?

Study of age of the Earth:

What structure pertain to having same origin but different functions?

What structures no longer have a purpose in the current form of an organism of the given species but has some important functions before in the organism?

Natural selection can alter the variation in a population. What happens when the ecosystem favors the intermediate phenotypes?

Natural selection operates on a "better than" basis. Which one may be the reason for this?

What is lower than domain taxa?

In 1990, Wose created a domain classification. Which is not part of it?

Among the domains below, which domain is called the extremophiles?

The shape of vibrio cholera:

Who created the book "Origin of Species" by means of natural selection?

What kingdom is found on the kingdom system created by Whittaker but absent in the kingdom system made by Woese?

What is the main component of the cell wall of gram-positive bacteria?

What is use of microorganisms to remove pollutants from soil, water. or air?

What vascular tissue of plants transporting water and minerals into the different parts of its body?

Liverworts, hornworts, mosses. these plants belong on what group?

Mango, pineapple, and tomatoes. These plants belong on what group?

Pollination is the transfer of pollen from the male reproductive organ of the plant to the female reproductive organ of a plant. How the pollens may still effectively be transferred without considering the color of the petals or the scent that may be released by the flowers?

Among these animals, which one can undergo molting?

Which animal having cartilaginous skeleton?

Which among the following represents the smallest unit of life?

What human organ system produces red blood cell?

What organ produces bile in our body?

The union of egg cell and sperm cell in a test tube:

Which of the following shows mechanical weathering of rocks?

PAGASA announces the approach of the seasonal winds. The familiar names used are Amihan and Habagat, internationally knows as _____ and _______ respectively.

What is the bond with loss and gain of electrons?

What model that relates to the correct idea about the Solar System?

What is correct to revolution and rotation respectively?

What heat transfer is exhibited when the metal pan and its metal handle were both turned hot?

Which among these compounds is not an organic compound?

Light is slowest in what medium?

Diffusion is a passive transport that does not use any energy. Through the help of the random movement of the molecules, they gradually spread to the gradient

Which electromagnetic spectrum has the longest wavelength?

Which group has the most stable elements?

In Indian Ocean, storm is called?

Rocks that undergo high pressure and high temperature?

Tyndall effect is evident in:

Hydrogen can be both positive and negative. Therefore, it is a/an:

Law of Motion state that things have equal and opposite reaction.

Property of things to resist changes in motion:

Which is not used in International System of Units?

What is the atmospheric layer where most weather occurs?

When we talk about star's brightness, we refer to:

A light-year is a measure of what?

What slow down the motion of an object or keeps it from starting?

When the pressure is constant, the volume of gas is directly proportional to the temperature.

When the temperature is constant, the pressure is inversely proportional to the volume: