Answer:
a) The quality or fact of being sonorous.
b) A vaccine is a biological preparation that provides active acquired immunity to a particular infectious disease. A vaccine typically contains an agent that resembles a disease-causing microorganism and is often made from weakened or killed forms of the microbe, its toxins, or one of its surface proteins.
c) The supply of water to land or crops to help growth, typically by means of channels.
d) A substance which has a molecular structure built up chiefly or completely from a large number of similar units bonded together, e.g. many synthetic organic materials used as plastics and resins.
A Petri dish (alternatively known as a Petri plate or cell-culture dish) is a shallow transparent lidded dish that biologists use to culture cells, such as bacteria, fungi or small mosses. The container is named after its inventor, German bacteriologist Julius Richard Petri. It is the most common type of culture plate.
Answer:
- Modern camels are more related to Camelops than to Aepycamelus.
- Pliauchenia and Oxydactylus may share similar feautres.
- Procamelus and Stenomylous may share similar features.
Explanation:
The chart given explains how the camels are evolved between Eocene (33 myo) and Pleistocene.
- According to the chart, modern-day camels (Camelus) are a closer phylogenetic relative of Camelops because they are clustered together in the Pleistocene age section. However, Aepycamelus is last recorded in the Upper Miocene and later became extinct (or no record is found in Pliocene and Pleistocene).
- Pliauchenia and Oxydactylus have a single ancestor "Protylopus" which can be seen in the Eocene age. Although Protylopus were branched to two species in upper Miocene, it is not difficult to believe that they share many genetic similarities (features) in both lineages.
- Similarly, Procamelus and Stenomylous are the descendants of Poebrotherium and got apart at the end of the Oligocene, therefore, they will also share several features similar to each other.
answer is D ( totipotent cells can differentiate into more types of cells )
Answer with Explanation:
Hydrogen peroxide is considered<em> "unstable,"</em> thus, storing it in the refrigerator provides two advantages:
1. It slows down thermal decomposition.
- The rate of decomposition slows down when the temperature is lowered. It increases when the temperature rises.
2. It prevents photolytic decomposition.
- Photolytic decomposition happens when hydrogen peroxide is exposed to sunlight or bright light. It therefore increases the rate of reaction. Therefore, hydrogen peroxide should be stored in a <em>cool and dark place</em>, such as the refrigerator.
