Answer:
four types of nitrogen bases od DNA nucleotides are; Thymine, Adanine, guanine and cytosine
Hello!
The 4 major earth science fields are:
Geology: It Is the Study of the composition and internal structure of the planet. A Geologist would examine the earthquakes.
Oceanology: It is the Study of the seas and oceans, and everything related to it. An Oceanologist would examine the large waves to shore and the major flooding.
Meteorology: It is the study of the dynamics of the atmosphere of the Earth. A Meteorologist would study the cooler weather.
Astronomy: It is the study of the celestial bodies of the Universe. An astronomer would examine the meteor impact by itself.
Excited electrons are those which temporarily occupy a state higher than their ground state
The electron is excited if it is given extra energy, such as when a photon, or packet of light, absorbs it or if it collides with an atom.
This link should help you understand http://www.universetoday.com/20289/phases-of-the-moon/#
The term that describes the sheep in this scenario is prey, consumer and primary consumer.
A. Prey
B. Consumer
C. Primary consumers
<u>Explanation:</u>
It is given here that the sheep graze on the grass. Thus sheep is a consumer. When we get into the details of trophic levels in the ecosystem we can understand that autotrophs are the producers of an ecosystem. The organisms that feed on autotrophs are primary consumers.
Here grass is the producer and sheep is the primary consumer since it feeds on the grass. It is also given here that the ranchers have to keep the sheep away from predators. This makes the sheep a prey too. The animals that feed on primary consumers are called secondary consumers.
