Answer:
In evolutionary studies, absolute dating can be described as a method which scientists use to date any material that they find. Relative dating is a method in which scientists try to puts the geological events in a relative order. In absolute dating, the exact age of the rock will be calculated by the scientist. In relative studies, the scientist will try to place the rock in the best geologic time in which the rock might have existed.
The most common method for absolute dating is the method of radiometric dating. Radioactive minerals present in the rock act as geologic time which are determined by the scientists.
Answer:
95%
Explanation:
The complete question is as follows:
The lethal tumor dose is defined as the dose that will eradicate what percentage of the tumor yet preserve normal tissue?
a) 85%
b) 95%
c) 65%
d) 75%
- Radiation dose is used as a therapy of cancer as the radiation leads to the breakage of the DNA and hence, renders the cell incapable of growth and division.
- Lethal tumor dose is defined as the dose of radiation that is required for the production of complete eradication of tumor.
- The dosage of the radiation depends on the sensitivity of the target tissues to radiation along with the size of the tumor.
- The lethal tumor dose is defined as the dose that will eradicate 95% of the tumor however it would still preserve the normal tissue.
Answer:
It consists of two major steps: transcription and translation.
Explanation:
Together, transcription and translation are known as gene expression. During the process of transcription, the information stored in a gene's DNA is transferred to a similar molecule called RNA (ribonucleic acid) in the cell nucleus.
I believe heterotrophs are organisms that get their energy by eating other organisms. These organisms are also called predators