Ask Question
BiologyBiology
5 April, 08:44

Which unit of geologic time is the oldest? Cenozoic Mesozoic Ordovician Precambrian

+3
Answers (2)
  1. 5 April, 10:04
    0
    D. Precambrian
  2. 5 April, 11:31
    0
    The oldest unit of geologic time is Precambrian.

    Explanation:

    The period of Precambrian prolonged from 540 to 490 millions of years ago. Likewise for Ordovician, 490 to 443 million year ago, whereas for Mesozoic period extends from 248 to 65 million year ago. At last, Cenozoic time lies between 65 million to 10,000 years ago.

    The organisms in each period are as follows,

    Precambrian time - Sponges, Trilobites. Ordovician - Jawless fishes, Gastropods, etc. Mesozoic period - Early mammals, Bony fishes. Cenozoic period - Human beings, Mammoths, etc.
Know the Answer?
Not Sure About the Answer?
Get an answer to your question ✅ “Which unit of geologic time is the oldest? Cenozoic Mesozoic Ordovician Precambrian ...” in 📙 Biology if there is no answer or all answers are wrong, use a search bar and try to find the answer among similar questions.
Search for Other Answers
You Might be Interested in
Which best describes ideal growing conditions for fungi? a. moist and warm b. hot and dry c. cool and damp d. wet and cold
Answers (2)
What conclusion is best supported by the date in graph
Answers (1)
Which of these characteristics differentiates electrons from protons and neutrons? a. They do not move. b. Electrons are larger. c. Electrons are not in a fixed position. d. They are located in the nucleus.
Answers (1)
What is meant by the term epistasis? Distinguish between epistasis and dominance. Do not use examples in answering this question.
Answers (1)
Write a paragraph summarizing what happens to solar energy in earths energy budget
Answers (1)
New Questions in Biology
Which of the following would most likely employ a forester? A. a state governments B. lumber businesses C. national govemments D. all of the above
Answers (2)
How do environmental scientists use technology to track polar bears?
Answers (2)
A rock formed from liquid magma at temperatures above 1000 degrees Celsius and the. Cooked and hardened what type of rock is it
Answers (2)
You sample a population of butterflies and find that 56% are heterozygous at a particular locus. What should be the frequency of the recessive allele in this population? A. 0.07 B. 0.08 C. 0.09 D. 0.70
Answers (1)
If there is a mutation in a zygote, where is it likely to be found in the fetus? A: The mutation will show up in any fetal cells formed by mitosis but not in those formed by meiosis.
Answers (2)
Home » Biology » Which unit of geologic time is the oldest? Cenozoic Mesozoic Ordovician Precambrian
Sign Up Forgot Password?