1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
aliina [53]
2 years ago
15

Think about how the geologic time scale was created and how it is divided. Then answer the following questions.

Biology
1 answer:
IceJOKER [234]2 years ago
8 0

Answer:

1. Scientists form the geological time scale by describing the order and time when major earth events occurred for the last 4.5 billion years ago. The scale describes the first time plants appeared on earth, the first time animals where spotted on Earth, the processes that formed mountains and the extinction of special species such as the dinosaurs. Geologist study the earth to identify the history of geological events contained in the rock layers of the Earth. Old layers of the Earth are buried deep inside the surface where as the young layers are at the top. With this understanding, geologists are able to comprehend the ages of rocks relative to one another.

2. The Geologic time scale is organized into intervals namely Eons, Eras, Periods, and Ages. The Eons is the largest interval where each eon presents many millions of years. The Eons are divided into Eras which start and end with significant changes in the living organisms on the Earth surface. In each Era, there are multiple periods which are further subdivided into multiple short epochs.

3. The processes that changed Earth’s surface during Precambrian time was changes in climatic condition that caused by creation of the planet and later the emergence of complex and multi-cellular organisms. The Precambrian time was characterized by layers of sedimentary rocks that formed million years ago and contain information of Earth’s past which include fossils remains of living organisms that were buried during formation of sediments.

Explanation:

explained in the answer

You might be interested in
Why are there usually several types of pigments present in cloroplast
Vanyuwa [196]

Answer:

Because the pigments interact with different light to absorb different light wavelengths.

5 0
3 years ago
Drosophila eye color is an X-linked trait. Red eye color is dominant, and white eye color is recessive. Which Punnett square sho
Aleks [24]
A punnet square is a diagram that is used to predict an outcome of a particular cross or breeding experiment. The diagram is used by biologist to determine the probability of an offspring having particular genotype. Base on that the possible answer would be that the<span> two parents should have genotype a of something like XXi x XY where Xi is the allele for red eye colour</span>
4 0
3 years ago
Read 2 more answers
In the human body lysozyme is an enzyme that helps protect the body
krok68 [10]

Answer:

Proteins

Explanation:

5 0
3 years ago
The modern seed plant phyla of ginkgos, cycads, conifers, and gnetophytes are collectively known as?
natima [27]

The modern seed plant phyla of ginkgos, cycads, conifers, and gnetophytes are collectively known as gymnosperms.

Phylum is a taxonomic rank below state and above magnificence in the organic class, particularly of animals. In plant life, the corresponding rank is department. instance: Phylum Chordata consists of magnificence Mammalia (mammals), magnificence Aves (birds), magnificence Ascidiacea (sea squirts), and so forth.

At its maximum simplicity, a phylum may be described in ways: as a collection of organisms with a positive degree of morphological or developmental similarity (the phenetic definition), or a collection of organisms with a certain diploma of evolutionary relatedness (the phylogenetic definition).

The phrase become later modified to phylum. There are approximately 35 animal phyla, 12 plant phyla, and seven phyla of fungi. The microorganism, including the archaea, are grouped into roughly 34 phyla, despite the fact that the relationships between these organizations aren't as nicely hooked up.

Learn more about phyla here: brainly.com/question/1140420

#SPJ4

3 0
1 year ago
if a gene has completely dominat allele and two recessive alleles how ñmany difcerent traits can these allele produce
sasho [114]

Dominance is not inherent to either an allele or its phenotype. It is a relationship between two alleles of a gene and their associated phenotypes; one allele can be dominant over a second allele, recessive to a third allele, and codominant to a fourth.

3 0
3 years ago
Other questions:
  • A 14-month-old toddler is able to recognize the shapes of objects and fit smaller boxes into larger boxes. which type of cogniti
    10·1 answer
  • Nitrogen and phosphorus are two nutrients that can limit ________________________ in an ecosystem. diversity potential productiv
    11·1 answer
  • Hypotheses May be generated from any of the following except
    10·1 answer
  • List two examples of how chemical or nuclear energy can be transformed
    14·2 answers
  • Which level of organization is directly below organ system? organelle cell tissue organ
    5·2 answers
  • Why does the hydrosphere need the atmosphere?
    13·2 answers
  • How does Earth's internal structure contribute to its magnetic field?
    13·2 answers
  • Fault lines are:
    13·1 answer
  • Explain how viruses differ from living organisms.
    13·1 answer
  • What is a niche?<br> It is the food an organism eats.<br> It is how the organism lives.
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!