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
Sphinxa [80]
2 years ago
8

For about how many years of geological time have humans existed on Earth?

Biology
1 answer:
VMariaS [17]2 years ago
6 0
I think that it is 4.5 million years. It does not end there though because other people would just say it and go. The reason we know this is because there is some people who lose teeth in those areas when mankind started then they took it to a lab and they found their results after continuous testing.

You might be interested in
An increase in the population of an organism would most likely be associated with
Alex73 [517]

Answer:

yes

Explanation:

yes

8 0
3 years ago
9. Three emerging technologies are:
liq [111]

Answer:

B

Explanation:

7 0
3 years ago
How do mutations effect individual traits?
Lostsunrise [7]
Mutations can affect the coding of "base pairs" in the chromosome of an individual by various means like:
1) by Deletion
2) by Duplication
3) by Translocation
4) by Inversion

After all that changes, codes deviates from normal information & can affect individual in negative way. In that manner, Mutations affect individual traits.

Hope this helps!
6 0
3 years ago
What is the name of the "job" a parent decides to have when helps out their child(ren)'s field trip.
Fiesta28 [93]

Answer:

chaperone?

Explanation:

4 0
2 years ago
Common ancestors only exist within a single species.
puteri [66]

<u>Answer:</u>

<em>It is not true to say that common ancestors occurs only within a single species rather two species with similar traits might have a common ancestor. </em>

<u>Explanation:</u>

If the ancestor is same for both the species then it is said that both the species are closely related and share common ancestor with similar evolutionary relationship.

Phylogenetic tree are drawn and studies are done to understand the ancestor of a species. The evolution has occurred from the ancestor to the new species formed.

6 0
3 years ago
Other questions:
  • If W stands for long wings, write the symbols for the alleles of each parent fly
    11·2 answers
  • If a cell in g1 has 40 chromosomes, then at the end of meiosis i there will be _________ chromosomes in each daughter cell, and
    11·1 answer
  • What is a european starlings ecological role
    5·1 answer
  • Animal cells do not go through which of the following processes?
    11·1 answer
  • BRAINLIESTTT ASAP!! PLEASE HELP ME :)
    13·2 answers
  • A group of scientists are studying the effects of different fertilizers on the growth of pea plants. They began their study with
    7·2 answers
  • Which resource is sometimes unpredictable in terms of energy production?
    9·2 answers
  • What strengthens the cell membrane?
    12·1 answer
  • Which of the following statements explains the importance of enzymes that check for and repair mistakes during DNA replication?
    5·1 answer
  • What is the correct format for the scientific name of an extinct carnivorous dinosaur?.
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!