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
Mkey [24]
3 years ago
6

During which section of the geologic time scale did the first modern human evolve?

Biology
2 answers:
Airida [17]3 years ago
7 0
"During the Quaternary period of the Cenozoic era" is the section of the geologic time scale among the choices given in the question that <span>the first modern human evolved. The correct option among all the options that are given in the question is the second option or option "B". I hope the answer helps you.</span>
Ludmilka [50]3 years ago
6 0

Letter A is correct (Devonian)

Expalation: The periods Palogene, Neongene, Quanternary are all in the Cenozic era, witch leaves Devonian to be our awnser.

You might be interested in
Please help with 10-15.
larisa [96]
10 is 4
11 is 3
15 is 3 (where it says 3 ok)
5 0
3 years ago
4. Compare and contrast a mechanical wave and an elec-
densk [106]

Answer:

difference:

1. The generation mechanism is different, the mechanical wave is generated by mechanical vibration; the electromagnetic wave generation mechanism is also different, there is the periodic movement of electrons (radio waves); the outer electrons with atoms are generated after being excited (infrared, visible, ultraviolet) The inner electrons with atoms are generated after excitation (roentgen rays); the nuclei with atoms are generated after excitation (gamma rays).

2. The propagation mechanism is different: the mechanical interaction between the particles and the alternating induction of the electromagnetic field.

3. Mechanical waves have both transverse waves and longitudinal waves; electromagnetic waves are material waves and belong to transverse waves.

4. The influence of the medium on the propagation speed is different

Explanation:

https://qiaodahai.com/similarities-and-differences-between-mechanical-waves-and-electromagnetic-waves.html

7 0
3 years ago
To test how fertilizer affects tomato plants, a farmer divided a field of young tomato plants into 10 plots of equal size. The f
Feliz [49]
B is the answer to the question

6 0
3 years ago
The observed results of an experiment that occur from changes in the independent variable are known as _______. A. Controlled va
Otrada [13]

Dependant variable as it is what is measured

8 0
3 years ago
How can I remember this definition of hybridization? (Like hints)
Vaselesa [24]
Easy. A hybrid is literally a crossing of two things. A hybrid is a blueprint (genetic instructions) ready to be build.

If you can remember the hybrid and blueprint part I'm pretty sure you'll get it.
4 0
3 years ago
Read 2 more answers
Other questions:
  • As the human population grows, some minerals in everyday products could become scarce. Which of the following is the best way to
    9·2 answers
  • Match the term with the appropriate definition.
    14·1 answer
  • The __________ is the layer of the atmosphere where satellites and the space shuttle orbit the Earth.
    10·1 answer
  • a puppy who has ingested part of a rat is showing signs of a parasitic infection due to diarrhea, weight loss, dehydration ans s
    13·1 answer
  • People with blood type o __________. a have both antigens a and b on their erythrocytes black both antigens a and b on their ery
    11·1 answer
  • The growth cycle requires _____ to run. energy organisms chemicals cells
    12·2 answers
  • What is true for all cells
    13·1 answer
  • It gets published <br> :)
    10·2 answers
  • Which term means "without the<br> ability to speak or make sounds"?
    8·1 answer
  • Which soil horizon is primarily responsible for this soil's fertility?
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!