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
Agata [3.3K]
3 years ago
8

3. When (what year) were stone tools first used?

Biology
1 answer:
Dima020 [189]3 years ago
4 0
Stone tools we’re first used around 3,300 BCE
You might be interested in
Use a protractor to draw a parallelogram that has two side lengths of 5 inches and 2 inches and two adjacent angles that measure
Irina18 [472]

If the adjacent angles of a parallelogram measure 25° and 155°, the other two angles would measure 25° and 155°

<h3>What is a parallelogram?</h3>

A parallelogram is a quadrilateral (has four sides and four angles) in which both sides are equal and parallel to each other. Opposite angles of a parallelogram have the same measure and the diagonals are equal in length.

If the adjacent angles of a parallelogram measure 25° and 155°, the other two angles would measure 25° and 155° because opposite angles are equal.

Find out more on parallelogram at: brainly.com/question/970600

4 0
2 years ago
The Punnett square shows the possible genotype
Lapatulllka [165]
Ww and O 75 is the answer
3 0
2 years ago
What is the role of the effector in a feedback loop?
aleksklad [387]
The effector in a negative feedback system acts to counter any changes made to a particular property. If it were positive feedback, it would amplify the change and make it more extreme
5 0
3 years ago
How could UV light potentially affect an organism’s trait
love history [14]
UV light could change the DNA of the skin cells of the organism, possibly causing cancer cells to form.
8 0
3 years ago
What information would you need to know in order to make an accurate classification of these organisms?
Shtirlitz [24]

Answer:

Information that are required to classify an organism are given below.

1. Unicellular or multicellular : First we have to see that from how many cells the body of organisms formed.

2. Composition of cell wall: Secondly we have to see the cell wall composition.

3. Prokaryotic or eukaryotic cell: We have to see the nucleus of organisms, if it has nucleus we can say that it is a eukaryotic cell.

4. Mode of nutrition: Mode of nutrition means is the organisms is autotroph or heterotroph.

If they have similarities, so it is placed in one group. If not so it is placed in different group or kingdom.

7 0
3 years ago
Other questions:
  • "which list contains only vitamins that do not function as coenzymes in energy metabolism?"
    13·1 answer
  • Why is feedback inhibition important in metabolic pathways?
    6·1 answer
  • The __________ perspective on the family is characterized by concepts linking psychosocial factors to physiology, genetics, and
    12·1 answer
  • Which of the following is not an example of an adaptation? A . an individual choosing to put on a coat to stay warm B . the whit
    15·2 answers
  • Why is respiration known as energy releasing process?​
    12·2 answers
  • What is the dependent variable in this statement? " Pools with dark pool tile heat up faster (i.e., have a higher temperature) i
    15·1 answer
  • What type of tropism aids plants the most in photosynthesis
    7·1 answer
  • The glomeruli in olfaction are most nearly analogous to the _____ in vision.
    12·1 answer
  • (07.02 LC)
    10·1 answer
  • Scientists often experiment with Brassica plants
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!