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
Zinaida [17]
3 years ago
9

Over the past century, several scientists around the world have made the following observations:

Biology
1 answer:
prohojiy [21]3 years ago
3 0

Mitochondria and plastids were once free living bacteria that underwent endosymbiosis inside a eukaryotic cell, which helped with cell respiration

You might be interested in
Peat is a mixture of partially decomposed plant and animal material found in waterlogged, acidic, anaerobic environments. people
lbvjy [14]

Based on the data from the restoration process of peat, it can be concluded that peat is a fossil fuel because the total restoration time is lengthy.

<h3>What are fossil fuels?</h3>

Fossil fuels are fuels produced from the remains of dead plants and animals which decomposed under intense heat and pressure over a long period of time.

Fossil fuels are non-renewable energy sources because their time of replenishment is longer than a human lifetime.

Examples of fossil fuels include:

  • petroleum
  • coke
  • peat.

In the restoration process of peat, the restoration time takes a long time of over 100 years.

Therefore, it can be concluded that peat is a fossil fuel because the total time for restoration is lengthy.

Learn more about fossil fuels at: brainly.com/question/10172005

8 0
2 years ago
Rocks have been used by humans throughout histroy for? (Tool, Weapons. &amp; - )
Anika [276]
Hammers, arrow heads, possibly axes
4 0
3 years ago
Which question can be answered by science?
jasenka [17]
A

Bitstuctscudycvivocutxdyctti
5 0
3 years ago
Which description best fits the activity of a cell during interphase?
katovenus [111]

Answer:

<em>The correct option is A) The cell carries on metabolism.</em>

Explanation:

During the interphase, the cell tends to carry out its normal cell activities and it prepares itself for the cell division process during the interphase. It synthesizes proteins etc which will be required for cell division during this phase. The cell becomes enlarged during this phase. A cell tends to spend most of its time in the interphase. Hence, option A is correct.

Other options, like option C, cannot be considered to be true because the process of cell splitting does not occur during the interphase, It happens during the process of cytokinesis.

6 0
3 years ago
Why is the nucleus often called the director of the cell?
Schach [20]
Because the nucleus is the center of the cell and where all the extremely important parts are, the nucleus of a cell is like the brain of a person. It is the center of everything and the 'boss' of everything that goes on.
6 0
3 years ago
Other questions:
  • What is the role of the greenhouse gases in the atmosphere?
    7·2 answers
  • The sodium-potassium pump can transport _______. the sodium-potassium pump can transport _______. only if sodium and potassium a
    9·1 answer
  • The bony, spiral-shaped, fluid-filled sense organ used for hearing is the __________.
    14·1 answer
  • Which statement about DNA replication is FALSE?
    10·1 answer
  • Ape species began to dwindle during the Miocene, leaving only a few remaining: a situation that exists up to the present. It is
    5·1 answer
  • Which organisms would die first in the absence of sunlight?
    10·2 answers
  • What is the breakdown of the earths crust into sediment called
    5·1 answer
  • Why do grocery stores spray their fresh produce with water
    12·1 answer
  • Where does the plant get the energy needed for photosynthesis to occur?
    7·2 answers
  • Biology i will give brainliest
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!