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
Nesterboy [21]
3 years ago
11

Explain why it is important to put a lid on the Petri Dush​

Biology
1 answer:
Arte-miy333 [17]3 years ago
5 0

You have to put a lid on petri dishes in order to ensure that no outside contaminants get inside the dish.

You might be interested in
how do engineers use models and earthquakes simulations to test designs for earthquake resistant buildings and structure
Oksana_A [137]

In Earthquake testing, the engineers are using the world largest shake tables to test new construction methods for buildings in the areas prone to the earthquake.

<u>Explanation:</u>

They believed that they have the devised a system to build the taller wood-frame buildings that can still safely withstand even very powerful tremors. To withstand the collapse, the buildings need to redistribute the forces that travel through them during a seismic event.

Shear wells, cross braces, diaphragm, and moment-resisting frame are the central reinforcing the building. Shear wells are the technology of the useful building. That helpful to transfer the earthquake forces.

6 0
3 years ago
What is the best science fair project bio in high school than
lora16 [44]

Answer:interactive model of any normal project

Explanation:

5 0
3 years ago
For water to travel across the cell membrane at a substantial rate, what does it need?
jeka57 [31]

Answer:

It needs protein channels known as Aquaporins.

Explanation:

These Aquaporins, also referred to as water channels, are membrane proteins which serve as passageways for water. Aquaporins facilitate the transportation of water and other neutral molecules across cell membranes.

8 0
3 years ago
Scientists suspect that human language evolved around _______ years ago.
yawa3891 [41]
Scientists suspect that human language evolved around 150000 years ago.
<span>the human language is linked to the Homo Sapiens who lived around 150,000 to 200,000 years ago in eastern or perhaps southern Africa</span>
The reason why scientists suspect this is <span>by evidence of abstract and symbolic behaviour in the early modern humans, taking the form of engravings on red-ochre.
</span>
3 0
3 years ago
What happens to orbital velocity of earth as it gets closer to the sun
natita [175]
It increases.
.
.
.
.
.
.
.
.
.
.
7 0
3 years ago
Other questions:
  • Why might it be advantageous for a storage polysaccharide to have a branched-chain structure instead of a linear structure?
    14·2 answers
  • Which of these descriptions of the behavior of chromosomes during meiosis explains mendel's law of segregation?
    11·2 answers
  • Which among them is NOT a security alliance that the US belongs to?
    13·1 answer
  • The DNA in a cell's nucleus encodes proteins that are eventually targeted to every membrane and compartment in the cell, as well
    14·1 answer
  • A group in which the variable is changed in an experiment is called ___
    15·1 answer
  • Please help with my biology
    8·2 answers
  • The periods are the rows of the modern periodic table.<br> True or false
    12·2 answers
  • According to the table provided, which pond organism shares the most characteristics with animals?
    9·1 answer
  • Describe the founder effect.
    9·1 answer
  • 11. The only freely moveable bone in the skull is the
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!