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
alina1380 [7]
3 years ago
11

Record your observations of how the agar cubes look before you add vinegar and then after you add vinegar and stir. How did the

appearance of the cubes change over time?
Biology
2 answers:
dedylja [7]3 years ago
8 0

Answer:

Both the size and color of vinegar cubes changed.

Explanation:

The agar cubes before the addition of vinegar looked pink in color due to the addition of coloring agent for testing color change on addition of vinegar.

When vinegar is added the color  of agar changes from pink to orange as vinegar is acidic in nature.

Also as the vinegar diffused into the cubes it became large after stirring. Thus, both the size and color of vinegar cubes changed.

hammer [34]3 years ago
7 0
The vinegar would tend to diffuse into the agar blocks decreasing the amount of vinegar outside the agar cubes and increasing the volume of agar cubes. Diffusion<span> is the movement of particles (ions or molecules) from an area of higher concentration to an area of lower concentration. 

</span>
You might be interested in
17. Which of the following statements are accurate?
Naddik [55]

Answer:

A. Neurotransmitters can act as ligands.

B. Acetylcholine is a neurotransmitter. It can bind to an acetylcholine receptor on the surface of a cell. If this receptor is also a sodium channel, we would call acteylcholine a ligand and its receptor a ligand gated receptor.

Explanation:

Answer:

A. Neurotransmitters can act as ligands.

B. Acetylcholine is a neurotransmitter. It can bind to an acetylcholine receptor on the surface of a cell. If this receptor is also a sodium channel, we would call acteylcholine a ligand and its receptor a ligand gated receptor.

Explanation:

Neurotransmitter are chemicals that transfer signals between neurons and nerve cells. They control some physical and physiologocal activity such as appetite, food.

Acetycoline is an example of neurotransmitter and it is located in the parasympathetic nervous system. Ligand are substance that form complexes with biomolecule. They serve biological purpose with this biomolecule.

This ligand binds to target site. Neurotransmitter act as ligand by binding to receptor in the postsynaptic neuron and acetycoline a type of neurotransmitter can also serve as ligand they bind to acetycoline receptor on cell surface.

5 0
3 years ago
Biologists use a ________ to illustrate evolutionary relationships between organisms and their ancestors.
Yuliya22 [10]
The phylogenetic tree is commonly used by biologists to study evolutionary relationships between organisms and their ancestors. To add up, it is a diagram that branches the "phylogeny" of a single organism which could be very significant and determining on how genetically different or similar they are to their ancestors.
4 0
3 years ago
I’ll give Branliest answer!
iVinArrow [24]

I am pretty sure the answer is A but i'm not sure

7 0
2 years ago
The combined observations of Mattias Schleiden, Theodor Schwann and Rudolph Virchow resulted in the formation of the cell theory
alexandr402 [8]

Answer:

The question lacks options, the options are:

A) All cells contain a nucleus.

B) All cells come from other living cells

C) All living organisms are made of one or more cells.

D) Cells are the basic unit of structure and function of all living things.

The answer is A

Explanation:

In 1830's, three scientists named; Mattias Schleiden, Theodor Schwann and Rudolph Virchow contributed to describing the basic properties of the cell, which they proposed in their so named CELL THEORY. This widely accepted cell theory has three components:

All living organisms are made up of one or more cells.

Cells are the basic and fundamental unit of life

All existing cells come from cells that have previously existed.

It was not proposed that all cells have a nucleus

8 0
3 years ago
While hiking in a rural area, you encounter a wetland and conclude that it's a swamp. Which feature helped you reach this conclu
ExtremeBDS [4]

Answer:

I think answer

B. It contains a number of carnivorous plants.

8 0
3 years ago
Read 2 more answers
Other questions:
  • How does the United States limit the power of its government? i. Government officials are subject to the law. ii. Government off
    14·1 answer
  • All living things have certain characteristics. How many characteristics are used to describe living things?
    6·2 answers
  • Why does weight loss come slowly following rapid loss during the initial three weeks of a rigorous diet?
    12·1 answer
  • A parrot learns that every time it says “Pretty Please” its owner gives it a piece of fruit. What is this an example of?
    10·2 answers
  • You have just discovered an organism that lives in extremely cold environments. Which of the following would you predict to be t
    10·1 answer
  • 3. Characteristics that are harmful to a species tend to decrease in frequency from generation to generation because these chara
    5·1 answer
  • Which of the following diseases is not explained by Germ theory
    12·2 answers
  • What is on a transplanted organ that causes the transplant recipient's body to reject it?
    12·1 answer
  • I need help with this IMMEDIATELY I will give 20 points and give a brainliest answer if someone answers it. PLZ HELP ME NOW!!! W
    12·2 answers
  • GIVING BRAINLIEST, FIVE STARS AND THANKS!
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!