How to Determine density from an experiment ?

Answers

Answer 1

Answer:

To find the total Volume displaced, subtract Initial Volume and Volume of Object. To calculate Density divide the Mass in grams by the Volume displaced in milliliters. Finally record whether the object floats or sinks.

Explanation:


Related Questions

when a tautomeric shift occurs, what is true about the resulting mutation?

Answers

When a tautomeric shift occurs, then the resulting mutation ALWAYS changes a purine to a purine or a pyrimidine to a pyrimidine. A tautomeric shift may lead to a point mutation.

A mutation is any alteration in the nucleotide (DNA) sequence of the genome of an individual.

A tautomeric shift can be defined as a temporary change in the nucleotide base structure.

A transition mutation is a point mutation of one purine or pyrimidine base pair to the other purine/pyrimidine that occurs when one nucleotide base undergoes a tautomeric shift during DNA replication.

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1. Did the overall population of thr villages increase decrease or remain constant?
2. Did evolution (change in genotype frequency) occur in this population?
3.which genotypes(s) was selected for by natural selection?
4. Which genotypes(s) was selected against by natural selection?
5. Which genotype remained the lowest portion of the population? Why did this percentage remain so low?

Answers

Answer: remain constant

2 no

3. 1 2 and 4

4. 4 just 4

5. it remained low because EOF natural selection

___________________________ structure is the distribution of individuals among various age groups in a population.?

Answers

Answer:

Distribution structure is the distribution of individuals among various age groups in a population.?

Explanation:

it can be very difficult to select an angle for sneaking up to a grasshopper to catch it because grasshoppers have

Answers

Answer:

compound eyes and multiple ommatidia

quizlet verified BIO 1306 Ch. 50 Exam 2

:D

describe what a growth factor is and how it influences the cell

Answers

Answer:

Growth factors are proteins that act as mitogens to stimulate and encourage cell migration.

Explanation:

The movement of water across cellular membranes from a hypotonic to hypertonic environments through aquaporins, which are channel proteins, can be defined as both

A: simple diffusion and active transport.
B: active transport and facilitated diffusion.
C: osmosis and facilitated diffusion.
D: endocytosis and active transport.

Answers

C: osmosis and facilitated diffusion

escribe ONE way that the use of rodenticides affects the kit fox population AND explain how the size of the kit fox population is affected.

Answers

One way that the use of rodenticides affects the kit fox population will be a

reduction in the population.

Foxes are secondary or tertiary consumers which feeds on smaller animals

such as rodents in the ecosystem. The use of rodenticides will kill and

reduce the number of rodents available for food.

The reduction in the rodents means lesser source of food for the foxes and a

decrease in the population. The size of the kit fox population is affected

because a larger size being more affected than the ones with a smaller

size/population.

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Can anyone please help me

Answers

Answer:

because there is no essential conditions like water ,air,ect

Deserts often lack a large amount of sediment, making it hard for fossils to become buried in the ground.

To read signs, you need to have good ________ . focal vision peripheral vision paracentral vision double vision

Answers

Pretty sure it’s focal vision.
Hope that helps:)

To read signs, one needs good peripheral vision. The capacity to see things that are beyond of one's direct line of sight is known as peripheral vision. It is the capacity to perceive things that are beyond of one's direct field of vision.

Because it enables a person to perceive items that are situated at the boundaries of their peripheral vision, this form of vision is crucial for reading signs.

For instance, it's crucial to be able to understand signs that are placed along the side of the road when driving. A person might not be able to see the signs and might miss crucial information without adequate peripheral vision. Aside from peripheral vision, clear focus vision is crucial for reading.

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Need help please having trouble

Answers

Answer:

Brain

toxins

smaller

injury

protein

slow

rest

dementia

Answer: please add a clearer picture

The energy in ATP is -

a
Stored in the vacuoles
b
Not widely used by cells
c
Stored between its phosphate groups
d
Not very useful

Answers

Answer:

adenosine triphosphate

Explanation:

adenosine triphosphate (ATP), energy-carrying molecule found in the cells of all living things. ATP captures chemical energy obtained from the breakdown of food molecules and releases it to fuel other cellular processes.

B

The Diagram shows structures that form the surface of the trachea.
Which level of organisation is the structure labelled S ?
A. Cell
B. Organ
C. Organ system
D. Tissue

Answers

Its the tissue that is labeled s

Structure S is a simple columnar epithelium, which is a type of tissue.

The diagram shows the structures that form the surface of the trachea. The trachea is a tube that carries air from the lungs. The surface of the trachea is lined with a layer of tissue called the epithelium. The epithelium is made up of cells that line the inside of the trachea.

The structure labelled S is a type of epithelium called a simple columnar epithelium. Simple columnar epithelia are made up of cells that are arranged in a single layer. The cells in a simple columnar epithelium are tall and column-shaped.

The simple columnar epithelium in the trachea helps to protect the trachea from infection. The cells in the epithelium produce a mucus that traps dust and other particles. The mucus is then carried away by the cilia, which are tiny hairs that line the trachea.

The other levels of organization in the diagram are organ, organ system, and cell. The trachea is an organ, which is a collection of tissues that work together to perform a specific function. The respiratory system is an organ system, which is a group of organs that work together to perform a common function. Cells are the basic units of life, and they are the building blocks of tissues, organs, and organ systems.

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Mary wanted to know if seeds needed water to start growing or if any kind of liquid would work. Mary set up several experiments to find out. She used radish seeds, paper towels, plastic bags, and different kinds of liquid in her experiment. Mary put three seeds into each bag. She then used 30mL of liquid to wet a paper towel and put a different paper towel in each bag. Mary put all of the bags on the same table next to a window so that they could each get the same amount of light. She waited three days and then checked her plants.

independent variable:
dependent variable:
control:
experimental group:
control group:

Answers

Answer:

independent variable: 30mL of liquid to wet a paper towel

dependent variable: how much the plants grow if at all.

control: they all received the same amount of light, that or the paper towels are the same.

experimental group: It's not stated that she did indeed use water, but there is a need for a control group, if so, then it's the other 2 groups that didn't use water, also because I can't think of anything else.

control group: The groups that used water rather than the other 2 plants.

Explanation:

4. Using the Celsius scale, at what temperature does water freeze? At what temperature does water boil?

Answers

Answer:

Using celsius water freezes at 0, and water boils at 100.

Explanation: That is the purpose of the celsius scale to measure between those two points.

A given skull has flaring zygomatics, shovel-shaped incisors, round orbits, and moderate nasal aperture width. The ancestry of this individual is likely ________________

Answers

Answer:

Asian or Native American

Why is the red blood cell disc in shape?​

Answers

Answer:

Red blood cells are disc in shape because it allows the cells to flow smoothly through the narrowest blood vessels and provides flexibility to squeeze through them.

hope it helps you

18. Replicate the following four DNA strands using what you know about complementary base pairs.


a. AATACGTCCAGATTTT

c. CCCGCGGAATATACA

b. TTAACCGAGTTCAGA

d. AGGGCTACTTCAGAC

Answers

Answer:

a. TTAGCAGGTCTAAA

b. GGGCGCCTTATATGT

c. AATTGGCTCAAGTCT

d. TCCCGATGAAGTCTG

The replication can be TTATGCAGGTCTAAAA, GGGCGCCTTATATGT, AATTGGCTCAAGTCT, and TCCCGATGAAGTCTG respectively.

What is complementary base pairing?

Complementary base pairing occurs when guanine always hydrogen bonds to cytosine and adenine always binds to thymine in DNA.

In comparison to the A-T bond, which always shares two hydrogen bonds, the bond between guanine and cytosine shares three hydrogen bonds.

Each strand of the double helix contains all of the information required to reconstruct the other half using the base pairing mechanism.

The strands are said to be complementary because each can be used to make the other.

Complementary base pairing describes how the nitrogenous bases of DNA molecules align with one another. The double-helix structure of DNA is also due to complementary base pairings.

TTATGCAGGTCTAAAA, GGGCGCCTTATATGT, AATTGGCTCAAGTCT, and TCCCGATGAAGTCTG are possible replications.

Thus, these are the complementary base pairing for the given codes.

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How does your body respond to an increase in the need for energy----why would you need more energy?

Answers

Your body circulates more blood and your heart beats faster.

You need more energy to do activities that take more effort.

pls give brainliest.

Study the diagram showing the range of temperature in the Earth’s layers.

Which temperature most likely corresponds to the asthenosphere?

1,613°C
2,521°C
3,628°C
6,217°C

Answers

i think c is the correct option...

Answer: a) 1,613°C

Explanation: just took the test

science questions , may be out of order but please help asap ( about mitosis ) may be out of order so i made two questions

Answers

Answer:

8. Prophase

9. Gap 1

10.Metaphase

Explanation:

Basically from what I remember

Prophase: Mitosis begins, nuclear envelope is gone

Metaphase: Chromosomes line up and spindle fibers attatch

Anaphase: Chromosomes are torn apart to separate sides of the cell

Telophase: Separates duplicated genetic material into 2 identical nuclei

Cytokenesis: The cytoplasm itself separates and forms 2 cells.

Gap 1: Cells increase in size as new organelles are formed

Synthesis: DNA is formed

Gap 2: DNA is checked as cell begins to divide

Mitosis: Cell divides

So from the simplified versions of things I remember, I think the answers listed above probably suit each question best.

Hope I helped a bit!

Which cells can form ATP by breaking down glucose?

a
Prokaryotes only
b
Plants only
c
All cells
d
Animals only

Answers

Answer:

C.) All cells

Explanation:

because energy needs plants as well as animals including prokaryotic cell

if you visit the beach on a hot summer day you will probably feel a Sea Breeze coming off the water onto the land. Which of the following causes this sea breeze?

A. The water is warmer than the land during the day.
B. Hurricanes that form in the oceans blow air into the shore.
C. During the day,solar radiation warms the land faster than the water.
D. Earth is tilted toward the Sun, causing air to move inland from the water​

Answers

If I am correct, the answer is supposed to be C due to on hotter portions of the day, land warms much faster than the water. This causes cooler air to rise from the oceans and the wind currents then push the air towards the land.

what is the answer to 2 x?=2

Answers

Answer:

2x=2

/2 both sides

x=1

Brainliest plz

Answer:

X=1

Explanation:

2x=2 or 2 times x equals 2 means x times 2 will give you 2 which is the only number 1 because anything times 1 is that number so 2(1)=2 or x=1

Describe the differences between a monocot and a dicot. Are they similar in any way? Provide examples in your explanation. PLEASEE

Answers

Answer:

Monocots differ from dicots in four distinct structural features: leaves, stems, roots and flowers. ... Whereas monocots have one cotyledon (vein), dicots have two. This small difference at the very start of the plant's life cycle leads each plant to develop vast differences.          They are similiar in ssome ways are they both grow with a type of leave same shae in third growing proscess

Explanation:

Answer:

Hey mate.....

Explanation:

This is ur answer.....

Monocots differ from dicots in four distinct structural features: leaves, stems, roots and flowers. But, the differences start from the very beginning of the plant's life cycle: the seed. Within the seed lies the plant's embryo. Whereas monocots have one cotyledon (vein), dicots have two.

Similarities :-

Both monocots and dicots have stamens with two pairs of pollen sacs, male gametophytes of three cells, and female gametophytes made up of seven cells with eight nuclei. Also, the carpel is closed.

Hope it helps!

Brainliest pls!

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What organs are targeted by the hormones secretin and cholecystokinin (CCK) to release pancreatic juice and bile into the small intestine for digestion

Answers

Secretin acts in tandem with another hormone called cholecystokinin (CCK). Not only does CCK stimulate the pancreas to produce the requisite pancreatic juices, it also stimulates the gallbladder to release bile into the duodenum.

Which part of the plant cell absorbs the energy needed for the process

Answers

Answer: chloroplasts

Explanation:

Frequent earthquakes in an area may indicate

Answers

Earthquakes occur along fault lines, cracks in Earth's crust where tectonic plates meet. They occur where plates are subducting, spreading, slipping, or colliding. As the plates grind together, they get stuck and pressure builds up. Finally, the pressure between the plates is so great that they break loose

Frequent earthquakes in an area indicates that there are tectonic plates boundaries and there is sudden regression of underground rocks. Through the areas when there is sudden movement and dynamic stress along with the sudden triggering.

What are tectonic plates ?

Tectonic plates are larger pieces of earth's crust  and uppermost mantle. Tectonic plates movement cause the earthquakes to occur.

The other types of earthquakes are that of volcanic earthquakes, induced earthquakes and collapse earthquakes.

Therefore, earthquakes are mainly due to various conditions and other environmental activities that are not under control.

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What factors help blood move through veins?

Answers

The pumping force of the ventricles moves blood through the arteries. The breathing movements exerts pressure on the chest veins, the valves in the larger veins keep the blood from flowing backwards, and the skeletal muscles' contraction all help the blood in veins to move.

Cytokinesis begins with the appearance of a

Answers

Answer:

Cleavage furrow

Explanation:

Cellular respiration uses one molecule of glucose to produce approximately
A. 2 atp molecules
B. 4 atp molecules
C. 32 atp molecules
D. 36 atp molecules

Answers

Answer and Explanation; Equation for Cellular Respiration:

C₆H₁₂O₆ + 6O₂ --> 6H₂O + 6CO₂ + 36-38 ATP

Products of Cellular Respiration:

Water, Carbon Dioxide, and 36-38 ATP molecules

The answer is (D) 36 ATP molecules.

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