Carbon-14 has a half life of 5730 years, how many grams of a 4.0 g sample would be left after 3.5 half-lifes?

Answers

Answer 1
4/2 2/2 1/2 0.5/1/2 = 0.325

Related Questions

consider the cell labeled x in figure 10-9 containing 4 chromosomes. which of the four cells below it represents a healthy gamete that could be produced from this cell

Answers

Answer:

A) A

Explanation:

5. How is this different from Darwin's idea of fitness?​

Answers

Answer:

Darwinian fitness differs from the “physical fitness”, which is more associated with health, muscle tissues, oxygen, and physical effort. Darwinian fitness is more concerned about reproductive success. Darwinian fitness describes how successful an organism has been at passing on its genes.

GIVING BRAINLEST :))

A yeast cell that forms a bud is called the "mother cell." Why is there no mother cell after a paramecium divides?

Answers

Because the mother cell has divided to give two new daughter cells.

There is no mother cell after a paramecium divides because it is divided by binary fission and the paramecium is divided into two identical cells, called daughter cells, there is no mother cell left.

What is paramecium?

Paramecium is a protist. It is oval-shaped with cilia all over the body, and it is minute and can be seen only under a microscope. It engulfs its food through the body cavity, which is its mouth.

Binary fission means when the cell is divided into two daughter cells. The division is asexual reproduction. The cell divided DNA into two copies and then each cell gets the DNA.

Thus, there is no mother cell after a paramecium divides since binary fission is used and the paramecium is split into two identical cells, known as daughter cells.

To learn more about paramecium, refer to the below link:

https://brainly.com/question/19580554

#SPJ2

Tropical rain forests receive heavy rainfall. How do the trees and plants of this region withstand rotting?

Answers

Answer:

The trees and plant withstand rotting in tropical rain forest using some of these mechanisms.

Explanation:

Tropical rain forests are known for the presence of heavy rainfall, due to this, there might be a lot of water retention in the root. Some trees and plants however are able to store this water and use some of the below mentioned methods to prevent decay and rot.

Some trees in the tropical rain forest may produce very hard outer layer, these hard outer layer will protect the plant and trees form predators and microorganisms from penetrating into the inner tissues of the tree.

Some withstand rotting by producing chemical compounds, these chemical compounds prevents predators and microorganisms from destroying the plants and trees.

The diagram below shows a microscopic view of the lower epidermis of a maple leaf. What type of cell is indicated by label B?

Answers

Answer: I think it’s a guard cell

Explanation:

Answer:

Guard cells

Explanation:

The diagram below represents a microscopic structure observed during mitosis.
X
А
The region indicated by letter A is known as
1.
an enzyme
2.
a gamete
3.
a gene
an amino acid

Answers

Answer:

Gene

Explanation:

It should be gene, because it is pointing to a segment on the chromosome. Also it cannot be any of the other options, so it has to be a gene.

Which of these contribute to the reduction in the population of harvested organisms?
a) harvesters
b) government
c) scientific research
d) all of the above

Answers

Answer:

D

Explanation:

I think I think I think I think

does eliza have asthma or diabetes

Answers

Answer:

You did not give details, but asthma is the diffuculty of breathing and is in the respiratory tract. Diabetes, on the other hand, is when your body does not take care of the extra insulin (type 2), or when your body does not produce enough insulin and your blood sugar levels are off.(type 1)

Explanation:

ncnfkrldkcmcmfnkeldlckfkrk turkic ifiekf

Darwin observed a variety of tortoises on the Galapagos Islands. These observations provided evidence for which of these statements?
A Species vary locally
B Species vary over time,
c Island species are identical to mainland species
DIsland species are unrelated to mainland species

Answers

Answer:

B) Species vary over time

Answer: Species vary over time!

Explanation:

I did it

Which of the following statements about natural selection is true:

• Individual organisms change over time

•Populations of organisms change over time

•Organisms do not change over time


Answers

Answer:

Option 2 (Population of organisms change over time.

a.man displaces 3600m in 30 mins calculate its velocity

Answers

Answer:

120 m/s

Explanation:

formula is displacement by time

v=s/t

v= 3600/30

v= 120m/s

Explanation:

displacement/ time

[tex]v = \frac{3600}{30} = 120 \frac{m}{min} \\ = 2 \frac{m}{s} [/tex]

What characteristic enable the uterus to hold the fetus even though it is just the size of a fist?
help plsss :(​

Answers

Answer:

Explanation:

It is made of flexible but strong tissues of granular cells. They are thick tissues so they don't tear down.

A farmer lost most of his crops last year because of insects. This year he decided to use pesticide to kill the insects. However, some of the insects survived the pesticide and have reproduced. The new population of insects is not affected by the pesticide. After several generations, more insects are born that survive the pesticide. What process explains the change in insect population?

Question 2 options:

extinction


artificial selection


genetic engineering


natural selection

Answers

I believe it is , this is because natural selection is when it happens naturally over time but when a human intervenes it becomes artificial selection in this case it was the farmer using pesticides

Prey
A. An animal that is hunted and killed by another for food
B. Is a way an animal’s body helps sit survive or live in its environment
C.is an animal that eats other animals

Answers

Answer: A

Explanation:

i took biology and all that fun stuff with trophic levels

The answer is a because the predator eats the prey

how much force is needed to make a 12 kg object accelerate at 3 m/s

Answers

The answer would be 36 Newtons

A scientist who digs for and studies fossils is called a __________. (1 point)

Fossils can be the __________ or __________ of dinosaurs and are formed by __________ and __________. (4 points)

The tree sap that insects can get caught and fossilized in is called __________. (1 point)

When an animal dies, its remains are either __________ or they __________ away. (2 points)

Over time, the remains of an animal are covered with mud and sand called __________. (1 point)

List two ways in which the skeletons of animals get to the surface. (2 points)

In what kind of rocks do we find fossils? (4 points)

Answers

A scientist who digs for and studies fossils is called a __________. (1 point)

paleontolosits

Fossils can be the __________ or __________ of dinosaurs and are formed by __________ and __________. (4 points)

? remains ? ?

The tree sap that insects can get caught and fossilized in is called __________. (1 point)

ambeytide?

When an animal dies, its remains are either __________ or they __________ away. (2 points)

eaten or swept

Over time, the remains of an animal are covered with mud and sand called __________. (1 point)

?

for the last 2 im not sure

hope this helps

i tried to answer everything as best as i could

but there r many that im not sure

sorry if the answers that i provided r wrong

have a good day

:)

(GIVING BRAINLIEST!!)

There are some clouds forming in the sky on a hot day, but inside the clouds, there are freezing temperatures. Which form of precipitation would you expect?

A) Hail
B) Rain
C) Sleet
D) Snow

Answers

Answer:

A) Hail

Explanation:

The answer is
A) Hail

Can someone please tell me an explanation of Interpahse in mitosis please? Also please dont copy and paste​

Answers

Answer: at the point when the cell develops and duplicates its DNA prior to moving into mitosis. During mitosis, chromosomes will adjust, isolated, and move into new daughter cells.

When the Earth's continental crust and ocean crust formed, they were different densities. Why did they differ in density and how did this affect their formation?

A.) The continental crust was thicker and less dense. It rose above sea level, separating land from water.

B.) The continental crust was thicker and more dense. It sunk below sea level, separating land from water.

C.) The continental crust was thinner and less dense. It rose above sea level, separating land from water.

D.) The continental crust was thinner and more dense. It sunk below sea level, separating land from water.


I think it’s B, but I’m not completely sure. Help please!

Answers

Answer: A.) The continental crust was thicker and less dense. It rose above sea level, separating land from water.

Explanation:

The Ocean crust is made out of rocks like basalt with a thickness of about four miles. The Continental crust on the other hand is made out of granite and other similar minerals and is between six and 47 miles in thickness which makes it thicker than the Oceanic crust.

With basalt being more dense than granite, the Oceanic crust sank and the Continental crust rose thereby separating land from water.

Answer:

Answer: A.) The continental crust was thicker and less dense. It rose above sea level, separating land from water.

Explanation:

Toook the testttt :)))

FLVS??? :)

Why is about half of all freshwater on Earth is inaccessible to humans?
Group of answer choices

It is too deep underground

It is in the atmosphere in clouds

It is too dirty to clean

It is frozen in glaciers

Answers

it is frozen in glaciers
It is frozen in glaciers

Again PLEASE help I will give Brainliest!!!!!!!!!!!!!!!!

Answers

Its the one all the way at the bottom

what genotype would make a blue phenotype?

1. AA
2. Aa
3. aa
4. none of the above

Answers

Answer: None of the above. The genotype bb produces a blue phenotype.

Help plsssssssssssssssss

Answers

Answer:       D

Explanation: Sorry for no explanation

Is the brain made up of Neurons itself?

Please don't answer unless you know the answer

Answers

Answer:

Yup it is made of neutrons itself composed of both neutrons and glial cells

What examples of weathering and erosion do you see in your community? Which erosion control devices exist, or which devices would be helpful to put in place?

Answers

Answer:

Erosion Control Blankets Similar in make and use to fiber rolls, erosion control blankets are also used to slow down water runoff and soil erosion on slopes. These blankets are carefully laid down onto the slope soil, their upper edges buried into the ground to keep them in place

Explanation:

hope it helps

can please vote me the brainliest

Answer:

erosion control blankets are similar in the making which is also used to slow down water runoff and soil erosion on slopes

I hope this helps you have a great day!

What disorder results when human body cells lose the ability to respond to internal regulatory signals that control cell growth?


diabetes
cancer
cellulitis
hemophilia

Answers

I think it’s cancer
Sorry if I got that wrong

Most of the mass in a large tree comes from?

Answers

carbon dioxide i think

Answer:  Carbon is right

Explanation:

During photosynthesis carbon dioxide is pulled from the atmosphere and then captured into the tree's molecules and somehow it make the whole tree heavier.

Natural selection is a mechanism for evolution.
O True
O False

Answers

the answer is true. Bc the stronger they are the more likely they will survive.

true

Explanation:

Its true because something has to die for others to thrive.

What happens when light strikes a transparent object?

A All the light passes through the object
B. None of the light passes through the object
C. All of the light is reflected then reabsorbed
D. Some of the light is scattered or absorbed and some passes through

Answers

Answer: A. All of the light passes through the object.

Explanation:

The following is the results of a genotype being "foiled" for a dihybrid cross: BS | Bs | bS | bs
Determine the parents genotype
A) BBSS
B) BBss
C) BbSs
D) BbSS

Answers

Answer:

C. BbSs

Explanation:

The foiled results of the genotype include both capital and lowercase versions of both letters, b and s.

This means the genotype has to be heterozygous for both the B and S traits, since the foiled results have both dominant and recessive alleles.

So, the genotype must be C, BbSs

The foiled results of the genotype for the offsprings include BS | Bs | bS | bs.

The parent's genotype will then be BbSs.

The genotype of both parents have to be heterozygous as a result of the

presence of its forms in the B and S traits. There is the presence of the

dominant (B,S) and recessive traits (bs).

The genotypes of the parent will however have both traits in them which

translates to the option C) BbSs being the most appropriate.

Read more on https://brainly.com/question/21102431

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