Scientists use radiometric dating to determine the age of
rocks. Radioactive atoms are used for radiometric dating.
Which statement does not describe radioactive atoms?
A. They are used for absolute dating of samples.
B. They are extremely stable types of atoms.
O C. Half of the atoms decay during one half-life.
D. They change into atoms of a different element.

Answers

Answer 1

Answer: B

Explanation: They are extremely stable types of atoms

Answer 2

Answer: They are extremely stable types of atoms

Explanation:    Ap3x


Related Questions

How does the spread of an airborne pathogen compare to the spread of foodborne and person-to-person pathogens

Answers

Answer:

Airborne transmission of an illness occurs when bacteria or viruses travel on dust particles or on small respiratory droplets that may become aerosolized when people sneeze, cough, laugh, or exhale.

There are the choice c and d to Help please I have no time

Answers

Answer:

I think it's c (if y is chloroplasts)

16. What explanation can be used to describe the test tube shown?
5 points
A. Water is polar and oil is polar therefore the substances will not mix.
B. Water is nonpolar and oil is nonpolar therefore the substances won't mix.
C. Water is nonpolar and oil is polar therefore the substances will not mix.
D. Water is polar and oil is nonpolar therefore the substances will not mix.

Answers

Answer:

Water is polar and oil is nonpolar so the substances won't mix.

Explanation:

Water is polar covalently bonded within the molecule. This unequal sharing of the electrons results in a slightly positive and a slightly negative side of the molecule. oils are nonpolar, so they will remain separate from molecules of a polar solvent such as water.

What part of the body system is that

Answers

this is the excretory system

Answer:

Urinary System

Explanation:

The bladder and kidneys are there

Small aquatic organisms, such as coral, are the producers of the ocean.

Answers

Answer:

True

Explanation:

Primary Producers: Primary producers in a coral reef ecosystem include plankton, sea weeds and sea grasses. All of these organisms are photosynthetic organisms that get their energy from the sun.

Answer:

False

Explanation:

the Coral is not a producer, but rather a secondary consumer, in order to be a producer of an organism must be able to carry out photosynthesis.

Pick any 2 organ systems in the human body and explain how they work together
in order to keep the body in homeostasis. Make sure to name both systems,
explain each system's main functions, and describe how they work together to
keep an important part of the body in balance.

Answers

Answer:If you were a single-celled organism and you lived in a nutrient-rich place, staying alive would be pretty straightforward. For instance, if you were an amoeba living in a pond, you could absorb nutrients straight from your environment. The oxygen you would need for metabolism could diffuse in across your cell membrane, and carbon dioxide and other wastes could diffuse out. When the time came to reproduce, you could just divide yourself in two!

However, odds are you are not an amoeba—given that you're using Khan Academy right now—and things aren’t quite so simple for big, many-celled organisms like human beings. Your complex body has over 30 trillion cells, and most of those cells aren’t in direct contact with the external environment.^1

1

start superscript, 1, end superscript A cell deep inside your body—in one of your bones, say, or in your liver—can’t get the nutrients or oxygen it needs directly from the environment.

How, then, does the body nourish its cells and keep itself running? Let's take a closer look at how the organization of your amazing body makes this possible.

Explanation:

Organelles are structures within the cell that perform important functions. Which of the following correctly matches the
organelle with its relationship to the whole cell?

Answers

Answer:

mitochondria: powerhouse of the cell

Ribosomes: the places where proteins are synthesized in our cells. 

nucleus houses DNA;controls cell

Vacuole: holds waste and fluids from cell

Ribosomes: tiny organelles that contain RNA and specific proteins within the cytoplasm. 

Explanation:

Organelles make up the subunits of a cell.  There are numerous each with their own function.  

There are  various cell organelles that play an essential function these are as follow:

MitochondriaNucleusChloroplastEndoplasmic reticulumGolgi bodiesRibosomePeroxisome

What is the different role of cell organelles?

Mitochondria: Generates energy (ATP) for the biochemical reaction.

Nucleus: Responsible for the synthesis of mRNA, rRNA, tRNA and DNA.

Chloroplast: responsible for Photosynthesis by using sunlight in plant cells.

Endoplasmic reticulum: carry Protein(RER) and lipid synthesis(SER).

Golgi bodies: play role in protein sorting, transporting and trafficking.

Ribosome: two types of ribosomes are present in the cell-free ribosome and membrane-bound ribosomes, responsible for the synthesis of protein.

Peroxisome: play role in fatty acid oxidation and metabolism.

Thus, all these organelles play important functions in cells.

To learn more about cell organelles click here:

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what materials make up the cell membrane

Answers

Answer:

Lipids, Proteins, and carbohydrates

Explanation:

I did this once and I got it right, I hope you get it right too

Answer:

the material that makes up the membrane cell is the phospholipids, cholesterol, proteins, and carbohydrates.

Explanation:

CAN I HAVE Brainiest p.s. please

How many neutrons are in a nucleus of an atom that
has an atomic mass of 16 and an atomic number of

Answers

Answer:

4

Explanation:

Modeling the Equation of Cellular Respiration
Although cellular respiration involves many steps, the Which substances would complete the equation that
whole process can be represented by a single equation models the overall process of cellular respiration?
A+B-C + D + E
A
B:
C:
D
E:
Intro"

Answers

The equation for cellular respiration is in the picture

A= C6 H12 O6
B= 6O2
C= 6Co2
D= 6H2 0
E= ATP

Hope this helps! Have a great day!! :)

Answer:

A: glucose

B:oxygen

C: carbon dioxide

D: water

E: ATP

Explanation:

i did it on edge

What is mitosis?
what are the stages of mitosis?
Why do cells carry out mitosis??

WILL GIVE BRAINLIEst!!!

Answers

1. mitosis is a type of cell division that results in two daughter cells.

2. some phases could be metaphases, prometaphases, and anaphases.

3. during meiosis, the cells needed for sexual reproduction divide to produce new cells called gametes.

Big Question:How is energy/matter transferred throughout an ecosystem?​

Answers

Answer:

Food webs can transfer energy because the proteins from an animal can go on, this benefits ecosystems.

how does newtons law of universal gravitation apply to earth and the moon

Answers

Newton proved that the force that causes, for example, an apple to fall toward the ground is the same force that causes the moon to fall around, or orbit, the Earth. This universal force also acts between the Earth and the Sun, or any other star and its satellites. Each attracts the other.

Which occurs during digestion?

The mouth only allows for physical digestion.
The mouth only allows for chemical digestion.
Chemical digestion prepares the food for physical digestion.
Physical digestion prepares the food for chemical digestion.

Answers

Answer:

Physical digestion prepares the food for chemical digestion.

Answer:

D

Explanation: Physical digestion prepares the food for chemical digestion.

If
there were suddenly no sunlight
reaching Earth, how would this
affect the ability of plants to
produce carbohydrates?

Answers

since this means it wouldn’t receive sunlight, it would no longer have the ability to create food or carbohydrates for itself and would eventually die.

As we know that plant needs sunlight for performing the process of photosynthesis and by the process of photosynthesis produce food and if there is no sunlight than plant will not be able to produce sunlight and this will affect the ability of plant to produce carbohydrate.

What is photosynthesis?

Green plants contain chlorophyll and they prepare there own food in the presence of sunlight and the process is known as photosynthesis. In the process of photosynthesis light  energy converted into chemical energy.

Carbohydrates is defied as that contains biomolecule that contains carbon hydrogen and oxygen in a ratio of 2:1. Carbohydrates are mane source of energy of the body they work as fuel for the brain, kidneys central nervous system and heart muscle.

[tex]Cn(H2O)n[/tex]is the basic formula for all carbohydrates . But this formula have limitation i.e it applies where same amount of carbon and water are use.Initially the terms carbohydrate was used to describe compounds that have really contains carbohydrates.  Because they had simple formula[tex]CH20.[/tex]

Therefore, As we know that plant needs sunlight for performing the process of photosynthesis and by the process of photosynthesis produce food and if there is no sunlight than plant will not be able to produce sunlight and this will affect the ability of plant to produce carbohydrate.

Learn more about photosynthesis here:

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#SPJ2

YALL THIS IS SO FREAKING HARD
WHAT DAY IS IT?

Answers

Answer:

Today is Monday, November 16, 2020.

It can be written as 11/16/2020 or 11/16/20.

It is the 321st day of the year out of 365 days.

best answer gets brainliest

Answers

that is epic my dude

ILL MARK YOU BRAINIEST ASAP!!!I DONT GET THIS UGHHHHHH!!!!! SOME BIO QUESTION ON MITOSIS....IMAGE BELOW

Answers

Answer:

a anaphase

Explanation:

prophase metaphase Anaphase telophase the cytokenisis

Answer:

a anaphase

Explanation:

Lipase is best classified as which type of protein?

Answers

It would be best classified as an enzyme!

if a mother has type A blood and the father has type AB blood what is the probability of the offspring having type O blood? 75% 50% 0% 100% 25%

Answers

Answer:

100 percent

Explanation:

because A or ab can produce o

What best explains how they should complete the table?

with “Inside the nucleus,” because the particle is a proton
with “Inside the nucleus,” because the particle is a neutron
with “Outside the nucleus,” because the particle is a proton
with “Outside the nucleus,” because the particle is an electron

Answers

Explanation:

Protons and neutrons are subatomic particles found  in the atom of any substance.

These particles collectively determines the mass number of the atom.

Protons are positively charged particles found in the nucleus of an atom. Neutrons do not carry any charges and are also found in the nucleus. Electrons are negatively charged particles.

Electrons occupy the extranuclear space of an atom.

Answer:

Depends, you have to give us a table, let me explain how to answer this.

Explanation:

“Inside the nucleus,” because the particle is a proton

For this to be true, it has to have a mass (amu) of 1 and it has to have a positive charge

“Inside the nucleus,” because the particle is a neutron

For this to be true, it has to have a mass (amu) of 1 and it has to have a neutral charge

“Outside the nucleus,” because the particle is a proton

This is instantly wrong because protons are located in the nucleus

“Outside the nucleus,” because the particle is an electron

For this to be true, it has to have a mass (amu) of 1/2000 and it has to have a negative charge

Which of these organisms have no seeds and no specialized tissues?
sequoia trees
orange trees
club moss
liverworts

Answers

Answer:

Liverworts

Explanation:

a small flowerless green plant with leaf-like stems or lobed leaves, occurring in moist habitats. Liverworts lack true roots and reproduce by means of spores released from capsules.

What name is given to a factor which is preventing any increase in photosynthesis?

Answers

Answer: A limiting factor

Explanation: A limiting factor is simply anything in short supply that prevents photosynthesis occurring at its maximum rate. Three factors can limit the rate of photosynthesis: light intensity, carbon dioxide concentration and temperature.

Any factor that prevents any increase in photosynthesis is known as a LIMITING FACTOR.

In photosynthesis, a limiting factor is defined as a factor/agent that constrains photosynthetic activity.

The most important factors capable of limiting the rate of photosynthesis include light, carbon dioxide (CO2) level and temperature.

For example, photosynthesis cannot take place without light, which is absorbed by chlorophyll pigment molecules to start photosynthesis.

In conclusion, any factor that prevents any increase in photosynthesis is known as a LIMITING FACTOR.

Learn more in:

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what do a grasshopper, a carrot, and a chicken have on common​

Answers

Answer:

The food chain/food web

Explanation:

What is meningitis? (ANATOMY)

Answers

Answer:

Inflammation of brain and spinal cord membranes, typically caused by an infection.

Meningitis is usually caused by a viral infection but can also be bacterial or fungal. Vaccines can prevent some forms of meningitis.

Symptoms include headache, fever, and stiff neck.

Depending on the cause, meningitis may get better on its own, or it can be life-threatening, requiring urgent antibiotic treatment.

Explanation:

Answer:

Inflammation of the brain and spinal cord membranes, typically caused by an infection.

Explanation:

Meningitis is usually caused by a viral infection but can also be bacterial or fungal. Vaccines can prevent some forms of meningitis.

Symptoms include headache, fever, and stiff neck.

Depending on the cause, meningitis may get better on its own, or it can be life-threatening, requiring urgent antibiotic treatment.

- <3, xo,nm

Determine the genotype of each parent dog and write them below.
Curly fur = F
Straight fur = f
Blonde fur = B
Brown fur = b
Genotype of parent dog 1: (???)
Genotype of parent dog 2: (???)

Answers

Answer:

Genotype of parent dog 1: FfBb

Genotype of parent dog 2: FfBb

Explanation:

The following four ears of corn were taken from separate plants. Each kernel represents an offspring. The kernels on the four ears were counted for the color trait (purple or white) and/or sweetness trait (starchy or sweet). The data gave these phenotypic ratios for the four ears:

Ear #1 – 3 purple : 1 white
Ear #2 – 3 starchy : 1 sweet
Ear #3 – 9 purple, starchy : 3 purple, sweet : 3 white, starchy : 1 white, sweet
Ear #4 – 1 purple : 1 white

Which traits are recessive?

Answers

Answer:

the answer is white and sweet, i just took the quiz

Explanation:

The phenotypic ratio provides information about how many genes are involved in the cross, which is the dominant trait and which is the recessive trait. In the exposed example, white and sweet are the recessive traits.

-------------------------------

By looking at the phenotypic ratio of the progeny, you can tell which trait is the dominant one and which is recessive.

Let us assume two diallelic genes, each coding for one trait.

Let us also say that these genes assort independently -they are not linked-, and they do not interact with each other.

When we are only considering one single gene,

the phenotypic ratio after crossing two heter0zyg0us individuals is 3:1. In these situations, we expect to see 3/4 of individuals expressing the dominant trait, and 1/4 expressing the recessive trait.

the phenotypic ratio after crossing a heter0zyg0us individual with an h0m0zyg0us recessive one is 1:1. We expect to see 2/4 of the progeny expressing the dominant trait and 2/4 the recessive trait.

When we are only considering two genes simultaneously, we expect to find the following phenotypic ratio 9:3:3:1

9/16 individuals expressing both dominant traits3/16 individuals expressing one dominant trait and one recessive trait1/16 individuals expressing both recessive traits.

Now let us analyze each Ear,

Ear #1 – 3 purple : 1 white

Only the color trait is considered. The phenotypic ratio is 3:1Two heter0zyg0us individuals must be involved in the cross3/4 are purple and 1/4 is whiteDominant trait: purpleRecessive trait: white

Ear #2 – 3 starchy : 1 sweet

Only the sweetness trait is considered. The phenotypic ratio is 3:1Two heter0zyg0us individuals must be involved in the cross3/4 are starchy and 1/4 is sweetDominant trait: starchyRecessive trait: sweet

Ear #3 – 9 purple, starchy : 3 purple, sweet : 3 white, starchy : 1 white, sweet

Both traits are considered. The phenotypic ratio is 9:3:3:1Two dihybrid individuals must be involved in the cross9/16 are purple and starchy, 3/16 are purple and sweet, 3/16 are white and starchy, and 1/16 is white and sweetDominant trait: purple and starchyRecessive trait: white and sweet

Ear #4 – 1 purple : 1 white

Only the color trait is considered. The phenotypic ratio is 1:1One heter0zyg0us individual and one h0m0zygous recessive individual must be involved in the cross2/4 are purple and 2/4 are whiteDominant trait: PurpleRecessive trait: White

The recessive traits are white color and sweet taste.

------------------------------------------

Related link: https://brainly.com/question/3840678?referrer=searchResults

PLEASEEE HELP!!!!! The position of Earth in space compared with other bodies, such as the sun and moon, determines many characteristics of the hydrosphere. Describe how it causes the following:
a. The existence of liquid water on Earth (2 points)
b. Tides (2 points)

Answers

The answer is A

Explanation

The liquid is like a existence but it is like a tides but more detail

A net force of 40 N south acts on an object with a mass of 20
kg. What is the object's acceleration?
(Hint: Use the formula a = .)
m
0
A. a = 2 m/s2 south
B. a = 20 m/s 2 north
C. a = 4 m/s 2 north
D. a = 10 m/s2 south
SUBM

Answers

Answer: I’m really unsure but is the answer 2 m/s2 the answer y’all are looking for?

Explanation: don’t know if I’m right or not (please tell me if I’m am) but all I can say right now is have a blessed day

An edit: I was right I got it right on the quiz

Based on the graph, what does the point (1, 300) represent?

Answers

Answer:

1,3

Explanation:

mark brainiest

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