how many half-lives occur in 4 hours?
A. 1
B. 2
C. 3
D. 4

Answers

Answer 1
I believe the answer is C

Related Questions

Question 14 plz help due in 2 min will mark brainlest

Answers

Answer:

the frequency of the wave is 2 hertz

Explanation:

Frequency is defined as the number of cycle of waves that occur in one second.

Here the total number of cycle is equal to 10

The total time in which these 10 cycles occur is equal to 5 seconds

Now, mathematically frequency is equal to

where  is equal to number of cycles

and t is time

Putting the given values in above equation we get -

hertzs

Which three steps describe how an animal obtains and uses energy for growth?
First, an animal eats another organism. Then, food is built into larger molecules. Next, the animal's cells use
molecules to make new cells.
First, food is built into larger molecules. Then, the animal eats another organism. Next, the animal's cells use
molecules to make new cells.
O First, an animal eats another organism. Then, food is broken down into smaller molecules. Next, the animal's cells
use molecules to make new cells.
First, food is broken down into smaller molecules. Then, the animal eats another organism. Next, the animal's
cells use molecules to make new cells.

Answers

Use the process of elimination, be sure to read each answer thoroughly even if you are confused at first. Read each one at least twice just to see if your brain understands it the second time.

First, an animal eats another organism. Then, food is built into larger molecule. Next, the animal's cells use molecules to make new cells. ELIMINATED

First, food is built into larger molecules. Then, the animal eats another organism. Next, the animal's cells use molecules to make new cells use molecules to make new cells. ELIMINATED

First, an animal eats another organism. Then, food is broken down into smaller molecules. Next, the animal's cells use molecules to make new cells. THIS ONE!!!!!!!!!

First, food is broken down into smaller molecules. Then, the animal eats another organism. Next, the animal's cells use molecules to make new cells. ELMINATED

Use the process of elimination, be sure to read each answer thoroughly even if you are confused at first. Read each one at least twice just to see if your brain understands it the second time.

First, an animal eats another organism. Then, food is broken down into smaller molecules. Next, the animal's cells.First, food is broken down into smaller molecules. Then, the animal eats another organism. Next, the animal's cells use molecules to make new cells.First, food is built into larger molecules. Then, the animal eats another organism. Next, the animal's cells use molecules to make new cells.

How does energy affect growth?

The energy consumption has a high favourable correlation with economic growth. Whether economic growth takes primacy over energy consumption or energy consumption glorifies the economic growth have been studied in a number of studies yet practical proof is mixed and conflicting.

Thus, these are the steps.

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1. What kind of boundary or zone is shown in the image below?
O A Subduction zone
O B. Divergent boundary
O C. Collision zone
O D. Transform boundary

Answers

Divergent boundary because it’s spreading apart.

Divergent boundary is the type of boundary or zone depicted in the image.

What is divergent boundary?In plate tectonics, a diverging boundary, also known as a divergent plate boundary, is a linear structure that exists between two moving tectonic plates.Rifts are formed by divergent boundaries within continents and develop into rift valleys over time.A diverging border is formed when two tectonic plates diverge.Earthquakes frequently occur along these boundaries as magma (molten rock) rises from the Earth's mantle to the surface and solidifies to form new oceanic crust. Divergent is the movement of two plates away from each other. Molten mantle rock erupts along the opening, forming new crust. The earthquakes that occur along these zones, known as spreading centers, are small.

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which describes the process

Answers

Answer:

D. Crossing over which alleles are exchanged

Explanation:

Crossing over or recombination is the process by which segments of a chromosome (alleles) are exchanged between the non-sister chromatids of two homologous chromosomes. The process of crossing over solely occurs during meiotic division.

According to the image attached to this question, a pair of homologous chromosome (one black, one red) are shown. The alleles of two non-sister chromatids i.e. non-identical chromosomes are exchanged in such a way that one part of the first chromosome is present in the second and vice versa. This process is called CROSSING OVER.

Can someone help me pleasee:(

Answers

Answer:

Add some iodine to a beaker containing the sample. If starch is present, the colour of the solution will turn blue-black.

Explanation:

what process takes oxygen into cells

Answers

Answer:

Cellular Respiration

Explanation:

In cellular respiration, animals take in O2 (oxygen) and exhale CO2 (carbon dioxide).

All you need is in the photo ​



ASAP

Answers

Answer:

step 2.

looks like this is a MAPS test and you arent supposed to be asking for Help on these

A book on a table has _______ potential energy than a book on a chair because the table is ________ off the ground.

Answers

Answer:

A book on a table has more potential energy than a book on a chair because the table is higher off the ground.

Explanation:

Feel free to correct me If i'm wrong :)

Answer:

ttttuyyyyyyyugtvyzj6dbydbxubfydkaidbghg

How did the disappearance of the sea otters affect the coastal marine ecosystem?

Answers

It provided the prey of the sea otters to be able to thrive more and The predators of the otters had to find new food sources

What happened to the average lifespan during that time from 1963-2012?

Answers

Answer:

69.92 years

In 1963 the life expectancy in United States decreased to 69.92 years. That year, the life expectancy for women was 73.4 years and for men 66.6 years. United States's position worsened with respect to the 182 countries we publish said data, dropping from the 18th in 1962 to 22th in 1963.

Explanation:

A group of your classmates want to see if fertilizer improves plant growth. They set up the following experiment: They planted three different types of plant seeds in three different types of soil. They placed all the planted seeds in either a dark or a light environment. Each plant was given the same amount of fertilizer. In a complete sentence, explain whether or not you think this is a good scientific design. What are two things that you could suggest for them to change in order to improve their experiment?

Answers

Answer:

Since they are trying to test if fertilizer helps, no sunlight, they should give the plants the same amount of light. They should also give the plants different amounts of fertilizer.

P.S. Can you give me Brainliest, please?

8. Fish have a bony structure called a
attached, supporting the gill structure.
to which the gill filaments are

Answers

Answer:

Each gill is supported by a gill arch – a bony structure that is oriented vertically on the side of a fish, just behind its head. The gill arch provides the support to hold a number of comb-like structures called gill filaments.

Do you label a container before or after putting a substance in the container?

Answers

Answer:

yes so you don't get confused on what the substance is

Explanation:

eg 2021!!!!!

Pretty sure it’s before

Bree saw a picture of two plates spreading and wondered what formed in between the two plates. What is the name for the area between the two diverging plates in this picture?

Illustration of two plate boundaries moving in opposite direction and magma flowing upward creating a step-like indentation on top.

A. transform boundary
B. ocean trench
C. rift valley
D. subduction zone

Answers

Answer:

rift valley

Explanation:

when two plates spread apart or diverge they create a valley

The name for the area between the two diverging plates in this picture  rift valley.

What is rift valley?

A system of intra-continental ridges passes through Kenya from north to south, including the Great Rift Valley.

It is a portion of the Gregory Rift, the eastern branch of the East African Rift, which extends northward into Ethiopia from where it begins in Tanzania to the south. The Arabian, Nubian, and Somalian plates' interactions resulted in the formation of the "Kenyan Dome," a geographical upwelling.

It was once thought to be a component of the "Great Rift Valley," which stretched from Syria to Madagascar. The valley's majority was once part of the Rift Valley Province.

Therefore, The name for the area between the two diverging plates in this picture  rift valley.

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A dam is built in a remote area to provide electricity to nearby towns.

What is an unlikely effect of the dam? help!!!

Answers

Answer:    option D decreased aquatic life upstream from warmer temperatures.

Explanation:

Answer:

increased fertility of the land downstream

Explanation:

I did the test

Can some please help? I’ll give brainliest

Answers

Answer: I need the points sorry

Me to lol I need pointssssss

PLEASE HELP MEE
According to the food webs, which two organisms do not exhibit a competitive relationship over resources?
A. bison and elk
B. eagle and black bear
C. elk and beaver
D. beaver and bison

Answers

A bison and elk

i think
beaver and bison dont have the same resource so there is no conpetitive relationship

PLEASE ONLY ANSWER IF YOU KNOW THE ANSWER!!! Will give brain and 5 stars( LOOK AT BOTH PICTURES)

Answers

Ok. So I’ll do the first scenario.

In the city of WhiteBloodCell, harmful bacteria is threatening the city. So to the rescue comes Lysosomes, the cell engulfing handy man. As it destroys the bacteria, it realizes that the villain deserves a second chance. So the broken parts of the bacteria are its weapons, amino acids. So the Lysosomes brings these to its colleague Ribosome. There, Rob the Ribosome assemble these amino acids into a better, nicer protein. Those then are transferred to his friend Golgi apparatus. She modifies it further, packages it up nicely, and transports it out of the cell. Together, these heroes helped to save Organism from infection.

Hope that helps!
Englanda1

What serious illness currently
in the news has underwent a
mutation?

Answers

Answer:

C0vid

19 I'm guessing

Explanation:

Coronavirus. It had a mutation from England, South America, and Africa.

Scott has to memorize 25 words.He had memorized 15 out of 25 words.What will the answer's be in a fraction?

A 10\25

B 11\25

C 7\25

D 8\25

Answers

since he memorized 15, he has only 10 left. so it should be 10/25

Answer:

Read below

Explanation:

If they're asking for the remaining amount of words to memorize, he needs to memorize 10/15 words.

DNA and RNA are both nucleic acids made up of nucleotides,Which is not a difference between DNA and RNA?

Answers

DNA is the genetic code of the cell while RNA is basically the protein that is produced. DNA is a full set of genes while RNA is only half.

what is annuli and septa​

Answers

They are segments of an earthworm's body known as the annuli. it’s separated by transverse dividing walls known as a septa.

((SIMPLE QUESTION 15 POINTS))

A couple has 5 children. One dies after birth from a genetic disease caused by a lethal gene. The mother, the father, and 3 of the other children have this gene, but not the disease. Why don't they have the disease?

a)They only have one dominant lethal gene
b)They only have one recessive lethal gene
c)They have the same blood type
d)They have X-chromosome

Answers

Answer:

b

Explanation:

POSSIBLE
Has a waxy coat, has a Chloroplast, and is multicellular. This organisim belongs in which kingdom?
Plantae
Protista
Eubacteria

Answers

Answer:

Plantae

Explanation:

Delta and Alpha are the same distance from the equator, and they are both near the ocean. Using the information in the map, how does the air temperature of Delta compare to the air temperature of Alpha? Why?

Answers

The image of this question is missing, so i have attached it.

Answer:

Explained below.

Explanation:

From the image attached, we can deduce that;

- The air temperature of Delta will be warmer than Alpha.

- The reason is because the wind will push ocean water that's turning and following the coasts and thereby making energy to be transferred from the ocean to the air at Delta and also from the air to the ocean at Alpha.

Answer:

I am doing the same test as you, so it is D. warmer than Alpha. The winds push ocean water that turns and follows the coasts. A lot of energy is transferred from the ocean to the air at Delta, and only a little energy is transferred from the ocean to the air at Alpha.

Explanation:

CAN SOMEONE HELP ME ON 3

Answers

Answer:

The foxes would have brown fur all year long.

Explanation:

The foxes would have brown fur all year because the change in the environment will not occur. If the change not occur in the climatic conditions, then the foxes did not change the colour of the fur so the brown colour remains for all year long. The colour of fur changes when the change in climate occurs so if there is no change in the climate so change occur in fur colour of foxes.

What part of your brain connects to the spinal cord? A. Medulla B. Cerebrum C. Cerebellum D. Right hemisphere

Answers

Answer:

The cerebellum connects to the spinal cord.

Explanation:

Pls help! It’s Due today!!

Answers

Answer:

DNA is a double stranded molecule that belongs to a group of larger molecules (macromolecules) called NUCLEIC ACIDS.

Nucleic acids are formed by joining together many smaller molecules called NUCLEOTIDES.

Nucleotides consist of:

- Pentose sugar (pentagon)
- Phosphate group (circle)
- Nitrogenous (rectangle)

Forensic Science Question
While scientists have known of DNA's existence for much longer, until 1984 they didn't know that the DNA of each person differed
T/F?

Answers

Answer:

The statement is true

Explanation

the statement is wrong because the structure of DNA was discovered in 1953 by  James Watson and Francis Crick and they explained it very well. till 1985 everything about the structure of DNA was very well known and the scientist knew that the DNA of each person differs from each other.

Answer:

True!

Explanation:

Ever since many years before 1984, Scientists knew that DNA existed. In 1984, DNA was found to differ for each and every person.

(plus i put true on my test and got it right)

Hope this helped! :]

True or false

- our phenotype is solely determined by genotype.

help would be thankful:)

Answers

The answer to your question is : false
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