17 Based on the graph, what is the approximate number of radioactive atoms of Isotope X that are
present when 8 hours of decay has occurred?
(A) 90
(B) 115
(C) 155
(D) 200

17 Based On The Graph, What Is The Approximate Number Of Radioactive Atoms Of Isotope X That Arepresent

Answers

Answer 1
The answer to the question is c

Related Questions

How can the application of insecticides and herbicides affect an individual’s health? a. Insecticides and herbicides can potentially contaminate foods. b. Insecticides and herbicides increase the disease rate of agricultural plants. c. The application of herbicides and pesticides reduces the vitamin content of crops. d. Herbicides and insecticides increase the health value of crops by adding necessary nutrients.

Answers

Answer: A. Insecticides and herbicides can potentially contaminate foods.

Answer:

the answer is A

Explanation:

edge 2021

The service box is an area on the court that 1 point the person serving must stand in. the ball must land in to be a playable serve. the person returning the serve must be standing in before a server can serve ​

Answers

Answer:

Both players on the serving doubles team have the opportunity to serve and score points until they commit a fault *(except for the first service sequence of each new game).

The first serve of each side-out is made from the right-hand court.

If a point is scored, the server switches sides and the server initiates the next serve from the left-hand court.

As subsequent points are scored, the server continues switching back and forth until a fault is committed and the first server loses the serve.

When the first server loses the serve the partner then serves from their correct side of the court (except for the first service sequence of the game*).

The second server continues serving until his team commits a fault and loses the serve to the opposing team.

Once the service goes to the opposition (at side out), the first serve is from the right-hand court and both players on that team have the opportunity to serve and score points until their team commits two faults.

In singles the server serves from the right-hand court when his or her score is even and from the left when the score is odd.

Explanation:

The main function of cell respiration is to produce A. glucose B. NADH and FADH2. C. CO2. D.mitochondria E. ATP.​
Again No links thank you!

Answers

shhsshshshshshshhshshs

In North America, the eastern spotted skunk mates
in late winter, and the western spotted skunk mates
in late summer. Even though their geographic
ranges overlap, the species do not mate with each
other. What most likely prevents these two species
from interbreeding?
A. habitat isolation
B. gametic isolation
C. geographic isolation
D. reproductive isolation

Answers

The answer is gonna be B

Reproductive isolation is a mechanism through which species do not get to interbreed. Option D. reproductive isolation

What is reproductive isolation?

This is a mechanism through which different species or populations do get to mate and produce fertile offspring. This mechanism allows the accumulation of genetic differences and favors speciation.

There are different barriers that inhibit or interrupt the genetic flow between different species.

Reproductive barriers prevent mating between two or more species. There are two types of barriers,

prezygotic ⇒ that avoids fertilization between individuals of different species, postzygotic ⇒ that impedes the zygote to develope and reach the adult stage.

Pre-copulatory o pre-ziygotic:

• Ecological or by habitat isolation;

Seasonal or temporal;

• Séxual o ethologic;

• Mechanic;

• Gametes incompatibility.

Postzygotic mechanisms or barriers include

• Hybrid inviability,

• Hybrid sterility,

• Cytoplasmic interactions.

In the exposed example occurs a seasonal difference between the mating period of the eastern spotted skunk and the western spotted skunk.

Probably, if both of them would mate during the same season and in the same area, they could reproduce.

However, since their mating season differs, individuals from each species do not get to cross and hence, produce fertile offspring.

Option D. reproductive isolation is what most likely prevents these two species from interbreeding

You will elarn more about reproductive isolation at

https://brainly.com/question/3089401

https://brainly.com/question/3869848

https://brainly.com/question/15875635

Plz help me well mark brainliest if you are correct!

Answers

Answer:

The answer is gravity.

land where it is possible to grow crops is called
A.organic land
B.agricultural land
C.vegetative land
D.All of the above

Answers

D. All of the above

PLEASE HELP !! ILL GIVE 40 POINTS ; PLUS BRAINLIEST !! DONT SKIP ANSWER.

Answers

Answer:

daddy ;-0

Explanation:

Answer:

Your Answer is B

Explanation:

By burning coal and fossil fuel and  natural gas, it causes in the air

Should humans use synthetic materials that have natural material that is the same chemically? PLZ I NEED THIS NOW

Answers

Answer:

It Depends . Like Some People Use Fake Skin For Tattoos , Made To Practice Stitches , Or Injections .. It Just Really Depends On What You Are Doing If This Helps ..

Which of the following is a 5-carbon sugar?
Glucose
Fructose
Ribose
Sucrose​

Answers

Answer:

ribose

Explanation:

Answer:

Ribose & deoxyribose sugars. Ribose is a single-ring pentose [5-Carbon] sugar.

What is correct regarding trans fatty acids

Answers

Answer:

They raise LDL and lower HDL

Explanation:

i need some help on this.............

Answers

Answer:

a) Beaver-dam buildings → (iii) Pond floods

b) Forest fire → (i) New plants can grow because of an increase in sunlight on the forest floor

c) Lack of rainfall  →  (ii) Zebras migrate farther to find water holes

d) Invasive water plants arrive →  (iv) Sunlight is blocked for native seagrasses

e) Grasshopper outbreaks  →   (v) Crops are wiped out along the prairie

f) Coyote disease decreases the population →  (vi) Mice population explodes

Explanation:

a) Beaver-dam buildings → (iii) Pond floods

This is an example of how some species might produce damages in ecosystems. Beavers are known for their dams, where they hide from predators, find shelter, reproduce, and feed. With time, and as the beaver population grows, these dams get bigger each time. These animals keep cutting down trees and covering some wider areas that were inhabited previously by other species. The landscape changes, these areas get flooded permanently, most vegetation dye, the soil properties get altered, and just a few species can keep living there. The ecosystem changes.

b) Forest fire → (i) New plants can grow because of an increase in sunlight on the forest floor

This is an example of biological succession. Stable forests characterize as having big old trees that compete for light developing big canopies at heights. Poor light reaches the ground and allows some smaller species to grow. When a fire occurs, some of these trees might fall or disappear. These fire events open windows in the forest through which sunlight directly reaches the ground. Many new species can germinate and grow. There occurs a renovation of vegetable species in the forest and the consequent renovation of other living forms.  

c) Lack of rainfall  →  (ii) Zebras migrate farther to find water holes

It is not unusual that some species need to migrate looking for food or water. In certain areas, seasonal differences are very sharp, and while some periods characterize as producing plenty of food and water, some others characterize as lacking them, dry seasons especially. Animals develop different strategies to face these moments. Zebras need to migrate to find a new source of water to ensure proper hydration.

d) Invasive water plants arrive →  (iv) Sunlight is blocked for native seagrasses

A very known global environmental problem is the damage caused by invasive species. In a few words, exotic species arrive in a new area out of their native distribution range, establish, grow, adapt, and reproduce. These exotic species turn into invasive species when they overgrow, sharply increasing their reproductive rate. At this point, interaction with native species becomes harder, competing for resources such as space, light, food, shelter, water, among many others. Invasive species become such a good competitor that end by displacing native species. In the exposed example, invasive water plants arrive, and their population overgrows. They compete for light with native seagrasses and end by blocking it for them.

e) Grasshopper outbreaks  →   (v) Crops are wiped out along the prairie

This is an example of the prey-predator relationship. In this case, grasshoppers are the predators, and crops are acting as the prey. Whenever one of the population increases in size, the other one follows this increase, causing the decrease of the first one. When the first population decreases, the second one also decreases. In this example, grasshopper outbreaks, meaning an increase in predation rate over crops. Many more individuals are feeding on the crops, causing more damages to the plants´ population. Crops do not have enough time to recover, so they are wiped out.

f) Coyote disease decreases the population →  (vi) Mice population explodes

This is also an example of the prey-predator relationship. In this case, coyotes are the predators, and mice are acting as the prey. As coyotes are affected by the disease, which causes a decrease in their population size, mice seem to be favored, as they are not predated. They have enough time to recover as a population and increase in size. Coyotes´population decreases in size, so there are many fewer individuals feeding on mice, and hence, the mice population increases very fast. It explodes.

Which 4 body sydtems interact to allow a person to sneeze

Answers

Answer:

I think four body system is Muscular, immune, nervous, respiratory.

Explanation:

the function of the secretion​

Answers

Answer:

Secretion, in biology, production and release of a useful substance by a gland or cell; also, the substance produced. In addition to the enzymes and hormones that facilitate and regulate complex biochemical processes, body tissues also secrete a variety of substances that provide lubrication and moisture.

Explanation:

74. As layer upon layer of sediments are deposited, the process of the presses them
together.

Answers

Answer:

GO GET BOY

Explanation:

what gene combination will have 50% chance of occurring if two heterozygous black and chickens are mated 
please answer!!

Answers

It will be the one with capital and lowercase for example you will get (using Hh alleles for example)

(HH, Hh, Hh, hh)

So it will be the 2nd and 3rd combo, the heterozygous dominant it will have one dominant allele and one recessive

what does Risk Management mean

Answers

Answer:

(in business) the forecasting and evaluation of financial risks together with the identification of procedures to avoid or minimize their impact.

Explanation:

Answer:

Risk management mean managing the risks you take if financially, biologically, and in life. Indentifying, assesing,  and controlling risks.

Identify the existence of Neutrons.

Answers

The atomic number (the number of protons) did not equal the atomic weight.

Plz help asap 1 and 2 plz

Answers

Answer:

1- Ans:Molecules

2- Ans:Atoms

Which limiting factor is this adaptation a response to

Answers

Answer:

Answe

Explanation:

A limited factor that causes adaptation is the loss of habitat,food,or new species.

How did black leaders and abolitionists embody the democratic principles and ideals of liberty and equality in their actions?

Answers

The Civil Rights Movement did not suddenly appear out of nowhere in the twentieth century. Efforts to improve the quality of life for African Americans are as old as the United States. By the time of the American Revolution in the late eighteenth century, abolitionists were already working to eliminate racial injustice and bring an end to the institution of slavery

What might be limiting resource for sharks in their ecosystem

Answers

Answer:

Sharks keep ocean ecosystems in balance

Sharks limit the abundance of their prey, which then affects the prey of those animals, and so on throughout the food web. Because sharks directly or indirectly affect all levels of the food web, they help to maintain structure in healthy ocean ecosystems. HOPE THIS HELPS!!!!!!!!

Explanation:

Please Help Me i need a good grade!
FAST!!!!!!

Answers

Answer:

it's the second one/B because it's the only one that is correct :)

What can HIV become? (write it out)

Answers

HIV came become AIDS (acquired immunodeficiency syndrome) if not treated.

Write the relationship between cells, tissue and organs in human body.

(plzzzzz answer correctly)

Answers

Answer:

Cells make up tissues, tissues make up organs, and organs make up organ systems. The function of an organ system depends on the integrated activity of its organs. For instance, digestive system organs cooperate to process food.

Explanation:

When a Pp-genotype plant is bred with a pp-genotype plant, what percentage of the offspring is likely to have white flowers?

Answers

The answer is 25% if the big P stands for white

Explain the relationship between the Fossil Record and the Theory of Evolution.

(3 or more sentences)

Answers

Image result for Explain the relationship between the Fossil Record and the Theory of Evolution.
Fossils are important evidence for evolution because they show that life on earth was once different from life found on earth today. Paleontologists can determine the age of fossils using methods like radiometric dating and categorize them to determine the evolutionary. Hope this helps! Mark brainly pls!

What type of invertebrate are robber crabs

Answers

Answer:

Arthropods

Explanation:

Robber crabs belong to the Phylum Arthropoda of the invertebrates in the Kingdom Animalia.

anyone know this I don’t get the question

Answers

Answer: 5.000/ml

Explanation: density = mass/volume= 50/ 100=1/2 or 0.5 g/ mL

Give a scenario in which a new ecosystem would be created

Answers

global warming. if the world pollutes too a certain level of extreme , a new ecosystem would do some good

LO NECESITO URGENTEMENTE, PORFAVOR AYUDENME INSTRUCCIONES: lee el siguiente texto y completa las ideas con las siguientes palabras, (pueden sobrar algunas): mitótico, meiótico, haploide, somáticas, unión, gametos, fecundación, genética, variación, iguales, diferentes.


Reproducción sexual

La reproducción sexual consisten en la ___________ de dos gametos uno femenino y otro masculino, para formar un nuevo individuo con características provenientes de ambos progenitores. Los ___________ son células especializadas que se forman por un proceso __________ y tiene en su núcleo la mitad de la información __________ de un organismo, por lo que reciben el nombre de células ___________ de manera que cuando se une sus cromosomas se forman células diploides característico de la especie. La característica más importante de este tipo de reproducción es la ___________ genética que implica que los descendientes tengan características de sus dos progenitores, por lo que son ___________ a ellos. El proceso en el que se une las células sexuales se le conoce como ___________. En los animales esta pude ser interna o externa.

Answers

Answer:

La reproducción sexual consisten en la unión de dos gametos uno femenino y otro masculino, para formar un nuevo individuo con características provenientes de ambos progenitores. Los gametos son células especializadas que se forman por un proceso meiótico y tienen en su núcleo la mitad de la información genética de un organismo, por lo que reciben el nombre de células haploides de manera que cuando se une sus cromosomas se forman células diploides característico de la especie. La característica más importante de este tipo de reproducción es la variación genética que implica que los descendientes tengan características de sus dos progenitores, por lo que son diferentes a ellos. El proceso en el que se une las células sexuales se le conoce como fecundación. En los animales esta pude ser interna o externa.

Explanation:

Los gametos (óvulos y espermatozoides) son células germinales especializadas que se desarrollan a partir de un proceso llamado gametogénesis (espermatogénesis en machos y ovogénesis en hembras). El proceso de gametogénesis implica un tipo de división celular llamado 'meiosis' donde la cantidad de cromosomas se reduce a la mitad. En humanos, el número cromosómico diploide (2n) de 46 cromosomas se reduce a un número haploide (n) de 23 cromosomas. La fecundación es el proceso por el cual los gametos se fusionan durante la reproducción sexual para producir un cigoto diploide. En la reproducción sexual, el aumento de la variación genética en la progenie es un resultado de tres procesos diferentes: la unión aleatoria entre gametos durante la fecundación, la distribución independiente de los cromosomas durante la gametogénesis y el entrecruzamiento (recombinación o crossing over) entre cromátidas de cromosomas homólogos durante la meiosis. Finalmente, en animales, la fecundación puede ser interna, la cual se produce mediante la unión de los gametos dentro del cuerpo de la hembra (por ejemplo, gallina, leona, cebra, etc.), o fecundación externa, donde la fusión de gametos se produce en el ambiente externo (por ejemplo en peces, sapos, ranas, etc.).

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