Answers
Answer:
A. 17,100
Explanation:
The half life of carbon-14 is around 5,700 years. When the shell contains 50% of its original carbon-14, 5,700 years have passed. 25% means another 5,700 years have passed, meaning 11,400 years in total have passed. 12.5% means another 5,700 years have passed, meaning 17,100 years have passed in total.
Related Questions
Describe the difference in how energy is transferred to producers and consumers
Answers
Answer:
Producers create their own energy using photosyntehsis. They absorb light and water to make glucose. Consumers have to eat, they can't make their own energy.
Explanation:
What are the characteristics of the outer planets? (Check all that apply)
Small
Rocky
Made of gas
Large
High density
Low density
Answers
Rocky , made of gas , low density , small
hope it is helpful to you
What is energy transformation
Answers
The only haploid cells in humans (with 23 chromosomes and no matching pairs) are:
A. sperm and egg cells
B. skin and muscle cells
Answers
Answer:
The only haploid cells in humans (with 23 chromosomes and no matching pairs) are:
A. sperm and egg cells
Question 10
What is missing from this food chain?
Grass > Grasshopper > Bird > Snake
A. Producer
B. Primary consumer
C. Secondary consumer
D. Decomposer
Answers
Answer:
D
Explanation:
In any food chain, the decomposers are an essential part, to decompose any dead thing. They don't go on the bottom or top, they are sorta to the side but are definitely on that chain.
where does the energy supplied by ATP. come from
Answers
Answer:
Glucose
Explanation:
Answer:
Glucose
Explanation:
Because glucose converts to ATP by the process of cellular respiration.
Which allele combination represents a female who is a carrier for an X-linked recessive disorder?
XRXr
XrXr
XRY
XrY
Answers
The allele combination XRXr represents a female who is a carrier for an X-linked recessive disorder.
X-linked recessive inheritanceFemales usually inherit two chromosomes X, while men inherit only one chromosome X (and one chromosome Y).
The inheritance of the chromosome X in females resembles mendelian inheritance because females have two X chromosomes.In this case, females having the genotype XRXr are carriers because lowercase letters denote the presence of the recessive allele.In conclusion, the allele combination XRXr represents a female who is a carrier for an X-linked recessive disorder.
Learn more about inheritance linked to the chromosome X here:
https://brainly.com/question/9773481
If a colony of 10 bacteria begin dividing once every 24 hrs, how long would it take to get 320
bacteria?
48 hours
144 hours
0 72 hours
120 hours
Answers
A group of scientists studied the effects of exercise on insulin sensitivity in elderly women. The scientists measured the amount of insulin secreted in the saliva when given glucose. Measurements were taken at 0, 20, 40, and 70 minutes after the glucose was administered. The graph shows the data collected before and after a four-month exercise program was put into place
Which statement BEST analyzes the data shown in the graph?
A. Elderly women secrete more insulin the more they exercise.
B. Exercise decreases insulin sensitivity in elderly women.
C. Insulin sensitivity is at its highest after 50 minutes.
D. Insulin sensitivity increases as exercise decreases.
Answers
Answer:
B. Exercise decreases insulin sensitivity in elderly women.
Explanation:
I got the answer correct in a test.
Exercise decreases insulin sensitivity in elderly women.
What is Insulin?
Your muscle cells are better equipped to use any insulin that is present to take up glucose during and after exercise because their insulin sensitivity has risen.
Whether or not insulin is present, when your muscles contract during activity, your cells can absorb glucose and utilise it as fuel.
Depending on how long you exercise for, among other things, will determine how your physical activity affects your blood sugar levels.
Learn how your blood sugar changes as a result of activity. You can better understand the advantages of exercise by monitoring your blood sugar levels more frequently before and after exercise.
Therefore, Exercise decreases insulin sensitivity in elderly women.
To learn more about exercise, refer to the link:
https://brainly.com/question/28209571
#SPJ2
simply square root of 18
Answers
Answer:
4.2
Explanation:
Answer:
3√2 or 4.2
Please mark as brainliest if answer is right
Have a great day, be safe and healthy
Thank u
XD
What happens during synapsis?
A. gene recombination
B. DNA replicates
C. the cell divides
D. centrioles move to the poles
Answers
Answer:
C
Explanation:
What term describes the biological burden on the body caused by emotional upset?
Answers
I believe its allostatic load which is the wear and tear on the body that accumulates when we are under a lot of stress
The wear and tear on the body due to repeated or chronic stress, which is a emotion.
The chart below is a taxonomic key for the fictitious insect genus
Problematica. To which species does the insect in the picture belong?
Select one:
A. Problematica differensis
B. Problematica brancus
C. Problematica cantrellis
D. Problematica alva
Answers
If a microscope has a 40´ objective lens in place and a 15´ ocular lens, the total magnification of the microscope system under these conditions is
Answers
Answer:
600`
Explanation:
The total magnification of a microscope is obtained by multiplying the magnifying power of the ocular lens and that of the objective lens.
Mathematically.
Total magnification = ocular magnification x objective magnification
In this case, ocular magnification = 40`, objective magnification = 15`
Total magnification of the microscope system = 40 x 15
= 600`
Hence, the microscope system under these conditions would be 600`.
What happens to waste before it is passed out of the body???
Answers
Answer:
It goes through a series of "Events" I'll talk you through them lol.
Explanation:
See, when you eat something it goes down the esophagus and into the stomach, then to your small and large intestine. While it slowly travels through your intestines, your body is slowly taking the nutrients from that piece of food, which makes the food turn into a different color, since all the nutrients is taken out of the food, then the body no longer needs that food. Then it disposes from the body!
Hope this helped!
:3
how would blockage of the pancreatic duct affect the digestive system
a) The food in the small intestine would be more basic (alkaline
b) It would have little effect because liver enzymes would take over
c) The small intestine would contain acidic, mostly undigested chyme.
d) The stomach would be unable to function
Answers
Answer:
D
Explanation:
The stomach would eventually shut down (stop working) cause it could not digest anymore
in a certain environment, a prey animal can camouflage and avoid predation when it is all
gray (same color as the rocky terrain) or when it is black (same color as the parts of the
environment that have been affected by an oil spill). Dark gray prey animals do not blend
either surface. What kind of selection will likely be seen?
(1 Point)
Answers
Can you guys help me with this ? Kinda struggle with those questions.
Answers
What percentage of DNA comes from
each parent during sexual reproduction?
Answers
Answer:
50 %
Explanation:
So, each sperm contains 50% of the father's genes and each egg contains 50% of the mother's genes. This makes gametes different from other cells in the body
Answer:
50 from each parent is the correct answer
PLEASE HELP I BEG :
Explain why all solids are not the same, even if they are made of the
same type of atoms? *
Answers
All solids are not the same, even if they are made of the same type of atoms because the arrangement of atoms is different.
Are blue-green algae plants?
Blue-green algae are colored prokaryotes that can be
unicellular or can form colonies of cells, but they are not
truly multicellular. This algae species is autotrophic,
needs sunlight, and performs photosynthesis.
O yes, because they are not multicellular or eukaryotic
O yes, because they are autotrophic and need sunlight
O no, because they are autotrophic and need sunlight
O no, because they are not multicellular or eukaryotic
Answers
Answer:
Explanation:
d
what is the difference between ovulation parturition, and gestation
Answers
Gestation is the time the female mammal is pregnant and growing the embryo into an offspring that can survive after birth.
Parturition is the act of giving birth.
2. What type of pesticide is used to kill mold?
a rodenticides
b fungicides
c insecticides
d herbicides
Answers
Answer:
type of pesticide is used to kill mold (b) fungicides
Answer: B fungicides
Explanation: i took the quiz
natural chemicals in the brain that cause feelings of relaxation and happiness are called
Answers
Explain why most local water budgets are not balanced
Answers
Answer:
When precipitation exceeds evapotranspiration and runoff in an area, the result is moist soil and possible flooding. Vegetation reduces runoff in an area but increases evapotranspiration. ... The volume of water moved by a stream in a given time period.
: ) x
Describe the role of group behavior in African and European honeybees on individual and species' chances to survive and reproduce,
Answers
Answer:
They operate a very organized division of labour
Explanation:
The role of group behavior in African and European honeybees on individual and species' chances to survive and reproduce can not be underestimated as they have the queen which is mainly responsible for laying eggs and the major reproductive process.
The soldiers help to protect the territory while the workers ensure there is enough food to last the members of the colony.
c) Taxol is a cancer medication that makes the structures in the cytoskeleton
more stable. This makes it harder for cells to form mitotic spindles. Why would
this be effective when fighting a tumor? (1 point)
Answers
Answer:
Explanation:
Taxol will be effective because it stops the uncontrollable cell division of cancerous cells. It makes it very difficult for cells form mitotic spindles and hence will make it very hard for the DNA to be divided. This will then stop division and causes it to die.
Help help ASAP help no link
Answers
Effect 2 - A
Effect 3 - C (maybe B)
Effect 4 - B
what force is caused by gas molecules and slows things down? answer ASAP!
A. Air resistance
B. Pulling
C. Friction
D. Gravity
Answers
Answer:
ima say that a makes the most sense but def not d
Explanation:
Answer:
A. Air resistance.
It slows things down
1. Match each term with the correct definition. a. External bleeding b. Direct pressure c. Pressure bandage d. Internal bleeding e. Arteries f. Veins g. Tourniquet ____ Using your gloved hand to apply pressure on the wound to control bleeding ____ Bleeding that can be seen coming from a wound ____ The escape of blood from an artery, vein or capillary inside the body ____ A tight band placed around an arm or leg to constrict blood vessels in order to stop blood flow to a wound ____ Blood vessels that carry blood from all parts of the body to the heart ____ Vessels that transport blood to the capillaries for distribution to the cells ____ A bandage applied snugly to maintain pressure on the wound to control bleeding
Answers
Answer:
Using your gloved hand to apply pressure on the wound to control bleeding. b. Direct pressureBleeding that can be seen coming from a wound. a. External bleeding The escape of blood from an artery, vein, or capillary inside the body. d. Internal bleeding A tight band placed around an arm or leg to constrict blood vessels in order to stop blood flow to a wound. g. TourniquetBlood vessels that carry blood from all parts of the body to the heart. f. Veins Vessels that transport blood to the capillaries for distribution to the cells. e. ArteriesA bandage applied snugly to maintain pressure on the wound to control bleeding. c. Pressure bandageExplanation:
Direct pressure is a technique used to stop the bleeding on the wound. The person should place both hands over the wound and press firmly till doctors arrive. With this first aid technique, we prevent excessive blood loss, which can cause worse problems in the future.
There are two types of bleeding, external and internal. In the first one, the skin opens, and blood comes out to the exterior. In the second one, the skin is not open, so the blood does not come out to the exterior, but blood goes to tissues around the broken vessel due to an internal injury.
A tourniquet is a first-aid technique use to stop blood flow and prevent that the injured person bleeds out till death. A band, a piece of shirt, or a belt should go around the limb and tie it hard to stop the blood flow and allow the patient to arrive at the hospital. It is a technique usually use when there is a wound that affects the main vessels.
There are different types of vessels. They change in size and structure. Veins are the vessels that carry blood back to the heart, where it will go to the pulmonary circuit to be oxygenated. Arteries will take the oxygenated blood from the heart to the rest of the body. The arteries branch into small vessels called arterioles, and the arteries branch into capillaries which will give oxygen to the cells.
A pressure bandage controls bleeding and prevents the injury from being contaminated. The pressure bandage does not restrict blood flow as a tourniquet.