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Answers
Answer:
c
Explanation: It is younger because it retains most of its potassium. This means that the potassium has not had time to break down yet. In the second rock there is little to none of it's original potassium. Meaning it has existed long enough for most of the potassium to break down.
Related Questions
4. If one strand of DNA has the sequence of nitrogenous bases AACTG, its complementary strand has the sequence _______.
A. TTGAC
B. AACTG
C. UUBAC
D. AACUC
11. What is a mutagen?
A. a type of base pair mutation
B. the cellular response to a detected mutation
C. any type of protein mutation
D. anything that causes a DNA mutation
12. Which of the following is NOT an example of a mutation?
A. the removal of a base pair
B. the copying of a base pair
C. the replacement of a base pair
D. the addition of a base pair
Answers
B I think
A I think as well sorry!
This is where the genetic information is found in a eukaryotic cell?
Answers
Answer:
nucleus
Explanation:
Holds about everything
Answer:
The genetic information in a eukaryotic cell can be found in the nucleus.
Explanation:
Hope this helps!
Linnaeus classified organisms into two kingdoms. How was his system of classification impacted after the invention of the microscope?
Answers
Answer:
A is the answer
Explanation:
HI, can someone help me plz.
Answers
Answer:
XHXh × XHY
XHXH XHY XHXhXhY
XCXC × XcY
XCXc XCY XCXc XCY
Colour blindness is a sex- linked recessive disease. It is inherited by the X chromosomes.
which led to the development of Penicillina??
Answers
Answer:
Penicillin was discovered in 1928 by Scottish scientist Alexander Fleming as a crude extract of P. rubens. Fleming's student Cecil George Paine was the first to successfully use penicillin to treat eye infection (ophthalmia neonatorum) in 1930.
Explanation:
Answer:
Is that you?????
Explanation:
. What is the process called when the food coloring moved into the egg placed in acid?
Acidification
Diffusion
Collaboration
Carbonation
Answers
HELP PLEASE OTS DUE LIKE IN AN HOUR!!!!!!!!!!
Answers
the first one's answer is : Nickel
and the second part's answer is : Green Kryptonite
what is the formula for the name magnesium iv sulfide
Answers
Answer:
Mn(SO4)2
Explanation:
none, but pls give brainliest
Answer:
Mn(SO4)2
Explanation:
When a thin plant or animal leaves an impression in sediment that becomes sedimentary rock, this is a _____________________ fossil.
Answers
Answer:
Petrified fossils
Explanation:
DNA molecule is composed of long chains of repeating subunits called
Answers
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Answers
Answer:i think its b im not sure dont do b wait till someone else sees it
Explanation:
Answer:
B. "Scientist theories are based on large amounts of evidence."
I hope this helps you! :D
Explanation:
Theories are put into action once large amounts of research and evidence can be provided to prove a theory. Scientists especially need lots of evidence in order to prove a point and their theory.
A vaccine is a substance that contains all or part of a noninfectious version of a disease-causing organism. When the vaccine is administered to a person, the person's immune system attacks the noninfectious version of the organism and learns to recognize its surface proteins. The next time the immune system comes in contact with the same surface proteins, it has a defense already prepared in order to respond quickly to the invading organism. In this way, a vaccine gives people immunity to the disease-causing organism.Vaccines can be life-saving, but there have been a few cases of people catching a disease from the administered vaccine.How might genetically engineered organisms solve this problem?
Answers
Answer:
GMOs can be used to produce cheaper, easier to administer, and safer vaccines
Explanation:
Genetically modified organisms (GMOs) are organisms whose genomes have been altered in the laboratory by using genome engineering techniques. These GMOs have a fundamental role in clinical research and they have been increasingly used in the last decades for developing safer and cheaper vaccines. For example, genetically engineered hepatitis B vaccines have been developed with recombinant DNA techniques using genetically modified yeast (Saccharomyces cerevisiae). Moreover, GMO plants are nowadays also being used to develop consumable vaccines which can be orally administered to be absorbed and assimilated through digestion.
Can yeast digest milk?
Answers
Answer:
Yeast do not have the lactase enzyme and cannot break down lactose. If you add lactaid, lactose will be broken down into glucose and galactose, which can be used by the yeast.
Explanation:
Hope this helped =>
) Veins have different structures from arteries. State two features of veins and explain how these features enable them to function efficiently.
Answers
Answer:
1)Carrry Blood towardsthe heart .
2) most carry deoxygenated blood .
3) help keep blood flowing towards the heart .
Drag the tiles to the correct boxes to complete the pairs. Match the descriptions to the correct type of fungi. has positive and negative mating strands has erect fruiting body the first fungi to evolve lives in a varied habitat and exhibits all forms of nutrition chytrid arrowRight common mold arrowRight sac fungi arrowRight club fungi arrowRight
Answers
Answer:
Fungi are unicellular or multicellular eukaryotic organisms that are dependent for their energy and food on dead organic material or other organisms. These organisms produce by both sexual and asexual reproduction.
1. club fungi show a bipolar mating system as they have positive and negative mating strands.
2. sac fungi have an erect fruiting body filled with asci.
3. The chytrids have a cell wall of chitin, a flagellum, absorptive structures for nutrition therefore have a lineage.
4. The common molds grow in the form of hyphae and shows all for of nutrition and live in every possible habitate.
hope this helps you! :)
Question 20
A material is biodegradable if
A
it is made of synthetic material.
B
it is made from petroleum or natural gas.
it can be broken down by biological processes.
D
if can be disposed of in a landfill.
Answers
What causes tides to occur every 12 hours? A. the moon's revolution. B. the moon's rotation. C. Earth's rotation. D. Earth's revolution.
Answers
Answer:
A. the moon's revolution.
Explanation:
his occurs because the moon revolves around the Earth in the same direction that the Earth is rotating on its axis.
Answer:
Earth's rotation.
Explanation:
I took a test and this is the answer
Common symptoms of iron deficiency anemia muscle weakness, shortness of breath, and lightheadedness. Why does iron deficiency cause these symptoms?
Answers
Answer:
If your body lacks iron, it becomes difficult to make hemoglobin, because iron is needed to make that protein in order for oxygen to be carried around to your tissues and muscles.
Which statement is not true about the main ingredient of the cell -- water?
a). Water surrounds the cell which helps insulate your body
b). Water makes up more than 75 percent of a cell
c). Water helps your body maintain a stable internal environment (homeostasis)
d). Water helps make salts
Answers
Answer:
d. water helps make salt
Pteridophytes meaning
Answers
Answer:
(Pteridophyta) of vascular plants (such as a fern) that have roots, stems, and leaves but lack flowers or seeds
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Have a great day, be safe and healthy
Thank u
XD
Answer: A member of the Pteridophyt
Explanation:
a division of plants including ferns and their allies.
Which sentence describes a disadvantage of using nuclear fision to produce
electricity?
A. Fission changes one type of atom into another type of atom,
B. Fission produces only a small amount of energy
c. Uncontrolled fission reactions can result in dangerous explosions,
O D. Fission requires conditions that exist only in the cores of stars.
Answer is C
Answers
Answer:
C. Uncontrolled fission reactions can result in dangerous expolosions
Explanation:
The sentence describes a disadvantage of using nuclear fision to produce electricity is uncontrolled fission reactions can result in dangerous explosions. Thus, option C is correct.
Why nuclear fission is different from nuclear fusion?The two ways that nuclear fission is different from nuclear fusion include are the nuclear fission involves one large atom splitting into two smaller atoms and nuclear fission releases a huge amount of energy as the nuclear fusion involves the combination of two or more atoms while Nuclear fission involves one large atom splitting into two smaller atoms.
They both take place in the nucleus of the atom and can be used to generate electricity. They both release energy with the process of nuclear fusion releasing more than nuclear fission.
Fission produces only a small amount of energy and uncontrolled fission reactions can result in dangerous explosions as the Fission requires conditions that exist only in the cores of stars.
Therefore, The sentence describes a disadvantage of using nuclear fision to produce electricity is uncontrolled fission reactions can result in dangerous explosions. Thus, option C is correct.
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How specialized structures increase the probability of successful reproduction in the plants, and factors that affect their growth?
Answers
Answer:
Specialized structures such as
1. The brightly colored flowers attract insects that transfer pollen from the anther to the stigma of another plant.
2. The scented smell of flowers and their nectars also attract insect and other pollinators to them.
Explanation:
Reproduction refers to the way by which plants and animals produce offspring or their types. Pollination, which is the transfer of pollen grains from the anther to the stigma of the same or another flower is a vital way by which plants accomplish this.
Structures of plants such as their brightly colored flowers, the nectars produced by them, as well as their characteristic smells attract pollinators to them that, in turn, aid reproduction.
What happens right before transcription begins?
O A. mRNA is produced from nucleic acids.
O B. The transcription process stops.
O C. RNA polymerase is guided to the correct place.
O D. DNA is produced from the mRNA.
Answers
Answer: a
Explanation:
Which sequence of human body structures is ordered from most complex to simplest?
A. heart cells, heart tissue, heart, circulatory system
B. heart tissue, heart cells, heart, circulatory system
C. circulatory system, heart, heart cells, heart tissue
D. circulatory system, heart, heart tissue, heart cells
Answers
am I right? or no I'm having issues
Answers
Answer:
there are two homologs of each in all cells is an option too.
Explanation:
The somatic cells of sexually-reproducing eukaryotic organisms are diploid, meaning that they have 2 sets of homologous chromosomes.
he Roman Emperor famous for creating a code of law is _____________ .
Answers
Answer:
emperor Justinian I....
Which type of fertilization occurs in humans? Explain your answer.
Answers
Internal fertilization
Explanation:
everything takes place inside a female womb
Answer:
When the sperm and egg(ovum) fuse, their fusion is called fertilization.
Explanation:
Since it takes place inside the body of the female.it is an internal fertilization. During this process, the nuclei of sperm and egg fuse to form a single nucleus. The resultant single cell,formed after the fertilization, is called zygote.
Please put these rock layers in order from Oldest to youngest user their letter labels
Answers
Answer:
A=oldest C=2nd oldest B=3rd oldest D=4th oldest and E=youngest
Explanation:
F is the youngest of them all.
Hope this Helps! ;)
Answer all these using the lytic and lysogenic cycles. 25 points
What position is the
switch in? Why?
What term is used to
describe the virus
particle in this cycle?
What is the impact on
the cell?
What happens to the
host cell’s DNA?
When does the birth
of new viruses occur?
What happens at the
end of the cycle?
Answers
Answer: Ok so i answer every one that has a question mark?
Explanation:
Which of these events does not occur during telophase?
Answers
Answer:
A, the chromosomes dont ¨relax¨.
Explanation:
Chromosomes during telophase are doing all exept A
The event that does not occur during telophase is cytoplasm splitting into two, which is in the second option, because this phenomenon occurs after telophase, which is in the cytokinesis of the cell cycle.
What is the function of telophase?Telophase is the final stage of mitosis/meiosis and follows the stages of prophase, prometaphase, metaphase, and anaphase, during telophase, the chromosomes start to decondense and become less visible under the microscope, as they are no longer tightly packed together, and a new nuclear envelope begins to form around each set of chromosomes, creating two separate nuclei. There is no cytoplasmic division in the telophase.
Hence, the event that does not occur during telophase is cytoplasm splitting into two, which is in the second option.
Learn more about the telophase here.
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