Answer:
Zn + 2AgNO3 → 2Ag + Zn(NO3)2
Explanation:
Where were the earth's landmasses located? How did they differ from today?
On the cellular level, what causes cancer?
A. cells produced with DNA
B. accelerated cell death
C. out-of-control cell growth and division
D. defective cell membranes
Answer:
A
Explanation:
Persian cats often have certain diseases and disorders, especially of the eye and nose since their heads have an unusual shape. Persian cats were developed by artificial selection by humans.
Which of the following traits is deliberately selected for when breeding Persian cats?
A.
flat faces
B.
inherited diseases
C.
genetic diversity
D.
all of these
Answer:
the answer is A
Explanation:
It couldn't be D or C because you don't want to give your cat a diseases and so that means it couldn't be D which is all of the above.
The term genotype refers to
Answer:
In a broad sense, the term "genotype" refers to the genetic makeup of an organism; in other words, it describes an organism's complete set of genes. In a more narrow sense, the term can be used to refer to the alleles, or variant forms of a gene, that are carried by an organism.
Explanation:
Urgent !! Pls help!
why can an increase in glycon phosphorlase activity might result in an increase in o2 consumption in the cell
Answer:
The liver senses the concentration of glucose in the blood and takes up or releases glucose accordingly. The amount of liver phosphorylase a decreases rapidly when glucose is infused. After a lag period, the amount of glycogen synthase a increases, which results in the synthesis of glycogen.
Explanation:
Answer:
In muscle tissue, the ratio of phosphorylase a to phosphorylase b determines the rate of conversion of glycogen to gluco...
In muscle tissue, the ratio of phosphorylase a to phosphorylase b determines the rate of conversion of glycogen to glucose 1-phosphate. Classify how each event affects the rate of glycogen breakdown in isolated muscle tissue.
Estrogen is one of the hormones produced by human females. Identify one organ that produces estrogen and state one specific function of estrogen in a human female.
Answer:
The ovaries. They produce the women's eggs.
Explanation:
Estrogen helps control the menstrual cycle and also helps childbearing.
The hormone estrogen is highly produced by ovaries, while some of the estrogen is also produced by the adrenal gland.
What do you mean by Hormone?Hormones may be defined as the chemical substances which are secreted by the endocrine glands and are transported to the target site via the bloodstream.
There are numerous functions of the hormone estrogen found in the body of a human female.
It helps in stimulating the growth of the egg follicle. It regulates the menstrual cycle. It also controls the thickness of uterine mucus secretions.
Therefore, it is well described above.
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Rocks form in horizontal layers. However, as shown along mountainsides, rock layers can become twisted or bent. The work of James Hutton and Charles Lyell helped to explain observations of twisted or bent rock layers. What was one of their conclusions? A. Earth is extremely old, and Earth processes acted gradually to twist or bend rocks. B. Earth is only a few thousand years old, and Earth formed with many twisted or bent rocks. C. Earth is only a few thousand years old, and Earth processes acted much more rapidly in its early history. D. Earth is extremely old, and Earth formed with many twisted or bent rocks.
Answer:
A. Earth is extremely old, and Earth processes acted gradually to twist or bend rocks.
Explanation:
The land is a system that lives in constant movement, in addition to being subjected to several factors that can modify its structure and composition. The earth is a very old planet and has been subject to these factors since its creation. In addition, more factors appear with the passage of time, creating several terrestrial processes that have the ability to gradually modify the earth even geologically, being able to twist and bend the rocks.
Year 2020 produced more hurricanes than any hurricane season ever.
A. weather
B. climate
C. climate change
"C" Climate change, because if the past time had more hurricanes than in these times, then the weather has changed. .
What happens right before RNA polymerase begins to work?
O A. Nucleic acids attach to the bases in the DNA.
B. mRNA detaches and moves to the ribosomes.
O C. The DNA double helix unwinds.
D. RNA polymerase reaches the end of the gene.
Answer:
O C. The DNA double helix unwinds.
Dr. Kettlewell predicted that clean forests would have___________ colored moths, and polluted forests would have ____________ colored moths.
Moth type: Peppered moths.
Answer:
Dr. Kettlebell predicted that clean forests would have light peppered colored moths, and polluted forest would have dark peppered colored moths.
Explanation:
Kettlewell thought that if natural selection caused the change in moth population.
Dark moths resting on light trees were more likely to be eaten by birds then light moths.
Dr predicted the clean forest should have light-peppered and polluted forest have dark peppered.
Role of natural selection:At the time when Dr predicted the clean forest should have light-peppered and polluted forest have dark peppered.
So here the doctor think that the natural selection leads the change in the moth population. Also, the dark moth should be rested on the light trees that eaten by the birds as compared to the light moth.
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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
At the site of a wound, platelets release chemicals that start a chain reaction to produce _____. A. Hemoglobin. B. Fibrin. C. Lymph. D. Plasma
Answer:
C
Explanation:
What causes stomach cramps?
Answer:
the main causes are, infection,abdominal growth,inflammation,obstruction blockages
Explanation:
“Stomach cramps” is a general term that refers to sharp, intermittent contractions or feelings of pain or discomfort that occur anywhere in the abdomen between the lower chest and the pelvis or groin. The abdomen consists of many organs, including the stomach, intestines, liver, gallbladder, pancreas, esophagus, and numerous blood vessels.
Stomach cramps are a common symptom of a wide variety of mild to serious diseases, disorders and conditions that are often related to the abdominal organs and sometimes the pelvic organs, such as the uterus and bladder. Most people will experience stomach cramps at some point during their lifetime, and they can occur in any age group or population. Common causes of stomach cramps include indigestion, gastroenteritis, menstrual cramps, bladder infection, and excessive flatulence (gas).
Stomach cramps may be generalized, which means they occur throughout the abdomen. Stomach cramps may also be localized in a small area of the belly, such as the lower abdomen or pelvis near the groin, or in the upper abdomen where the stomach is located.
Depending on the cause, stomach cramps can last for a few minutes or hours, such as when they occur from indigestion due to eating rich food or from vigorous exercise. Stomach cramps can also last for a few days, such as when they are due to a menstrual period. Long-term stomach cramping may be continuous or occur periodically and may be due to more serious conditions, such as colorectal cancer.
In some cases, stomach cramps may be caused by serious conditions, such as food poisoning or colorectal cancer. Seek prompt medical care if your stomach cramps are unexplained, persistent, or cause you concern.
Stomach cramps may accompany other symptoms, which vary depending on the underlying disease, disorder or condition. If you have other symptoms along with stomach cramps, be sure to inform your health care provider. This information will help your doctor diagnose the reason for your stomach cramps.
( I hope this was helpful ) >;D
please help right answer only
Answer:
Prophase
Explanation:
During Prophade, the chromosones condense, the nucleous dissapears, and the nuclear envelipe breaks down
What are carbohydrates dissolved into the bloodstream as?
1 Sucrose
2 Fats
3 Glucose
4 Dextrose
Answer:
glucose
Explanation:
Answer:
3 Glucose
Explanation:
hey guys um i found this crystal but i am not sure what it is. any help?
Answer:
I'm pretty sure it's just a fancy rock
the closest i could find was something like "polish stone"
If an onion cell contained 16 chromosomes at the start of Gi, how many chromosomes would be present in each of
the two daughter cells produced after mitosis? Explain your answer
Answer:
16
Explanation:
because when they reproduce you can't give half on each daughter onion or else they won't be like a regular onion and both the father and mother give half of their chromosomes when they make babies
Which electromagnetic wave can butterflies,
hedgehogs, and many other animals see?
A. Infrared light
B. Ultraviolet light
C. Microwaves
D. Radio waves
The electromagnetic wave that butterflies, hedgehogs, and many other animals can see is the ultraviolet light that is in Option B, as the ultraviolet light gives these animals a different perspective to visualize.
What role does UV light play in animals?Many animals can see the UV lights, and this is important as the flowers and fruits emit ultraviolet patterns that are invisible to humans but are seen by pollinators such as butterflies and help them find foods.
Hence, the electromagnetic wave that butterflies, hedgehogs, and many other animals can see is the ultraviolet light that is in Option B, as the ultraviolet light gives these animals a different perspective to visualize.
Read more about the UV light here.
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please answer ill give brainly
List and describe the six common morphologies
Explanation:
The basic morphologies are spheres (coccus) and round-ended cylinders (bacillus). But there may be others such as helically twisted cylinders (spirochetes), cylinders curved in one plane (selenomonads) and unusual morphologies (such as the square, flat box-shaped cells of the archaean genus Haloquadratum).
Avery’s experiments showed that bacteria are transformed by
Answer:
Avery's experiments showed that bacteria are transformed by “transforming principle” – DNA.
Explanation:
What would the DNA nucleotide sequence be if the following DNA strand was Replicated?
ATGGGACTCA
Answer:
Dideoxynucleotides are chain-elongating inhibitors of DNA polymerase, used in the Sanger method for DNA sequencing. They are also known as 2',3' because both the 2' and 3' positions on the ribose lack hydroxyl groups, and are abbreviated as ddNTPs.
Explanation:
PLEASE HELP ASAP
Which of the following is an example of a nonsense mutation?
A substitution of a serine amino acid for a glycine amino acid
A substitution of glycine amino acid for a stop codon
An insertion or deletion of nucleotides that is not a multiple of three
A codon mutated from CCG to CCA, both coding for glycine
Answer:
An insertion or deletion of nucleotides that is not a multiple of three
Answer:A substitution of glycine amino acid for a stop codon is an example of a nonsense mutation.
Explanation:
A nonsense mutation is a type of point mutation that results in the formation of a premature stop codon in the mRNA sequence.
Answer to this question ?
Answer:
[tex]\Large \boxed{\sf 50\%}[/tex]
Explanation:
[tex]X=Aa[/tex]
[tex]Z=bb[/tex]
Heterozygous is when an individual has two different alleles of a gene.
[tex]Heterozygous \rightarrow Aa,Aa,Bb,Bb[/tex]
[tex]\displaystyle \frac{no. \ of \ heterozygous}{total \ no.}=\frac{4}{8} =0.5[/tex]
Find the hypotenuse of a right triangle whose legs both have a length of 5.
Answer:
Hypotenuse = 7.07 units.
Explanation:
The sides of the right angle triangle are the opposite and adjacent side; which are both equal in this case.
Given the following data;
Opposite = 5 units
Adjacent = 5 units
To find the hypotenuse, we would use the Pythagorean theorem given by the formula;
Hypotenuse² = opposite² + adjacent²
Hypotenuse² = 5² + 5²
Hypotenuse² = 25 + 25
Hypotenuse² = 50
Hypotenuse = √50
Taking the square root of both sides, we have;
Hypotenuse = 7.07 units.
How are these atoms used to make new molecules and what types of molecules are made? Where does the energy come from to produce these new molecules?
Answer:
Atoms used energy to make new molecules.
Explanation:
Atoms used energy to make new molecules through making bonds with one another because bonds allow atoms to attached tightly with each other. The energy come from the external environment in order to produce new molecules. So we can conclude that energy is the main ingredient needed for making new molecules and this energy is gained from the environment.
Answer:
I would like to help, but what are the new molecules they are producing? And what are the atoms the question is talking about?
To produce a valid test, the survey questions do not have to relate to the subject of the study?
CAN SOMEONE HELP ME PLEASE!! 100 POINTS!!! NO COPYING AND PASTING!!!! IN 4 PARAGRAPHS PLEASE!!!
How are Earth's structures created over time?
Answer:
Earth crust is constantly changing primarily due to plate tectonics (plate motion), but it also changes from activity on the surface from river, man made and meteorite impact. ... Continents and oceans do not ride atop the plates without changing. As the plates move and change so do the continents and oceans
Answer:
Explanation:
Earth's structures were created when the planet was first formed. Over time, its own gravitational and magnetic forces drove the Earth's core rotation. Other geological activities affected its structures; such as glacial movements, tectonic plates collisions and submersion, volcanic eruptions and so on. There were also major external events the asteroid impact that killed most lives on Earth. Human activities' impact on Earth's structures were relatively small until the recent centuries.
A student graphed distance versus time for an object that moves 14 m every 2 seconds. What is the slope of the ling on the graph. Please explain!
Answer:
A slope of 7, representing a speed 7 m/s.
Explanation:
Speed is defined as the distance traveled over time. Mathematically, it's calculated with the equation:
[tex]speed = \frac{distance}{time}[/tex]
Slope of a graph is the rate at which the y and x axis change together, the "rise over the run." Slope can be simply calculated using this equation:
[tex]slope = \frac{x_{2} - x_{1}}{y_{2} - y_{1}}[/tex]
Therefore, when graphing distance versus time, the change in distance is divided by the change in time to find the slope. This is the same as speed.
These are two types of crust that make up the Earth's surface. A lithosphere and asthenosphere b convection and mantle c continental and oceanic d lithosphere and continental
Answer:
C. Continental and Oceanic
Explanation:
(did this stuff last year)