Answer:
photorepair
Explanation:
Damage caused by UV light leading to thymine dimers is corrected during photorepair by the enzyme photoreactivation called as PRE. Thymine dimers are a problem leading to skin cancer in future.
What happens when the thymine dimer are not repaired ?If the thymine dimers are not repaired then it will lead to a condition of mispairing in DNA , transcription blocking.
It will lead to a condition of multiple growth of cells called as tumor where if uncontrolled UV exposure condition takes place then it will lead to skin cancer and is not curable if deadly stages comes up.
PRE enzyme in the presence of blue light breaks up the dimers and again restores the condition.
Therefore, DNA photolyase is the enzyme which stores energy and breaks the covalent bonds between the thymine dimer and restores the structures.
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3. A mechanical weathering process in which tectonic forces lift deeply buried rocks upward and
then erosion removes overlying rock and sediment - the net result of which is to remove the
pressure from overlying materials causing the rock to expand and fracture.
O chemical weathering
O erosion
O pressure-release fracturing
O mechanical weathering
which property of transposable elements allows them to contribute to the c-value paradox?
Answer:
Their copy number can increase from one generation to the next.
Match the phrase with the term.
a. How hard the blood pushes on the inside of the blood vessels is called: ___________ .
b. The total amount of blood the heart pumps in one minute is called : ___________.
c. When blood vessels open wider during exercise, they are said to : ___________ .
d. How many times your heart beats in one minute is called : ___________ .
e. The force that can put unhealthy tension on the heart as it is pumping is called : ___________.
f. The amount of blood the heart pumps out in one beat is called : ___________.
1. blood pressure
2. cardiac output
3. dilate
4. heart rate
5. blood pressure
6. stroke volume
How hard the blood pushes on the inside of the blood vessels is called? BLOOD PRESSURE
The total amount of blood the heart pumps in one minute is called ?
CARDIAC OUTPUT
When blood vessels open wider during exercise, they are said to ?
DILATE
How many times your heart beats in one minute is called ?
HEART RATE
The force that can put unhealthy tension on the heart as it is pumping is called ?
BLOOD PRESSURE
The amount of blood the heart pumps out in one beat is called?
STROKE VOLUME
Glycolysis provides a cell with a net gain of:
a. 18 ATP molecules.
b. 36 ATP molecules.
c. 4 ATP molecules.
d. 2 ATP molecules.
Answer:
d. 2 ATP molecules.
Explanation:
The net gain from glycolysis is two molecules of ATP and two molecules of NADH. The conversion of pyruvate to acetyl CoA and its metabolism via the citric acid cycle yields two additional molecules of ATP, eight of NADH, and two of FADH2.
The fur color of collared lemmings changes to white at a certain time of the year.
a. Explain how the change in fur color is an advantage to collared lemmings. When temperatures rise above freezing, snow melts, which causes changes in the collared lemmings’ habitat.
b. Describe two ways warming temperatures could cause the size of the collared lemming population to decrease.
c. Describe how fur color in the collared lemming population will likely change over time as temperatures increase because of climate change.
The change in fur color of collared lemmings is an advantage in the face of rising temperatures because their snow color will make them easily vulnerable to predators.
What is adaptation?The term adaptation refers to the morphological or physiological changes that an organism undergoes in order to survive efficiently in its environment.
The change in fur color of collared lemmings is an advantage in the face of rising temperatures because their snow color will make them easily vulnerable to predators when the snow eventually melts.
The rise in temperature will cause physiological changes in the the population of the collared lemmings which could reduce their population size. Also, predators can now access them more easily as they become more visible.
As time goes on, the snow color of the collared lemmings will eventually change as the animal will have to take on colors that will enable it to blend again with its new habitat and escape predators.
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1. Where are various rocks formed?
2. Difference between oceanic and continel rocks.
Answer:
Explanation:
pt.1 There are three major types of rocks: Metamorphic, Igneous, and Sedimentary. Metamorphic Rocks - Metamorphic rocks are formed by great heat and pressure. They are generally found inside the Earth's crust where there is enough heat and pressure to form the rocks. Metamorphic rocks are often made from other types of rock.
pt.2 The oceanic crust is made up of basalt while the continental crust is made up of granite. The oceanic crust is thinner while the continental crust is much thicker. The oceanic crust is denser than the continental crust. The continental crust has greater buoyancy than the oceanic crust.
[WILL GIVE BRAINLIEST]
Which pair of body systems control and coordinate the cells that make up the organism?
A. Nervous & Endocrine
B. Digestive & Circulatory
C. Reproductive & Muscular
Answer:
The nervous system and the endocrine system
Explanation:
The nervous system and the endocrine system regulate and coordinate body functions by sharing in a unique partnership. Jointly they maintain growth, maturation, reproduction, metabolism and human behavior.
Answer:
Sorry I don't know.
Is this Science?
How much work do you do when you lift a 100-N child 0.5m?
Answer:
50 J
Explanation:
Work = F × D
= 100 N × 0.5 m
= 50 Nm / 50 J
2. The graph represents changes to two jackrabbit populations in two different areas over 15 years.
a. Which of these populations experienced the faster growth rate over the first five
years? Explain your answer. (1 point)
Can I get some help please
Answer:
3. Testes and ovaries
4. Vas deferens
5. Testosterone, estrogen, and progesterone
6. The sperm is released from the testes and is then passed through the epididymis, ductus deferens, ejaculatory duct, and then the urethra.
Explanation:
Which of the following people is most likely to develop varicose veins?
Answer:
An overweight, elderly woman who spends most of the day sitting. is correct
Explanation:
Hola everyone! Could someone please double-check my answer :p
*** = my answer
*-*-*-*-*-*-*-*-*-*-*-*
A genetic disease is found in a family that affects the immune system, lungs, heart, and kidneys. A DNA analysis of several affected and unaffected family members be What type of inheritance pattern is shown in this disease?
A. Polygenic trait
B. Codominance***
C. Pleiotropy
D. Incomplete dominance
Answer:
Explanation:
Hola
What will be the economic and social consequences of this loss of biodiversity? Can anyone help please?
Answer:
economic consequences
Whilst human-made changes to ecosystems have often generated large economic gains, biodiversity loss damages the functioning of ecosystems and leads to a decline in essential services, which may have severe economic consequences, particularly in the longer term.
social consequences
Biodiversity loss can have significant direct human health impacts if ecosystem services are no longer adequate to meet social needs. Indirectly, changes in ecosystem services affect livelihoods, local migration and, on occasion, may even cause or exacerbate political conflict
Explanation:
I hope it helps you
⦁ Why is Isle Royale an ideal place for scientists to study predator-prey relationships?
Answer:
The resulting predator-prey relationship has been extensively studied ever since. The island's isolation, the limited presence of humans, and limited quantifiable populations
Explanation:
so they have created an ideal place for studying the relationship.
what happens to photosynthesis in different colored lights?
Which term describes the ability of a substance to change the genetic characteristics of an organism
Answer:
Transformation
the ability of a substance to change the genetic characteristics of an organism
compare and contrast aerobic respiration, anaerobic respiration, and fermentation.
Answer:
Aerobic respiration is the type of cellular respiration that takes place in the presence of oxygen.
Anaerobic respiration is the type of cellular respiration that takes place in the absence of oxygen.
Fermentation is the process of chemical reaction in which sugar gets converted into carbon dioxide and ethanol induced by micro-organisms.
Explanation:
Aerobic respiration is found in all higher animals and plants.
Anaerobic respiration is found in micro-organisms but rarely in higher organisms.
Fermentation is found in bacteria and some other higher animals (muscle cells in humans).
Aerobic respiration take place in the cytoplasm (glycolysis) and mitochondria (Krebs cycle and electron transport chain).
Anaerobic respiration takes places only in the cytoplasm.
Fermentation belongs to the anaerobic respiration and it takes place in the cytoplasm only.
Aerobic respiration produces 36 ATPs per glucose molecule.
Anaerobic respiration produces 2 ATPs per glucose molecule.
Fermentation produces 2 ATPs per glucose molecule.
Aerobic respiration: carbon dioxide and water.
Anaerobic respiration: lactic acid in animals; carbon dioxide and ethanol in plants or yeast.
me need help........................................
Answer:
Carbon dioxide is a compund
Explanation:
Since Oxygen and Carbon are elements in the periodic table...
Answer:
Carbon dioxide (the far right)
Explanation:
The graph below shows the lung function of test subjects at three different ages who had exposure to ozone gas from the same source and location.
According to the graph, which statement best describes the effects of ozone on human health?
At 0.2 ppm, lung function is worse in subjects older than 20.
At 0.3 ppm, lung function is better in subjects older than 20.
Subjects at age 20 have higher lung function than subjects at age 33.
Subjects at age 27 have lower lung function than subjects at age 20.
Answer:
B
Explanation:
It's Pretty Easy To Know
At 0.3 ppm, lung function is better in subjects older than 20.
Ozone can cause the muscles in the airways to constrict, trapping air in the alveoli. This leads to wheezing and shortness of breath.What is the functions of ozone?The ozone layer acts as a shield for life on Earth. Ozone is good at trapping a type of radiation called ultraviolet radiation, or UV light, which can penetrate organisms protective layers, like skin, damaging DNA molecules in plants and animals.There are two major types of UV light: UVB and UVA.However high amount of ozone can cause is a feeling of irritation in the eyes, nose and throat. Some people may also experience respiratory or heart symptoms such as shortness of breath, chest pain, and wheezing.Hence, B option is correct.
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What do you predict would happen if you brought a negatively charged balloon next to an uncharged piece of paper?
The balloon will attract the paper.
The balloon will repel the paper.
Nothing will happen.
The paper will repel the balloon.
Answer: Option A (the balloon will attract the paper)
Explanation:
I did the exam and option A was correct :)
I hope this helps!1. ___________________ is used to sustain metabolic activities within the cells, and ________________ is produced as a result of these activities.
Answer:
oxygen, carbon dioxide
Explanation:
How many different types of transport tissue do plants contain
Answer:
the answer is two types
Explanation:
hope this helps
Answer:
Plants have two different types of 'transport' tissue.
Explanation:
Xylem transports water and solutes from the roots to the leaves, phloem transports food from the leaves to the rest of the plant.
What part is the cell is a plastid that stores starch?
Answer:
the answer is
leucoplasts
Which cell structure acts like a vault holding the cell's genetic material?
c.
nucleus
cell envelope
b. organelle
d. cytoplasm
a.
Answer:
nucleus
Explanation:
Explain the relationship between an atom and an element
Answer:
A particular atom will have the same number of protons and electrons and most atoms have at least as many neutrons as protons. An element is a substance that is made entirely from one type of atom. ... All isotopes of a particular element have the same number of protons, but can have different numbers of neutrons.
Explanation:
Select all of the biomolecules that have a carbon-nitrogen bond.
lipid
protein
peptide
nucleic acid
carbonhydrate
please answer fast.
Answer:
All have carbon-nitrogen except carbohydrate
The biomolecules that do not have any carbon-nitrogen bond are proteins, peptides, and nucleic acids. The correct options are b, c, and d.
What are biomolecules?Biomolecules are organic molecules composed of carbohydrates, protein, lipids, and nucleic acids.
They are necessary for living cells to survive. Some valuable biomolecules have high demand that cannot be met by renewable resources.
Biomolecules are organic compounds that are required for life to exist. These molecules serve important functions such as a source of energy, materials for constructing new body mass such as muscles, and other molecules that serve important functions such as hemoglobin, which transports oxygen in the blood.
Proteins, peptides, and nucleic acids are examples of biomolecules that lack a carbon-nitrogen bond.
Thus, the correct options are b, c, and d.
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Questions
1.) Both strong acids and strong bases can be very dangerous and can give you a chemical
burn. Name a way that a strong bases may be more dangerous than a strong acid.
2.) Why might a person with reflux (indigestion) feel better after taking a Tums, Rolaid or similar
medicine?
3.) Name a common food that can cause "heartburn" due to the moderate to high pH?
Low
times more basic/alkaline than
4.) A substance with a pH of 12 is
a substance with a pH of 9?
5.) Salty ocean water has a higher pH than fresh water, due in part to the dissolved minerals
from coral, rocks and shells. If a child added lots of seashells to his
fresh water aquarium, give a reason why the fish might die?
Answer:
A =1
Explanation:
How Many Milligrams Are In 1455 grams?
First To Answer Gets Brainliest 3
Answer:
Grams to milli-grams
1455 = 1455000
Just multiply by 1000
Answer:
1455000 milligrams.
•Multiply the grams by 1000 to find milligrams
10. The ATP made during glycolysis is generated by A. Substrate-level phosphorylation B. Electron transport C. Photo phosphorylation D. Chemiosmosis E. Oxidation of NAD and NADH
Answer:
A. Substrate-level phosphorylation
Explanation:
Hope it helps!
a 2 Which characteristic is unique to invertebrates?
A.
B.
C.
D.
Answer:
A
they are immobile, correct
They are immobile are the characteristic is unique to invertebrates.
What are Invertebrates?
Animals without a backbone or skeletal skeleton are known as invertebrates.
They come in a variety of sizes, from tiny mites and nearly invisible flies to enormous squid with eyes the size of soccer balls. There are millions more species to be discovered after 1.25 million have already been identified, the most of which are insects.
Invertebrates are successful in part because of how quickly they reproduce. For instance, corals and sponges both produce eggs and sperm. Social insects like ants and bees produce eggs that can become workers without needing to be fertilized.
Therefore, They are immobile are the characteristic is unique to invertebrates.
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