Answer:
Option 4, they are caused by UV radiation damage to thymines that are opposite each other on different DNA strands
Explanation:
Thymine dimer is formed on adjacent thymine and hence they lie next to each other on the same strand. They do not lie on strand that are opposite of each other on different DNA strand.
Hence, option 4 is correct
What produces gene flow?
ws
O mating between populations
O mutation
O geographical isolation
O speciation
Answer:
O mutation
Explanation:
please mark this answer as brainliest
What process takes place in meiosis but not mitosis?
A.
sister chromatids separating
B.
crossing over
C.
DNA replication
D.
DNA condensing into chromosomes
Answer:
A. sister chromatids separating
Answer:
will go for b. crossing over
Explanation:
"The daughter cells produced by mitosis are identical, whereas the daughter cells produced by meiosis are different because crossing over has occurred. The events that occur in meiosis but not mitosis include homologous chromosomes pairing up, crossing over, and lining up along the metaphase plate in tetrads."
[15 POINTS!!]
The diagram below shows a food web.
How would the removal of the rabbit population affect the other populations in the ecosystem?
A. The field mouse population will decrease.
B. The snake population will increase
C. The lizard population will increase.
D. The tree population will decrease
Answer:
C. because the grasshopper will have less competition to eat Grass letting them reproduce more, since the grasshopper's population increases there will be more food for the lizards helping them reproduce more.
what is Classification?
Take 50 points
Answer:Classification, in biology, the establishment of a system of categories on the basis of presumed relationships among organisms. The science of biological classification is commonly called taxonomy.
Answer:
Thanks
Explanation:
Thanks
Pls help I’m failing
Answer:
C.
Explanation:
Not A. because it didn't mention that (and it's not true)
Not B. because that wasn't mentioned (and common sense tells you it incorrect)
C. because it was mentioned (differently) and it made perfect sense
Not D. because it didn't even talk about how many letters (or sounds) there was to be true (plus look at A. above)
HELPPP PLS i need helppp
Answer:
is this a genetic diagram u need to be filled out or nah?
A species of moth lived in a forest with a mixture of dark- and light-colored trees. The coloring of these moths is inherited. The dark moths were hidden from predators on the dark trees, and the light moths were hidden on the light trees.
When the light-colored trees were killed by a disease, the forest was suddenly made up almost entirely of dark trees. Generations later, almost all the moths had the dark coloring. Which of the following gives a correct explanation?
Answer: The light moths that survived did not mate and have offspring because they thought that their offspring would easily be seen and eaten by predators.
The light moths that survived had dark offspring because the change in the environment caused the parents to decide to have offspring that would do better in the changed environment.
The light moths saw that the dark moths were less likely to be eaten by predators, so they made themselves dark as well.
The dark moths were better hidden from predators, so more of them survived. Because dark parents outnumbered light parents, there were many more dark offspring than light offspring in the next generation.
Explanation:
Taking two aspects of their relationship, explain how the marriage of the Prophet and Khadija set a good example for Muslim marriages today?
Answer:
Due to their behaviour towards each other.
Explanation:
The marriage of the Prophet and Khadija set a good example for Muslim marriages today because their strong relationship and respect towards each other is the key to their beautiful marriage life. In marriage life, both husband and wife has great contribution to their relationship. If both husband and wife respect each other and support in every situation of life so their relationship will be strong and they live a beautiful marriage life so we can say that the marriage life of Prophet (S.A.W) and Khadija is a good example for all Muslims.
Match the following terms to their definitions. Match the words in the left column to the appropriate blanks in the sentences on the right. Make certain each sentence is complete before submitting your answer. Words can be used more than once. ResetHelp Diverging circuit Converging circuit Reverberating circuit Parallel after-discharge circuit 1. : One incoming axon triggers responses in ever-increasing numbers farther and farther along the circuit. 2. : May be involved in complex, exacting types of mental processing. 3. : Involved in control of rhythmic activities such as breathing. 4. : Involved in activating fibers of a skeletal muscle such as the biceps muscle. 5. : Different types of sensory input can have the same ultimate effect.
Answer:
1. Diverging circuit.
2. Parallel after-discharge circuit.
3. Reverberating circuit.
4. Diverging circuit.
5. Converging circuit.
Explanation:
A sensory system can be defined as components of the central nervous system (CNS) which comprises of the brain, neural tissues or pathways and sensory neurons responsible for sensory functions, perception and processing sensory informations such as sound, light, heat, etc.
Basically, the central nervous system (CNS) interprete the neural signals that are generated from stimuli that are detected by the sensory system. The five (5) main sense organs in the sensory system are: skin, tongue, ears, nose and the eyes.
Generally, the nervous system found in living organisms such as humans, comprises of two (2) major components or systems; a central nervous system (CNS) and a peripheral nervous system (PNS).
A neural circuit can be defined as a group of neurons in the body of a living organism which are interconnected by synapses to perform specific functions when they're activated.
There are four (4) main types of neural circuits used for performing specific neural functions in the body of a living organism, these includes;
1. Diverging circuit: one incoming axon triggers responses in ever-increasing numbers farther and farther along the circuit. For example, a neuron that stimulates thousands of cells such as sensory pathway to the central nervous system (CNS).
2. Parallel after-discharge circuit: may be involved in complex, exacting types of mental processing. For example, it used in reflex arcs, mathematics and logic.
3. Reverberating circuit: involved in control of rhythmic activities such as breathing and as such it's repetitive in nature. For example, short-term memory, sleep cycle, etc.
4. Diverging circuit: involved in activating fibers of a skeletal muscle such as the biceps muscle.
5. Converging circuit: different types of sensory input can have the same ultimate effect. For example, the regulation of the somatic motor neuron.
PLEASE HELP WILL GIVE 20PTS AND WILL MARK BRAINLIEST FOR RIGHT ANSWER!!!
Water can be formed from the synthesis reaction of hydrogen with oxygen:
2 H2 (g) + O2 (g) → 2 H2O (g)
The complete reaction of 5.12 Liters of O2 with excess hydrogen produces how many moles of H2O?
A) 10.24 moles H2O
B) 114.7 moles H2O
C) 0.457 moles H2O
D) 5.12 moles H2O
Answer:
Explanation:
[2ΔSf(H2O (g))] - [2ΔSf(H2 (g)) + 1ΔSf(O2 (g))]
[2(188.72)] - [2(130.59) + 1(205.03)] = -88.77 J/
The predicted values for the four phenotypes form a ratio. The simulated values match this predicted ratio.
Answer:
9:3:3:1 ; approximately
Explanation:
Just did it
Which part of the electromagnetic spectrum was used by Galileo when he looked through a telescope and saw light from the stars with his eyes?
O gamma radiation
radio waves
visible-light
0 X-rays
Answer:
visible
Explanation:
where the input molecules of respiration come from
Answer:
see the explanation
Explanation:
Most of the steps of cellular respiration take place in the mitochondria. Oxygen and glucose are both reactants in the process of cellular respiration. The main product of cellular respiration is ATP; waste products include carbon dioxide and water.
what is infencious disease
Answer:
Infectious diseases are diseases caused by living organisms like viruses and bacteria. They can be passed from person to person through body secretions, insects or other means. Examples are SARS, influenza, the common cold, tuberculosis (TB), Hepatitis A and B.
Creating a checklist of activities is not a helpful strategy for determining what to study for an upcoming test. Please select the best answer from the choices provided T F
Answer:
ture
Explanation:
Answer:
true
Explanation:
edge 2021
The antibiotic rifampicin blocks transcription in many bacteria. In the presence of the antibiotic, adding sigma factor has no stimulating effect on RNA synthesis. A footprinting experiment on a rifamycin treated sample shows that the polymerase remains located at the promoter site in the presence of eNTPs and Mg2 ion. What step of transcription is rifamycin likely to block
Answer:
transcription initiation
Explanation:
Transcription is a process by which genetic information from DNA is used to synthesize an RNA molecule, usually, a messenger RNA (mRNA), which is subsequently utilized to synthesize a protein by a process called translation. Transcription in prokaryotes has three steps:
1-Initiation: the RNA polymerase is a multisubunit enzyme (holoenzyme) composed of two α, one β, one β’ and one ω and σ subunits (α2ββ’ωσ). This holoenzyme binds to the promoter region of the template DNA strand.
2-Elongation. The sigma σ factor of the holoenzyme is released and the complex and the core enzyme (α2 ββω) moves along the template strand, thereby producing an mRNA sequence
3-Termination. This step can be Rho-dependent, where a protein named "Rho" recognizes the termination site and stop transcription, and Rho-independent (transcription continues until the termination sequence is reached).
In consequence, Rifamycin is likely to block the initiation of transcription because the core RNA enzyme needs to bind the sigma factor (σ) for initiation of transcription in bacteria.
Plsss help got to submitted today
Answer:
One interaction is between the deer and the grass the deer eats the grass and energy is transferred and then the mountain lions eats the deer and the deer's energy is transferred to the mountain lion
Explanation:
hears your answer :D
The table shows data Chargaff collected on DNA nitrogenous bases in five organisms.
Percentages of Bases in Five Organisms
Source of DNA A T G C
Streptococcus 29.8 31.6 20.5 18.0
Yeast 31.3 32.9 18.7 17.1
Herring 27.8 27.5 22.2 22.6
Human 30.9 29.4 19.9 19.8
E.coli 24.7 23.6 26.0 25.7
Which statement did Chargaff conclude based on these data? Note that a letter in brackets, such as [A] or [C], refers to the concentration of one of the nitrogenous bases.
A. in DNA molecules, [T] > [A] > [G] > [C]
B. in DNA molecules [A] = [G], and [C ] = [T]
C. in DNA molecules, [A] = [T], and [C ] = [G]
D. in single-stranded DNA molecules, [A] = [T] = [C ] = [G]
Answer: in DNA molecules, [A] = [T], and [C ] = [G]
Explanation:
what is lenticles?
Take 50 points
Answer:
A lenticel is a porous tissue consisting of cells with large intercellular spaces in the periderm of the secondarily thickened organs and the bark of woody stems and roots of dicotyledonous flowering plants.
Explanation:
What is the speed of a runner who travels 20m in 10s?
Answer:
2m/s
Explanation:
speed =distance ÷time
Which is the most likely cause of tropical storms?
A - Water runoff from the land fuels storm clouds.
B - High Pressure air causes storm clouds to form.
C - Sea breeze close to shore push storm clouds together.
D - Warm water evaporates, rises quickly, and interacts with a colder air mass
12. What is the energy released from respiration?
Answer:
Carbon Dioxide
Explanation:
During cellular respiration, glucose and oxygen are converted into carbon dioxide.
Is there a human carrying capacity on Earth? Explain why or why not.
Answer: Every species has a carrying capacity, even humans. However, it is very difficult for ecologists to calculate human carrying capacity. Humans are a complex species. We do not reproduce, consume resources, and interact with our living environment uniformly.
HOPE THIS HELPS
Which of the following solutions would best address the issues of greatest concern in the community?
Construction of a seawall
Answer:
Construction of an offshore breakwater
Explanation:
A beach community was recently negatively affected by a hurricane. Community leaders are looking for a potential solution to prevent damage from future hurricanes. Below is a list of their concerns as well as how important each issue is to the community.
Community Concerns Concern Level
Wave action Low
Beachfront development Low
Nearshore aquaculture Low
Health of nearby coral reef Moderate
Roosting bird species High
Storm surge threat High
Construction of an offshore breakwater
Visit the link below and use the information to answer the following question.
Ecological Succession: Transformation of Communities over Time
Why does secondary succession occur faster than primary succession?
Answer:
Because there is already presence of soil and nutrients in secondary succession
Explanation:
Ecological succession, which is the series of gradual change that occurs in a community over time, can be of two forms namely: primary succession and secondary succession.
- Primary succession is a kind of succession that occurs in a barren land where no form of life has existed before while secondary succession occurs on a land that has been previously colonized by certain organisms called PIONEER SPECIES, and hence, a substrate containing nutrients called SOIL for growth is available during secondary succession.
This accounts for the reason the secondary succession is faster than the primary succession because there is already presence of soil and nutrients in secondary succession.
Answer:
Soil with nutrients is already present. Seeds are present from earlier occupants, brought in by wind, and/or germinate after fire.
Explanation:
Edge 2021
What is the answer to that question
Answer:
D. Steps to use for doing the Heimlich maneuver
Explanation:
That's what the section is talking about.
2. Which is a function of the cardiovascular system? *
convert oxygen and glucose into ATP (energy)
O convert oxygen into glucose
O carry oxygen and glucose to body cells
O store oxygen and glucose in the blood
The fossil record indicates that in some cases reasonably well-defined species appear suddenly and remain unchanged for a long time before they become extinct. This phenomenon is referred to as
Answer:
The correct answer is - punctuated equilibrium.
Explanation:
The phenomena represent punctuated equilibrium, according to which the new well-defined species appear suddenly and quickly. These species remain unchanged for a long time as they occur because of mutations in genes.
This phenomenon suggests that once it made in the fossil record the population becomes stable for a long time until they become extinct and have to adapt to the changes take place to survive.
what are the functions of bioreactor?
Answer:
The pricipal function of a accuretely designed bioreactor is to give a controlled environment to achieve optimal growth and/or product formation in the particular cell system employed.
following the laws of Convervation of matter, 10 grams of iron combined with 5 grams of sulfur will yield _____ grams of iron sulfide
Answer:
15
Explanation:
Since the law of conservation of mass applies to all the chemical reactions this will also end in 10+5 equalling 15 grams