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
Calculate the net force in Newtons of the following situation <-2N+->8N
Answer:
The correct answer is: + 6 N to the right side.
Explanation:
In this question, there are two opposite forces one towards the left and the second one towards the right. The left-pointing force value of 2 [N] while the other Force points to the right with a value of 8 [N].
In arithmetic representation it could be demonstarted or write as:
F = -2 + 8
F = + 6 [N]
The force pointing right side is more and will have the force of = 6 N
Help me please
These coal-powered factories had caused huge damage to the environment. As a result, the government enacted anti-pollution laws to preserve and protect the environment. Predict what would happen to the white-colored moth population when the environment is restored?
Answer:
it would drastically increase
Explanation:
Studies have shown that the increased amount of pollution has led to a drastic decline in the number of white-colored moths. Therefore, if pollution decreased and the environment was restored, then white-colored moths would once again thrive and their population would drastically increase. This is because, with less pollution, the white-colored moths are much harder for predators to see and are able to blend in easier with their surroundings. This therefore, allows them to survive long enough to reproduce.
What comes to mind when you hear the term “9 + 2?
my mind is blank totally blank
How did the results of Meselson and Stahl's experiment confirm that
DNA replication is semi-conservative? Describe the results in terms of
how replication occurs.
Answer: Meselson & Stahl reasoned that these experiments showed that DNA replication was semi-conservative: the DNA strands separate and each makes a copy of itself, so that each daughter molecule comprises one "old" and one "new" strand. The semi-conservative model, in which each strand of DNA serves as a template to make a new, complementary strand, seemed most likely based on DNA's structure. ... From the patterns of DNA labeling they saw, Meselson and Stahl confirmed that DNA is replicated semi-conservatively.
Explanation:
What makes human populations increase or decrease in size?
Define the following
Organism:
Population:
Community:
Ecosystem:
Biome:
Biosphere:
Answer:
Population: a group of an individual species
Community: a group of multiple species
Organism: A living thing
Ecosystem: ecosystems include more than a community of living organisms (biotic) interacting with the environment (abiotic)
Biome: a set of ecosystems sharing similar characteristics with their abiotic factors adapted to their environments.
Biosphere: the sum of all the ecosystems established on planet Earth. It is the living (and decaying) component of the earth system.
Explanation:
The definition of the given terms are as follows:
Organism: They may be defined as a living thing that has an organized structure and the ability to react to stimuli, reproduce, grow, adapt, and regulate the mechanism of homeostasis.Population: It may be defined as the group of individuals belonging to the same species living in the same area at a given time. What is Community?A community may be characterized as a group of individuals belonging to different species living in the same area at a given time.
An ecosystem may be defined as the place or an area where members of different species live together and interact with one another for the purpose of food, shelter, space, and mating partner.
A biome may be characterized as a very large ecosystem that is significantly running in nature in an unmanaged area. While the biosphere may be defined as the region of the Earth where life can be found, including the soil, water, and air.
Therefore, the definition of each term is well described above.
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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
Eukaryotic gene regulation takes place through the use of RNA-
binding proteins called ________
and
short regions of DNA that help position RNA polymerase called
_________.
At the organism level, ________.
control the differentiation and development of cells during
embryonic development.
Answer:
Hi your answers would be transcription factors, TATA boxes, and homeotic genes
Eukaryotic gene regulation takes place through the use of RNA- binding proteins called transcription factors and short regions of DNA that help position RNA polymerase called TATA boxes.
At the organism level, homeotic genes control the differentiation and development of cells during embryonic development.
Transcription factor:Transcription factors are proteins involved in the process of converting, or transcribing, DNA into RNA. Transcription factors include a wide number of proteins, excluding RNA polymerase, that initiate and regulate the transcription of genes. Regulation of transcription is the most common form of gene control.
Find more information about genes here:
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:))))))))))) I would appreciate the help
Describe at least two costs and two benefits of using a desalinization plant to obtain more freshwater?
Answer:
Advantages:
1. provide drinking water in desertic regions
2. excellent water quality
Disadvantages:
1. high cost to obtain freshwater
2. possible harmful effects on the aquatic ecosystem
Explanation:
Desalinization plants are centers that provide an independent source of water, critical for human needs. Desalination plants function to remove salt from seawater, thereby turning this water into potable drinking water, which is of vital importance for areas where freshwater is scarce (e.g., desertic regions). Moreover, desalinization plants meet (or even may exceed) standards for water quality because they are prepared to remove impurities (not only salts) from seawater. Nonetheless, desalinization plants may also exhibit disadvantages. In the first place, desalinization is an expensive process that requires an important amount of electricity to push water through a filter (desalinization occurs via reverse osmosis). Finally, desalinization plants may alter aquatic ecosystems in a negative way since the discharge of seawater modifies the salinity and decreases the oxygen levels in the water at the disposal site.
Compare and contrast the outer core and the inner core. Mention 2 differences between the two cores.
Answer:
The outer core is colder than the inner core, and they are both inside the Earth. The inner core is the deepest layer of Earth's layers.
Explanation:
Intercalated disks are found on the
muscle.
O a, striated
O b. nonstriated voluntary
O c. nonstriated involuntary
d. cardiac
The virus first hypothesis, suggests that:
a.
viruses evolved from the living cells
b.
viruses may have been the first self-replicating entities
c.
viruses originate from bacteria cells
d.
viruses don't evolve
Answer:
b.
viruses may have been the first self-replicating entities
Explanation:
The “virus-first” hypothesis states that viruses predated cells and contributed to the rise of cellular life. A significant proportion of all the viral genomes encode for genetic sequences that lack clear cellular homologs. Presence of such virus-specific sequences provides support to their unique origin.
Which form of weathering most likely caused the reddish coloring of the
rocks in the photo?
A Abrasion
B. Oxidation
c. Exfoliation
D. Carbonation
Answer:
According to my sources the answer is B
Explanation:
olease check these answer before submitting it <3
Answer:
B: Oxidation causes the reddish coloring
Question 42
1 pts
A man with type O blood has a child with a women who is tye AB. What is the probability
that they will have a child with type o blood?
O 100%
O 50%
O 0%
25%
based on the fossil evidence the correct sequence in which life evolves in PLEASSE HELPPP THIS IS A BIG GRADE
Answer: Fossil evidence that shows the correct sequence in which life evolves is B i think im not sure but im pretty sure its B
14. Cats have bones in their front legs that are similar to humans and also similar to the bones in the front flipper of a turtle. What do scientists hypothesize that
this means?
a These are homologous structures - they have similar structure despite their different functions and provide evidence that they evolved from a common ancestor.
b These are homologous structures - because of their different functions they do not provide evidence of a common ancestor and the limbs did not evolve from a single
common ancestor.
c These are analogous structures - they have similar structure despite their different functions and provide evidence that they evolved from a common ancestor.
d These are analogous structures - because of their different functions they do not provide evidence of a common ancestor and the limbs did not evolve from a single
common ancestor.
Accounts with not serious answers will be reported
Answer:
I believe that the answer is D.
Explanation:
This is because these organisms don't seem to evolve from a common ancestor but do seem to look similar.
During which process does heat transfer occur because of density differences in water or air?
A. Conduction
B. Pollution
C. Radiation
D. Convection
2. Explain your answer.
Answer: D. Convection
Explanation: As water's temperature increases in the presence of a heat source, it will become less dense and rise. As it moves up and away from the heat source, it cools and becomes denser and sinks.
Answer:
The correct answer is D. Convection.
Explanation:
Convection occurs due to the differences in density, and only happens in gases or liquids. The heat is transferred by the movement of a heated fluid, which is air or water.
Hope this helps! :)
PLS HELP WILLING TO GIVE BRAINLIEST
Answer:
1. In primary succession, newly exposed or newly formed rock is colonized by living things for the first time. In secondary succession, an area previously occupied by living things is disturbed then recolonized following the disturbance.
2. Primary and secondary succession occur after both human and natural events that cause drastic change in the makeup of an area.
3. Volcanic eruptions, Retreat of glaciers, Flooding accompanied by severe soil erosion, Landslides, Nuclear explosions, Oil spills.
Each chromosome has genes that control wing shape, body color, antenna type, and eye color.
a. True
b. False
Answer:
The correct answer is - True.
Explanation:
In a simplified drosophila or fruit fly genome, Each chromosome of the homologous pair of chromosomes has the genes for the body color, wing shape, antenna type, and eye color, and all are located on the same chromosome.
So on the basis of the explanation given above it is clear that in Drosophila or fruit flies it is true that Each chromosome has genes that control wing shape, body-color, antenna type, and eye color.
What do animals do with the carbon dioxide produced in their cells during cellular respiration?a.store it for later useb.reuse it during photosynthesisc.exhale it in the breathing processd.combine it with water to make sugar
Answer:
below
Explanation:
I'm pretty sure the answer is "exhale it in the breathing process"
Hope this helps! :)
Why do silent mutations not affect the protein that the gene encodes?
Answer: Silent mutations occur when the change of a single DNA nucleotide within a protein-coding portion of a gene does not affect the sequence of amino acids that make up the gene's protein. ... And when the amino acids of a protein stay the same, researchers believed, so do its structure and function.
how is carbon captured and stored by organisms? how is carbon passed through the ecosystem? how is carbon returned to the ecosystem?
Explanation:
i dont.know im in that qt
WILL NAME BRAINLYIST PLEASE HURRY
What are the three states of matter? What do the particles look like in each?
Answer:
Solid: Compact particles; no movement
Liquid: Particles can move but in a limited space
Gas: Rapid moving particles that move almost freely
Explanation:
Answer:
solid & liquid & gas
Explanation:
solid = hard
liquid = water
gas = air
Which of the following are similarities between meiosis and mitosis?
Check all that apply.
2 points
There are two rounds of division
DNA gets replicated during S stage of interphase
prophase, metaphase, anaphase, and telophase occur in that order
four haploid daughter cells are produced
Answer: DNA gets replicated during S stage of interphase
prophase, metaphase, anaphase, and telophase occur in that order
four haploid daughter cells are produced
Explanation:
Why are bryophytes considered the primary source of water
Sugar gliders and Northern flying squirrels are mammals that have many morphological similarities despite being genetically different.
a. True
b. False
The stages of mitosis were originally defined by cellular features observable through a light microscope.
a. True
b. False
Answer: TRUE
Explanation:
The cell division that takes place during the growth and development of an organism is in an as MITOSIS. Mitosis takes place in somatic cells that is, body cells that are not involved in the production of gametes. The difference stages of mitosis were originally defined by cellular features observable through a LIGHT MICROSCOPE. These stages includes:
--> PROPHASE: when viewed under a light microscope, each chromosome shortens and thickens and is seen to consist of two chromatids. The Centriole begin to separate.
--> METAPHASE: The nuclear membrane disappears, a spindle forms, the chromosomes line up across the middle of the cell and become attached to the spindle fibres at their centromeres.
--> ANAPHASE: The sister chromatids are pulled apart to opposite ends of cell as the spindle fibres contract.
--> TELOPHASE: A nuclear membrane forms around each set of chromatids, and the cell divides into two daughter cells.
what are some examples of heart healthy fats?
Answer:
Omega-3 fatty acids can help lower triglycerides, a type of fat that clogs arteries. Monounsaturatedfatsincludecanola,olive, and peanut oils. Other good sources are olives, avocados, nuts, and nut butters. These fats can help lower "bad" (LDL) cholesterol and raise "good" (HDL) cholesterol.
Explanation:
My dad takes omegas because he has high cholestrail which that also helps with heart problems.
What is the most important influence of the forest ecosystem on the environment
Answer:
Forests
Explanation:
Forests have also sanitary influences upon environment due to the production of oxygen through photosynthesis.
The study of the environment is called ecology. There are two types of factors for an ecosystem and these are a biotic and abiotic factors.
The correct answer is light
What is photosynthesis?The process of the formation of food by trapping the sunlight with the help of chloroplast is called photosynthesis.
According to the question, the most influential factor which affects the environment is light as all the plants directly depend on the light for the formation of food and all the other species are dependent on plants either directly or indirectly.
Hence, the correct answer is light.
For more information about the light, refer to the link:-
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