Answer: A. adriatic sea B. black sea C. sea of okhotsk D. north sea.
what results from sea-floor spreading? please help
Answer:
The crust cracking.
Explanation:
Seafloor spreading is a geologic process in which tectonic plates—large slabs of Earth's lithosphere—split apart from each other. ... The less-dense material rises, often forming a mountain or elevated area of the seafloor.
Answer:
Seafloor spreading creates new oceanic crust at a mid-ocean ridge.
Explanation:
When this new material reaches the end of the plate and comes into contact with another plate, whether continental or not, a convergent or a transform boundary will occur.
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What is the normal/average pH level of lake in a healthy ecosystem?
Usually fresh water lakes have a pH range between 6.5 to 8.5, this is appropiate for many organisms life and development.
A car is accelerating from rest at a constant rate. The net force acting on the car is increasing true or false
Answer:
False
Explanation:
because if it were increasing then the car would be increasing
I hope this helped you
Identify the type of wave shown in the images above.
Longitudinal wave
elliptical wave
asymmetric wave
transverse wave
Answer:
transverse wave
Explanation:
The particles of medium are moving perpendicular to the direction of wave i.e. particles of medium are moving up and down forming crest and trough and wave is propagation in forward direction
Which of the following is a characteristic of phloem cells?
(A) contain cytoplasm at maturity and used to transport water from the roots to
the rest of the plant
(B) contain cytoplasm at maturity and used to transport sugars throughout the
plant
(C) lack cytoplasm at maturity and used to transport water from the roots to the
rest of the plant
(D) lack cytoplasm at maturity and used to transport sugars throughout the plant
Answer:
Phloem is the vascular tissue responsible for the transport of sugars from source tissues
Remnants of osteons, which have been almost completely recycled by osteoclasts, are known as __________
Answer:
Lamellae
Explanation:
These lamellae are remnants of osteons whose matrix components have been almost completely recycles by osteoclasts. growth of the bone.
a helium atom contains 2 protons, 2 electrons, and 2 neutrons. Which would be considered an Isotope of heliuma. an atom with 2 protons , 1 electron and 2 neutronsb.all of thesec. an atom with 2 protons 2 electrons 1 neutron d. an atom with 1 proton 2 electrons 2 neutrons
Isotopes are different forms from the same element, they have the same number of protons but differ in the number of neutrons in their nuclei, this makes them have different atomic mass, altough their chemical properties remain the same.
Helium contains 2 protons, 2 electrons, and 2 neutrons.
Of the listed options, only c. has a different number of neutrons than the described atom. So this option represents an Isotope of Helium.
PLEASE HELP ME BRAINLY IF CORRECT!!!!!! PLEASE
The rock shown below has a layering of black and white
bands. The light bands and dark bands contain different
mineral crystals.
In what type of environment did this rock sample most likely form?
A. At the bottom the ocean
B. Just below Earth's surface, near an active volcano
C. Aboveground
D. Deep below ground, after being exposed to extreme heat and pressure
D. deep below ground, after being exposed to extreme heat and pressure
Answer:
It D. Deep below ground, after being exposed to extreme heat and pressure
Explanation:
I hope it helps
IF your confued with the other one.
What evidence did Wallace claim shows
that new species are modified forms of
old species?
Answer:
Read Below
Explanation:
Wallace is often referred to as the father of modern biogeography. 6. The finger bones inside manatee and whale flippers are evidence that these living species are modified forms of older species.
Which of the following best describe how genes allow cells to carry out essential life functions?
Choose 2 answers:
Choose 2 answers:
(Choice A)
A
Genes encode molecules that are necessary for cell specialization.
(Choice B)
B
Genes can code for proteins.
(Choice C)
C
Genes can code for nucleotides, which help to determine the specialized roles of organelles in the cell.
Answer:
(Choice A)
A
Genes encode molecules that are necessary for cell specialization.
(Choice B)
B
Genes can code for proteins.
Both A and B are correct. Genes are segments of DNA that carry the genetic information necessary for the cell to carry out essential life functions. The genetic code in the genes is transcribed into RNA, which is then translated into proteins. Proteins are essential molecules that carry out a wide range of functions in the cell, such as catalyzing metabolic reactions, replicating DNA, responding to stimuli, and transporting molecules across cell membranes. They also play a critical role in cell specialization by controlling the differentiation of cells and the formation of tissues and organs.
methylation regulates transcription a. via the addition of a methyl group to cytosine bases of dna. b. via the addition of a methyl group to cytosine residues on rna polymerase ii. c. via the addition of a methyl group to cysteine residues on rna polymerase ii. d. via the addition of a methyl group to cysteine bases of dna.
Option A, methylation regulates transcription via the addition of a methyl group to cytosine bases of DNA.
DNA methylation controls gene expression by attracting proteins implicated in gene repression or by preventing transcription factor(s) from binding to DNA. De novo DNA methylation and demethylation both play active roles in the dynamic process that alters the pattern of DNA methylation in the genome during development. DNA methylation, in general, inhibits transcription, and loss of methylation is linked to gene activation. In rare circumstances, DNA methylation might directly obstruct the binding of transcription factors.
The complete question is:
Methylation regulates transcription
a. via the addition of a methyl group to cytosine bases of DNA
b. via the addition of a methyl group to cysteine residues on RNA polymerase II
c. via the addition of a methyl group to cysteine basses of DNA
d. via the addition of a methyl group to cytosine resides on RNA polymerase II
e. by interfering with the chromatin remodeling process
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Which part of the virus houses the nucleic acid?
a) nucleus
b) capsid
c) nucleoid
d) plasmid
Answer:
The answer is b) capsid.
Explanation:
Answer:
b) capsid
Explanation:
Some one help please!! Im timed Will mark Brianlyest
Answer:
water table
Explanation:
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An element has a half-life of 30 years. If 20 mg of this element decays over a period of 90 years, how many mg of this element would remain?
Answer:
2.5 mg
Explanation:
The half-life of a substance is the time required for one half of the substance to decay. In order words, it is the time it will take for a substance to decay into half of its initial size.
For a 20 mg element with a half-life of 30 which decays over a period of 90 years;
The first 30 years, 10 mg would have decayed, remaining 10 mg
The second 30 years, the remaining 10 mg would have decayed to 5 mg
The third 30 years, 5mg would have decayed to 2.5 mg.
Hence, in 90 years, 20 mg of the element would remain only 2.5 mg.
What iS one reason scientists have a developed a system to classify organisms?
• Classification allows for organisms to interbreed and change.
• A system was needed to better track genetic changes in an organism.
Classification allows for better identification of new organisms.
A system was needed to see microscopic organisms with more detail.
• Classification allows for organisms to interbreed and change.
• A system was needed to better track genetic changes in an organism.
Classification allows for better identification of new organisms.
A system was needed to see microscopic organisms with more detail.
Flowering plants reproduce from seeds.
Which role does an apple play in this process?
Answer: An Apple is a mature ovary, called a fruit
The function of a fruit is to protect developing
seeds!
Explanation:
biodiversity hot spots are found around the world. why can't scientists are come up with a single solution to protect all these areas?
Answer:
The reason scientists cannot come up with a solution to protect all the areas is because every hot spot is different , and the negative influence of people may be greater in some places more than others
Explanation:
Some hot spots are under a greater threat than others. Costs must be balanced with the number of species that can be saved.
Biodiversity hotspots are found in different ecosystems and geographical areas, and thereby strategies for the conservation and protection of these biogeographical regions must be studied case by case.
A biodiversity hotspot can be defined as a biogeographic region characterized by having exceptionally high levels of biological diversity, being thus of evolutionary importance for its conservation.Biodiversity hotspots are also characterized to have a high number of endemic species and/or unique taxa.Some examples of biodiversity hotspots include the Atlantic Forest (Brazil), the Caribbean Islands; Madagascar island, the California Coast, the upper Amazonia/Guyana Shield, the Congo Basin, etc. All these biodiversity hotspots exhibit unique ecosystems and physical characteristics.In consequence, strategies for biological and/or ecological conservation must be different to protect the natural resources in different biodiversity hotspots.
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Which two cell parts are most likely found in both types of cell?
Answer:
Nucleus and Cell membrane
If u dont believe me search it up.
Answer:
Nucleus and Cell membrane
Explanation:
Do organisms breathe or eat for energy? Explain.
Answer:
Eat
Explanation:
The food has stored energy, which is released during respiration. Therefore, all living organisms respire to get energy from food.
Pls help quick plzzzzzzzz
1. Flowers must rely on vectors to move pollen. These vectors can include wind, water, birds, insects, butterflies, bats, and other animals that visit flowers. We call animals or insects that transfer pollen from plant to plant “pollinators”.
2. Germination:When a seed falls on the ground, it needs warmth and water in order to germinate; some seeds also need light. Dicots have seed coats that soften with moisture. After being planted in the soil for a few days, the seed absorbs water and swells until the seed coat splits.
) a mutation within the gal80 gene that blocks the ability of gal80 protein to interact with gal3p. (d) a deletion of one of the four uasg elements upstream from the gal1 gene. (e) a point mutation in the gal1 core promoter that alters the sequence of the tata box
The gal80 gene that blocks the ability of gal80 protein to interact with gal3p by the activation of gal80 gene.
In Saccharomyces cerevisiae, galactose turns on the allosteric sign transducer Gal3 protein (Gal3p), which in flip inactivates the repressor Gal80p, thereby activating the Gal4p-established transcriptional activation of GAL genetic switch.
If the GAL80 gene product can not engage with Gal3p, there may be no interplay with the Gal4p/Gal80p complicated and consequently no GAL1 transcription. In the absence of galactose, Gal80 binds to and inhibits the transcriptional activation domain (AD) of the GAL gene activator, Gal4, stopping GAL gene expression. Galactose triggers an affiliation among Gal3 and Gal80, relieving Gal80 inhibition of Gal4.
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Question 2 (0.5 points) In the Northern Hemisphere, choose ALL that apply Summer solstice occurs when the Earth's North Pole is tilted toward the sun, longest day. Summer solstice occurs when the Earth's North Pole is tilted away from the sun shortest day. Winter solstice occurs when the Earth's North Pole is tilted away from the sun. shortest day. Winter solstice occurs when the Earth's North Pole is tilted toward the sun. longest day.
Answer:
In North America, around June 21, Earth tilts on its axis toward the sun, which is Summer Solstice and when the Northern Hemisphere has the most daylight of any time of year. Winter solstice the Northern Hemisphere tilts the farthest away from the sun and when we have the least amount of daylight of any time of the year.
Explanation:
As Earth revolves around the Sun, it rotates on its axis. Sometimes Earth tilts toward the Sun which is when Summer occurs. In the Winter Earth tilts away from the Sun.
In the northern hemisphere summer solstice occurs when the earth north pole is tilted towards the sun, longest day and winter solstice when the earth north pole is tilted away from the sun shortest day . Thus both the option a and c are correct.
What are solstices?Solstices occurs when earth is pointed directly towards the sun. This incident happens twice a year during earth's orbit.
On June 21 the north pole is tilted 23.5 degree towards sun and the northern hemisphere experience summer solstices which is known as longest day of the northern hemisphere year.
On 21 June, the southern hemisphere is tilted 23.5 degree away from sun and southern regions of earth experience the shortest day of the year which is known as winter solstices.
Therefore In the northern hemisphere summer solstice occurs when the earth north pole is tilted towards the sun, longest day and winter solstice when the earth north pole is tilted away from the sun shortest day . Thus both the option a and c are correct.
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Where are the muscles that allow the fingers to bend or straighten?
A.In the forearm
B. In the upper arm
C. In the hand
Can somebody help me me !!!
which problem causes the brain's temperature regulatory center to fail?
The problem that causes the brain's temperature regulatory center to fail is known as thermoregulatory dysfunction. Thermoregulatory dysfunction refers to a condition where the brain's ability to regulate body temperature becomes impaired.
The brain's temperature regulatory center, located in the hypothalamus, normally helps maintain the body's temperature within a narrow range through processes like vasodilation, sweating, and shivering.
Various factors can lead to thermoregulatory dysfunction, including medical conditions, neurological disorders, medications, hormonal imbalances, and damage to the hypothalamus or its surrounding structures. Examples of conditions that can affect thermoregulation include heat stroke, hypothermia, certain types of brain injury, hypothalamic dysfunction, and autonomic nervous system disorders.
When the brain's temperature regulatory center fails to function properly, individuals may experience difficulties in adapting to changes in environmental temperature, resulting in overheating (hyperthermia) or excessive cooling (hypothermia). This dysfunction can have serious health implications and requires medical attention to address the underlying cause and manage the body's temperature effectively.
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what are the pros/cons of building trees using a bioinformatics approach? compare and contrast this method to the other methods we have used to build trees in this class. are there certain methods that are more useful for certain types of data?
A significant advantage is that it forces the conversation of all possible outcomes of a decision and traces each path to a conclusion. The most widely used machine learning algorithms in bioinformatics and statistical genetics use tree-based techniques like decision trees.
What about bioinformatics approach?Bioinformatics approaches to AMR research can be broadly divided into two groups: those that examine the underlying molecular causes of AMR and those that concentrate on quick and accurate predictions of AMR to be implemented in clinical settings. This course serves as an interdisciplinary introduction to computational techniques that are utilized to address significant issues in DNA and protein sequence analysis.Although the course's main focus is algorithms, it also contains readings that give science and engineering students the required biological background.The interdisciplinary study of biology, computer science, and information technology is known as bioinformatics. The computer-aided study of biology and genetics is known as bioinformatics. In other words, it alludes to the study of genetics and other biological data using computers.Molecular biology and plant genetic resources are two areas where the science of bioinformatics is currently gaining prominence. Identification of genes and proteins, as well as their activities, evolutionary links, and conformation prediction, are the main goals. The utility of historical data is greatly increased by bioinformatics tools because they allow researchers to filter through vast amounts of data from several studies and discover new connections.Learn more about bioinformatics approach here:
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The muscle that originates on the sacrum and transverse process of each vertebra and inserts on the spinous process of the third or fourth more superior vertebra is the ________ muscle. Group of answer choices quadratus lumborum interspinalis semispinalis
Answer:
multifidus muscle
Explanation:
Multifidus is a group of smaller muscles located near the spine (anteriorly among cervical paraspinal muscles) that extend, flex and rotate the spine. This muscle (multifidus) is an important stabilizer of the spine by stabilizing the joints at each segmental level. The multifidus muscle controls the erection of the spine and stabilization during its movements and the movement of the extremities.
In which situations will the particle stop momentarily?
Particles can stop momentarily in different situations, depending on the physical forces acting on them.
Here are some examples:
Projectile motion: A particle thrown upwards will stop momentarily at the highest point of its trajectory before falling back down due to the force of gravity.
Simple harmonic motion: A particle undergoing simple harmonic motion will stop momentarily at the two extreme points of its motion, known as the amplitude points.
Collision: A particle that collides with a stationary object can stop momentarily before bouncing back due to the transfer of kinetic energy.
Brownian motion: A particle undergoing Brownian motion in a fluid will stop momentarily when it collides with other particles or the walls of the container.
Electromagnetic force: Charged particles can stop momentarily when they interact with electric or magnetic fields, as the forces acting on them can cause them to come to a temporary halt.
In each of these situations, the particle stops momentarily due to the balance or cancellation of the physical forces acting on it. However, the duration of the stoppage can vary widely depending on the specific circumstances of the situation.
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how are enzymes, proteins, and amino acids related, and what is their role in a viral take over?
Answer:
Amino acids are building blocks to proteins, and the combination and order of them determines what protein is actually being built. Then enzymes are a type of protein which facilitates or catalyses a process, such as the breaking down of molecules in your food. In a viral takeover, the virus uses your body's ribosomes to create viral proteins (consisting of amino acids). Viral enzymes actualy facilitate this by inserting viral DNA into the hostcell's DNA.
Explanation:
how many dna molecules would there be after four rounds of pcr if the initial reaction mixture contained two molecules?
If two molecules are multiplied by four times, forty DNA molecules are created; similarly, if two molecules were present in the initial reaction mixture, there would be thirty-two DNA molecules following four rounds of .
How many DNA molecules are there?The nucleotides that make up DNA are chemical building blocks. Phosphate groups, sugar groups, and one of four different nitrogen bases make up the three components that make up these building blocks.
what are The 5 components of DNA ?Carbon, nitrogen, chlorine, phosphorous, and hydrogen are the five atoms that make up DNA's building blocks. These atoms are combined to form a nucleoside, which consists of a phosphate group and the deoxyribose sugar molecule (which gives DNA its name), which has five carbons.
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DNA contains instructions for making the different molecules, such as proteins, that a cell needs to grow and function. To use these instructions, the DNA must first be_____ into_______.
Answer:
Transcribed
mRNA
Explanation:
DNA contains instructions for making the different molecules, such as proteins, that a cell needs to grow and function. To use these instructions, the DNA must first be transcribed into mRNA.