How do polar bear adapt to its environment?
Answers
Answer:
Polar bears have thick fur coats that help keep them keep warm in cold conditions. They have a dense layer of fur close to the skin and an outer layer of longer fur. The inner layer isulates them against the cold. ... The skin underneath their fur is black and absorbs the heat from sunlight, helping them stay warm.
Explanation:
The way polar bears adapt to their environment is because of their thick warm coat.
Related Questions
Which factor best explains why liquid water exists on earth
Answers
Answer:
due to atmospheric pressure
Answer:
Atmospheric pressure
Explanation:The only planet that have water bodies is earth. We know that water is one of the important factors for all living organism. Liquid water exists on the earth's surface is due to the atmospheric pressure
Which 3-carbon molecule is one of the final products of glycolysis? (1 point)
oxaloacetic acid
NAD+
O pyruvic acid
O ADP
Answers
Answer:
pyruvic acid
Explanation:
Glycolysis involves the breaking of glucose molecule into two molecules of a 3-carbon compound called pyruvate (pyruvic acid) & two other molecules of ATP
Through a sequence of processes known as glycolysis, glucose is divided into two pyruvate molecules, each of which has three carbons. Thus, option C is correct.
What is the significance of glycolysis?Glycolysis is the metabolic process by which glucose produces cellular energy, glycolysis is significant.
The most crucial source of energy for all living things is glucose. Most cells in the human body prefer glucose as a fuel because red blood cells cannot use anything else.
Most living things engage in some form of glycolysis. It represents the initial phase of cellular respiration.
It is a glycolysis route that results in the partial conversion of pyruvate from glucose. The common mechanism for both aerobic and anaerobic respiration is glycolysis.
Therefore, pyruvic acid is a 3-carbon molecule which is the final products of glycolysis.
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12a. If atoms get rid of electrons, they develop
_charge (+, -, no)
Answers
Answer
+, or positively charged.
Explanation:
If atoms are stable then they are neutral. If they lose electrons, then they lose negativity, and are more positive, so they develop positive charge.
What criteria can be used to evaluate whether development is sustainable?
Answers
Answer:
Cuando hablamos de criterios sostenibles nos referimos a aquellas pautas que evitan o, en su defecto, minimizan el impacto ambiental, económico y social producido por la acción antrópica (en adelante Acción) que se esté planificando, desarrollando o explotando.
Explanation:
The lithosphere is so hot, rocks found there are melted and flow. A true B falce
Answers
Answer:True
Explanation:the lithosphere average ls about 100 kilometers in thickness it is like a eggshell compared to earth total radius making rocks dissolve or melt
Which blood vessles would constrict quickly if you walked outside into a cold windy winter day without putting on extra layers of clothing?
Answers
Blood vessels to the skin would constrict quickly if you walked outside into a cold windy winter day without putting on extra layers of clothing.
The vessels that supply blood to the skin constrict or narrow in response to cold temperatures. This reaction, called "vasoconstriction," decreases blood flow to the skin, which helps to minimize heat loss from the warm blood and therefore preserve a normal internal or "core" temperature.
In warm temperatures, these same blood vessels dilate or widen, increasing the flow of blood to the skin surface, thus allowing heat to leave the body, and keeping the core body temperature from rising to a dangerous level.
The blood vessels in the skin that react to temperature changes are called "thermoregulatory" vessels. They are primarily controlled by the sympathetic nervous system, which is the same system that reacts when we are stressed or upset emotionally. This explains why both cold and emotional stress can trigger vasoconstriction of these blood vessels, causing cold fingers and toes.
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No links please im already failing
Answers
Answer:
Think its the last one
The paper is still paper, the wall is still a wall just painted, and the ice melted is still water like it was before it was just frozen.
Hope this helps
8(b)(i). Diagram 8.2 shows part of the Periodic Table. State the type of
element for P. *
Answers
Answer:
Phosphorus
Phosphorus is a chemical element with the symbol P and atomic number 15. Elemental phosphorus exists in two major forms, white phosphorus and red phosphorus, but because it is highly reactive, phosphorus is never found as a free element on Earth.
Explanation:
Brainliest?
why is the human effective population size so much smaller than the human census population? group of answer choices there is non-random mating among humans not everybody contributes equally to next generation human populations went through bottlenecks all of the above none of the above
Answers
"All of the above" (Option E) are reasons why the human effective population size is smaller than the human census population.
The effective population size is a measure of the number of individuals in a population who contribute offspring to the next generation, while the census population is a count of all individuals in a population, regardless of their reproductive contribution. Non-random mating, unequal contributions to the next generation, and past population bottlenecks can all reduce the effective population size compared to the census population. For example, if a small subset of individuals within a population contributes disproportionately to the next generation, the effective population size would be much smaller than the census population. Similarly, if a population went through a bottleneck event in the past, the effective population size would be smaller as well.
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A plant or animal from one area or country is brought to a new area or country where it does not usually live. What do you think could happen to the species or the environment when this happens?
Answers
the species has to learn how to adapt in that environment and may or may not survive. what happens to the economy is it also has to adapt to the species and it could harm it or help it depending on what the species is.
>:( im mad. y am i mad its bc i had to tell a officer that she was 18 and that she was lying saying she was 14 >:(
Answers
Answer:
Dangg thats tuff :(
Explanation:
tuff- you should be able to tell by her looks dude
(i know it's a joke-)
~iwa-chan
what is metamorphosis?? explain.
Answers
Answer:
in an insect or amphibian) the process of transformation from an immature form to an adult form in two or more distinct stages.
Explanation:
Answer:
(In an insect or amphibian) the process of transformation from an immature form to an adult form in two or more distinct stages.
Explanation:
which of the following best explains the mechanism by which chromosomes in a eukaryotic cell are replicated only once per cell cycle ? group of answer choices the cell controls the concentration of nucleotides available for dna synthesis. the cell allows dna to be replicated only if it lacks damage. the cell phosphorylates proteins that are required to prepare an origin of replication to initiate dna replication. the cell controls synthesis of machinery required to make more proteins. the cell synthesizes cki's that block cyclin/cdk activity after initiation of dna replication.
Answers
The best explanation for the mechanism by which chromosomes in a eukaryotic cell are replicated only once per cell cycle is:
E. The cell synthesizes CKIs that block cyclin/CDK activity after initiation of DNA replication.
CDKs (cyclin-dependent kinases) are key regulators of the cell cycle, which are activated by binding to specific cyclin proteins. During the G1 phase of the cell cycle, CDK activity is low, allowing for the preparation of the DNA replication machinery, including the licensing of origins of replication. During the S phase, CDK activity increases, triggering the initiation of DNA replication at the licensed origins. However, to ensure that chromosomes are replicated only once per cell cycle, the cell synthesizes CKIs (CDK inhibitors), which bind to and inhibit the activity of cyclin/CDK complexes after DNA replication has been initiated. This blocks the initiation of additional rounds of DNA replication, preventing over-replication and ensuring that each chromosome is replicated only once per cell cycle.
Therefore, the synthesis of CKIs is a crucial mechanism that allows eukaryotic cells to control DNA replication and maintain genome stability by ensuring that chromosomes are replicated only once per cell cycle. The other options presented do not fully explain how the cell is able to ensure that DNA replication occurs only once per cell cycle.
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what type of bone tissue makes up the majority of the vertebral body
Answers
Answer:
if you want more explanation I can add to it
Explanation:
the spongy or cancellous bone tissue
8. Brainstorm two reasons these fish might exhibit differences in body position. Justify each reason given.
Answers
Fish living in diverse ecosystems may have adopted distinct body forms and positions to help them survive in their unique habitats. Feeding behaviour: diverse kinds of fish have evolved to feed on different sorts of prey.
The stickleback is a model organism for the study of evolution for what two reasons?The three-spine stickleback has long been regarded as one of the most important model systems for researching adaptation. This species excels as a model organism due to a number of characteristics: Large geographic dispersion, high fecundity, short generation time, tiny body size, considerable abundance, and widespread geographic distribution
What distinguishes freshwater stickleback fish from marine sea runs?Only the ocean is where marine stickleback populations live and reproduce. Stickleback fish from the sea are anadromous, which means they spend the majority of their life in the ocean before returning to fresh water to reproduce. Stickleback fish only inhabit freshwater environments.
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A mutation that can be inherited by offspring would result from A) random breakage of chromosomes in the nucleus of liver cells B) a DNA base substitution in gametes during meiosis C) abnormal lung cells produced by toxins in smoke D) sun exposure of skin cells
Answers
Answer:
B) a DNA base substitution in gametes during meiosis
Explanation:
The image shows an energy pyramid for a grassland ecosystem.
Photo Showing the Energy pyramid of Grassland ecosystem. With the apex consumer at the top, followed by the secondary consumer, primary consumer, and producers at the Bottom.
The apex consumer level of this ecosystem contains between 500 and 1000 kilograms of biomass. Which statement best describes the amount of biomass at the level of the primary producers?
A.
less than 50 kilograms, because producers contain less than ten percent of the biomass of apex consumers
B.
between 50 and 500 kilograms, because apex consumers have a moderately greater biomass than producers have
C.
between 500 and 1000 kilograms, because there are similar amounts of biomass at the producer and apex consumer levels of an ecosystem
D.
much larger than 1000 kilograms, because a very high biomass of producers is required to support a smaller biomass of apex consumers
Answers
For apex consumers' biomass to range from 500 to 1000 kilograms, the food chain's producers must have significantly larger biomass than that of 1000 kilograms.
Which of the following best sums up the biomass production at the level of primary producers? Energy is transmitted from one organism to another when they consume other species.Only 10% of the available energy is transferred to species at the next higher trophic level, according to the 10% law of energy transfer.The apex or top consumer in this scenario has 500–1000 kg of biomass.The producers in the food chain must have significantly more biomass than 1000 kilograms in order to support the 500 to 1000 kilograms of biomass at the apex consumers.This is so that energy can be transferred from one trophic level to another without losing the majority of it as heat.To learn more about biomass refer
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Two individuals have the same underlying genotype, but differ in their phenotypes. What best explains this?.
Answers
Phenotypic ratios may be impacted by dominance patterns among alleles for a particular attribute, but interactions among several genes may also have an effect on phenotype.
How are genotype and phenotype different?Genotype is the distinctive DNA pattern of each individual. The two alleles a person acquired for a single gene are more specifically referred to by this phrase. The clinical appearance of a patient's genotype is known as the phenotype.
Two people could have the same genotype but different phenotypes, is it possible?Although not the only influence, an organism's genotype has a significant role in how its phenotype develops (and is by far the largest for morphology). Even two creatures with the same genotype typically have different phenotypes. With monozygous, one encounters this frequently.
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- We can tell these are homologous chromosomes because ________. The genotype of this plant is ________ because ________. The phenotype of this plant is ________ because ________ . These alleles would be separated from each other during ________. Two pea plant height alleles would be brought back together into a cell during ________.
Answers
We can tell these are homologous chromosomes because they have the same size, shape, and carry genes for the same traits at the same loci.
The genotype of this plant is the genetic makeup of the plant, which includes all its alleles for all its traits.
The phenotype of this plant is the physical expression of its genotype, which includes its observable traits. These alleles would be separated from each other during meiosis, which is the process of cell division that produces gametes (sex cells).
Two pea plant height alleles would be brought back together into a cell during fertilization, which is the process of fusion of gametes to form a zygote (fertilized egg). In plants, the height trait is determined by a single gene with two alleles, tall (T) and dwarf (t). Therefore, the genotype of a tall plant would be TT or Tt, and the phenotype would be tall, while the genotype of a dwarf plant would be tt, and the phenotype would be short.
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Peak wavelength Amax for the Sun is in the visible wavelengths, approximately yellowish green, about 502 nm or so, but for ordinary humans, our peak wavelength is down in the longer wavelengths of inf
Answers
The peak wavelength of the Sun's emission is in the visible range, around 502 nm (yellowish green), while the peak wavelength for human vision is in the longer infrared range.
The Sun emits radiation across a wide range of wavelengths, with the peak wavelength, known as Amax, falling in the visible spectrum. For the Sun, this peak wavelength is approximately 502 nm, which corresponds to a yellowish-green color. This means that the Sun's emission is most intense in this part of the spectrum.
On the other hand, the peak wavelength for ordinary human vision is in the longer wavelengths of the infrared range, around 550-600 nm. This means that our eyes are most sensitive to light in this range, which includes colors like red and orange.
The difference in peak wavelengths between the Sun and human vision is due to the differing sensitivities of the Sun's emission spectrum and the photoreceptors in our eyes. While the Sun's emission is strongest in the visible range, our eyes are most sensitive to longer wavelengths. This difference allows us to perceive and interpret the Sun's visible light as the familiar yellowish-green color, despite our peak sensitivity being in the longer wavelengths of the infrared range.
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I need help with 17 please
Answers
Answer:
i cant see the picture can you type in comments what your asking
select two brain regions that are associated with anxiety disorders
Answers
Two brain regions that are associated with anxiety disorders are amygdala and prefrontal cortex.
What is anxiety?
Anxiety is a normal emotion that most people experience at some point in their lives. It is a response to stress, fear, or a threat. Anxiety becomes a disorder when it occurs frequently and interferes with daily life.
What is the brain?
The brain is the organ that controls and coordinates the body's functions, including thinking, feeling, and movement.
What are anxiety disorders?
Anxiety disorders are a group of mental illnesses characterized by excessive, persistent, and uncontrollable fear or worry that interferes with daily activities. They are the most prevalent mental disorders, affecting millions of people worldwide.
The two brain regions that are associated with anxiety disorders are:
1. Amygdala - It is a small, almond-shaped structure in the brain's temporal lobe. The amygdala plays a significant role in the body's fear and anxiety response by evaluating potential threats and releasing hormones and other chemicals that activate the body's fight-or-flight response.
2. Prefrontal Cortex - It is the part of the brain that is responsible for executive functions such as decision-making, attention, and inhibition. It can regulate amygdala activity, and people with anxiety disorders may have an overactive amygdala and a dysfunctional prefrontal cortex.
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Answer:
The regions that appear to be more critical for anxiety are the basolateral amygdala (BLA) within the basolateral complex, the central amygdala (CeA) within the central nucleus, and the medial amygdala (MeA) within the medial nucleus.
QUICK!! What is the job of mitochondria?
ANSWERS:
A to turn food into energy
B to get rid of waste
C control all the cells activities
D to turn food into meals
Answers
Answer:
A
Explanation:
Answer:
i would think A. but sorry if its not it and have a good day.
Large taxonomic groups consisting of related phyla (more than one phylum) are called:
A. Domains
B. Kingdoms
C. Species
D. Orders
Answers
Answer: B
Explanation:
The right response is B. Kingdoms. The biggest taxonomic group is called a kingdom, which is made up of smaller groups called phyla. The level below kingdoms, phyla, are composed of linked classes.
What are orders made up of ?Orders are made up of related families, genera, and species, and classes are formed up of related orders. The hierarchy-based taxonomic categorization system is used to classify living entities into related categories.
The largest group is made up of two or more phyla and is called a kingdom. A class is a collection of connected orders, while a phylum is a collection of related classes.
A set of related families, genera, and species is referred to as an order. All living creatures are divided into five kingdoms according to the five-kingdom system, whichnamely, Animalia, Plantae, Fungi, Protists, and Monera.
In conclusion, B. Kingdoms is the right response to the query. The biggest taxonomic group is called a kingdom, which is made up of smaller groups called phyla. All living creatures are divided into five kingdoms under the five-kingdom system: Animalia, Plantae, Fungi, Protista, and Monera. Additional divisions of these five kingdoms include phyla, classes, orders, families, genera, and species.
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Ignoring a part of the body or world on the side opposite that of a brain injury is called:
Answers
Ignoring a part of the body or world on the side opposite that of a brain injury is called hemispatial neglect. This condition is most commonly associated with injuries to the right side of the brain, which can cause a person to ignore or neglect the left side of their body or world.
Hemispatial neglect can also occur following damage to the left side of the brain, resulting in the neglect of the right side of the body or world. People with hemispatial neglect may not be aware of objects or people on one side of their body or in their environment. They may only eat food from one side of the plate, dress only one side of their body, or ignore people on one side of the room. They may also have difficulty with spatial awareness and navigation, bumping into objects on the neglected side. It is important to note that hemispatial neglect is not a lack of vision or blindness, but rather a deficit in attention and awareness.
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Which of these statements is false?A. Most of the total blood volume is contained in veins.B. Capillaries have a greater total surface area than any other type of vessel.C. Exchanges between blood and tissue fluid occurs across the walls of venules.D. Small arteries and arterioles present great resistance to blood flow.
Answers
Your answer: Statement C is false. Exchanges between blood and tissue fluid occur across the walls of capillaries, not venules. Capillaries have thin walls that allow for the exchange of nutrients, gases, and waste between blood and tissues, while venules primarily function to collect blood from capillaries and transport it back to the veins.
Exchanges between blood and tissue fluid occur across the walls of capillaries, not venules. Capillaries are the smallest blood vessels in the body, and their walls are thin and porous, allowing for the exchange of oxygen, nutrients, and waste products between the blood and surrounding tissues. Venules are slightly larger than capillaries and function to collect blood from the capillaries and transport it back to the larger veins. However, venules do not play a major role in the exchange of substances between blood and tissue fluid.
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Your answer: Statement C is false. Exchanges between blood and tissue fluid occur across the walls of capillaries, not venules. Capillaries have thin walls that allow for the exchange of nutrients, gases, and waste between blood and tissues, while venules primarily function to collect blood from capillaries and transport it back to the veins.
Exchanges between blood and tissue fluid occur across the walls of capillaries, not venules. Capillaries are the smallest blood vessels in the body, and their walls are thin and porous, allowing for the exchange of oxygen, nutrients, and waste products between the blood and surrounding tissues. Venules are slightly larger than capillaries and function to collect blood from the capillaries and transport it back to the larger veins. However, venules do not play a major role in the exchange of substances between blood and tissue fluid.
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Hello My name Is Chloe, Do you think you can help me with My Question
I need Facts on sharks.
I'm doing a report for school.
Thanks:)
Answers
Answers:
Here are some fact about sharks that i found cool
#1
Possibly one of the most evolved sharks today are hammerhead sharks. They have an advanced sensory system and a body shape that has adapted to hunt specific prey
#2
Sharks may be one of the most important species on Earth. They have been maintaining our oceans for over 400 millions years.
#3
Sharks have evolved and changed much over millions of years. However many sharks today still share some of the features as sharks from millions of years ago.
#4
Sharks have been in our oceans for over 400 million years. Some of the earliest sharks were discovered dating back to the Devonian age.
#5
Sharks have survived five massive planet extinction events. These extinction events killed most life on earth and the last one around 65 million yeas ago killed the dinosaurs.
#6
There are over 500 species of shark.
#7
It is believed that each whale shark's pattern is unique, like a human's fingerprint.
#8
Sharks do not have bones. Instead, they have cartilage, that's what makes up human noses and ears
#9
According to the Smit.hsonian, there are over 500 known shark species, though many are endangered or declining due to various factors like overfishing.
#10
Your odds of getting attacked and killed by a shark are 1 in 3,748,067. In a lifetime, you are more likely to die from fireworks or lightning. Whereas over 100 million sharks are killed every year by humans.
#11
Whale sharks are the world’s biggest fish.
#12
Sharks mature slowly and reach reproductive age anywhere from 12 to 15 years.
#13
Hammerhead sharks' eyes are on the sides of their heads, so they have nearly a 360-degree sight line. Their panoramic view of the undersea world is inhibited by two blind spots, one in front of the snout and the other directly behind the head.
#14
Sharks predate the dinosaurs by 200 million years.
#15
Great whites can detect one drop of blood in 25 gal (100 L) of water and can sense even tiny amounts of blood in the water up to 3 mi (5 km) away.
(sorry if this took a lot of time but i had search somethings)
Have a nice day!
Answer:
Sharks do not have bones. ... Most sharks have good eyesight. ... Sharks have special electroreceptor organs. ... Shark skin feels similar to sandpaper. ... Sharks can go into a trance. ... Sharks have been around a very long time. ... Scientists age sharks by counting the rings on their vertebrae. ... Blue sharks are really blue.Sharks, in some form or another, have been around for 450 million years. ... There are over 500 species of shark. ... Sharks do not have bones. ... The whale shark is the largest fish in the ocean. ... Another shark species is the hammerhead shark, known for its distinct appearance.Explanation:
Which process turns glucose into energy?
Breathing
Cell division
Cellular respiration
Photosynthesis
Answers
Answer:
cellular respiration
Explanation:
Neuron A communicates with neuron B. The ________ of neuron A releases a signal that activates a(n) ________ of neuron B.
Answers
Answer:
Axon terminal ; dendrite
Hope this answer correct :)
Neuron A communicates with neuron B, and the axon terminal of neuron A releases a signal that activates the receptors present on neuron B. The neurotransmitters are attached to the ligand-gated channel on neuron B.
What is nerve impulse transmission?The nerve impulse transmission takes place between two neurons, and then in this way, from the sensory organs, the message passes to the spinal cord and the brain. The synapse is formed between the two neurons, such as the presynaptic neuron that releases the neurotransmitters, and this activates the ligand-gated channel of the postsynaptic neuron. Due to this interaction, the neurons get excited and activated.
Hence, neuron A communicates with neuron B, and the axon terminal of neuron A releases a signal that activates the receptors present on neuron B. The neurotransmitters are attached to the ligand-gated channel on neuron B.
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The diagram below shows a cell going through a certain phase of mitosis.
Which of the following best describes what happens during the phase of mitosis shown in the diagram?
Choose 1 answer:
Answers
Answer:
(Option A) Nuclear membranes begin to form around the cell’s genetic material.
Explanation:
In the given image, it can be predicted that the nuclear envelop reappears around the cell's genetic material. The correct option is A.
What is mitosis?Mitosis is the process whereby a cell replicates and then separates its chromosomes, creates two identical nuclei in prep work for cell division.
Mitosis is commonly accompanied by the equal division of the cell's contents into two daughter cells with identical genomes.
Mitosis occurs in the following stages:
The chromosomes shorten and thicken during prophase. Metaphase - Chromosomes align in the center of the cell. Chromatids separate at the centromere and move to opposite poles during anaphase. Telophase - The formation of two nuclei after nuclear envelopes reform around each chromosome group.The image is showing telophase of the cell division mitosis, which is indicating that the nuclear envelop is being formed around the genetic material of the cell.
Thus, the correct option is A.
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