Pacific Coast
San Joaquin Valley
Sierra Nevada Mountains
original
species
According to the image, what geographic feature led to the genetic isolation of the
salamanders? Use evidence from the graphic to support your answer.
Answers
The Pacific Coast of North America, along with the mountains and the Columbia River, has served as a geographic barrier leading to the genetic isolation of the salamanders depicted in the image.
The geographic feature that led to the genetic isolation of the salamanders in the image is the Pacific Coast of North America. This is supported by the fact that the range of the Ensatina salamanders extends along the Pacific Coast, from southern California to northern Oregon, as indicated by the dark blue shaded region on the map. This range is also bordered by mountains to the east, as indicated by the lighter blue shading.
These mountains are a significant geographic feature because they create a physical barrier that separates the populations of salamanders on either side. This separation restricts gene flow between the populations, meaning that they are unable to interbreed and exchange genetic material. Over time, this genetic isolation can result in the accumulation of genetic differences that can lead to the formation of distinct species.
Additionally, the presence of the Columbia River to the north of the salamander range further reinforces the role of the Pacific Coast in the genetic isolation of the salamanders. The river would have created an additional barrier to gene flow, further restricting the movement of individuals between populations.
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Related Questions
Consider which of the following transporters aid in the maintainance of membrane potential, based on the interior being more negative than the outside of a membrane. Check all that apply. O Aquaporins O Maltoporin Sodium-Potassium ATPase
Answers
The transporters that aid in the maintenance of membrane potential, based on the interior being more negative than the outside of a membrane, are the Sodium-Potassium ATPase. Option C is the correct answer.
The sodium-potassium ATPase is an integral membrane protein responsible for the active transport of sodium ions (Na+) out of the cell and potassium ions (K+) into the cell. This process requires ATP (adenosine triphosphate) as an energy source. By pumping out three sodium ions and pumping in two potassium ions per ATP hydrolyzed, the sodium-potassium ATPase helps establish an electrochemical gradient across the cell membrane.
This gradient contributes to the maintenance of the membrane potential, with the interior of the cell being more negative compared to the outside. Aquaporins and maltoporin are not involved in the maintenance of membrane potential.
Option C is the correct answer.
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The way that organisms are
spread out is known as their
A. location
B. dispersion
C. climate
D. community
Answers
Answer:
the answer is B. dispersion
10+6h=34 what does h equal?
Answers
Answer: h = 2.125
Explanation:
Simplifying
10h + 6h = 34
Combine like terms: 10h + 6h = 16h
16h = 34
Solving
16h = 34
Solving for variable 'h'.
Move all terms containing h to the left, all other terms to the right.
Divide each side by '16'.
h = 2.125
Simplifying
h = 2.125Answer:
The answer is h = 4.
Explanation:
1) Subtract 10 from both sides.
\(6h = 34 - 10\)
2) Simplify 34 - 10 to 24.
\(6h = 24\)
3) Divide both sides by 6.
\(h = \frac{24}{6} \)
4) Simplify 24/6 to 4.
\(h = 4\)
therefor, the answer is h = 4.
Match these organisms to the terms that best describe them.
diatoms
nitrogen fixers
jellyfish
zooplankton
whales
nekton
cyanobacteria
phytoplankton
Answers
Answer:
nitrogen fixers------cyanobacteria
jellyfish--------------- nekton
zooplankton ----- phytoplankton
whales----------- nekton
Explanation:
Diatoms are single-celled algae that live in houses made of glass. They are the only organism on the planet with cell walls composed of transparent, opaline silica. Cyanobacteria is also called nitrogen fixers because cyanobacteria fixes atmospheric nitrogen in the soil in the available forms of nitrogen to the plants. Whales and jellyfish are nekton because they move in the water independently. Zooplankton feed on phytoplankton for gaining energy and survival.
Answer:
nitrogen fixers------cyanobacteria
jellyfish--------------- phytoplankton
zooplankton ----- diatoms
whales----------- nekton
Explanation:
im pretty sure that is right
african monkeys, including miss waldron’s red colobus, are:
Answers
African monkeys, including Miss Waldron's red colobus (a specific species), are primarily found in various countries in West and Central Africa, particularly in forested regions.
These monkeys are part of the primate family Cercopithecidae, which includes several genera and species. Miss Waldron's red colobus (Piliocolobus waldronae) is a specific species of monkey that was once found in Ghana and the Ivory Coast but is now critically endangered and possibly extinct.
African monkeys in general exhibit a diverse range of behaviors, diets, and habitats depending on their specific species. They play important ecological roles within their ecosystems and contribute to the overall biodiversity of African forests.
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The complete question is:
African monkeys, including miss Waldron's red colobus, are found in which countries?
Hey I just want to give back to the community for helping me up to expert. U dont have to answer the question but its hear for fun. Why do people shrink when the get older?
Answers
Answer:
Reynolds Institute on Aging, says that we can shrink for several different reasons. “Older adults can get shorter because the cartilage between their joints gets worn out and osteoporosis causes the spinal column to become shorter,” he says. “Adults can also lose lean muscle mass but gain fat
Explanation:
thx for points!!!!!!!!!!!!!!
Answer:
“Older adults can get shorter because the cartilage between their joints gets worn out and osteoporosis causes the spinal column to become shorter,” he says. “Adults can also lose lean muscle mass but gain fat. This is a condition called sarcopenia.”
a group of organisms that can breed and produce fertile offspring is known as a ...
Answers
Hope this helps
phytoplankton are important because they occupy teh bottom of the food web
Answers
true, phytoplankton are important because they occupy the bottom of the food web.
Phytoplankton are microscopic plant-like organisms that form the base of the marine food web. They are important because they perform photosynthesis and convert sunlight, carbon dioxide, and nutrients into organic matter, which is then consumed by a variety of organisms, including zooplankton, small fish, and eventually larger predators. Without phytoplankton, the food web would collapse, and many marine species, including those that humans rely on for food and livelihood, would be negatively impacted. Additionally, phytoplankton are important for regulating the Earth's climate by absorbing large amounts of carbon dioxide from the atmosphere and producing oxygen through photosynthesis.
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Which process turns glucose into energy?
Breathing
Cell division
Cellular respiration
Photosynthesis
Answers
Answer:
cellular respiration
Explanation:
Gregor Mendel’s research formed the basis of the field of genetics. dominance. recessiveness. selective breeding.
Answers
Gregor Mendel's research formed the basis of a. field of genetics
Genetics is a branch of biology that studies the inheritance of the characteristics of living things which are passed on to their offspring with certain patterns and variations.
Gregor Mendel is a geneticist who put forward the theory of inheritance based on his cross research using pea varieties. There are three theories put forward by Mendel, namely the theory of Mendel's Law I, namely the law of segregation and Mendel's Law II or the law of grouping genes independently. The results of Mendel's research and theory were very useful for the development of genetics and formed the basis of the field of genetics.
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6.) the process by which large molecules are expelled from a cell
Answers
Answer:
b
Explanation:
All of the following are limitations of the biological species concept,
except for
it doesn't apply to asexual species.
it can't be applied to fossils.
it has trouble explaining hybrids, like wolf-dogs and grolar bears.
reasonably separating most species we see in day to day life..
Answers
Answer:
It can't be applied to fossils
Explanation:
It's because fossils aren't living organisms.
There are economic concerns surrounding the products that have been genetically engineered for particular traits, including pharmaceuticals, crops, and enzymes that are used in industry and manufacturing processes. Which is LEAST likely to be an economic concern that affects society? O patented products birth defects land use O cost of genetically engineered seeds
Answers
Answer:
Birth defects
Explanation:
Edge
Birth defect is least likely to be an economic concern that affects society.
What is society?Society is defined as a neighborhood, country, or large group of people who share customs, institutions, and activities and interests. The building blocks of society are people's relationships with one another and the structures they create. As a result, society is not a collection of people but rather the intricate web of social rules that develop among them.
Birth problems such as spina bifida, cleft lip or palate, gastroschisis, hypospadias, chromosomal congenital anomalies including Down syndrome, and various heart and blood vessel defects have been linked to living close to hazardous waste sites.
Thus, birth defect is least likely to be an economic concern that affects society.
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Gametes from two plant species combine and produce a haploid zygote, and that zygote develops int haploid, hybrid plant that is sterile. Why is the hybrid plant sterile? Select all that apply. Select one or more: a. Meiosis cannot occur. b. The plant cannot grow. O c. The cells do not contain homologous chromosomes. d. The gametes produced cannot combine with the gametes of other plants. e. Mitosis cannot occur. Body characteristics affect the likelihood of fossilization. Which statement(s) about body characteristics is (are) true? Select all that apply. Select one or more: a. If an organism has a soft body, it is more likely to form a fossil because minerals can penetrate it more easily. b. A hard shell is not crushed easily and does not decompose quickly. c. If an organism has a soft body, it is less likely to be fossilized. Competition is central to the theory of natural selection. Why does competition occur? Select one: O a. Organisms are naturally antagonistic (hostile). O b. Females must choose among possible mates. c. Males must defend their territories. O d. Organisms typically produce too many offspring, and resources are limited.
Answers
Gametes from two plant species combine and produce a haploid zygote, and that zygote develops into a haploid, hybrid plant that is sterile. The hybrid plant is sterile because meiosis cannot occur and the cells do not contain homologous chromosomes. Hence, the correct options are a and c. If an organism has a soft body, it is less likely to be fossilized because the body breaks down before it can be preserved. Competition occurs because organisms typically produce too many offspring, and resources are limited. This means that not all of the offspring will be able to survive and reproduce. As a result, the offspring must compete for resources such as food, water, and mates. Hence, option d is the correct answer.
Gametes from two plant species combine and produce a haploid zygote, and that zygote develops into a haploid, hybrid plant that is sterile. The hybrid plant is sterile because meiosis cannot occur and the cells do not contain homologous chromosomes. Hence, the correct options are a and c.
Mitosis and the plant's ability to grow is not affected by sterility. Sterility, on the other hand, means that the plant cannot produce any reproductive cells (like gametes), making it unable to reproduce. Therefore, option b and option d are incorrect. Additionally, the hybrid plant's sterility is caused by an odd number of chromosomes, which results in the improper separation of chromosomes during meiosis.
Body characteristics affect the likelihood of fossilization. A hard shell is not easily crushed and decomposes slowly, which allows for better fossilization of the organism. As a result, option b is correct and options a and c are incorrect. If an organism has a hard shell, it is more likely to form a fossil.
If an organism has a soft body, it is less likely to be fossilized because the body breaks down before it can be preserved. Competition occurs because organisms typically produce too many offspring, and resources are limited. This means that not all of the offspring will be able to survive and reproduce. As a result, the offspring must compete for resources such as food, water, and mates. Hence, option d is the correct answer.
Females choosing among possible mates or males defending their territories are examples of intraspecific competition, which is a type of competition that occurs within a species. However, the question is asking why competition occurs in general, and the answer is that resources are limited and organisms produce too many offspring. Therefore, options a, b, and c are incorrect.
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this hormone is the major controller of blood calcium on a day-to-day basis.
Answers
The parathyroid glands are primarily regulated by the negative feedback of calcium levels in the blood. Low blood calcium levels drive parathyroid hormone secretion, whereas high blood calcium levels inhibit parathyroid hormone release.
Humans and other tetrapods have tiny endocrine glands in their necks called parathyroid glands. Humans typically have four parathyroid glands, which are positioned in various positions on the back of the thyroid gland. In reaction to low blood calcium, the parathyroid gland creates and secretes parathyroid hormone, which plays an important role in controlling the quantity of calcium in the blood and bones.
The blood supply, venous drainage, and lymphatic drainage to the parathyroid glands are comparable to those of the thyroid glands.
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How are dominance and codominance different?
Answers
In dominance the recessive trait is masked, but in codominance both traits are apparent.
The correct option is A.
How are dominance and codominance different?In dominance, the dominant allele completely masks the expression of the recessive allele, resulting in only one of the traits being expressed. In contrast, in codominance, both alleles are expressed and their traits are visible in the phenotype.
For example, in the case of codominance, if a red flower and a white flower are crossed, the offspring may show both red and white colors, resulting in a flower that has both colors (such as pink), rather than a blend of the two colors.
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Complete question:
How are dominance and codominance different?
A. In dominance the recessive trait is masked, but in codominance both traits are apparent.
B. Dominance produces a blend of the two traits, but in codominance, both traits are apparent.
OC. A recessive trait is completely masked by a dominant trait, but codominance produces a blend of the two traits.
D. A codominant trait masks the recessive phenotype, but a dominant trait shows both the dominant and recessive phenotypes.
After insertion, the nuvaring (vaginal contraceptive ring) is left in the vagina for ________ before removal.
Answers
After insertion, the NuvaRing ( contraceptive ring) is left in the vagina for 3 weeks before removal. Then contraceptive ring is removed for one week during which bleeding occurs and new ring is used for each month.
NuvaRing must be inserted into vagina , its 4 week cycle it removed after 3 weeks it means 21 days and then new ring is used . Regularly check that NuvaRing to ensure that you are protected for unwanted pregnancy.
NuvaRing is an effective hormonal contraception if inserted for four weeks , but the manufacturer recommends removing it for ring free week before used a new ring.
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Why does it help to organize data in a table?
Answers
Answer:
Organized data allows you to examine or analyze the data for patterns.
Explanation:
Answer:
Quality work and knowledge.
Explanation:
Keeping your data organized in a table will help you undertsand what youre looking at and how you can use it. Maximum organization keeps your mind organized as well.
Which statement describes natural selection?
Answers
Explanation: Natural selection is one of the primary mechanisms of evolution
Where does the carbon comes from that makes up the glucose molecules?
Answers
Answer:
from CO2
Explanation:
Answer:
carbon dioxide
Explanation:
The carbon atoms used to build carbohydrate molecules comes from carbon dioxide, the gas that animals exhale with each breath. The Calvin cycle is the term used for the reactions of photosynthesis that use the energy stored by the light-dependent reactions to form glucose and other carbohydrate molecules
As blood flows from the hepatic portal vein to the central vein
in the liver, the concentration of blood proteins will most likely
decrease. TRUE or FALSE
Answers
False. As blood flows from the hepatic portal vein to the central vein in the liver, the concentration of blood proteins is expected to increase, not decrease.
The liver plays a crucial role in protein metabolism and synthesis. It synthesizes many plasma proteins, such as albumin and clotting factors, and also removes and breaks down certain proteins from the bloodstream. Therefore, the liver contributes to maintaining the proper balance and concentration of blood proteins.
In the liver, the hepatic portal vein carries blood from the digestive organs, delivering nutrients, toxins, and other substances absorbed from the gastrointestinal tract. As the blood flows through the liver sinusoids, it undergoes various metabolic processes, including the synthesis, breakdown, and modification of proteins.
While the liver is involved in protein synthesis, it also removes and breaks down certain proteins from the bloodstream. This process helps to regulate the composition of blood proteins and maintain homeostasis. However, it's important to note that not all blood proteins are degraded in the liver. Some proteins, such as albumin and clotting factors, are synthesized and released by the liver into the bloodstream.
Therefore, the concentration of blood proteins in the liver can vary depending on the specific proteins and metabolic processes involved. In general, the liver contributes to the overall regulation and maintenance of blood protein levels, ensuring their proper balance and function in the body.
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The last organ involved in the production of the physiologically active form of vitamin D is the
a. liver.
b. kidney.
c. intestine.
d. skin.
Answers
Answer: B) Kidney
Explanation:
what is the most common blood type there is on humanity? (giving away points)
Answers
Answer:
-O
Explanation:
negative o blood is the most common because about more than 50 percent of the earth has it and about 45.5 percent of people in hospitals all around the earth need transfusion blood and O or -O blood can save any type of blood
( plz mark me as brainliest, that would be most appreiciated )
Answer:
O negative
type O negative blood is the universal blood type needed for emergency transfusions and for immune deficient infants.
The diagram below represents a portion of the Earth's latitude and longitude system. What are the approximate latitude and longitude of point A?
15º S 20º W
15º S 20º E
15º N 20º E
15º N 20º W
Answers
Latitude and longitude are distances in degrees from the Equator and from the Greenwich meridian. Point A is at 15º N 20º W. Option D.
What are latitude and longitude?Latitude and longitude refer to distances in degrees concerning a certain reference point.
Latitude is the distance in degrees, minutes, and seconds of a point from the Equator, which is the principal parallel at 0º. It separates the northern hemisphere from the southern hemisphere. Longitude is the distance in degrees, minutes, and seconds of a point from the Greenwich meridian, which is the principal meridian at 0º. It separates the east from the west.In the exposed example, we can identify the equator (horizontal black line at 0º) and the Greenwich meridian (vertical black line at 0º).
We can also see a point named A located in the northern hemisphere and to the west.
By looking at the degrees, we can say this point is at 15º N 20º W. Option D.
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which is not true about fungi
1 rgey lacks chlorophyll
2 they have myceliumption 2
3 they lacks cell wall
4 they stores food as glycogen
Answers
4 they stores food as glycogen
why is irrigation important in the farming industry
Answers
Answer:
Allows farmers and producers to control the amount of water that is placed on the field which allows the crop to get the needed amount of water for growth and development.
Explanation:
the outstanding characteristic of the kingdom fungi? A. all members are photosynthetic.B. absorption of organic matter.C.C.Absorption of dissolved inorganic matter.D.all members are photosynthesis.
Answers
Answer:
B
Explanation:
Fungi were once classified in the same kingdom as plants. Which characteristic of fungi resulted in them being placed in a separate kingdom?
O Fungi have a nucleus.
O Fungi lack chlorophyll.
O Fungi are mostly immobile.
O Fungi are mostly anaerobic,
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Pause
Answers
Answer: B, Fungi lack chlorophyll
Explanation: If you search it up, fungi lack chlorophyll, and plants have chlorophyll so
The characteristic of fungi that resulted in them being placed in a separate kingdom is Fungi lack chlorophyll.
What do you mean by Kingdom?Kingdom may be defined as a taxonomic classification of the second-highest level, just below the domain.
Fungi possess only a single nucleus and spend their much life. Some fungi are immobile in nature due to the presence of ergosterol which stabilizes the fungi in a definite space.
Unlike the Plantae kingdom, the kingdom of fungi lacks the chloroplast as well as cholorophyll. Hence, they do not perform photosynthesis.
Therefore, the characteristic of fungi that resulted in them being placed in a separate kingdom is Fungi lack chlorophyll.
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Will give brainliests
The human body does not constantly lose water through
a. respiration
b. digestion
c. perspiration
d. urination
Please select the best answer from the choices provided
A
B
C
D
Answers
Hope this helps!
The human body does not constantly lose water through Respiration.
What is respiration?Respiration is the process by which the body obtains oxygen from the air we breathe and uses it to produce energy through cellular respiration. Respiration involves the movement of air in and out of the lungs, where oxygen is exchanged with carbon dioxide. The oxygen is then transported to cells throughout the body where it is used to support cellular respiration. Respiration is a critical function that supports the body's energy needs and helps maintain overall health and well-being.
Digestion, perspiration, and urination are all processes that result in a constant loss of water from the body.
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Explain how mutated bacteria are able to resist fluoroquinolones?