Answer:
Dispersal fundamentally influences spatial population dynamics but little is known about dispersal variation in landscapes where spatial heterogeneity is generated predominantly by disturbance and succession. We tested the hypothesis that habitat succession following fire inhibits dispersal, leading to declines over time in genetic diversity in the early successional gecko Nephrurus stellatus.
Explanation:
Answer:
There are five main elements to ecological succession: primary succession, secondary succession, pioneer and niche species, climax communities and sub-climax communities.
Primary Succession. ...
Secondary Succession. ...
Pioneer and Niche Species. ...
Climax Communities. ...
Sub-climax Communities. while Genetic diversity is the total number of genetic characteristics in the genetic makeup of a species. It is distinguished from genetic variability, which describes the tendency of genetic characteristics to vary. Genetic diversity serves as a way for populations to adapt to changing environments.
is the nucleus autotroph or heterotroph???
Answer:
Heterotroph because other parts of the cells provide energy and the nucleus commands it but doesn't supply it.
Explanation:
Consider the following scenario - You’ve read about how air pollution can result in acid rain and now you’re wondering how it may affect the plants in your garden. Hypothesis: Independent Variable: _____
Dependent Variable: _____
Constants: _____
Control Group: _____
Experimental Group: _____
In an experiment about how air pollution can result in acid rain and now you’re wondering how it may affect the plants in your garden the hypothesis is that air pollution affects plant life, Independent Variable is the amount of acid rain, the dependent variable is the rate of plant growth, constants are temperature and humidity, the control group is the growth of another species (e.g. an insect species) and the experimental group are the plant species in the garden.
What is the dependent variable?The dependent variable in an experiment is one that is modified by the independent variable which is the cause of its change, while constant conditions stay the same and the target group is the experimental group.
Therefore, with this data, we can see that the dependent variable and independent variable are mutually related and do not affect the constant conditions.
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two objects with equal masses are in motion. which object will have more kinetic energy? (1 point) responses a. the object with the greater speed b. the object with the greater density c. the object with the greater acceleration d. the object with the greater volume
The object with the greater speed will have more kinetic energy. So the correct answer is option A.
The kinetic energy of an object is the energy it possesses as a result of its motion. The equation for kinetic energy is KE = 0.5mv², where m is the object's mass and v is its velocity or speed. The greater an object's mass and speed, the greater its kinetic energy. The unit of kinetic energy is Joule (J), which is a measure of energy in the International System of Units (SI). It can also be expressed in other units such as calories, foot-pounds, or electronvolts, depending on the context.
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What is the common name for C6H1206
Answer:
Glucose
Explanation:
Answer:
Glucose
Explanation:
Glucose is a simple sugar with six carbon atoms and one aldehyde group. This monosaccharide has a chemical formula C6H12O6. It is also known as dextrose. It is referred to as aldohexose as it contains 6 carbon atoms and an aldehyde group.
Which of the following is a function of nucleic acids?
A) Providing insulation and protection for an organism
B) Reducing the amount of energy needed for a reaction to occur
C)Carrying the genetic information of an organism
D) Bonding together to form large protein macromolecules
Answer:
C) Carrying the genetic information of an organism.
For which type of anemia would the medications the patient is currently taking be most relevant for the diagnosis?
Question 1 options:
megaloblastic anemia
sickle cell anemia
hemolytic anemia
hemochromatosis
Question 2
Which two parts of the heart rely on an electrical impulse to ensure their contraction and resting phases are coordinated together?
Question 2 options:
atria and ventricle
superior vena cava and inferior vena cava
pulmonary vein and artery
bicuspid and tricuspid valve
The patient's current prescriptions are most important for the diagnosis of hemolytic anemia.
Which two components of the heart depend on an electrical impulse to coordinate their contraction and resting phases?The heart's atria and ventricles depend on an electrical impulse to make sure that their phases of contraction and rest are synchronized.
What are the top three reasons for anemia?The protein hemoglobin, which is high in iron, is what gives blood its red color. It transports oxygen from the lungs to the body's other tissues. Blood loss, a lack of new red blood cells being produced, and a high rate of red blood cell apoptosis are the three basic causes of anemia.
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what is a phylum is made up of many different _____
A. orders
B. families
C. classes
Answer:
orders. it sounds like the best answer.
Explanation:
Answer:
C. classes
Explanation:
Somebody help me please
Which of the following is NOT a function of the digestive system?
a. filtration.b. compaction.c. ingestion.d. absorption. e. mechanical processing.
The function of the digestive system is not filtration. The correct answer is A
The digestive system processes food into small molecules so that the body can absorb and use the nutrients. The small molecules that result from digestion are absorbed into the blood and transported to cells throughout the body. Digestion begins in the mouth and ends in the anus.
The functions of the digestive system are as follows: 1. ingestion 2. mechanical processing 3. digestion 4. secretion 5. absorption 6. excretion 7. compaction The digestive system does not have a function of filtration, hence it is the correct answer.The functions of the digestive system are necessary for a healthy body. The correct answer is A
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Another name for the cells in plants and animals is
sentence?
cells
Answer:
Eukaryotic Cells
Explanation:
Eukaryotes are plants and Animal cells.
Another name for the cells in plants and animals is eukaryotic cells.
PLZ HELP
Why are sister chromatids genetically identical?
Answer:
Sister chromatids are identical copies derived from the replication of a parental chromosome. They remain attached to each other at the centromere. They are genetically identical, barring rare mutations and crossing over with homologous chromosomes.
Explanation:
Answer:
Sister chromatids are identical copies derived from the replication of a parental chromosome. They remain attached to each other at the centromere. They are genetically identical, barring rare mutations and crossing over with homologous chromosomes.
Explanation:
Have a nice day!^^
1. In module 1, you identified which species of lizards were most similar to one another based on relative limb length and toe pad size. In this module, you determined which lizards are more similar to one another based on what type of information?
2. Are the species of lizard that are more similar to one another according to body type also more closely related based on the results obtained in this module? Explain your answer.
3. The figures below show two phylogenetic trees similar to the one you constructed in the virtual lab but with more lizards. The trees below show the evolutionary relationships among species from four ecomorphs from the four largest Caribbean islands. What conclusion can you draw about the evolution of the Anolis lizards based on these figures?
4. What is convergent evolution? Use evidence from the trees to explain how the Anolis lizards are an example of this concept.
Evidence from the phylogenetic trees shows that Anolis lizards have evolved into similar ecomorphs on different Caribbean islands, suggesting that they have independently adapted to similar habitats, which is an example of convergent evolution.
1. In this module, the similarity among lizard species is determined based on molecular or genetic information. By analyzing DNA sequences, we can infer their evolutionary relationships and construct phylogenetic trees.
2. The species of lizards that are more similar to one another based on body type may not necessarily be more closely related according to the genetic information. Similar body types can evolve independently in different lineages due to similar environmental pressures, which is an example of convergent evolution.
3. Based on the phylogenetic trees provided, we can conclude that Anolis lizards have evolved multiple times into similar ecomorphs on different Caribbean islands. This indicates that these lizards have independently adapted to similar habitats and ecological niches, resulting in convergent evolution.
4. Convergent evolution is the process by which unrelated species independently evolve similar traits or features due to similar environmental pressures or ecological niches.
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Which of the following lists the divisions of the Geologic Time Scale from the longest to shortest?
Answer:
From longest to shortest, the segments of time are eon, era, period, and epoch.
Explanation:
5.1 Describe the relationship between temperature and the rate of leakage of the pigment from the beetroot cells
Temperature causes an increase in the rate at which the beetroot cells leak pigment.
The beetroot cells' cell membrane becomes more porous as the temperature rises, allowing more colour to escape the cells. This is due to the fact that high temperatures alter the proteins that make up the cell membrane's structure, allowing gaps to emerge between the lipid bilayers and making the membrane more fluid. As a result, the pigments, which are typically locked inside the beetroot cell's vacuole, can diffuse into the surrounding fluid more readily. Thermal denaturation, which can happen quickly at high temperatures and cause an increase in the rate of pigment leakage, is this process. Because of this, there is a direct connection between temperature and the rate of pigment leakage from the cells from beets.
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So, if this is one strand of DNA, what will the other strand look like?
A T G C C G A T A
Answer:
T A C G G C T A T
Explanation:
In deoxyribonucleic acid (DNA) there are 4 nitrogen bases that pair like:
• Adenine (A) with Thymine (T)
• Cytosine (C) with Guanine (G)
We are given the strand:
A T G C C G A T A
For each A, write a T. For a T, write an A.
For every C, write a G. For a C, write a G.
The corresponding strand is:
T A C G G C T A T
_____ is the controversial claim that perception can occur apart from sensory input.
Extrasensory perception is the controversial claim that perception can occur apart from sensory input.
The controversial claim that perception can occur apart from sensory input is known as "extrasensory perception" (ESP). ESP is the idea that individuals can gain information and form perceptions without relying on the traditional five senses (sight, hearing, taste, touch, and smell). This concept has been debated for many years, with some people believing in its existence while others remain skeptical.
In the context of this claim, perception refers to the way we interpret and make sense of the world around us. Under normal circumstances, our perceptions are formed through the sensory input received by our five senses. However, ESP proposes that it is possible for some individuals to form perceptions without this input, essentially bypassing the standard sensory process.
In conclusion, extrasensory perception is the controversial claim that individuals can form perceptions without the need for traditional sensory input. This idea has been a subject of debate and skepticism for many years, with no definitive scientific evidence to either prove or disprove its existence.
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in discussing patterns of biodiversity over long timescales, we focused on the two determining factors: the rate at which new species originate, and the rate at which species go extinct. are rates of origination of new taxa random? is the extinction of lineages a random process? explain.
While both the origination of new taxa and the extinction of lineages involve some degree of randomness, they are also influenced by various ecological, environmental, and evolutionary factors that affect the rates of biodiversity change over time. Understanding these factors is essential for predicting and mitigating the impacts of human activities on global biodiversity.
In discussing patterns of biodiversity over long timescales, the two determining factors are the rate at which new species originate and the rate at which species go extinct. The origination of new taxa is not entirely random, but it is influenced by various factors such as environmental changes, speciation events, and genetic mutations. The rate of origination can be affected by natural selection, which favors the survival and reproduction of certain traits and genetic variations that may lead to the emergence of new species.
On the other hand, the extinction of lineages is not entirely random either. It can be influenced by factors such as changes in climate, geological events, competition with other species, and human activities. Some species may be more vulnerable to extinction than others due to their ecological niche, habitat range, and population size. Therefore, the extinction of lineages is a complex process that involves both random and non-random factors.
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Question 1 (1 point)
Which of the following functions in homeostasis, information processing, and controlling movement?
Epithelial tissue
Connective
Nervous tissue
Neural network
Muscle tissue
Answer:
nervous system
Explanation:
BioInteractive Click & Learn Student The Eukaryotic Cell Cycle and Cancer Overview Worksheet INTRODUCTION This handout complements the Click & Learn The Eukaryotic Cell Cycle and Cancer and is intended as a straightforward introduction to the cell cycle and how it relates to cancer. For a more comprehensive student handout, please see the in-depth version PROCEDURE Follow the instructions as you proceed through the Click & Learn and answer the questions in the spaces below Click on the "Background" tab on the right side. Read the information and watch the videos. 14. Normally, proto-oncogenes stimulate the cell cycle What are oncogenes and how do they affect the cell cycle? a. To cause cancer, proto-oncogenes require allele(s) to be mutated and therefore are considered The mutation results in a of function 15. Normally, tumor suppressor genes inhibit the cell cycle. How do mutated tumor suppressor genes affect the cell cycle? a. To cause cancer, tumor suppressor genes require therefore are considered function allele(s) to be mutated and The mutation results in a of
Oncogenes are genes that transform normal cells into cancer cells when they become mutated. Normally, proto-oncogenes activate the cell cycle.
To produce cancer, proto-oncogenes require mutation(s) in the allele(s), causing a gain of function. Mutated tumor suppressor genes result in loss of function, which contributes to the development of cancer. Tumor suppressor genes are genes that help prevent cancer by slowing down the cell cycle. When these genes become mutated, they can no longer slow down the cell cycle, allowing cells to divide and grow uncontrollably. Oncogenes are genes that transform normal cells into cancer cells when they become mutated. Normally, proto-oncogenes activate the cell cycle. To produce cancer, proto-oncogenes require mutation(s) in the allele(s), causing a gain of function. Mutated tumor suppressor genes result in loss of function, which contributes to the development of cancer. Tumor suppressor genes are genes that help prevent cancer by slowing down the cell cycle. When these genes become mutated, they can no longer slow down the cell cycle, allowing cells to divide and grow uncontrollably.
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12. Define the differences between a crystalline and amorphous substance a. Relationship questions: 1. How does the bonding of atoms differ between an amorphous and crystalline substance. Draw a picture. 2. Explain why amorphous substances will not melt ---- they just get gooey" when heated 3. What is the relationship between a mineraloid and an amorphous substance 4. How does the term amorphous NOT relate to the mineral definition? 12. Define the differences between a crystalline and amorphous substance a. Relationship questions: 1. How does the bonding of atoms differ between an amorphous and crystalline substance. Draw a picture. 2. Explain why amorphous substances will not melt ---- they just get gooey" when heated 3. What is the relationship between a mineraloid and an amorphous substance 4. How does the term amorphous NOT relate to the mineral definition? 5. Identify 3 amorphous and 3 crystalline substances you have used.
1. In crystalline substances, the atoms are arranged in a highly ordered and repetitive pattern, forming a crystal lattice structure whereas amorphous substances lack a long-range order in their atomic arrangement.
2. Amorphous substances will not melt because they have no ordered pattern and will simply slide over each other.
3. Mineraloids are a subset of amorphous substances.
4. Amorphous substances are not classified as minerals because they lack the characteristic crystalline structure.
5. Three examples of amorphous substances are glass, rubber, and plastic.
What are amorphous and crystalline substances?Crystalline substances have a highly ordered and repeating three-dimensional arrangement of their constituent particles.
In a crystalline solid, the particles are arranged in a regular pattern, forming a crystal lattice.
Amorphous substances lack the long-range order and regularity of crystalline substances.
In an amorphous solid, the constituent particles are arranged in a disordered manner, without a repetitive pattern or crystal lattice structure.
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A scientist notices an increase in the glucose production
in the plants he is studying. VWhat are the possible
reasons? Check all that appy
D The plant was exposed to more intense light.
O The plant was exposed to less intense light.
O The plant absorbed more carbon dioxide
O The plant absorbed less carbon dioxide
O The plant absorbed more oxygen.
O The plant absorbed less oygen.
i think its more intense light, absorbed more carbon dioxide, and absorbed more oxygen
Answer:
1 and 3
Explanation:
edge 2022
A model of gene expression within the lac operon is shown here. According to the model, how are genes regulated in the lac operon?
Select ALL that apply.
es )
A)
Functional genes Z, Y, and A are continuously transcribed.
B)
In its natural configuration, the repressor protein cannot bind to the
operator
Functional genes Z, Y, and A are transcribed in the absence of a repressor
protein
D)
Functional genes Z, Y, and A are transcribed in the presence of lactose in
the environment.
E)
The gene that encodes for the repressor proteins is continuously
transcribed under all conditions.
Answer: C,D,E
Explanation:
I just did it on USATestprep
!!!!
MULTIPLE CHOICE QUESTION
Ribosomes
is the site of protein synthesis.
is where the genetic material is housed.
is where plants use sunlight to perform
photosynthesis.
What are immunoglobulins?
Answer:
Immunoglobulin, is a large, Y-shaped protein produced mainly by plasma cells that is used by the immune system to neutralize pathogens such as pathogenic bacteria and viruses.
a renal corpuscle includes the multiple choice glomerulus and glomerular capsule. glomerulus and renal tubule. renal tubule and collecting tubule. glomerular capsule and renal tubule.
A renal corpuscle includes the a. glomerulus and glomerular capsule.
The kidneys are a pair of bean-shaped organs in a purplish-red body and are located in the abdominal cavity. The kidneys function as a means of excretion of nitrogen-containing metabolic waste.
Renal corpuscle or renal corpuscle is a kidney structure consisting of glomerulus and glomerular capsule. The glomerular capsule has a double wall with the glomerulus in the capsule cavity. While the glomerulus is a string of blood capillaries whose walls are linked to the glomerular capsule so that substances dissolved in the blood also seep into the glomerular capsule. The glomerulus functions to absorb protein from the blood that travels through the kidney blood cells.
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Smelts are the primary food source for lake trout and salmon in Moosehead. In the late 1980s, we documented a dramatic increase in the abundance of wild lake trout in Moosehead Lake. Swelling lake trout numbers taxed the forage base and the smelt population took a dive. What was the result of depletion of the smelt population? Choose all that apply.
A) salmon populations declined
B) all three populations increased
C) all three populations would decrease
D) growth rates of both lake trout and salmon suffered
E) salmon population would decrease but the others would remain unchanged
Answer:A and D
Explanation: trust me don’t put c
In the late 1980s, a dramatic increase in the abundance of wild lake trout decimated the salmon population. The salmon population declined the most in the late 1980s. Option A is the correct answer.
What is the prey-predator relationship?
In an ecosystem, there are predators and prey. If the predator population grows, they will consume more prey more quickly, causing the prey population to decline rapidly. When there are more prey in an ecosystem, it would be advantageous for the predator, and after some time, the prey will decrease in number and the predator will increase.
Salmon, mouth bass, and lake trout feed on smelt in the lake. Lake trout populations increased in the late 1980s, and as a result, they began feeding on smelt. The other two predators were also affected. The salmon population declined for some time, but later their number increased too. The mouth bass population got affected a lot, and their number kept on declining. The other two species chose different prey and multiplied.
Hence, for some time, the salmon population declined. Option A is correct.
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What happens to the oxygen
that is formed when water molecules
are split during photolysis
Answer:
Since photolysis is the splitting of molecules by light, the oxygen that is formed mostly supplies the oxygen in our atmosphere.
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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the purpose of this lab is to separate pigments in spinach using [ select ] . some pigments will be attracted to either the polar [ select ] or the nonpolar [ select ] and therefore move at different rates.
Two chromatographic techniques were used in the lab to extract two colours from a mixture and several pigments from spinach pigments.
Which colours will be taken out of spinach extract?Add your spinach extract to the top of the column once the solvent level has reached the sand's surface. The pigments should start to split into a yellow carotene band and a green chlorophyll band as the extract drains onto the alumina.
What does spinach chromatography serve?The goal is to use column chromatography to isolate plant pigments from spinach leaves. Numerous coloured pigments found in plant leaves can be divided into two groups: carotenoids and chlorophylls. The pigments that give plants their green colour are called chlorophylls a and b.
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please help asap i will mark brainliest
Answer:
the last one
it has one side that is positively charged and one side that is negatively charged
Answer:
D
Explanation:
A water molecule, because of its shape, is a polar molecule. That is, it has one side that is positively charged and one side that is negatively charged. The molecule is made up of two hydrogen atoms and one oxygen atom. The bonds between the atoms are called covalent bonds, because the atoms share electrons.