Answer:
analogous structures
Explanation:
i honestly can't explain
John wants to test how temperature affects the mass of sugar that can be
dissolved in water. Which of the following factors will John expect to change
in response to the differences between the control group and the
experimental group?
O
A. The time of day
O
B . The volume of the water
C. The mass of the sugar
O
D. The temperature of the water
If glossopteris fossils were found in Antarctica what was the climate of this continent before
Answer:
Glossopteris is a fossilized woody plant, generally tongue-shaped leaf with visible midribs, networking veins and are found to exist in the Permian-Triassic age.
According to the research, glossopteris fossil flora used to grow in a subtropical climatic condition, indicating that the Antarctica initially was a warm place that supported plants like glossopteris to flourish. But, later it transformed into a much more colder climatic region.
Thus, its an important fossil plant that provides evidences that all the continents were once together.
Antarctica is the colder region and most of the alpine tree grows there, Which are adapted to the climatic condition.
Glossopteris has belonged to the plant kingdom and suitably grows in a warmer region. The characteristics of this plant are:-
Needle-like leaf Sunken stomata.If Glossopteris were found in Antarctica, It shows that the climate of Antarctica was warmer in the past time and changed during the course of evolution.
Therefore, The climate of Antarctica was warmer.
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What is it called when scientists carefully examine a new result by someone else in their field of study
Answer:
Peer review
Explanation:
Peer review is the evaluation of work, idea or research via close examination of others that are expert in that field or that are in same competence.
It has importance in publishing the work, by letting the author to know about its remarks. It is a way to improve quality of work, and quality of that particular journal in which it will be published.
Help Please!!!!!!!!!!!
Describe String Theory. What is the central idea behind it?
In contrast to particle-like points, the one-dimensional "strings" predicted by string theory are the basic building blocks of the cosmos. What we see as particles are essentially vibrations in strings loops, each with an own frequency.
What is concept behind string theory?Theoretical physicists believe that world is composed of tiny vibrating strings, which are smaller than atoms, electrons, or quarks. This concept is known as the string theory.One of the suggested approaches to developing a theory of everything is string theory, which would replace the Standard Model of physics, which can explain everything except gravity, with a model that describes all recognized particles and forces.learn more about string theory here https://brainly.in/question/48907497?msp_srt_exp=6
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Which is the most likely cause of the observed variation?
Answer:
competition among individuals for available food sources
Explanation:
Charles Darwin observed a unique beak size and shape in the finch population of each of the Galapagos Islands that he visited.
-- Which is the most likely cause of the observed variation?
competition among individuals for available food sources
Competition among individuals for available food sources is most likely the cause of the observed variation.
What are the five food sources?As the MyPlate icon shows, the five food groups are Fruits, Vegetables, Grains, Protein Foods, and Dairy.
What is an example of a food source?The most obvious examples of the foods we source from plants are fruits and vegetables. All of the fruits and vegetables grow on plants. Another example of food from planted crops. These are rice, wheat, maize, millets, barley, etc.
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What is the purpose of using reverse transcriptase?
A. To make copies of RNA
B. To make mRNA from DNA
C. To make DNA from mRNA
D. To make copies of DNA
Answer:
C
Explanation:
Enables revertroviruses to convert RNA to DNA and then generate this viral DNA
The purpose of using reverse transcriptase is to make DNA from mRNA. Thus, the correct option is C.
What is Reverse transcriptase?Reverse transcriptase may be defined as an enzyme that catalyzes the construction of RNA from a DNA template that was during the process of transcription.
According to the Central Dogma, the conversion of DNA to mRNA is known as transcription while the conversion of mRNA back into the DNA is known as reverse transcription which is facilitated the enzyme reverse transcriptase and secreted by retroviruses.
Therefore, it is well described above.
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The cell wall _____. is only present in animal cells supports and protects the cell is made of cellulose does not allow the transport of chemicals is thick and rigid
Answer:
supports and protects the cell
is thick and rigid
Explanation:
Cell walls of plants are made of cellulose. However, some cell walls are made of chitin such as those of fungi. They are thicker then the cell membrane and their structure are rigid. They form a mechanically protective enclave for the cell and give structural strength to a cell.
Answer: protects the cell is made of cellulose
thick and rigid
Explanation:
The cell wall is the outer covering of the cell. It is typically found in plants and fungi. It is a thick and rigid structure. It provides cell it's structure and shape. It is a protective layer which allows certain molecules to enter and go out of the cell. In plants the cell wall is made up of cellulose, which is a carbohydrate. The cellulose provides the plant cell wall it's rigidity.
What are the three types of cellular transport used in gas exchange?
Answer:
the three types of cellular transport used in gas exchange are :-
Cellular transport
Diffusion.Osmosis.Active transportThe three types of cellular transport used in gas exchange are simple diffusion, facilitated diffusion, and active transport.
Explanation:The three types of cellular transport used in gas exchange are simple diffusion, facilitated diffusion, and active transport. During gas exchange in the lungs, oxygen and carbon dioxide move between air spaces in the lungs and the blood by passive processes that require no energy from the cell. Simple diffusion involves the movement of these gas molecules down their concentration gradients across cell membranes. In some cases, transport proteins assist in the movement of molecules, which is known as facilitated diffusion. When molecules move against their concentration gradient, the cell must use energy in a process called active transport.
A flower slowly turns to face the Sun. What is the stimulus and response for this action?
A flower turning towards the Sun is displaying heliotropism, where sunlight is the stimulus and the flower's movement is the response to optimize photosynthesis. This positive phototropism is controlled by a biological clock and light sensors.
Explanation:The response of a flower turning to face the Sun is called heliotropism. The stimulus in this interaction is sunlight, and the response is the flower's movement to orient itself towards the light source. This behavior in plants is part of their ability to respond to environmental light cues. In young sunflowers (Helianthus annuus), this movement is quite visible as they track the sun across the sky from east to west during the day and return to the east overnight. This behavior optimizes their ability to absorb sunlight, essential for photosynthesis.
Mature sunflower fields are also interesting because they predominantly face east, which is an adaptation to catch the early morning sun. The control over these movements likely involves a combination of a biological clock and light sensors in the plants. This response is an example of positive phototropism, where a plant grows toward a light source. Understanding these mechanisms is crucial as it demonstrates how plants adapt to their environment to improve their chances of survival and reproduction.
In tree rings, like those shown, each "ring" of growth represents what? A. One season of growth B. Two years of growth C. One month of growth D. One year of growth
Answer:
The correct answer is option D, that is, one year of growth.
Explanation:
Every year, the tree produces new cells, aligned in concentric circles known as annual growth rings or annual rings. These annual rings demonstrate the concentration of wood generated at the time of one growing season. The season of growth starts in the spring. Initially, the cambium generates many big cells with thin walls, which produces the springwood that appears as a light ring.
Then at the termination of the summer, growth slows down. The cells produced at the time of this year are small and comprises thick walls, the formation of summerwood takes place, which appears as a darker ring. Therefore, one year of growth is signified by a ring comprising of dark and light part.
What are the responsibilities of the region of the brain highlighted below? (2 points)
Answer:
d
Explanation:
Because for balance and movement
Answer:
D
Explanation:
The brain stem is responsible for balance,etc.
Why is facilitated diffusion necessary?
Answer:
to cross the plasma membrane.
Explanation:
Two classes of proteins that mediate facilitated diffusion are generally distinguished: carrier proteins and channel proteins.
Do you think there are always clear solutions to environmental problems? Explain your response.
Answer: No
Explanation:
No, because environmental problems arise for different reasons. For example, if Zebras started dying off for different reasons, there would be no clear answer as to what to do.
The answer is no.
Environmental problems are complex and difficult to solve because there is no right or wrong way. This kind of problem is called a wicked problem when you need a theoretical basis. However, simply put, this means that the proposed solution does not solve the problem 100% and may have unexpected side effects. Because of this, we can only find the worst solution to get the most out of our capabilities. Environmental problems also intersect with each other, with social and economic problems.
What do you think is the solution to the environmental problem?Recycling (and Properly Recycling) Incorporating recycling practices into our daily lives reduces landfill waste, saves natural resources, saves habitats, reduces pollution, reduces energy use, and makes the world better. It's one of the most effective ways to make it environmentally friendly. heating.
Why is it so complicated to find a solution to an environmental problem, please explain your answer?Environmental problems can be complex and difficult to resolve. Complexity arises because the components of the environment are interconnected and their interactions can be separated in both time and distance.
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Select the correct answer
Which of the categories of evidence links an object to a crime scene?
A. suspect object from
B. crime object
c.latent fingerprints
D. trace evidence
Answer:
D
Explanation:
Trace evidence (traced back to the crime)
ANSWER:
The correct option is C: Latent fingerprints. Latent fingerprints are evidences that link a suspect to crime scene.
EXPLANATION:
Fingerprints are considered to be unique for every individual and therefore these can be used as the perfect evidence for matching a suspect to the crime scene. Latent fingerprints are the invisible image transfers of the fingerprints that can be obtained easily by applying fingerprinting powder with oil. This oil makes visible the lines and ridges that can be taken for matching the suspect with the crime scene.Which part of the seed is triploid (3n)?
embryo
endosperm
seed coat
SCIENCE--Which of the following leads to eutrophication? Select one or more: a. Agricultural Practices b. Industrial Activities c. Population Growth d. Human Activities
Eutrophication cause by:-
Agricultural Practices Industrial Activities Human ActivitiesWhat is eutrophication?Eutrophication is characterized by excessive plant and algal growth.It to the increased availability of one or more limiting growth factors needed for photosynthesis such as sunlight, carbon dioxide, and nutrient fertilizers.What are the adverse effect of eutrophication?Eutrophication leads to an increased algal growth because the level of nutrients increases. It can lead to a shift in species composition to fast growing algae species including toxic species a shift from long lived macro algae to more nuisance species
Hence, A, B and D are the correct option.
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if a scientist needs to use a large dataset to explore how corn grows in different soils, how would this data be classified?
a. descriptive
b. mixed methods
c. quantitative
d. qualitative
ANSWER:
The correct option is D: Qualitative. Qualitative methods help to classify data collected on the basis of qualities or qualitative properties that cannot be measured using numbers.
EXPLANATION:
The manner in which corn grows in different soils can be measured in a qualitative manner like the length of the corn crop, the quality of the corn as well as the thickness of the corn plants. This data cannot be measured in a numerical manner and so qualitative techniques are used to classify this data.Answer:
the answer is D
Explanation:
What is the most likely risk when a society uses wind as an energy source? A. Risk from radioactive material
B. Risk of harm to flying animals
C. Risk of groundwater contamination
D. Risk of high greenhouse gas emissions
APEX
Answer:
D. Risk of harm to flying animals
Explanation:
The most likely risk when a society uses wind as an energy source is risk of harm to flying animals that is the option B as the wind turbines can pose a danger to birds and bats, particularly those that fly at night.
Wind turbines can have negative impacts on the environment and wildlife. While wind energy is generally considered to be a clean and renewable energy source but have potential risks and challenges. One of the main risks associated with wind turbines is their impact on flying animals, particularly birds and bats. Birds and bats can be at risk of colliding with wind turbines, particularly during migration or when flying at night.
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How can the PCR process help in maintaining the identity of the killer
Answer:
to amplify the DNA (make millions / billions of copies) so that when we run it through a gel electrophoresis, the DNA shows up. The second way it can be used is to help actually find the sequence of the DNA. ANd so if DNA is left at the crime scene the DNA left can be made into multiple copies for further testing.
Explanation:
A/An _______ forms around a well when the water table begins to slope toward the well.
Answer: ground water
Explanation:
Answer:groundwater
Explanation:
Who is responsible for our current climate change? Why?
A. Humans, Increased release of CO2 from burning fossil fuels.
B. It is natural, it has happened at the same rate before.
C. We don’t know, there is no scientific evidence for it.
D. Asteroids, when they burn up in the atmosphere they release chemicals that trap heat.
Answer:
A. Humans, Increased release of CO2 from burning fossil fuels.
Humans, Increased release of CO2 from burning fossil fuels is responsible for our current climate change. The correct option is A.
Thus, The vast majority of scientists agree that human activities—particularly the increased emission of carbon dioxide and other greenhouse gases into the atmosphere—are mostly to blame for the current climate change.
Fossil fuels like coal, oil, and natural gas are burned for transportation, industrial activities, and energy generation, and this contributes significantly to the buildup of greenhouse gases in the atmosphere.
The enhanced greenhouse effect is caused by these greenhouse gases, which serve as a blanket to trap heat from the sun.
Thus, Humans, Increased release of CO2 from burning fossil fuels is responsible for our current climate change. The correct option is A.
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hy are fatty acids important to the cell membrane? (1 point)
Think about how fatty acids and water do not mix. Also think about the structu
ated fatty acids in the cell membrane.
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Organize the word parts according to where they appear in a medical term.
Answer:
Prefix, Root, combining Vowel, Suffix
Explanation:
Answer:
prefix,root,combining vowel, sufix.
Got 100 from edument
Which of these is an advantage of wind energy?
What are the options for the problem
Answer:
It generates electricity.
Explanation:
Which condition results when cells receive three copies of chromosome 21?
Down syndrome
cancer
diabetes
sickle cell disease
ANSWER ASAP
Answer:
Down Syndrome
Explanation:
It is caused by 3 copies of chromosome 21
Answer:
A. Down syndrome
Explanation:
Down syndrome Which is a medical condition caused by cells having an extra chromosome 21
Hope this helps
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What are the roles of carbohydrates in the body?
The roles of carbohydrates is to provide energy through glycolysis and structural support in the body.
Explanation:
Carbohydrates are classified into many types each having a different function in compare to other. These classes are:
Monosaccharides like glucose fructose etc., Disaccharides like sucrose, lactose etc., Polyols like sorbitol, erythritol etc., Oligosaccharides like fructo-oligosaccharides, Starch polysaccharides including amylose, amylopectin and malto-dextrins, and Non- starch polysaccharides like cellulose, pectin and hemicellulose etc.In plants cellulose is the major component of the cell walls and while glycogen stored in the animal muscles supports the proteins of the muscles. Carbohydrates like chitin make the exoskeleton of the insect.
how does a pluripotent cell differ from a totipotent cell?
Answer:
Cell potency is referred to as the ability of cells to give rise to give rise to different or number of cell types. More the potency of cell more well it could differentiate into different types of cells. Cell potency is of three basic types; multi-potent, totipotent, pluripotent.
Totipotent cells can be differentiated into any types of cells including embryonic and non-embryonic cells like placenta.
e.g. zygote
Pluripotent cells can differentiate to any type of cells but not the placenta cells.
e.g. embryonic stem cells
What happens during telophase?
A. The chromatids are pulled apart.
B. The mitotic spindle forms.
C. A new nucleus forms around each copy of DNA.
D. Spindle fibers attach to the chromatids.
Answer:
C because this is the last phase of mitosis
During telophase a new nucleus forms around each copy of DNA. The correct option is C.
What is telophase?Telophase is the fifth and final stage of mitosis, when the duplicated genetic material carried in the nucleus of a parent cell is separated into two identical daughter cells.
Telophase commences when the replicated, paired chromosomes are separated and pulled to opposite sides of the cell, or poles.
In this phase, new nucleus forms around each copy of DNA.
Thus, the correct option is C.
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Why aren’t blueberries blue?
_____ is the movement of materials from a higher to a lower concentration
Answer: Diffusion
Explanation: