Answer:
Water, during the light-dependent reactions.
Explanation:
During the light-dependent reactions, a photon (particle of energy) from the Sun strikes the pigment molecules in Photosystem I in the thylakoids of chloroplasts. The pigment molecules pass the energy around until it strikes a pair of electrons located where Chlorophyl A is. One electron is "bounced" to the primary electron acceptor. But now it's gone. What replaces it?
The answer is in water. However, water not only provides replacement electrons; it also provides oxygen. When two oxygen atoms accumulate, they are released as a pair. Thus the answer is water. Hope u found this helpful! :)
Oxygen liberated during photosynthesis comes from the photolysis of water molecules.
Explanation:The oxygen liberated during photosynthesis comes from water molecules (H2O) during a process called photolysis.
Light-dependent Reactions: Photosynthesis consists of two main stages: the light-dependent reactions and the light-independent reactions (Calvin cycle). The liberation of oxygen occurs during the light-dependent reactions, which take place in the thylakoid membranes of chloroplasts.
Photolysis: In the light-dependent reactions, light energy is absorbed by chlorophyll and other pigments. This energy is used to split water molecules (H2O) into oxygen (O2), protons (H+ ions), and electrons (e^-).
Oxygen Release: The oxygen atoms from the water molecules are released as molecular oxygen (O2) into the atmosphere. This is the oxygen that we breathe, and it is a byproduct of photosynthesis.
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These moth wings shown in the image below are all the same species.
The difference between their wings is an example
A.) Autotrophs
B.) Natural Selection
C.) Extinction
D.) Variation (traits)
Answer:
D) Variation
Explanation:
take a look at the moths, they each have something different and unique about them. Please give brainliest, i really need it thanks buckaroo :P
The correct answer is variation(traits).
What traits do moths have?
Compared with butterflies, moths have stouter bodies and duller colouring. Moths also have distinctive feathery or thick antennae.
What types of wings do moths have?
In moths, males frequently have more feathery antennae than females, for detecting the female pheromones at a distance. There are two pairs of membranous wings.
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This is an issue related to an individual or a relationship that can potentially cause concern or conflict.
Answer:
Personal Issue is an issue related to an individual or a relationship that can potentially cause concern or conflict.
what is the source of food for germinating seed?
Answer:
The three primary parts of a seed are the embryo, endosperm, and seed coat. The embryo is the young multicellular organism before it emerges from the seed. The endosperm is a source of stored food, consisting primarily of starches
Explanation:
The Alligator and the Python are competing for top predator. What affect can the introduction of a non-native species have on an ecosystem?
Answer:
If a non native species got introduced then it would hurt the animals already there because there is no animals that are hunting it down. Also it would cause a imbalance in the food chain which can cause so animals to become extinct. If the animal is left unchecked then that animal can become the best in the food chain because nobody can get rid of it.
Explanation:
T/F: The ear is responsible for special senses
Answer: True
Explanation: The answer is true, I believe. Small hairs located in your ear are responsible for balance. When you move, these movements cause the hairs to bend.
Science question about nucleotide base pairs and dna, fill in the spaces
Answer: a) deoxyribose sugar
b) guanine
c) adenine
d) phosphate group
Explanation: A DNA is a double stranded nucleic acid molecule. The building blocks of DNA are the nucleotides. A nucleotide is consists of deoxyribose sugar, a nitrogenous base and a phosphate group. The nitrogenous bases found in DNA are Adenine, Thymine, Cytosine and Guanine. In DNA base pairing, Adenine pairs with Thymine while Guanine pairs with Cytosine. The structure of a DNA double stranded helix is like a ladder in which the bases form the steps or rungs while the phosphate group and deoxyribose sugar form the phosphodeoxyribose backbone. Deoxyribose is a pentose, a sugar with five carbon atoms.
The two complementary base pairs in DNA are adenine (A) with thymine (T), and guanine (G) with cytosine (C), which are connected by hydrogen bonds and critical for passing genetic information during cell division.
Explanation:The two complementary base pairs of DNA are adenine (A) with thymine (T), and guanine (G) with cytosine (C). These base pairs form the ladder-like structure of the DNA molecule. Adenine and thymine are connected by two hydrogen bonds, while guanine and cytosine are connected by three hydrogen bonds. This pattern of base pairing ensures that the genetic information is accurately passed on during cell division (mitosis). The base pairs are stacked within the DNA double helix structure, which was proposed by Watson and Crick, and they are stabilised by hydrogen bonds in a specific arrangement where a purine (A or G) pairs with a pyrimidine (T or C), ensuring the uniform diameter of the helix.
What will happen when the global carrying capacity for humans is reached?
A) animals will go extinct
B) humans will go extinct
C) humans will not continue reproducing
D) human population will shrink
Answer:
I do think that it is B, but i'm not very sure.
Explanation:
Answer:
c i think
Explanation:
Some technologies have a number of negative effects. Witch is a negative outcome of the technology of vertical farming
"Potential unemployment" is a negative outcome of the technology of vertical farming.
Explanation:
Vertical farming is an activity where food is produced on vertically oriented surfaces. Rather than single-level farming of vegetables as well as other crops, such as in a field or greenhouse, this approach generates food in vertically stacked structures that are typically built into other structures such as a skyscraper, shipping container or repurposed store.
Disadvantages are like
Building may be very costly, and economic impact assessments have not yet been undertaken.It would be quite difficult and costly to paint. That would require higher costs of labor. It depends too much on technology and would devastate one day of loss of power.Why do we find probability of deviation in biology ? And when can the null hypothesis be accepted
Answer: probability is used to predict the chance that an event is likely to occur at a particular chosen level of significance.
Null hypothesis is accepted in biology when the p value is less than 1%, statistically, when the value of p<0.01
Explanation:
Determing the significance level is decided by the researcher, often times, scientists commonly use the 0.05, 0.01, or 0.001 probability levels as cut-off values. For instance, in the example experiment, you used the 1% probability. Thus, P ≥ 0.01 can be interpreted to mean that chance likely caused the deviation between the observed and the expected values (i.e. there is a greater than 1% probability that chance explains the data).
If instead we had observed that P ≤ 0.01, this would mean that there is less than a 1% probability that our data can be explained by chance. There is a significant difference between our expected and observed results, so the deviation must be caused by something other than chance.
A group of the same kind of organisms living in an ecosystem is called a
Answer:
Population
Explanation:
A population is a group of living organisms of the same kind living in the same place at the same time. All of the plant and animal populations living in a habitat interact and form a community. The community of living (biotic) things interacts with the nonliving (abiotic) world around it to form the ecosystem.
We can see here that a group of the same kind of organisms living in an ecosystem is called a population.
What is ecosystem ?An ecosystem is a complex community of living organisms (biotic components) interacting with each other and their physical environment (abiotic components) within a specific geographic area. It encompasses all the organisms, their physical surroundings, and the ecological processes that occur within that particular system.
Ecosystems can vary greatly in size and scope, ranging from small microcosms, such as a pond or a forest, to vast biomes, such as a tropical rainforest or a coral reef. They can exist in terrestrial (land-based) or aquatic (water-based) environments.
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How can a change to the population of one species affect an entire ecosystem?
please help!!
Changes to the population of one species can have cascading effects on other populations and the overall functioning of an ecosystem.
Explanation:Changes in one species' population can impact the entire ecosystem. For example, if the population of a predator species decreases, it can lead to an increase in the population of its prey species. This can result in a decline in the prey species' food source and eventually a decrease in their population as well.
Additionally, changes in one species can also disrupt the balance of other species that rely on or interact with it in the ecosystem. For instance, if a species suddenly becomes dominant in an ecosystem, it can outcompete other species for resources such as food, water, and shelter, leading to the decline or even extinction of those species.
This can cause a ripple effect throughout the ecosystem, impacting the abundance and distribution of other organisms, as well as the functioning of various ecological processes.
Overall, the interconnectedness of species within an ecosystem means that changes in one population can have cascading effects on other populations, ultimately shaping the structure and functioning of the entire ecosystem.
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Which of the following plants most likely grew in the dark?
Answer choices:
a
inversion
b
duplication
c
translocation
d
deletion
Answer: Option A) Translocation
Explanation:
Translocation is the transfer of a chromosomal segment to another. Hence, it results in an interchange of genetic parts among chromosomes that are not similar (part of chromosome labelled 4 was translocated to the chromosome labelled 18)
9. Surtsey is an island located south of Iceland that was formed by a volcanic eruption. Surtsey first
appeared in the 1960s. Ecologists documented the stages of succession as found below
A. Dwarf willow trees begin to grow on the island.
B. Mosses, lichens, and plants that are adapted to be dispersed by the wind or sea and able to grow in
the sand appear on the island.
C. Vascular plants included sea lyme grass and oyster plants appear
D. The lava and sand formation that resulted from the eruption are barren with few nutrients
Write the correct order of the letters A-D above to best represent the order of succession:
Correct Order:
D. The lava and sand formation that resulted from the eruption are barren with few nutrients.
C. Vascular plants included sea lyme grass and oyster plants appear.
B. Mosses, lichens, and plants that are adapted to be dispersed by the wind or sea and able to grow in the sand appear on the island.
A. Dwarf willow trees begin to grow on the island.
Explanation:
The very first vascular plant was observed on Surtsey's northern shore in 1965 during the spring while mosses were evident in 1967 and lichens were first identified in 1970 on Surtsey lava. Plant expansion on Surtsey was carefully examined, particularly as vascular plants had much greater value in vegetation growth than mosses, lichens and fungi.But now lichens and mosses are covered in most area of the islands.Twenty species of plants were recorded at some time or another during the very starting twenty years of the island but only ten were formed in the nutritional-poor sandy soil. As birds started breeding on the island, soil conditions were improving, and more varieties of vascular plants could survive.Suggest why carbohydrates such as bread should be wholegrain if possible.
Answer:
Carbohydrates are in everything, they are an essential energy in the Human Body
So your best guess/answer should be that you can switch to wholegrain, and in other words. This is basically things like Wheat bread.
Explanation:
And here's your why. The less carbohydrates you consume, the less you have to worry about excessive weight loss.
Whole grain breads should be preferred whenever possible because they are a good source of complex carbohydrates, provide more fiber and nutrients, and have a lower glycemic index compared to refined carbohydrates.
Explanation:Whole grain breads should be preferred whenever possible because they are a good source of complex carbohydrates. Complex carbohydrates provide more fiber and nutrients compared to refined carbohydrates found in white bread.
For example, a slice of whole grain bread has about 15 grams of carbohydrates, while a slice of white bread has about 12 grams. Whole grains also have a lower glycemic index, which means they are digested more slowly and provide a steady release of energy throughout the day.
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Answer the research question and hypothesize about the results of the addition of this invasive species. A) Biodiversity will remain constant and although the existing top level consumers will be wiped out, they will be replaced by other species. B) The sea lamprey will work through the food web, top to bottom. The old web will collapse and there will be a drastic decrease in biodiversity. C) The consumers with the purple and blue bands will become extinct. The producers and herbivores will dominate the ecosystem. Biodiversity will decline. D) The top level consumers will disappear and biodiversity will decline, but because of the complexity of the food web, it will sustain itself over time.
Biodiversity will remain constant and although the existing top level consumers will be wiped out, they will be replaced by other species.
What is Biodiversity?The variety of animals, plants, fungi, and even microorganisms like bacteria that make up our natural environment are all included in what is known as biodiversity. These various species and critters collaborate in complicated web-like ecosystems to keep things in balance and support life.
We run the risk of disturbing the balance of ecosystems and losing biodiversity as humans put more and more strain on the world by utilizing and consuming more resources than ever before.
According to the WWF's 2022 Living Planet Report, since 1970, the number of mammals, fish, birds, reptiles, and amphibians has decreased globally on average by 69%.
Therefore, Biodiversity will remain constant and although the existing top level consumers will be wiped out, they will be replaced by other species.
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Plate boundaries that move towards each other are called
Answer:
plate boundaries that are moving towards each other is called a convergent boundary.
5. If insects and birds fly from flower to flower to help with pollination, why are there not flowers of
mixed species?
Answer:
Because they are not animals
Explanation:
They are plants still living but plants
During your summer internship at a laboratory, you are given the opportunity to view a chimpanzee zygote under a microscope. You see that it has 48 chromosomes. How many chromosomes would you expect to find in a chimpanzee’s egg cell?
Answer:
If the chimpanzee’s zygote has 48 chromosomes, one would expect to find 24 chromosomes in a chimpanzee’s egg.
Explanation:
In a living organism, somatic cells are diploid and possess the full chromosome load, while gametes -sex cells- possess half of the total chromosomes, they are haploid.
The zygote of any organism that reproduces sexually results from the union of a male gamete and a female gamete, so its chromosome load is complete.
This means that if the chimpanzee has 48 chromosomes in its cells, the female sex cell - the egg - has 24 chromosomes.
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Which of the following is considered a vestigial structure in humans?
-tail bone
-big toes
-spleen
-gall bladder
The tailbone is considered a vestigial structure in humans. The spleen and gallbladder are not considered vestigial as they have important functions.
Explanation:The tailbone is considered a vestigial structure in humans. It is the remnant of a tail that our ancestors had. While it does not serve any known function in humans, it provides attachment for certain muscles and ligaments.
The spleen is not considered vestigial because it plays important roles in the immune system, blood circulation, and storage of red blood cells.
The gallbladder is also not considered vestigial. It is a small organ that stores bile produced by the liver, which aids in the digestion of fats.
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6. How is a community different from a population?
A A community is a group of many different species, while a population
is made up of individuals of one particular species.
B A community is a group of similar organisms in one area; a population
is a group living in many different areas.
CA community is smaller than a population.
D A community involves only one species, while a population involves
more than one species.
Answer:
B
Explanation:
B
Most Accurate Answer There
In my opinion
Why are producers an essential component of an ecosystem
Answer:
Producers are an essential component of an ecosystem because they create food from inorganic matter for the consumers to eat. Plants like lichens and algae are key producers that convert water, sunlight, and carbon dioxide into carbohydrates. If not for producers, the consumers probably would not have as much or any food to eat!
Explanation:
Producers are essential in an ecosystem because they convert sunlight into food through photosynthesis, provide energy for other organisms, and release oxygen as a byproduct.
Explanation:Producers play a vital role in an ecosystem. They are organisms that can convert sunlight into food through the process of photosynthesis. This ability allows them to create their own energy-rich molecules, such as glucose, which serve as the basis of the food web.
Producers form the foundation of the food chain as they are the primary source of energy for other organisms. Herbivores, such as rabbits, rely on producers for sustenance, and carnivores, like wolves, depend on herbivores. Without producers, the energy flow in the ecosystem would be disrupted, resulting in the collapse of the food web.
In addition to providing energy, producers also release oxygen during photosynthesis, which is essential for the survival of many organisms, including humans. Through this process, they help to maintain the balance of carbon dioxide and oxygen levels in the atmosphere.
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why do developing nations favor the construction of high dams
Answer: Small dams can be a sustainable and economic source of electricity, especially in rural areas. ... Because dams lead people to believe that floods are controlled, they lead to increased development of floodplains. When a large flood does come, damages caused are often greater than they would have been without the dam.
Explanation:
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Use the diagram to identify the parts of the nervous system. Label A is pointing to the nervous system. Label B is pointing to the nervous system.
Answer:
Label A is pointing to the peripheral nervous system.
Label B is pointing to the central nervous system.
Explanation:
The nervous system is split into two parts: the central nervous system and the peripheral nervous system.
The central nervous system (CNS) processes and coordinates information in the body. It consists of the brain and spinal cord. The brain is responsible for sensory processing and decision making; it then sends messages down the spinal cord, which transmits these messages to the rest of the body.
The peripheral nervous system (PNS) refers to the rest of the body. It transmits information to and from the CNS. It is responsible for sensory input and movement (though motor control comes from the CNS). The PNS is further divided into two systems: the somatic system, which controls volutary movements and sensory information, and the autonomic system, which regulates involuntary functions.
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What is the reason given for holding off
on the new techniques for extracting the
oil?
Answer:
Many companies are afraid to switch to new forms of oil extraction because they can either cost more or don't see in fixing the "Unbroken"
Explanation:
Most of this comes from a deep seated hatred of change in the human mind but also poses an economic scare of whether or no said companies will still maintain their profit margins.
can plzzz
put the explanations was to why one is correct and why the others are wrong
Hi there!
Question 15:We can see from the graph the spikes during the dry years in beak size, which happen every single time there is a dry year. We can then reasonably infer that this would happen with an extended period of drought, however more significantly as well.
This makes your answer B, the birds with larger beaks would be more numerous.
Looking through the other answer choices - A is incorrect, as just stated above the larger ones would likely become more numerous. C is also incorrect, as we can see from the graph during dry years it does influence ground finches. Finally, D is also incorrect, as we can see the average obviously moving upwards to those with bigger beaks.
Question 16:
We are given that during dry years, the finches eat larger seeds as the smaller seeds are less abundant. This means that those finches with larger beaks would have an advantage for survival, as it is easier for them to eat these larger seeds compared to those with smaller beaks. This then means that more and more finches with larger beaks would survive, making the overall population have larger beaks over time.
This makes your answer C, different adaptations gave some birds a better chance for survival.
Looking through the other answer choices - A is incorrect, as they cannot just decide to acquire larger beaks. B is incorrect, as mutations do not just happen and cause such a big shift, and in an efficient direction (most mutations end up not affecting the animal at all. Finally, D is incorrect, as I don't think beaks have the capability of getting larger as they are exercised more.
Hope this helps! Feel free to let me know if you have any additional questions about this specific problem.
James wants to estimate the absolute age of an animal fossil. However, test results show that the fossil doesn't contain any atoms of carbon-14.
What can James conclude about the lack of carbon-14?
I
OA. The animal, whether living or dead, never had carbon 14 in its system.
B. The animal's carbon-14 decayed long before the animal died.
C.
Finding another fossil nearby without carbon-14 will guarantee that he has matching fossils.
D.
Without carbon-14, it will be an impossible task to estimate the age of the fossil.
E. Without carbon-14, James can use relative dating to estimate the age of the fossil.
Answer:
B. The animal's carbon-14 decayed long before the animal died.
Explanation:
The absence of carbon-14 suggests that the isotopes have decayed over time, indicating that the fossil is likely older than the time frame during which carbon-14 is detectable.
Answer:
Without carbon-14, James can use relative dating to estimate the age of the fossil.
Explanation:
This video is showing us way more details
than we need to remember! So focus on
the fact that Glycolysis happens in the
- mao and starts by breaking_
apart.
Answer:
Glycolysis happens in the cytosol and starts by breaking glucose apart (into 2 pyruvates). :)
What distance was used to define the astronomical unit (AU)?
A) the average distance across the sun, its diameter
B) the average distance from the sun to Mercury, the closest planet
C) the average distance from the sun to Earth, our home planet
D) the average distance from the sun to Neptune, the farthest planet
The average distance from the sun to Earth
Explanation:
Astronomical unit is defined as the the average distance from the center of the earth to the center of the sun.It is represented by AU.The value is equal to a unit of measurement of 149.6 million kilometers. An Astronomical Unit is approximately equal to 93 million miles (150 million km). It's approximately 8 light-minutes.Astronomical units are usually used to measure distances in solar system.How does a change in abiotic factors influence the stability or progression of an ecosystem
Answer:
Abiotic factors of ecosystem are the non-living component such as water, air and nutrients. If abiotic factors are changed, the ecosystem is disturbed because abiotic factors are very important components of ecosystem. Without these, the ecosystem will not perish or grow. If water is removed from an ecosystem, all the organisms will be die because every living organisms needs water for their survival. If nutrients are not available, the food produce by plants is less in quantity and animals which feed on plants die because of huger.