Answer:
Autism spectrum disorder (ASD) is a neurodevelopmental disorder characterized by very early onset of dysfunction in social communication and interaction, repetitive behavior, and limited interest. It is now believed that ASD is a result of complex gene-environment interactions, with strong and clear genetic influences. Hope this helps!
The onset of autism is significantly influenced by genetics, with high concordance rates observed in identical twins. Various gene mutations and environmental factors also contribute to the development of ASD.
The onset of autism spectrum disorder (ASD) is significantly influenced by genetics.
Research has shown high concordance rates for autism in monozygotic (identical) twins, ranging between 60%-90%, compared to much lower rates of 5%-10% in dizygotic (fraternal) twins and siblings. This suggests a strong genetic component. Studies have identified various genes and gene mutations involved in autism, particularly those crucial for the formation of synaptic circuits that facilitate communication between different brain regions. For example, de novo mutations, which are spontaneous and not inherited from either parent, have been frequently linked to cases of autism.what tends to increase genetic variation in a population A bottlenecks B disruptive selection C mutation D selective pressures
Genetic variation can be caused by mutation (which can create entirely new alleles in a population), random mating, random fertilization, and recombination between homologous chromosomes during meiosis (which reshuffles alleles within an organism's offspring).
Mutation tends to increase genetic variation in a population.
What is meant by Mutation?Any change in the DNA sequence of a cell. Mutations may be caused by mistakes during cell division, or they may be caused by exposure to DNA-damaging agents in the environment. Mutations can be harmful, beneficial, or have no effect.Mutation tends to increase genetic variation in a population.
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The diagram below shows the position of the sun, moon, and Earth. The labels A, B, C, and D represent four coastlines on Earth.
Three circles are shown. The smallest circle is in the middle and is labeled Moon The circle labeled Earth is on the left of the moon and the biggest circle is labeled Sun and it is on the right of the moon. The circle labeled Earth has A marked on top, B marked on the right, C marked below, and D marked on the left
As Earth rotates, coastline B moves to where coastline A is. Which statement is correct about coastline B in its new position?
It will experience a high tide because water is drawn away from the area between the low tides.
It will experience a low tide because water is drawn away from the area between the high tides.
It will have a low tide because the greatest gravitational pull of the moon is experienced when the coastline is at right angles to the moon.
It will have a high tide because the greatest gravitational pull of the moon is experienced when the coastline is aligned with the sun and moon.
Answer:
It will experience a low tide because water is drawn away from the area between the high tides.
Explanation:
The oceans on earth bulge outwards towards the sun and moon due to gravitational pull. This building is highest when the moon and sun are in line (same plane). The coastline within this plane will experience high tides while those at the right angle will have the lowest tides.
6. The energy exchanges between space, the atmosphere, and Earth's surface produce
Which best describes the main sources of energy in the United States
Primary energy sources include fossil fuels (petroleum, natural gas, and coal), nuclear energy, and renewable sources of energy.
What term refers to communities that remain unchanged for long observable periods of time?
A) Successive communities
B) Stable communities
C) Climax communities
D) secondary communities
Answer:
The right option is; C) Climax communities
Explanation:
Climax communities are communities of organisms (plants, animals and fungi) that have reached a steady stage and remain stable with each other and their environment for a long period of time. A climax community is the last stage of ecological succession which remains relatively stable until affected by a disturbing event such as fire. Tundra, deciduous, coniferous, and tropical rain forests are examples of climax communities.
Answer:
C) Climax communities
Explanation:
What enzyme is responsible for adding the complementary base pairs during replication?
DNA polymerase
RNA polymerase
DNA ligase
RNA ligase
The answer is DNA polumerase ( its A)
hope this helps
Answer:
DNA polymerase
Explanation:
DNA polymerase is the enzyme of DNA replication. DNA polymerase uses the nucleotide sequence of template DNA strand and extends the primer by addition of complementary bases in 5' to 3' direction. It adds "thymine" base to primer for every "Adenine" base present in template strand. Likewise, "cytosine" base is added to primer for every "guanine" present in the template strand.
What is the name of this plant?
Chinese sweet plum
I hopw this helps mark me brainliest
Which characteristics best describe the human digestive system?
A, B, and C.
A and B mean the same thing, just reworded. C is talking about organs in the digestive system that help you with digesting, but are not considered in the digestive tract.
The human digestive system comprises of organs such as the mouth, esophagus, stomach, small intestine, and large intestine, which work together to digest food, absorb nutrients, and excrete waste. Accessory organs, including the liver and pancreas, aid digestion through enzyme production. The system also hosts normal microbiota that facilitate digestion and contribute to the immune system.
Characteristics of the Human Digestive System
The human digestive system is signified as an intricate series of glands and organs which processes food. In order to use the food we eat, our bodies have to break the food down into smaller molecules that it can absorb; it also has to get rid of waste. Majority of the digestion of food occurs in the small intestine. The main function of the large intestine is to eliminate water from the undigested matter and result in formation of solid waste which can be excreted.
The system begins with the mouth, where food enters and is chewed by the teeth. The salivary glands in the mouth produce saliva that begins to break down the food before it is swallowed. The food then travels through the pharynx and down the esophagus, reaching the stomach, where it is further digested. The liver, gallbladder, and pancreas produce enzymes and substances that assist in digestion, with the liver also processing nutrients absorbed from the small intestine.
Food moves next into the small intestine, where it is digested still further and the nutrients are absorbed into the bloodstream. The waste products of digestion (the parts that the body can't use) move into the large intestine, or colon, where water is absorbed and the remaining material is stored as feces before being expelled through the anus.
The normal microbiota of the digestive system plays a role in health and disease; they help with digestion and the immune system but can also be involved in certain digestive system infections or intoxications. The components of the human digestive system also include protective mechanisms to prevent infection and maintain the balance within the system.
Which best describes adaptive radiation?
A. Geographical isolation caused by an adaptation
B. Adaptations that organisms teach each other
C. A decrease in the rate of speciation
D. Biodiversity resulting from few ancestors
The correct answer is - D. Biodiversity resulting from few ancestors.
The adaptive radiation is an evolutionary process in which diversification is appearing among a species, and it starts to fill in different ecological niches.
The adaptive radiation occurs when a species starts to evolve into multiple different species. The reason for the diversification is available space in the ecologic niches. The members of the initial species, start to exhibit new behaviors, new ways of feeding, change in coloration, all in order to be better suited for a specific ecological niche.
Answer: D
Explanation:
How is matter recycled throughout the stages of the carbon cycle
Carbon enters the atmosphere as carbon dioxide from respiration and combustion. Carbon dioxide is absorbed by producers to make glucose in photosynthesis. ... Decomposes break down the dead organisms and return the carbon in their bodies to the atmosphere as carbon dioxide by respiration.
Matter is recycled in the carbon cycle through biological processes like photosynthesis and cellular respiration, and geological processes that store carbon in reservoirs like oceans and rocks, maintaining ecological balance.
Explanation:Matter is recycled throughout the stages of the carbon cycle, an essential biogeochemical cycle through which carbon is exchanged among the biosphere, atmosphere, oceans, and geosphere. Living organisms play a vital role in this process. During photosynthesis, plants and other producers remove carbon dioxide from the atmosphere and convert it into organic compounds. As organisms consume these plants, carbon is transferred through the food chain. Organisms then release carbon back into the atmosphere as carbon dioxide through the process of cellular respiration. When organisms die, decomposers break them down, which can also return carbon to the environment. Additionally, human activities, such as the burning of fossil fuels, contribute vast amounts of carbon dioxide to the atmosphere.
The carbon cycle also includes much slower geological processes where carbon is stored in various reservoirs including the oceans, soil, rocks, and Earth's interior. These reservoirs can sequester carbon for long periods, thereby regulating the amount of carbon in the atmosphere and maintaining ecological balance. Environmental Biology emphasizes the importance of this cycle, as carbon is a key component of all life on Earth and must be continually recycled.
Which energy source contributes the least to climate change
Renewable sources of energy do not contribute to global warming. Use of these resources rather helps in mitigating the global warming. A few example of these are hydroelectric power, wind generated power, solar energy, geothermal energy, tidal energy, biomass energy etc.
✯Hello✯☆(❁‿❁)☆
↪ There are sources that are called RENEWABLE energy sources.
↪ These have NO EMISSIONS meaning they dont have any products that are Greenhouse Gases
↪ These can include things like solar and hydro power
↪ Hope this helpss :)))
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❤Gianna❤
NEED HELP ASAP!!!!! 20 POINTS!!!!
your answer should be D. Transpiration
Transpiration is the process of water evaporating off of the plants and trees and stuff, so yes, D
What are the three main organs of seed plants
The three principal organs of seed plants are roots, stems, and leaves. fungi. Stems provide: a support system for the plant body.
please help me
(01.01 LC)
Which of the following describes the feeding relationships from one organism to the next in a linear path?
Food chain
Trophic level
Food web
Consumer chart
(01.01 MC)
Food web starting with sun and pointing to grasshopper and squirrel; Grasshopper pointing to squirrel, wolf, and snake; squirrel pointing to wolf, snake, and bird; wolf pointing to decomposition with worms and mushrooms; snake pointing to wolf and decomposition with worms and mushrooms; bird pointing to decomposition with worms and mushrooms; decomposition pointing to the sun stating soil nutrients.
According to this food web, which of the following would be considered secondary consumers?
Plants
Grasshoppers
Wolves
Mushrooms
Question 3(Multiple Choice Worth 3 points)
(01.01 MC)
Which best describes the role of a secondary consumer in a food web?
Carnivore that feeds on producers
Herbivore that feeds on producers
Herbivore that feeds on primary consumers
Carnivore that feeds on primary consumers
Question 4(Multiple Choice Worth 3 points)
(01.01 MC)
The table shows the commonly eaten foods of some organisms.
Commonly Eaten Foods List
Group Commonly Eaten Foods
A owls, raccoons, salmon
B birds, fruits, nuts, blossoms
C branches, barks, twigs, acorn
D vegetables, meat, grains
Which groups contain both primary and secondary consumers?
A and B
B and C
C and D
B and D
Question 5(Multiple Choice Worth 3 points)
(01.01 HC)
Food web starting with sun and pointing to grasshopper and squirrel; Grasshopper pointing to squirrel, wolf, and snake; squirrel pointing to wolf, snake, and bird; wolf pointing to decomposition with worms and mushrooms; snake pointing to wolf and decomposition with worms and mushrooms; bird pointing to decomposition with worms and mushrooms; decomposition pointing to the sun stating soil nutrients.
If we removed the decomposers from this food web, how would it affect the balance of the ecosystem?
There would be an increase in dead matter and a lack of nutrients in the soil.
There would be a decrease in dead matter and a lack of nutrients in the soil.
There would be an increase in dead matter and an increase in nutrients in the soil.
There would be a decrease in dead matter and an increase in nutrients in the soil.
Question 6(Multiple Choice Worth 3 points)
(01.01 LC)
Which of the following organisms are carnivores?
Secondary consumers
Decomposers
Primary consumers
Producers
Question 7(Multiple Choice Worth 3 points)
(01.01 LC)
Which of the following organisms are carnivores?
Consumers
Decomposers
Omnivores
Producers
Question 8(Multiple Choice Worth 3 points)
(01.01 LC)
Which of the following is an example of a consumer?
Tree
Sun
Rabbit
Mushroom
The feeding relationships in a linear path are described as a Food Chain. Wolves are the secondary consumers, who are Carnivores feeding on primary consumers. Removal of decomposers results in increased dead matter and reduced soil nutrients. Secondary Consumers are carnivores, and an example of consumers in general can be a Rabbit.
Explanation:The term that describes the feeding relationships from one organism to the next in a linear path is a Food Chain. In the given food web, a secondary consumer is identified as an organism that eats primary consumers, in this case, the Wolves are associated with this role. Hence, wolves are the secondary consumers. Furthermore, a secondary consumer can be defined as a Carnivore that feeds on primary consumers.
When observing the commonly eaten foods of organisms, groups that contain both primary and secondary consumers are B and D. Group B contains birds that feed on producers (fruits, nuts, blossoms - primary consumers) and also possibly small animals (secondary consumers) while Group D includes omnivores which could be either primary (if they eat plants) or secondary consumers (if they eat meat).
If decomposers were removed from a food web, this would cause an increase in dead matter and a lack of nutrients in the soil due to the crucial role of decomposers in recycling nutrients back into the soil from dead organic matter. Carnivores are typically represented by Secondary Consumers as they usually eat primary consumers (meat). Examples of carnivores in general can be Consumers that primarily eat other animals. Finally, the term consumer is applicable to a Rabbit, as a rabbit consumes plants and hence fits in as a primary consumer within the food web.
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Vertebrates and invertebrates differ in the presence of a backbone. Another characteristic that distinguishes most vertebrates from many invertebrates, is that vertebrates —
Question 9 options:
have a relatively well-developed brain and circulatory system.
have long tube-like bodies that are divided into segments.
take in oxygen from their skins rather than from an inside organ.
have hard outer covering called exoskeletons.
Answer:
The other person is completely incorrect, it is A.
Explanation:
A characteristic that distinguishes most vertebrates from many invertebrates, is that vertebrates have a relatively well-developed brain and circulatory system.
What are vertebrates?The vertebrates are a group of animals (phylum Chordata) that are characterized to have bones.
Some other characteristics that define this group are the tubular brain, sense organs, etc.In the embryo of vertebrates, it is also possible to observe the pharyngeal slits.In conclusion, a characteristic that distinguishes most vertebrates from many invertebrates, is that vertebrates have a relatively well-developed brain and circulatory system.
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What percentage of the offspring will have round seeds?
describe at least one evidence for evolution that scientists use to show common ancestry among organisms
fossil record i think.
DNA similarity :)
good luck
which term refers to the genetic make up of an organism
the term "genotype" refers to the genetic makeup of an organism
Answer: genotype
Explanation: the genetic constitution of an individual organism.
Which of the following prevents blood from flowing backward through the circulatory system?
Smooth muscle in the arteries
Smooth muscle in the veins
Valves in the arteries
Valves in the veins
Answer: Valves in the veins
Explanation: The flow of the blood inside the body takes place through the veins and arteries. The oxygenated blood from the heart is supplied to the different parts of the body.
The blood flows from the capillaries to the venules and from there to the veins. The blood moves in the veins by the rhythmic movement of the smooth muscles in the body.
Most of the blood moves against the gravity so there is a chance that it can backflow so to prevent this there are valves in the veins known as one way valves.
Answer: its D. Valves
Explanation: Just passed the assignment
A species of birds entered a nonnative habitat and is now considered an invasive species. Whats the most likely effect his species will have on native species that share the same reaources?
Answer:
the native species will go extinct
Explanation:
Final answer:
Invasive species, like the birds in the nonnative habitat, can compete with native species for resources, leading to a decline in native populations.
Explanation:
Invasive species, such as the birds in the nonnative habitat, can have various effects on native species that share the same resources. One of the most likely effects is competition for resources. Invasive species often out-compete native species for food, nesting sites, and other essential resources, which can lead to a decline in native species populations. For example, if the invasive birds consume the same food sources as the native birds, it may result in food shortage and decreased reproductive success for the native birds.
What are the four types of friction?
Answer: Static sliding rolling and fluid friction
Explanation:
The absorption of carbon dioxide from plants can be analyzed via satellite as shown in the image below. In the image below, green represents land areas where carbon dioxide is being absorbed, and blue represents sea areas where carbon dioxide is being absorbed. The darker the color, the more carbon that location absorbs each year.
What can you conclude about the location of the dot?
There is little carbon being released.
The carbon is sinking into long-term storage.
The carbon is causing climate change in this zone.
There is a forest where many trees are absorbing carbon.
It os being absorbed by the sea make it a long term because its a long process
Answer:
The carbon is sinking into long-term storage.
Explanation:
The area of the dot represents hydrosphere or water body of the earth such as the ocean. The ocean is a great absorber of carbon dioxide (CO₂) from the atmospheric air. One fourth which humans create by burning fossils fuels such as coal, petroleum, natural gas. In normal condition, ocean water is slightly alkaline but due to absorption of more CO₂, ocean water becomes more acidic in the long term. The alkalinity of the ocean is very important in maintaining a delicate balance needed for marine animals.
BRAINLIEST TO BEST ANSWER! A flounder lies motionless on the sandy bottom of the ocean floor. It blends in so well with its environment that predators cannot see it. How does this help the flounder?
Question 1 options:
It helps the flounder reproduce.
It helps the flounder find food.
It helps the flounder defend itself.
It helps the founder move from one place to another.
The correct answer would be "it helps the flounder defends itself."
A flounder is a fish, just think about the little fish from the movie the little mermaid. If it stays still in the colours that blend in with it, then it would be protecting itself.
Camouflaging is a defense mechanism used to avoid predation. The correct option is C). It helps the flounder defend itself.
What is a defense mechanism against predation?
Mechanism against predation refers to the ways in which species avoid predation. These mechanisms are evolutive adaptations used by different organisms to protect and defend themselves.
Individuals can develop organs as weapons or different behaviors that lead them to avoid being preyed on.
Camouflaging is one of these mechanisms. The individual remains motionless blending with the environment, and predators can not detect their presence. This is a defense mechanism.
The correct option is C) It helps the flounder defend itself.
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Answer this riddle and you will get 50 points read carefully and you might be abled to get this right: imagine that you are in a boat with sharks that are surrounding you what do you do. I will in the comments put the right answer to you if you don’t get it right.
You could stop imagining.
Atoms are the most basic unit of matter. Two or more atoms from the same or different elements can combine to form molecules.
A.
cells → organs → tissues → organ systems → organism
B.
cells → tissues → organs → organ systems → organism
C.
cells → organ systems → organs → tissues → organism
D.
cells → organs → organ systems → tissues → organism
B cells- tissues- organs- organ systems- organism
6. What do you think is the underlying cause of all these symptoms in Barbara?
What is wrong with her?
7. Some patients with thyroid or thyroid hormone problems develop a goiter. List
two possible causes of this goiter.
8. Barbara does not have a goiter at the moment. If her condition continues unchecked will
she develop one?
9. Extrapolate the knowledge you have of the hypothalamic-anterior pituitary-thyroid
negative feedback loop to explain how an anabolic steroid (testosterone) abuse would
lead to testicular atrophy (breakdown).
What is one result of meiosis?
A. A larger organism
B. Identical daughter cells
C. Repair of damaged cells
D. Formation of gametes
Please help 10 points
Will mark brainliest
option b is the answer please mark as brianlist
B - identical daughter cells
Cover crops grow between or under a main crop are called
Leguminous crops are often very good cover crops. Summer annual legumes, usually grown only during the summer, include soybeans, peas, and beans. Winter annual legumes that are normally planted in the fall and counted on to overwinter include Austrian winter field peas, crimson clover, hairy vetch, and subterranean clover. Some, like crimson clover and field peas, can overwinter only in regions with mild frost. Berseem clover will overwinter only in hardiness zones 8 and above. Hairy vetch is able to withstand fairly severe winter weather. Biennials and perennials include red clover, white clover, sweet clover, and alfalfa. Crops usually used as winter annuals can sometimes be grown as summer annuals in cold, short-season regions. Also, summer annuals that are easily damaged by frost, such as cowpeas, can be grown as a winter annual in the deep southern United States.
One of the main reasons for selecting legumes as cover crops is their ability to fix nitrogen from the atmosphere and add it to the soil. Legumes that produce a substantial amount of growth, such as hairy vetch and crimson clover, may supply over 100 pounds of nitrogen per acre to the next crop. Legumes such as field peas, bigflower vetch, and red clover usually supply only 30 to 80 pounds of available nitrogen. Legumes also provide other benefits, including attracting beneficial insects, helping control erosion, and adding organic matter to soils.
Intercropping is the practice of growing different types of crops in close proximity, which provides mutual benefits for all involved plants. The 'three sisters' method of planting squash, corn and beans is an popular example of this practice. The technique relies on principles of ecosystem services and is part of sustainable horticulture farming practices.
Explanation:The crops that grow either between or under a main crop are referred as a practice of intercropping. This is a method followed in many horticultural societies where plants that enhance each other's growth are planted side by side. A classic example is the "three sisters" planting method used in Mesoamerica where squash, corn, and beans were planted closely together in flat-topped mounds. The corn plants provide stalks for the bean plants to climb. The bean plants contribute nitrogen to the soil, which fertilizes the other plants. The squash plants spread across the ground, blocking weeds and protecting the root systems of the corn and beans.
This practice is very sustainable, thanks to the vast knowledge of these societies in farming. It operates on the principles of ecosystem services, using the diverse metabolic activities within the soil ecosystem to provide benefits to human food production, drinking water availability, and breathable air.
Horticulture is a sustainable form of farming that includes organic methods of fertilization and pest control. However, this method does deplete the nutrients in the top layer of soil over time, which is why it becomes necessary to let a plot lie fallow, letting the grasses and brush grow in naturally to promote the accumulation of fresh nutrients in the soil. This method of rotating crops over various plots of land is called extensive or shifting cultivation, as it involves multiple plots over large areas.
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Which of these describes one of the functions of the nervous system? A. providing the cells of the body with energy B. sensing changes in the external environment C. transporting nutrients throughout the body D. removing waste materials from the body
Answer:
Explanation:
B. sensing changes in the external environment
The repeating pattern of a mineral’s particles forms a solid called ?
a Crystal?
Not sure. :D
the repeating pattern of a mineral's particles forms a solid called a crystal.