fossil record i think.
DNA similarity :)
good luck
In a forest ecosystem including rabbits,wolves,foxes and plants, what are two possible reasons the rabbit population might decline?
Enter your answer in the space provided.
Hints to Question 2- What do animals need to survive? What can hurt them?
Because there are to many predators and they have no space to hide
without soil most life on land could not exist. true or false. if false what is the correct answer?
i think it might be true because plants need soil and animals eat plants and humans eat animal and so on. so everything would relate back to the soil. so TRUE
Judging and evaluating advertisements requires critical thinking because _______.
a.
advertisements can contain confusing, misleading information
b.
all advertisements contain false information
c.
advertisers always want to convince consumers to buy unnecessary items
d.
truth in advertising laws ensure the accuracy of information in advertisement
A. advertisements can contain confusing, misleading information.
Commonly, you will see small words flash across the bottom of the screen, these words contain the truth of the statement. This means that the big, colorful words are only a partial truth to the reality of the sale. For example it could be a limited sale on a specific portion of a store like in a jeans section, but only certain brands of jeans will be on sale.
Answer:
a
Explanation:
What best describes a protein?
A. A strand of DNA
B. a chain of condone and anticondons
C. A chain of amino acids
D. a bond between amino and nucleic acids
The answer is C I’m pretty sure.
The best description of a protein is it is a chain of amino acids. The correct option is C.
What is protein?Protein is a macromolecule made up of several chains of amino acids. There are two types of proteins, one that the body synthesis, called non-essential, and one that our body doesn't synthesize, called essential amino acids.
Proteins are necessary for the building and growth of muscles and the overall body.
Thus, option C. A chain of amino acids is correct.
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Lipids are made mainly of
Fats, oils, waxes, and sterols are collectively known as lipids.
Fats, oils, waxes, and sterols are collectively known as lipids. The molecules of such a lipid are made up of a glycerol molecule with three fatty acid molecules attached to it. This kind of lipid is also called a triglyceride.
NEED HELP ASAP
In order to survive, cells must be able to synthesize molecules from their DNA templates. Which of the following BEST describes the process of translation?
During translation, amino acids are joined together in chains to form complex carbohydrates
During translation, amino acids are joined together in chains to form proteins
During translation, sugars are joined together in chains to form complex carbohydrates
During translation, sugars are joined together in chains to form proteins
DNA fingerprinting was first developed in England in 1985 by Sir Alec Jeffreys. Since that time, DNA fingerprinting has been used for paternity testing. It has also been used to identify victims of crime and to convict criminals. Which of the following BEST describes the technique of DNA fingerprinting?
DNA fingerprinting compares stem cells from different individuals
DNA fingerprinting compares entire DNA molecules from different individuals
DNA fingerprinting compares segments of DNA molecules from different individuals
DNA fingerprinting compares specific amino acids from different individuals
1a
2c
please give me brainlesrt good luck
which would BEST allow a species to survive environment changes
The answer you are looking for is genetic diversity
To survive environmental changes, a species' best strategies include having high genetic diversity, the capability for sexual reproduction, and phenotypic plasticity. Proactive conservation efforts are essential to prevent extinction, especially in climate-sensitive species.
The best strategy for a species to survive environmental changes involves high genetic diversity, the ability to reproduce sexually in case of asexually reproducing species, and phenotypic plasticity. Genetic diversity enhances a species' ability to adapt to new conditions, and sexual reproduction can introduce new gene combinations that may offer better survival strategies during rapid environmental shifts. Furthermore, phenotypic plasticity, the ability of an organism to change its phenotype in response to environmental changes, plays a crucial role in survival. For example, the crystalline iceplant adjusts its water needs based on environmental availability, which has allowed it to thrive in diverse environments globally.
Conservation strategies must be proactive, allowing species to adapt at their own pace to prevent extinction due to climate sensitivity. This may include ensuring unfragmented habitats to enable species to shift their ranges in response to climate change, as fragmented habitats can prevent migration to suitable areas, leading to potential extinction.
Which is a predator/prey relationship found in a freshwater ecosystem?
A. heron/fish
B. shark/crab
C. tiger/gazelle
Choice A is the correct answer.
Answer:
a: heron/fish
Explanation:
During photosynthesis, how is the light energy that strikes the cell transformed into the chemical energy contained in sugars?
i think it is c not sure tho
Answer:
its C I got it right
Explanation:
3. Observe: Click Add light and look at the Output. What are the products of photosynthesis?
They use it to react carbon dioxide with water to make a sugar called glucose. The glucose is used in respiration, or converted into starch and stored. Oxygen is produced as a by-product. This process is called photosynthesis.
Hope this helps :D
I NEED HELP!!!! ASAP NO ROCKY!!!!!! 20 POINTS!!!!!
answer should be D run off
mark brainliest if correct !!
D. runoff is your answer Hope I helped you out
Photosynthesis and cellular respiration are blank that occur in cells
Chemical Reactions. There is your answer.
Are Platypus mammals ?
yes! They're also the only mammal that lays eggs.
How many trophic levels are there in the following food web
Answer: A.4
Explanation:
The food web provided in the image, there are C.3 trophic levels. Therefore ,C.3 is correct .
Producer: Grass is the producer at the base of the food web, as it can produce its own food through photosynthesis.
Primary Consumer: Worms are the primary consumers, as they consume the producers (grass) directly.
Secondary Consumer: Spiders are the secondary consumers, as they consume the primary consumers (worms).
The robin is not part of the food web as it does not directly feed on the worms.
Trophic levels are the different feeding positions in a food chain or web. They are numbered starting with the producers at the bottom, then the primary consumers, then the secondary consumers, and so on.
The energy in the food web flows from the producers to the primary consumers to the secondary consumers.
At each level, some of the energy is lost as heat, so there is less energy available at each higher trophic level. This is why there are typically no more than four trophic levels in a food web.
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There are 5 major types of asexual reproduction. Name all 5 and give an example of each.
Asexual reproduction involves only one parent and the offspring is identical to the parent. An example of an organism that reproduces asexually is Archaea or bacteria. Sexual reproduction involves two parents and the offspring's genes are equally contributed by each parent. An example of organisms that reproduce sexually are some land mammals. The chromosomes of a parent and offspring in asexual reproduction are identical and there is no difference in the chromosomes.
What is a station model used to create?
A. A digital forecast
B. depiction of a jet stream
C. long-term forecast
D. surface weather map
What is a station model used to create?
The correct answer is D. surface weather map
Station models are illustrations that shows the weather occurring at a given reporting station. These are symbolic illustrations. These models were created to fit a number of weather elements into weather maps.
What process or event was required for plate tectonics to begin on earth ?
Older oceanic crust, which is more dense than continental crust, has long since been recycled in the process of subduction. Credit: U.S. Geological Survey. Plate tectonics shapes the surface of our planet, but it also runs much deeper: Plate movement is the surface expression of convection in Earth's interior.
Answer:
The tectonic plates appeared when the earth began to cool, where the water flooded the earth. The earth that was submerged originated the tectonic plates.
Explanation:
Plate tectonics are large semirigid rock blocks that make up the earth's crust. The Earth is divided into fourteen main tectonic plates, which move slowly and continuously over the mantle, and can approach or move away from each other. The movement of the plates results in the formation of mountains, oceanic pits, volcanic activities, earthquakes and tsunamis.
The formation of tectonic plates was a result of the cooling and flooding of the earth. When the earth began to cool, where water flooded the earth. The submerged earth originated the tectonic plates.
Evan and his friends are so surprised to find deer in their subdivision! His mom is getting mad because every morning they are in the garden eating everything they see. What change in their environment could have taken place? A) The fruits and vegetables in Evan's garden are the main food source for the deer. B) The deer seem to be lost and can not find their way back to their natural habitat. C) The highway near Evan's home was widened and runs right through a forested area now. D) Too much precipitation in the spring caused a lot of growth in the vegetation nearby.
The best answer would be C. The highway near Evan's home was widened and runs right through a forested area now.
The reason this is true, the fact that deer avoid any dangers they can swerve by. If a highway ruins the habitat of the deer, then the deer will do what they must to survive.
Answer: C) The highway near Evan's home was widened and runs right through a forested area now.
Explanation:
Some of the urban areas may lie in the close proximity with the forests reserves which may lead to frequent disturbances caused on both the ends that is the forests animals may interfere in the colony occupied by the human society. Also, the humans may enter the forests for deriving resources.
In the given situation the deer population has entered Evan's garden this may occur due to C) The highway near Evan's home was widened and runs right through a forested area now. This environmental change has occurred due to close proximity of garden with the forested area which has facilitated the entry of the deer population in the garden.
body parts in related organisms that are structurally similar are examples of
Answer:
Homologous structures are structures that are similar in related organisms because they were inherited from a common ancestor.
Explanation:
Which group in an ecosystem performs photosynthesis ?
the answer is D: the producers
The Last One D The Producers
Some animals, like birds, reproduce by fusion of cells.
Before a bird hatches, what protects the bird as it develops?
A. The warmth of the sun?
B. The thin shell of the egg?
C. The hard shell of the egg?
D. The nutrients from its mothers body?
The hard shell of the egg.
C the hard shell of the egg
How can humans and their actions affect ecosystems?
∵·············Hi there··········∵
Human activity affects ecosystems in a wide variety of ways, but it primarily does so through agriculture, habitat destruction, water use and fishing. Whenever humans enter a habitat, they tend to reshape it to fit their own needs, destroying the resources that other animals use, which drives them out.
Hope this helps!!:)
Earth has many different types of natural resources. The resources that can take centuries to millions of years to replenish are referred to as
Answer:
Nonrenewable (Give the other girl/guy/them the brainliest or likes or thanks)
Explanation:
A nonrenewable resource is a natural substance that is not replenished with the speed at which it is consumed. It is a finite resource. Fossil fuels such as oil, natural gas, and coal are examples of nonrenewable resources.
PLEASE HELP!!! I will give brainliest!
Explain how a snail's body plan and anatomy enables invertebrate to perform the essential functions it needs to survive.
To analyze the external anatomy of snails, we will divide their body into the shell and the soft body that holds it. The former is a solid spiral-shaped structure carried on the back, made of a single piece and consisting mostly of calcium carbonate. The central layer of the shell, called ostracism, has two layers of crystals of the same substance, calcium carbonate. The Hipostracum is below, and the most superficial layer is the periostracum, composed of a lot of proteins.
The shell of a land snail can be very different in size and shape depending on the species. Some of them are cone-shaped while others are round. However, all of them have a spiral design, caused by the way land snails produce and growth their shells.
This structure protects the snail from the environment and even from predators. It is made up of calcium carbonate which makes it strong and remains that way as long as the snail consumes food with calcium.
Its surface can show different colors with fringe designs, but they usually are brown or yellow. The shell protects the body and internal organs of the animal and has an opening to one side, usually the right.
The body plan and anatomy of a snail play key roles in its survival. The shell affords protection and moisture retention, a muscular foot allows for movement and burrowing, and specialized systems enable digestion, respiration, circulation, and navigation in its environment.
Explanation:A snail's body plan and anatomy contributes to its survival in several ways, thereby performing essential functions. Most notably, the shell of the snail serves as a protective barrier, preventing predation and aiding in moisture retention, crucial for survival in a variety of habitats. The snail's muscular foot allows for locomotion and burrowing into substrate, for hiding or seeking food. The radula, a unique anatomical structure, enables the snail to scrape food particles off surfaces and into its mouth.
Additionally, snails possess a complex respiratory system adapted to their environment. Terrestrial snails, for instance, have a lung-like structure while aquatic ones have gills. Invertebrates like snails also have a simple circulatory system where the heart pumps blood directly to the body cavities without the need for a complex network of blood vessels like in vertebrates. Finally, the nervous system of snails, though simpler than vertebrates, is sufficient for the detection of light, touch, chemicals, balance, and even some can sense gravity which helps them in their interaction with the environment.
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Which best describes the relationship between temperature and dissolved oxygen in a lake?
A.
As temperature increases, dissolved oxygen increases.
B.
As temperature increases, dissolved oxygen decreases.
C.
As temperature decreases, dissolved oxygen decreases.
D.
A change in temperature has no effect on dissolved oxygen.
Answer:
B
Explanation:
Gases slightly dissolve in water and are held loosely by weak inter-molecular forces. When the water gains temperatures, the kinetic energy of the water molecules including those of the gases increase. The dissolved gas molecules are therefore able to overcome the weak forces of attraction in the water and escape through the surface.
Dissolved oxygen levels in a lake usually decrease as the temperature increases. Warmer waters hold less oxygen than cooler waters. For instance, a decrease in dissolved oxygen could happen when lake water heats up during the summer.
Explanation:In a lake ecosystem, there is a relationship between the temperature and levels of dissolved oxygen. Generally, the amount of dissolved oxygen in water decreases as the temperature increases. So, the correct answer would be 'B. As temperature increases, dissolved oxygen decreases.' Warmer waters hold less dissolved oxygen than cooler waters. This occurs because gas solubility is a function of temperature: The warmer the temperature, the less gas there will be dissolved, including oxygen.
For example, when the lake water gets heated up during the summer, dissolved oxygen levels may decrease.
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What structure is the arrow pointing to??
cleavage furrow during anaphase
The arrow could be indicating several things such as the direction of ion movement or time progression, depending on the context of the question. It is used in various subjects to depict direction or flow.
Explanation:The question seems to revolve around a labelled arrow in a diagram which is not provided here. However based on the inputs provided, it appears that the arrow could be pointing to several things: it may be indicating the direction of potassium ions driven by the concentration gradient or electric potential difference across a membrane, or it could signify the direction of motion of sodium ions driven by the concentration gradient. Alternatively, the arrow can also represent the direction of time from the Big Bang to the present. In physics diagrams, arrows are used to indicate direction and magnitude of forces or fields. In biology diagrams, arrows often indicate the direction of movement of molecules or ions.
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How do most animals produce carbon dioxide
Same way as humans do basically
Most animals produce carbon dioxide as a byproduct of cellular respiration.
Production of carbon dioxide
As a byproduct of cellular respiration, carbon dioxide is produced by most creatures. The process through which cells transform nutrients, such as glucose, into usable energy in the form of adenosine triphosphate (ATP), is known as cellular respiration. As a byproduct of this process, carbon dioxide is created while oxygen is consumed.
Cellular respiration, which takes place as part of an animal's metabolism to provide energy for numerous physiological processes, is the main mechanism via which carbon dioxide is produced in animals.
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describe two properties of an exchange surface that would facilitate rapid diffusion rates
molecules and gaseous
The diffusion rate across an exchange surface is dictated by the extent of the concentration gradient and the surface area and thickness of the plasma membrane. A higher concentration gradient and larger surface area promote rapid diffusion, whilst a thicker plasma membrane slows down diffusion.
Explanation:Two properties of an exchange surface that would facilitate rapid diffusion rates are the extent of the concentration gradient and the surface area and thickness of the plasma membrane.
The extent of the concentration gradient is a key determinant of the diffusion rate. The greater the difference in concentration between two regions, the faster diffusion occurs. On the other hand, when the distribution of the material approaches equilibrium, the diffusion rate tends to decrease.
The surface area and thickness of the plasma membrane also affect the rate of diffusion. A larger surface area enables more materials to diffuse simultaneously across the membrane, thereby increasing the diffusion rate. Conversely, a thicker membrane inhibits the passage of materials, leading to a slower diffusion rate. This principle is applied in cells, where surface area-to-volume ratios are used to predict which cell(s) might eliminate wastes or procure nutrients faster by diffusion.
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An itemized list of tasks belongs on a term calendar.
Please select the best answer from the choices provided
T
F
Answer:
That would have to be False...! 100%
Explanation:
It's False, i took the test on E2020
Why are plants roots important to prevent erosion?
A. Plant roots anchor the soil in place.
B. Plant roots build a barrier, preventing wind or rain from reaching soil.
C. Plant roots absorb the water that would otherwise wash away the soil.
D. Plant roots take up space, leaving very little soil present to erode.
Quite sure it's not B or D and sources online are either saying it's A or C.
Answer:
Underground, plant roots look like a tangled web. roots hold soil in place and prevent water from washing it away.
the answer is A
Plant roots help prevent soil erosion by holding the soil and stabilizing it against the erosion flow. Thus, the correct option is A.
How do plants prevent soil erosion?Plants are very effective in reducing soil erosion by keeping the soil clumped together. This happens even when water is flowing over the soil or through it.
Plant roots also help the soil to regain its structure by allowing the exchange of nutrients and minerals.
The microbiota associated symbiotically with plant roots also help in maintaining the integrity of the soil. They add a strengthening texture to the soil.
Plant roots increase the amount of force needed to uproot the plant, as it is the root mainly involved in stabilizing the plant in the soil.
It has also been found that the fine hairs present on the roots also reduce soil loss by either holding the soil in place or by releasing materials that help reinforce soil.
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