Two separate kinds of fossilization processes—a carbon film and a cast—each reveal particular details about the fossilized organism.
What is Carbon film and Cast?When organic material from a fossil remains as a thin layer of carbon on a rock surface, the fossil is referred to as a carbon film. The carbon film can reveal specific details about the surface characteristics of the organism, including its shape, texture, as well as some of its internal structures. For the study of soft-bodied creatures that do not generally fossilise well, this can be especially helpful.
A cast is an instance of fossil in which the original organic substance of the creature has disintegrated or decomposed, leaving an imprint of the organism in the nearby rock. Casts can provide details about an organism's size, shape, and internal structure, although they might not be as good at preserving surface details or textures as a carbon film.
Therefore, the intricate surface details and texture of the fossilized creature are hence what may be learned from a carbon film that cannot be learned from a cast.
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Bundles of axons that connect the peripheral nervous system to the brain and spinal cord are called _____.
Which type of population distribution can help provide organisms with protection from predators?
The type of population distribution that an organism or organisms that can use in protection from predators is the clumped distribution. The clumped distribution is a way of having to be in cluster or arrangement in cluster in which they are evenly space and distributed.
Final answer:
Clumped distribution provides protection from predators for prey animals through safety in numbers, shared food acquisition strategies, and shared knowledge of vital migration routes or breeding grounds.
Explanation:
The type of population distribution that can help provide organisms with protection from predators is known as clumped distribution. In a clumped distribution, organisms are clustered together in groups, which can be beneficial for prey animals in several ways:
Being a member of a larger group provides protection for each individual from predators due to the 'safety in numbers' effect, making it more difficult for a predator to single out an individual.
Prey animals rely on each other to acquire food, with group hunting strategies or shared food sources.
Clumped population distributions can ensure that there is always a member of the group who knows the migration route or breeding grounds, critical for the survival of species with such life patterns.
Patterns of population distribution also reflect important aspects of the biology of the species and affect the mathematical methods required to estimate population sizes, making them a key subject of study in Environmental Biology.
Salivary __________ breaks the chemical bond between two glucose molecules; it breaks down the long polysaccharide starch molecule into smaller and smaller pieces until only glucose results.
Identify the step in the phases leading to muscle fiber contraction indicated by "c."
What is the main function of the nucleolus?
a. it produces cell adhesion proteins that are then exported to the cell membrane.
b. it is the site of photosynthesis in photosynthetic cells.
c. its function is not yet known.
d. it produces enzymes that are then exported to the lysosomes.
e. it is the site of ribosome-subunit synthesis?
Hat is atp? why is it an important product of cellular respiration?
Kelp ________. select one:
a. is eaten by sea otters
b. is an invasive exotic species
c. suffers intense herbivory from zebra mussels
d. suffers intense herbivory from sea urchins
e. is pollinated by sea urchins
Kelp is eaten by sea otters.
The food that sea otters eat has a direct impact in the ecosystem they live. They play a major role in the habitat and in the marine life that lives within the kelp forest.
Further ExplanationHowever, sea otters mostly graze on the kelp and eat their holdfast in the kelp forest. When sea otter eat kelp holdfast, it results in deforesting kelp from an area in the kelp forest.
Sea otters are marine animals. They eat different kind of prey including marine invertebrate such as crustaceans (crabs), cephalopods (squid), bivalves (clams), gastropods (snails), and chitons. They get their food by diving.
By making use of their webbed feet, sea otters have the ability to dive more than 20 feet. The sea otters have the ability to stay under the water for up till 5 minutes or thereabout. Sea otters have whiskers, which they use to sense pray.
They also make use of their agile front paws to find prey. Sea otters are type of marine animals that use tools to obtain and eat their prey. Sea otters can use rocks to remove urchins and mollusks on the rock they are attached to. They eat their food by placing it on their stomach.
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sea ottersecosystemmarine animalpreyfoodSensations of body position, touch, skin temperature, and pain are referred to as ____.â
The answer is general senses. These are the senses which are professed by reason of the receptors distributed all over the body such as temperature, touch, and starvation, instead of knotted to a particular structure, like the special senses - sight or hearing.
Biomes may be terrestrial aquatic or atmospheric true or false
Final answer:
The claim that biomes can be atmospheric is false. Biomes are exclusively terrestrial (land-based) or aquatic (water-based), influenced by climate and environmental factors respectively.
Explanation:
The statement that biomes may be terrestrial, aquatic, or atmospheric is false. Biomes are primarily divided into two categories: terrestrial and aquatic. Terrestrial biomes, such as tropical wet forests, savannas, and deserts, are characterized by distinct climates that support specific animal and plant life. On the other hand, aquatic biomes include both freshwater and marine environments, where factors such as salinity, availability of sunlight, and concentration of dissolved oxygen and nutrients influence the distribution of life.
why is a pyramid of numbers not always a good example of the flow of energy through a food chain?
I really don't get this. Can anyone explain?
Final answer:
A pyramid of numbers does not always represent the flow of energy accurately due to it displaying the quantity of organisms rather than the energy they contain. Energy pyramids are always upright because they adhere to the laws of thermodynamics, showcasing energy loss at each trophic level.
Explanation:
A pyramid of numbers is not always a good example of the flow of energy through a food chain because it reflects the number of individual organisms at each trophic level, not the energy contained within them. In a pyramid of numbers, a large organism, such as an oak tree, may be represented by a small number, giving the impression of little energy at the base of the food chain. However, it can sustain many smaller organisms like parasites and supports higher trophic levels.
Pyramids of energy are always upright, showing the decreasing energy available at each higher trophic level due to the loss of energy when it is transferred from one organism to another. This is due to the laws of thermodynamics, which state that energy cannot be created or destroyed but can change form. Since energy is lost as heat during transfer, less energy is available to organisms at higher trophic levels.
For example, an ecologist modeling the relationship between bird parasites, blue jays, and oak trees in a hectare could find that there may be many parasites supported by a few blue jays, which in turn depend on numerous oak trees. While this may create an inverted pyramid of numbers, it would not accurately reflect the flow of energy, as the oak trees have large energy reserves.
What form of natural selection is acting on beak length in soapberry bug populations feeding on the different fruits?soapberry bugs use needlelike “beaks” to feed on seeds within the fruits of various plants?
Which of the following instruments is used to measure air pressure? A. Anemometer B. Hygrometer C. Barometer D. Thermometer
The answer is C. Barometer
In a hydrogen ion pump, the energy is used to join small molecules together to make larger ones. Which factor most likely has the greatest effect on the number of molecules mitochondria can produce?
A. The size of the membrane proteins
B. The size of the cell nucleus
C. The amount of energy the flowing H+ ions have
D. The shape of the protein channel
Answer:
speed oh h+
Explanation:
life
Final answer:
The most significant factor affecting mitochondrial molecule production is the energy of flowing hydrogen ions, which drives ATP synthesis through the ATP synthase complex.
Explanation:
In the mitochondria, the movement of hydrogen ions across the mitochondrial membrane is crucial for ATP synthesis. The process known as chemiosmosis depends on an electrochemical gradient established by pumping hydrogen ions across the inner membrane into the intermembrane space. The return flow of these ions through the protein complex ATP synthase, which also functions as a channel, provides the energy required for the synthesis of ATP from ADP and inorganic phosphate. Therefore, the factor that most likely has the greatest effect on the number of molecules mitochondria can produce is C. The amount of energy the flowing H+ ions have. This energy, inherent in the electrochemical gradient, is what drives the production of ATP.
The factor that has the greatest effect on soil formation is _____.
A. time
B. climate
C. parent material
D. slope orientation
An organism acquires a mutation in the gene for pyruvate dehydrogenase that renders the protein unable to bind nadh. what is the most likely consequence of this mutation?
Which statement is a hypothesis? Jada decides to investigate the effectiveness of hand sanitizers compared to soap. She says that hand sanitizers are as effective as soap in destroying bacteria. Many sanitizers have alcohol as their main component. She performs a study in which people use sanitizers for one week and then soap for another week. She then examines the bacterial count.
Answer: Option (b) is the correct answer.
Explanation:
When on the basis of certain facts about the object or subject we provide an explanation which is not proved is known as hypothesis.
For example, Jada says that hand sanitizers are as effective as soap in destroying bacteria.
Since, it is not proved by her and this statement shows just an explanation which is not experimentally found.
Thus, we can conclude that the statement hand sanitizers are as effective as soap in destroying bacteria, is a hypothesis.
Breathing deeply is up to ________ more times efficient as breathing shallow.
The man whose brain injury sparked new interest in brain research was:
How geographic isolation and reproductive isolation results in speciation?
Answer:
speciation
Explanation:
We would expect cells found in the digestive glands of animals to contain relatively large amounts of which cellular organelle? A) centrioles B) lysosome C) mitochondria D) nuclei
One of the areas with the most significant differences between males and females is
In fruit flies, brown body color (
b.is dominant to black body color ( b). a brown fruit fly is crossed with a black fruit fly. both flies are purebred. what will the offspring's genotypes be?
The offspring's genotype will be Bb, as both the parents are purebred.
What is the law of dominance?When parents of purebred crossed together, in the next generation the hybrid offspring exhibited only the dominant trait. The purebred dominant trait will mask the recessive trait.
When purebred dominant flies crossed with the purebred recessive flies. Dominant fly will mask the recessive trait in all the offspring in the next generation. In the Law of dominance dominant traits always mask the recessive traits.
The cross between the parents: Bb and bb is attached to the image below.
Therefore, so the genotype is heterozygous Bb and shows a dominant phenotype.
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The sympathetic division is best defined as
According to the video clip, what is the main function of photosynthesis?
What is the primary role of the respiratory system in living organisms?
a. to make carbon dioxide
b. to obtain oxygen
c. to use up nitrogen
d. to find hydroge?
The brain operates on two levels, conscious and unconscious. this is called:
Answer : The correct answer is -
A two track mind.
The brain operates on two levels, which are the level of consciousness (awareness) and unconsciousness (that is not related to awareness).
In other words, our perception, thinking, memory all operates at two levels (also called dual processing) that are conscious (which is a highly controlled, explicit level) and unconscious (implicit, non controlled, automatic level).
This is termed as two track mind.
Final answer:
Consciousness refers to our current state of awareness, while the unconscious contains those thoughts and feelings outside of our conscious perception. Freud's model divides the mind into conscious, preconscious, and unconscious levels, each influencing our behavior and decisions.
Explanation:
Understanding Consciousness and Unconsciousness
The human brain operates at two levels of awareness, known as conscious and unconscious. These levels reflect the different ways in which we engage with our thoughts, memories, and surroundings. Sigmund Freud significantly contributed to our understanding of these concepts by introducing the three levels of consciousness: conscious, preconscious, and unconscious.
The conccious level includes all that we are aware of in our current thoughts and perceptions. The preconscious, in comparison, contains the thoughts and memories that are not actively in our awareness but can easily be brought to the conscious level, such as a memory that springs to mind when prompted. Lastly, the unconscious holds those thoughts, impulses, memories, and desires that are outside of our conscious awareness, yet still impact our behaviors and decisions, often in subtle ways. These elements may remain hidden due to repression, especially when they are thought to be socially unacceptable or distressing.
These concepts of consciousness and unconsciousness are more than just being 'on' or 'off;' they include the dynamic ways in which our mind operates and influences our behavior, whether we are actively aware of it or not. Awareness can shift between high and low states, with the unconscious aspects of our experience capable of becoming conscious through various cues and psychological processes.
What’s the correct answer?
The nurse asks the patient to close the eyes and then traces the number 5 on the patient's palm. the patient is unable to identify the number even after repeated attempts. this finding could indicate damage to what part of the patient's brain?
In which geochemical cycle does the most abundant nutrient in earth's atmosphere appear in its gaseous form?
Nitrogen cycle does the most abundant nutrient in earth's atmosphere appear in its gaseous form. In order organisms make protein, it requires nitrogen. Certain types of bacteria can directly use nitrogen. Nitrogen fixation is the process of turning ammonia into nitrogen.
The suture that forms the articulation of the parietal bones with the frontal bone is the
The coronal suture is the fibrous joint that connects the parietal bones to the frontal bone across the top of the skull. It runs side to side within the coronal plane and is integral for skull structure and protection.
Explanation:The suture that forms the articulation of the parietal bones with the frontal bone is known as the coronal suture. This joint unites the frontal bone to the right and left parietal bones across the top of the skull. The coronal suture runs from side to side within the coronal plane of section, which is perpendicular to the sagittal plane. The sagittal suture extends along the midline at the top of the skull in the sagittal plane, joining the right and left parietal bones, while the lambdoid suture joins the occipital bone to the parietal bones on the posterior skull, resembling an upside-down "V" or the Greek letter lambda. Another important suture is the squamous suture, which unites the parietal bone with the squamous portion of the temporal bone on the lateral side of the skull.