Answer:
true
Explanation:
convection currents occur when a heated fluid expands, becoming less dense, and rises. The fluid then cools and contracts, becoming more dense, and sinks
heat go up, cold go down. they cycle.
Answer:
False
Explanation:
Multiple Choice: Choose the best answer.
In the study of the medium ground finch, Geospiza fortis, the significant regression of mean offspring beak depth on mid-parent beak depth supports which of Darwin's four postulates?
A) individuals within species are variable
B) some of these variations are passed on to offspring
C) in every generation more offspring are produced than can survive
D) the survival and reproduction of individuals are not random
E) "A" and "B"
The significant regression observed in the study of the medium ground finch, Geospiza fortis, supports Darwin's postulates that individuals within species are variable (A) and some of these variations are passed on to offspring (B). Here option E is the correct answer.
The significant regression of mean offspring beak depth on mid-parent beak depth in the study of the medium ground finch, Geospiza fortis, supports Darwin's postulates that individuals within species are variable (A) and some of these variations are passed on to offspring (B).
Darwin's first postulate states that individuals within a species exhibit variation. In the case of the medium ground finch, the study found that there is variation in beak depth among individuals of the species. This supports the idea that the finches are not identical but exhibit differences in their traits, including beak depth.
Darwin's second postulate states that some of these variations are heritable and can be passed on to offspring. The significant regression observed between mean offspring beak depth and mid-parent beak depth in the study suggests that beak depth is indeed a heritable trait. Offspring tend to have beak depths that are influenced by the beak depths of their parents, indicating that this variation is passed on from one generation to the next.
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Can someone please help me if this is correct
Answer:
looks great!
Explanation:
Answer:
it looks great sorry
Explanation:
have a great day
Into what kingdom would each of the following be classified: Unicellular prokaryotes that live in dust. ______________________ Unicellular eukaryotes that line in pond water. _____________________ Multicellular eukaryotes that live all over the planet and consume food. ______________________ Unicellular prokaryotes that live in volcanic ash. _________________________ Multicellular eukaryotes that have cell walls and are heterotrophic. _______________________ Multicellular eukaryotes that have cell walls and are autotrophic. ________________________
Answer:
Unicellular prokaryotes that live in dust: Eubacteria
Unicellular eukaryotes that line in pond water: Protista
Multicellular eukaryotes that live all over the planet and consume food: Anamalia
Unicellular prokaryotes that live in volcanic ash: Archaebacteria
Multicellular eukaryotes that have cell walls and are heterotrophic: Fungi
Multicellular eukaryotes that have cell walls and are autotrophic: Plantae
Explanation:
Prokaryotic organisms can be classified into two groups: Eubacteria and Archaebacteria. Eubacteria (i.e.,“true” bacteria) are unicellular prokaryotic microorganisms that live in normal environmental conditions. On the other hand, Archaea (Archaebacteria) are prokaryotic older organisms that thrive in extreme conditions (in this case, volcanic ash). Moreover, eukaryotic organisms can be classified into four kingdoms: Protista, Plantae, Fungi and Animalia. Protista are unicellular eukaryotes that live in different aquatic environments (i.e., oceans, ponds, streams, etc). Animals are multicellular, mobile, heterotrophic (i.e., organisms that cannot produce its own food) organisms whose cells lack walls. Fungi are heterotrophic organisms that acquire their food by absorbing dissolved organic compounds, whose cells have cell walls (but they lack chloroplasts). Finally, plants are multicellular autotrophic (i.e., organisms that produce their own food) organisms whose cells contain walls and chloroplasts (to produce food by photosynthesis).
Describe Why are trochophores of interest to biologists?
Answer:
Because it is also one of the larval stages in some other groups of invertebrates, and are used by biologists to deduce evolutionary relationships among different groups of invertebrates
Explanation:
hope it will help you.
Aluminum is used to make cookware and cans. It is also
used to make vehicles, medicine, machinery, and even
deodorant
According to the graph, which industry uses the most aluminum?
O A. Transportation
O B. Building
c. Packaging
D. Machinery
Answer: A.
Explanation: Transportation is the biggest fraction of the graph, as shown in the photo. Hope it helps! (ap3x approved) :))
describe the cell structure of a typical plant cell. give the functions of each part of the cell structure
Answer: Plant cells have a cell wall, a large central vacuole, and plastids such as chloroplasts. The cell wall is a rigid layer that is found outside the cell membrane and surrounds the cell, providing structural support and protection. Plant cells have a cell wall, a large central vacuole, and plastids such as chloroplasts. The cell wall is a rigid layer that is found outside the cell membrane and surrounds the cell, providing structural support and protection. The central vacuole maintains turgor pressure against the cell wall. Nucleus - DNA Storage, Mitochondrion- Energy production, Smooth Endoplasmic Reticulum (SER)- Lipid production; Detoxification, Rough Endoplasmic Reticulum (RER)- Protein production; in particular for export out of the cell, Golgi apparatus- Protein modification and export, Peroxisome- Lipid Destruction; contains oxidative enzymes, Lysosome- Protein destruction. brainliest?
Explanation:
T.F: a phylogenetic tree visually depicts the history of the evolution of species, populations, or genes. it is especially useful for studying the lines of descent and relationships among groups.
The visual representation of the history of a species, population, or gene's evolution is a phylogenetic tree. The links and branching patterns between various species or genetic lines are shown diagrammatically. The answer is true.
In biology and evolutionary research, phylogenetic trees are frequently used to examine the connections and lines of descent among collections of species or genes.
Since they offer a means of comprehending the evolutionary history and relatedness of various animals, phylogenetic trees are particularly helpful for examining the lines of descent and connections among groupings. Researchers can forecast common ancestors, infer evolutionary relationships, and learn more about the speciation and diversification processes by examining the branching patterns and the order of splits in the tree.
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Homeostasis is defined as A. the variety of foods that an organism takes in for energy and survival. B. the control of an organism's external environment, in order to increase comfort and outcompete other organisms. C. a condition, similar to hypnotism, in which an organism is made motionless. D. the dynamic regulation of an organism's internal environment to maintain conditions suitable for survival.
Answer:
D. the dynamic regulation of an organism's internal environment to maintain conditions suitable for survival.
Explanation:
Smoking reduces the surfactant layer in the alveoli. This would cause which of the following to occur? (2 points)
A. Depressed macrophage activity
B. Destroyed red blood cells
C. Reduced ability of gases to diffuse through the water layer
D. Reduced ability of gases to enter or exit the alveolar space
The population of peppered moths have changed over time. The population has changed from primarily light colored to dark colored moths. This is an example of...
a
Mimicry
b
Natural Selection
c
Selective Breeding
d
Camouflage
Answer: b
Explanation:
natural selection occurs when something adapted to the environment to give them an advantage or to survive
2. Carbon has many benefits in an ecosystem. List three helpful ways carbon is used
by humans, plants, and other species:
1)
2)
3)
Carbon is used to build different macromolecules including lipids, carbohydrates and nucleic acids.
Carbon is a fundamental element that is required to build different types of macromolecules.Carbohydrates are biomolecules consisting of carbon, hydrogen, and oxygen.Lipids also contain carbon, hydrogen and oxygen, and they can also contain nitrogen, sulfur and phosphorus.Nucleic acids (and also proteins) contain carbon, hydrogen, oxygen and nitrogen.In conclusion, carbon is used to build different macromolecules including lipids, carbohydrates and nucleic acids.
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The responses of plants to environmental stimuli such as light and gravity are called
A. Tropisms
B. Auxins
C. Dormancy
D. Cytokinins
QUESTION........
The responses of plants to environmental stimuli such as light and gravity are called
A. Tropisms√√√√√√√√√√
B. Auxins
C. Dormancy
D. Cytokinins
ANSWER........
The responses of plants to environmental stimuli such as light and gravity are called. Tropisms.
A. Tropisms
CAN I GET THE CROWN
Answer:
A. Tropisms
Explanation:
Hope this helps
What needs are not being met by a slow-moving or busy line at a school cafeteria? Identify the people, processes, and technologies that play a role in the issue you identified.
how can natural selection account for the long tongues of butterflies?
Answer:
Because butterflies with longer tongues were better equipped to eat nectar from inside flowers, and so it was easier for them to eat and grow. So they were better quipped to survive than those with shorter tongues.
what featureofgenetic mutations can eventuallylead to the evolution of new species?
The feature of genetic mutations that can eventually lead to the evolution of new species is genetic variation.
Genetic variation is a term used to describe the variation in the DNA sequence in a population. Genetic variation occurs both within and among species, and it is responsible for the evolution of new species.
Genetic variation is the foundation for the evolution of new species. Mutations, gene flow, and genetic drift are the three processes that can cause genetic variation. Mutations are alterations in the DNA sequence, while gene flow refers to the transfer of genetic information from one population to another. Genetic drift, on the other hand, is a random event that causes genetic variation.
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a bacterial gene (gene a) ordinarily makes a protein that binds to dna. a mutation of gene a causes an increase in the expression of gene b. we can conclude that
The conclusion of a bacterial gene (gene A) ordinarily makes a protein that binds to DNA and a mutation of gene A causes an increase in the expression of gene B that the protein created by gene A plays a role in repressing gene B expression.
There are several regulatory proteins that can bind to DNA and control gene expression. Gene A creates a protein that binds to DNA in this scenario. However, when gene A is mutated, its protein no longer binds properly, resulting in an increase in the expression of gene B. Therefore, it can be deduced that the protein produced by gene a represses gene b expression. This protein is involved in transcriptional regulation and may function as a transcriptional repressor.
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Blood leaves the heart to go to the rest of
the body through the
Answer:
arteries
Explanation:
goes back through veins
Answer:
blood leaves the heart to go to the rest of the body through the aorta which is the main Artery carrying oxygenated blood
Knowing that birds are endothermic and crocodiles are ectothermic, can you use phylogenetic bracketing to predict whether dinosaurs other than birds are ectothermic or endothermic Match the words in the left column to the appropriate blanks in the sentences on the right. Terms can be used once, more than once, or not at all
- can - endothermic - birds - crocodiles
- ectothermic - cannot
We ___ use phylogenetic bracketing to predict whether dinosaurs other than birds were ____. We only ____ conclude that the dinosaur that gave rise to ____ was ____ as are all living ____.
Phylogenetic bracketing cannot be used to predict whether dinosaurs other than birds were endothermic or ectothermic.
The only conclusion that can be drawn is that the dinosaur that gave rise to birds was endothermic, based on the fact that birds are endothermic.
Phylogenetic bracketing involves making inferences about the characteristics of extinct organisms based on the characteristics of their living relatives. In this case, we know that birds are endothermic (warm-blooded) and crocodiles are ectothermic (cold-blooded). However, the presence of endothermy in birds does not necessarily imply that all dinosaurs, including non-avian dinosaurs, were endothermic.
Phylogenetic bracketing can only be used to infer characteristics in extinct organisms if those characteristics are found in all living descendants of a common ancestor. Since birds are the only living descendants of dinosaurs, we can only conclude that the dinosaur that gave rise to birds was endothermic. The characteristics of non-avian dinosaurs, whether they were endothermic or ectothermic, cannot be determined through phylogenetic bracketing alone.
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How do the functions of DNA and RNA differ? *
1 point
DNA directs protein transport, while RNA aids in energy production.
DNA aids in energy production, while RNA directs protein transport.
O
DNA stores genetic information, while RNA relays genetic information for protein
synthesis.
DNA relays genetic information for protein synthesis, while RNA stores genetic
information.
Which sequence shows a correct pathway for the
flow of energy in a food chain?
A) bacteria → grass → fox → owl
B) grass grasshopper → frog - snake
C) fungi - beetle → algae - mouse
D) algae → snake → duck → deer
The sequence grass → grasshopper → frog → snake shows a correct pathway for the flow of energy in a food chain (Option B).
In a food chain, primary producers (e.g., plants and algae) generate organic compounds and energy that enter into the chain.The primary consumers (e.g., herbivores) are organisms that eat primary producers.Subsequently, secondary consumers (e.g., carnivores) are organisms that eat primary consumers and so successively in all the levels.In conclusion, the sequence grass → grasshopper → frog → snake shows a correct pathway for the flow of energy in a food chain (Option B).
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5 countries with Very low undernourishment
Answer:
NIGERIA
AFGHANISTAN
CHAD
TIMOR-LESTE
MADAGASCAR
Explanation:
Petra finds a discolored stain on the carpet at a suspected crime scene. What two presumptive tests might she use to determine if the stain is blood? First, Petra sprays the discolored area with , which returns a glowing blue color. However, she knows that this chemical might also turn blue with other substances that contain iron. Subsequently, she uses , which turns pink, indicating the presence of hemoglobin.
Answer:
First, Petra sprays the discolored area with
Fluorescein
, which returns a glowing blue color. However, she knows that this chemical might also turn blue with other substances that contain iron. Subsequently, she uses
Phenolphthalein
, which turns pink, indicating the presence of hemoglobin.
Answer:
a. luminol b. phenolphthalein
Explanation:
looked it up, luminol turns green and the other one turns pink
7. Compare and contrast the way carbon is used in respiration and photosynthesis.
8. How does carbon get into the ocean?
PLEASE HELP ME I AM A LONELY WEEBO AND THE ONLY THING THAT WOULD MAKE ME HAPPY IS IF SOMEONE GAVE ME THE ANSWERS TO THIS SH!aTt
Answer: 7. Photosynthesis makes the glucose that is used in cellular respiration to make ATP. The glucose is then turned back into carbon dioxide, which is used in photosynthesis. ... While photosynthesis requires carbon dioxide and releases oxygen, cellular respiration requires oxygen and releases carbon dioxide. 8. Carbon gets incorporated into marine organisms as organic matter or structural calcium carbonate. When organisms die, their dead cells, shells and other parts sink into deep water. Decay releases carbon dioxide into this deep water. brainliest?
Explanation:
lol helplpppppppppppppp
Answer:
Metamorphic for first
Igneous for secomd
Sedimentary for third
Explanation:
Pls vote me as brainlest!
First one is igneous rocks
Second one is metamorphic rocks
The third one is sedimentary rocks
What is the highest taxonomic rank of organisms?
The Highest Taxonomic Rancho Of Organisms Is Domain A Domain
Classification (8A.S, 8B.R, 8C.S]:Question 4
The classifications of four insects are shown in the table. Which two
insects are the most closely related?
plants release water vapor through their leaves via a process called ________. a. transpiration b. percolation c. condensation d. evaporation
The process through which plants release water vapor through their leaves is known as transpiration. This process plays a significant role in the water cycle.
The process through which plants release water vapor through their leaves is known as transpiration. This process plays a significant role in the water cycle. Explaining water vapor, transpiration and the significance of the process in the water cycle is given below: Water vapor is the gaseous state of water. When water molecules evaporate from a surface, they turn into water vapor. As the vapor rises in the atmosphere, it cools and condenses, forming clouds. When the clouds become too heavy with water droplets, they fall as precipitation in the form of rain, sleet, or snow. Transpiration is the process through which plants release water vapor into the atmosphere. It is the evaporation of water from plants through the stomata on their leaves. Transpiration helps in the uptake of water from the roots of the plant and also helps to regulate the temperature of the plant. Water vapor released through transpiration cools the leaf surface and the surrounding environment. Significance of transpiration in the water cycle: The process of transpiration plays a significant role in the water cycle. When water vapor is released into the atmosphere through transpiration, it contributes to the moisture in the atmosphere. The moisture eventually condenses and falls back to the earth as precipitation. This cycle of transpiration, evaporation, and precipitation ensures a constant supply of water to sustain life on earth. Thus, transpiration is an important part of the water cycle.
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Explain the difference between oxidation and digestion.
The one that is loosing electron is oxidation process and the one that is gaining electron is reduction.
b) Reduction reaction occur at cathode while oxidation reaction occur at Anode.
Explanation:
The main difference between the reduction and oxidation process is based on gaining and loosing of electron.
Reduction and oxidation both occur simultaneously. one is loosing electron and other is gaining. The one that is loosing electron is oxidation process and the one that is gaining electron is reduction.
B) Reduction reaction occur at cathode while oxidation reaction occur at Anode
What are two examples of age bias in sport that you have seen or experienced? What effects do you think that age differences had in those situations?
Do you think athletes are getting faster, better, and stronger as they age?
How have advancements in technology and health science taken away age as a factor in sport performance? Name one specific advancement in health science or technology.
Most research related to age diversity and discrimination focuses on older athletes and employees. What are some ways and/or examples that younger athletes or employees may also face age-related discrimination?
Two examples of age bias in sports can include exclusion from certain competitions or teams based on age and the assumption that older athletes are less capable or less valuable than younger athletes. In some sports, there are age restrictions or age categories that can prevent older athletes from participating in certain events. Additionally, older athletes may face skepticism or assumptions about their physical abilities or performance potential simply based on their age. These biases can limit opportunities for older athletes and undermine their confidence and recognition.
Athletes generally experience physical declines as they age, such as decreased muscle mass, slower reaction times, and reduced endurance. However, it is not accurate to say that athletes universally decline in performance as they age. Some athletes defy expectations and continue to excel and achieve remarkable feats as they get older. It depends on various factors, including genetics, training methods, and individual dedication to maintaining their physical condition. While there may be declines in certain physical attributes, athletes can compensate with experience, knowledge, strategy, and mental resilience.
Advancements in technology and health science have significantly impacted age as a factor in sports performance. One specific advancement is the development of sports-specific training techniques and tailored exercise regimens that can help athletes of all ages optimize their performance. Additionally, advancements in injury prevention and rehabilitation techniques have allowed athletes to recover more effectively from injuries and maintain their performance levels for longer periods.
While research on age diversity and discrimination often focuses on older athletes or employees, younger athletes can also face age-related discrimination. In some sports, younger athletes may be overlooked or underestimated due to their perceived lack of experience or physical development. They may face barriers or biases that prevent them from accessing opportunities or being taken seriously. Age-related discrimination can occur in various forms, and it is important to address and challenge these biases across all age groups to promote fairness and inclusivity in sports and other areas of life.
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How might we determine if albinism is an inherited or acquired trait?
Answer:
In all types of OCA and some types of OA, albinism is passed on in an autosomal recessive inheritance pattern. This means a child or something else has to get 2 copies of the gene that causes albinism