Molecules always tend to move downhill i.e, from higher concentration to lower concentration, but if a molecule has to move uphill i.e towards higher concentration then energy has to be spent.
Active transport requires energy in the form of ATP i.e. ATP must break down for the movement of molecule against its concentration gradient. (ans is A)
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The table below shows the habitat and foraging habits of two fish species in a marine ecosystem. Fish Species Data Species Habitat Eating Habits A Up to 1,000 meters deep Eats large fish B Deeper than 1,000 meters Eats shrimps An invasive species that lives in habitats up to 1,000 meters deep and feeds on small fish only was introduced in this ecosystem. What would be the likely impact?
Species A’s population will decrease due to limited space. Species B’s population will decrease due to limited space.
The population of species A will decrease due to limited prey.
The population of species B will decrease due to limited prey.
The likely to be impacted is Species A's population will decrease due to limited space in the ecosystem. The correct option is A.
What is a habitat?A habitat is a place where plants, animals, and other organisms can call home. Two types of habitats can be broadly distinguished. They are habitats on land and habitats in water. Terrestrial habitats are where land-dwelling animals call home.
There are many different types of terrestrial habitats, including wetlands, ice caps, grasslands, deserts, mountain ranges, and coastal regions.
Habitat creation entails the establishment of ecosystems in places where those types of systems either did not previously exist or, if they did, had undergone such drastic changes over the course of time that all continuity had been lost.
Therefore, the correct option is A, Species A's population will decrease due to limited space in the ecosystem.
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Answer:
Species A’s population will decrease due to limited space.
Explanation:
Don't try to use the ai to search it bc it kept giving me the wrong answer
what characteristics do all living things have in common
The characteristics that all living things have in common are as follows:
Cellular organization.The ability of reproduction.Growth and development.Homeostasis.The ability of adaptation. What are livings things?Living things may be defined as a large group of organisms including plants, animals, microorganisms, etc. that have the ability of respiration, reproduction, adaptation, growth, response to the environment, etc.
All living organisms follow different strategies of cellular respiration, reproduction like sexual or asexual, adaptation, etc. Such strategies make them to classifies under a specific category according to the five kingdom classification of Robert Whittaker.
For example, all the organisms that are capable of doing photosynthesis are classified into the kingdom Plantae.
Therefore, it is well described above.
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Which of the following statements regarding marital satisfaction is FALSE?
a. The more children couples have, the lower their level of marital satisfaction.
b. Parents exhibit lower marital satisfaction than non-parents.
c. Parents of adolescents exhibit lower marital satisfaction than parents of infants.
d. Mothers of infants exhibit the largest decrease in marital satisfaction.
Which actions have a positive effect on air resources?
using fossil fuels
using solar energy
walking to work or school
using trains or buses to commute
removing vegetation such as trees and shrubs
Answer:
walking to work or school
Explanation:
Egg and sperm cells contain half the number of chromosomes as body cells. Egg and sperm cells are known as _______ cells. A. Minor B. Major C. Haploid D. Diploid
Answer:
C.haploid
Explanation:
as the egg and the sperm carry half the number of chromosomes,just to differentiate the genetic material in two cells we call the egg and sperm as haploid and the fertilized cell as diploid, so the two can be easily differentiated.
35 PTS!!! Which strategies are recommended to conserve and manage water? Check all that apply.
1. Stop using water in all areas of life.
2. Use technology to produce clean water.
3. Use water wisely at home and in industry.
4. Take care of living things that live in water.
5. Encourage recreational activities year-round.
6. Use techniques and tools to reduce water loss.
Answer:
b c d f
Explanation:
am aougus imposter
Strategies recommended to conserve and manage water include using water wisely, reducing water loss, and taking care of aquatic life.
Explanation:To conserve and manage water, several strategies are recommended:
Use water wisely at home and in industry: This includes turning off faucets when not in use, using low-flow shower heads, and only using the necessary amount of water for activities like laundry.Use techniques and tools to reduce water loss: This involves implementing water-saving techniques like rainwater harvesting, using gray water for purposes like watering gardens, and improving irrigation systems to minimize water evaporation.Take care of living things that live in water: Protecting aquatic life and their habitats is crucial for maintaining a sustainable water ecosystem.Learn more about Water conservation here:https://brainly.com/question/30333660
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7. Contrast cytokinesis in animal cells and plant cells.
This is the exact answer they're looking for I promise:
Sample Response: Cytokinesis occurs in both animal and plant cells. It is the division of the cytoplasm, which is the final stage of the cell cycle. In animal cells, the cell membrane pinches together around the middle of the cell to divide the cytoplasm. In plant cells, the process is a little different. Because the cell wall of a plant cell is rigid, it does not pinch in like the more flexible cell membrane in animal cells. Instead, a structure called a cell plate forms across the middle of the cell. The cell plate moves outward and eventually fuses with the cell membrane to divide the cell into two cells. Then, new cell walls form around the cell membranes.
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Answer:
Cytokinesis occurs in both animal and plant cells. It is the division of the cytoplasm, which is the final stage of the cell cycle. In animal cells, the cell membrane pinches together around the middle of the cell to divide the cytoplasm. In plant cells, the process is a little different. Because the cell wall of a plant cell is rigid, it does not pinch in like the more flexible cell membrane in animal cells. Instead, a structure called a cell plate forms across the middle of the cell. The cell plate moves outward and eventually fuses with the cell membrane to divide the cell into two cells. Then, new cell walls form around the cell membranes.
Explanation:
Dentify the next step in this sequence of events that occurs in the formation of rock. Buried, compacted, heated, and ________ A) buried B) eroded C) deposited D) recrystallized
The correct answer is option D, that is, recrystallized.
The foremost step in the rock cycle is a burial after that compaction of rocks takes place. Then the rocks are heated because of the heat present beneath the ground. From here, temperature and pressure play an essential function in predicting that how the rock will modify, that is, the next step in the rock cycle is known as re-crystallization.
There is a type rabbit that has brown hair in the spring and summer but it changes color in the fall and winter
The rabbit that changes its fur color from brown in spring and summer to white or gray in the fall and winter is the snowshoe hare. This adaptation helps it blend into its surroundings, providing effective camouflage during different seasons and protecting it from predators.
The rabbit you are describing is likely the snowshoe hare (Lepus americanus), a small mammal found in North America. Snowshoe hares exhibit a fascinating adaptation known as seasonal camouflage, also called molting.
In spring and summer, snowshoe hares have brown fur, which helps them blend into the forest undergrowth filled with vegetation. This brown coat serves as effective camouflage during the warmer months when the forest is lush and green. It helps protect them from predators like lynxes, foxes, and owls.
However, as the days grow shorter and temperatures drop in the fall, snowshoe hares begin to undergo a transformation. Their brown fur gradually changes to white or gray in preparation for the snow-covered winter landscape. This transformation is triggered by hormonal changes, mainly the decreasing daylight hours. The new white or gray coat helps them blend into the snow and ice, providing camouflage that is crucial for their survival during the harsh winter months.
This adaptation ensures that snowshoe hares are well-camouflaged year-round, allowing them to avoid detection by predators while they forage for food and go about their daily activities. This remarkable seasonal color change is a remarkable example of nature's ability to adapt to the challenges posed by different seasons and environments.
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Which rate indicates the number of children that would be born per women if she were to live to the end of her child-bearing years?
Answer:
The total fertility rate
Explanation:
The total fertility rate is a term that refers to the number of children that would be born per women if she were to live to the end of her child-bearing years.
Total fertility rate is also called as fertility rate, potential natality,total period fertility rate or period total fertility rate .
We can simply say that it is an indicative of how many children a woman can produce during her lifetime if, she survives from birth to the the last age in which she can reproduce.
The total fertility rate is not a synthetic rate means that it do not indicates fertility rate of a specific group of women of a specific area but it is just an imaginative rate that is a measure of the fertility of any woman who reaches her reproductive like from 15-49 and recorded.
Hope it help!
Answer:
Fertility rate
Explanation:
The model below represents a phase of meiosis. What stage of meiosis does the picture below represent?
1Points
A drawing of a phase of meiosis with the chromosomes paired up and the centrioles formed.
A
prophase I
B
prophase II
C
anaphase I
D
anaphase II
The correct answer is anaphase two.
Answer:
The correct answer will be option A (prophase I).
Explanation:
Meiosis is a type of cell division in which a single cell divides to form 4 daughter cells with half number of chromosomes of parents.
Meiosis proceeds in two-step division processes that is meiosis I and meosis II. Each stage of cell division occurs in four phases- prophase, metaphase, anaphase and telophase.
During prophase I, the chromosomes begin to condense and form X-shaped structures, chromosomes pair up ,shows recombination or crossing over, shows meiotic spindles between the centrioles at oppsoite poles and nuclear membrane which starts degrading at the end of prophase phase.
Thus, option A (prophase I) is the correct answer.
If a ball that a five-month-old infant is playing with rolls under a chair (and out of sight), the infant will not look for it. Piaget believed that this occurs because the infant
a. does not understand the concept of roll.
b. has a short attention span.
c. has not developed conservation.
d. has not developed object permanence.
In the skin, the epidermis can be compared to what analogy?
dog = cat = 54= raining cats and dogs
Answer:
a wall that protects a country from invaders.
Explanation:
Some steps in cell division are shown below:
1. Haploid chromosomes condense
2. Number of chromosomes are reduced to half
3. Chromosomes move to the equatorial plane between the poles
4. Centromeres separate and the sister chromatids are pulled apart to opposite poles by the spindle
Which of the following steps is most likely to occur during meiosis 2 only?
The haploid chromosomes would condense and chromosomes would move to the equatorial plane
Answer:
1. Haploid chromosomes condense
3. Chromosomes move to the equatorial plane between the poles
4. Centromeres separate and the sister chromatids are pulled apart to opposite poles by the spindle
Explanation:
Meiosis consists of two divisions namely meiosis I and Meiosis II. Meiosis I is reduction division and Meiosis II is equational division similar to mitosis. Following meiosis I, Haploid daughter cells are formed which enter meiosis II without passing going through interphase or DNA replication. Since meiosis II resembles a mitotic division, the steps are similar to mitosis. Therefore, in meiosis II, haploid daughter chromosomes condense, Chromosomes move to the equatorial plane between the poles and centromeres separate and the sister chromatids are pulled apart to opposite poles by the spindle.
If you were to place the bear into the energy pyramid, the bear would go on level _____ and have ________ amount of energy available to it.
A) A; the least
B) C; the least
C) A; the greatest
D) B; an intermediate
Answer:
the answer its A
Explanation:
i just did it
The reactions of glycolysis occur in the cell's _____________; the reactions of the Krebs (citric acid) cycle occur in the ___________.
A. cytoplasm, mitochondria
B. cytoplasm, cytoplasm
C. mitochondria, mitochondria
D. mitochondria, cytoplasm
Hi there!
Interesting question about cellular respiration & photosynthesis.
Glycolysis is the first step when it comes to breaking down glucose (6 carbon) into pyruvic acid (3 carbon). Glycolysis occurs in the cytoplasm. On the other hand, the Krebs cycle, which I like to call the tricarboxylic cycle, is a group of chemical reactions that take Oxygen (O2) and turn it into Carbon dioxide (CO2) and water (H2O) as waste products. The Krebs cycle occurs in the mitochondria.
Therefore, your answer should be A. cytoplasm, mitochondria.
Which of these is an example of an internal factor which affects the Earth's climate?
decrease in the Sun's energy
changes in the shape of Earth's orbit
increase in atmospheric carbon dioxide due to volcanic eruptions
changes in the gravitation pull between the Earth and Sun
increase in atmospheric carbon dioxide
The sodium-potassium pump makes the cell interior more ______ by pumping ____ sodium ions out of the cell
for every ____ potassium ions pumped in.
Answer:
The sodium potassium pump helps in maintaining the acid-base balance of the body and helps in proper kidney function. It also functions to maintain the electrical charge within the cell. The sodium and potassium ions are transported inside and outside of the to maintain the proper balance ions inside the cells. This pump makes the cell interior more negative by pumping three sodium atoms out of the cell and two potassium ions going inside the cell.
Final answer:
The sodium-potassium pump makes the cell interior negative by removing three sodium ions for every two potassium ions it brings in, resulting in a net loss of positive charge and contributing to the cell's negative membrane potential.
Explanation:
The sodium-potassium pump makes the cell interior more negative by pumping three sodium ions out of the cell for every two potassium ions pumped in. The pump operates by binding three sodium ions and transporting them outside the cell membrane, followed by binding two potassium ions and transporting them inside. This activity is energetically driven by the hydrolysis of ATP, which provides the energy necessary for the pump to move ions against their concentration gradients, achieving active transport.
Due to this particular exchange ratio, for every cycle, the pump effectively exports one more positive charge than it takes in. This results in a net loss of positive charges inside the cell, which contributes to the negative charge of the cell's interior. Furthermore, the sodium-potassium pump is considered an electrogenic pump, generating an electrical and chemical gradient across the cell membrane. These gradients are essential for various cellular functions, including nerve impulse transmission and muscle contraction.
Which landform represents a flowing, moving stream of water that feeds into an ocean?
A river.
The definition for river is "a large natural stream of water flowing in a channel to the sea, a lake, or another such stream."
However, in your question you asked for a 'land form', but you also asked for a 'stream of water'. This confused me slightly, so please let me know if I did not interpret the question you were asking correctly. Also, a river is a stream of water, however, is not a landform.
Answer:
A river
Explanation:
A river flows into the ocean
Why do scientists use weather and climate maps?
Climate classifications help people know what types of conditions a region usually experiences through the year. Rather than having to describe the full range of conditions observed in a region over each month or season of a year, a classification scheme can communicate expected conditions using just two or three terms
What characteristic helps conifers survive when the weather is dry? waxy scales scale-like seeds needle-like leaves heavy trunks
Conifers survive in dry weather mainly due to their needle-like leaves, which have a small surface area and sunken stomata, aiding in reducing water loss.
Explanation:Conifers, a group of gymnosperms, have certain characteristics that help them survive in dry conditions. Most notably, their needle-like leaves play a vital role in survival. These needles have a smaller surface area than regular broad leaves and contain sunken stomata, both of which aid in reducing water loss. Moreover, the needle's shape and its waxy cuticle also limit water loss through transpiration. Hence, when the weather is dry, these attributes help conifers conserve their water supply and endure the conditions.
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A common chemical reaction in cells is to add a phosphate group to adenosine diphosphate (ADP) to form adenosine triphosphate (ATP). What purpose does this reaction serve?
Hallo :3
Your question is related to cellular respiration/photosynthesis.
The conversion of ADP to ATP is scientifically known as chemiosmotic phosphorylation. This reaction, which takes place in the cytoplasm, ensures that ADP (low energy) is converted to ATP(higher energy). ATP, the currency of life, is higher at storing energy. This reaction serves as an energy recycling process to build a better molecule.
What attractive force holds two hydrogen atoms and one oxygen atom together to make the substance water?
A.Molecules
B.Valence electrons
C.Chemical bonding
D.Cations
the answer is c.chemical bonding bc its the attraction twords atoms
Smooth muscle cells lack which protein(s)?
A. actin only
B. myosin only
C. troponin only
D. tropomyosin only
E. troponin and tropomyosin
The correct answer is C. troponin only.
The smooth muscle cells contain similar elements like the cardiac and skeletal muscle cells including actin, myosin and tropomyosin but they contain troponin.
Smooth muscle tissues are non striated and produce their own connective tissue called endomysium. Smooth muscle cells also lack sarcomeres but have other thin and thick filaments along with actin and myosin contractile proteins.
Due to lack of troponin the cross bridge formation is regulated by the regulatory protein calmodulin instead of the troponin- tropomyosin complex.
The correct option is C. troponin only, as smooth muscle cells lack the regulatory protein troponin, which is present in skeletal and cardiac muscles to aid in contraction regulation.
The correct option to the question "Smooth muscle cells lack which protein(s)?" is C. troponin only. Unlike skeletal and cardiac muscle cells, smooth muscle cells do not contain the regulatory protein troponin. In relaxed skeletal muscle, for instance, the myosin-binding site on actin is blocked by tropomyosin, and the presence of troponin regulates the interaction between myosin and actin. However, smooth muscle regulation is different, and it does not involve troponin. Instead, smooth muscle contraction is controlled through the phosphorylation of myosin light chain and other regulatory mechanisms without the need for troponin.
It's important to note that smooth muscle does contain tropomyosin and the contractile proteins actin and myosin, which are all crucial for muscle contraction.
Which part of the electromagnetic spectrum is typically used to make images based on the temperatures of objects?
X-rays
radio waves
infrared light
visible light
infrared light is used for this
The correct answer is option is infrared light.
The part of electromagnetic radiation that is used to make images based on the temperature of the objects is done by the infrared light.
All the objects emits some energy(heat ) in the form of temperature. The more hotter the object more radiation it emits.
The heat sensor (thermal camera) is capable of detecting tiny differences in the temperature of the object.
As the different objects have different temperature, image appear as distinct thermal image.
Which invention played the biggest role in the discovery of cells by early scientists?
Watch this video about kipunji monkeys in Africa. If you were a conservationist monitoring the populations of these monkeys, what method would you choose?
link to da vid- https://app.edmentum.com/content-delivery/resource/67ba7f1b-ec1c-4485-a1b8-339de13b233a (copy n paste it)
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Answer:
Plato answer
Explanation:
Tagging and tracking would be the most effective method of monitoring the monkeys. They are large animals that are quite mobile, so many of the other methods wouldn’t work as well. Because these monkeys were recently discovered, we likely don’t know much about them. This form of monitoring will help us to better understand their behavior and resource needs. This information will help us determine exactly what threatens the species, so we can determine the best way to conserve the species.
Paraphrase as needed
The line transect method, camera traps, and genetic analysis would be suitable methods for monitoring kipunji monkey populations in Africa.
Explanation:If I were a conservationist monitoring the populations of kipunji monkeys in Africa, I would choose the line transect method to gather data. This method involves walking along a predetermined path and recording every sighting or evidence of the species. By measuring the distance between each observation, I could estimate population density and track any changes over time.
In addition to the line transect method, I would also utilize camera traps. These are motion-activated cameras placed in strategic locations, such as known feeding or resting spots. Camera traps will capture images or videos of the monkeys, allowing me to identify individuals and estimate population size and behavior.
Lastly, I would consider using genetic analysis to study the kipunji monkeys. By collecting DNA samples from feces, hair, or tissue, I could analyze their genetic diversity, relatedness, and population structure. This information is crucial for understanding their overall health and potential threats to their conservation.
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Loggerhead turtles need an incubation temperature between about 28 and 32 degrees Celsius. When temperatures are higher, more female turtles are produced. When temperatures are lower, more males are produced. When the temperatures exceed this range, the offspring don't develop and die. Scientists have observed that, in Florida, 90 percent of the turtles born are females. If global climate change continues, what is the best prediction that can be made based on these observations?
A. Male turtles will move to cooler waters, leaving females in warmer regions.
B. More female turtles will find mates, so the population will increase in size.
C. The turtle population will become smaller over time.
D. The turtle population will become entirely male.
A.Make turtles will move to cooler waters,leaving females in warmer regions.
I think.
Answer:
C. The turtle population will become smaller over time.
Explanation:
We know that climate change is making the earth hotter and hotter and as we can see in the question above, the population of Loggerhead turtles is directly influenced by temperature. Warmer temperatures favor the birth of female turtles, while males are disadvantaged. As seen in the question, this can be seen in Florida, where 90% of turtles born are female.
If climate change continues to influence a hot climate, male turtles will appear in smaller and smaller proportions. As a result, mating and breeding will decrease and the turtle population will decrease over time.
Please help. I can't seem to understand this.
Fill in the blanks to complete each statement about how mountains affect precipitation.
Coastal mountains force cool, moist air from oceans to rise as it moves toward land. Clouds form, and precipitation falls on the _____ side of the mountain. On the _____ side of the mountain, very little precipitation falls.
Answer:
1. windward
2. leeward
Explanation:
Precipitation falls on the windward side of a mountain due to the air cooling and condensing as it rises, and very little falls on the leeward side due to the air warming and being able to hold less moisture, creating a rain shadow effect.
Explanation:Coastal mountains force cool, moist air from oceans to rise as it moves toward land. Clouds form, and precipitation falls on the windward side of the mountain. On the leeward side of the mountain, very little precipitation falls. This is known as the rain shadow effect, where the air, having released most of its moisture on the windward side, becomes dry by the time it descends on the leeward side.
Nearness to oceans and mountain ranges greatly influences the amount of precipitation an area receives. The air cools and condenses as it rises over a mountain, releasing precipitation mostly on the ocean-facing slopes. As the air descends on the other side, it warms up, reducing its capacity to hold moisture, thus creating dry conditions on that side of the mountain.
In extreme cases, such as the Atacama region of Chile, the leeward side can have extreme desert conditions due to the effectiveness of the Andes Mountain range in depleting the moisture from the prevailing winds.
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the bacteria in a colony are unable to perform conjugation.How would this hurt the bacterial colonys chance for survival
The colony would have less genetic variation. The Bacteria in the colony would be too genetically similar
Answer: Genetically similar
Explanation:
Conjugation can be defined as the process by which bacteria transfers the genetic material through a tube like material between two cells.
This method of gene transfer provides genetic variability to the bacterial cell by giving bacteria antibiotic resistant gene and making it an antibiotic resistant bacterial cell.
So, if the cell is unable to perform conjugation, there will be no genetic variability in the bacterial cell.