Baleen whales have structures in their mouths which help them to obtain resources.
What is a Baleen?This is referred to as slender keratin plates that hang from the upper jaw of Baleen whales.
Tbis helps this type of whales to obtain many resources such as preys together at a time thereby making option C the most appropriate choice.
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The diagram represents the development of an embryo.
Which choice is true about the resulting embryo?
It is genetically different from its parents.
It is genetically identical to its parents.
It contains a different number of chromosomes from its parents.
It contains twice the genetic information of its parents.
Answer:
it contains twice the genetic information of its parents
Explanation:
each parent gametes that will be responsible for fertilisation have a half number of chromosomes
A hormone that promotes gluconeogenesis in the liver is:.
Answer:
Glucocorticoids
Explanation:
A hormone that promotes gluconeogenesis in the liver is glucagon.
EXTRA:
Meanwhile, insulin promotes the uptake of glucose into cells to reduce the level of glucose in the blood.
These two hormones work together two regulate your blood sugar
Hope this helps!
A student studies an inheritance shown in the pedigree. The shaded figures represent organisms that display the inherited traits. If the inherited trait is autosomal dominant represented by ‘A’, what is the genotype of the male parent?
A) aa
B) Aa
C) The first allele is A, but we don’t know what the second allele is.
D) AA
Answer:
its option A
Explanation:
7. Discuss the practical and theoretical differences between an interval training program used to improve the ATP-PC system and a program designed to improve the ATP production via glycolysis.
The ATP-phosphocreatine (PC) system is more suitable in conditions of high energy expenditure, whereas glycolysis is a step during cellular respiration.
What is cellular respiration?Cellular respiration is a chemical process by which aerobic cells generate energy in the form of ATP by using foods as a source of energy in presence of oxygen.
During cellular respiration, glycolysis (glycolytic pathway) is the first step for ATP production.
The ATP-PC system is anaerobic, works in hypoxia conditions (oxygen absence), and is faster to provide energy than cellular respiration.
However, the ATP-PC system is energetically less efficient than cellular respiration in terms of the number of ATP molecules produced per unit of glucose.
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Why does the land on earth appear to be stable when in fact it is changing?
Deserts are found around the globe, generally around a belt of ______degrees north and south latitude where global wind patterns carry down dry air from the upper atmosphere.
Deserts are found around the globe, generally around a belt of 30 degrees north and south latitude where global wind patterns carry down dry air from the upper atmosphere.
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In which situation has the precautionary principle been least strictly applied?
A chain of health stores is allowed to sell over-the-counter nutritional supplements that
have not been tested by the Food and Drug Administration for adverse effects.
A foreign marketplace relaxes certain restrictions on genetically modified produce after
testing demonstrates that the produce poses no health risks to consumers.
A toy company recalls a particular brand of action figure after several young children nearly
die from choking on loose pieces of plastic.
The U. S. Government requires that cigarette manufacturers include on cigarette packages a
warning from the surgeon general that smoking causes diseases such as lung cancer
The precautionary principle is invoked after there has been established that there is risk in the use of a product.
What is the precautionary principle ?The precautionary principle is invoked when it is supposed that a particular product or a drug could put the lives of people at risk. This has been invoked many times in the health sector.
The situation in which the precautionary principle is least strictly applied is when a chain of health stores is allowed to sell over-the-counter nutritional supplements that have not been tested by the Food and Drug Administration for adverse effects.
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Which is NOT an example of a transfer payment?
A. welfare
B. salaries
C. Medicare
D. Social Security
Answer:
B. Salaries
Explanation:
Answer:
b
Explanation:
in your own words list Kepler's three laws of planetary motion
Answer:
1) Every planet's orbit is an ellipse with the sun at a focus.
2) A line joining the sun and a planet sweeps out equal areas in equal time(s)
3) The square of a planet's orbital period is proportional to the cube of semi major axis of it's orbit
compare and contrast the five types of evidence that support the theory of evolution
There are five lines of evidence that support evolution: the fossil record, biogeography, comparative anatomy, comparative embryology, and molecular biology. The basic idea of natural selection is that a population of organisms can change over the generations if individual having certain heritable traits leave more offspring than other individuals. The result of natural selection is evolutionary adaptation, a population’s increase in the frequency of traits that are suited to the environment. In modern terms, we would say that the genetic makeup of the population has changed over time, and that is one way to define evolution. Evolution leaves observable signs. There are five lines of evidence that support evolution: the fossil record, biogeography, comparative anatomy, comparative embryology, and molecular biology.
What is the first part of an experiment and
becomes the basis of what you are testing?
A. the results of the experiment
B. the dependent variable
C. a hypothesis
D. the control group
Which statement best describes how bacteria recycle matter in an ecosystem?.
What describe how bacteria recycle matter in an ecosystem is that Bacteria break down organic debris to recycle nutrients in the ecosystem.
What is Recycling?Recycling is the process where wastes are collected and are break down into smaller and new pieces by microorganisms such as bacteria to form new product that are effective,healthy and use ful to the ecosystem.
Therefore, What describe how bacteria recycle matter in an ecosystem is that Bacteria break down organic debris to recycle nutrients in the ecosystem.
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when is glycogen , which is stored in the liver , converted into glucose and released into the blood ?
Answer:
This stored form of glucose is made up of many connected glucose molecules and is called glycogen. When the body needs a quick boost of energy or when the body isn't getting glucose from food, glycogen is broken down to release glucose into the bloodstream to be used as fuel for the cells.
list 3 differences between sun leaves and shade leaves
Answer:
Partial sun is between four and six hours of sun a day. Partial shade is two to four hours of sun per day. Shade, in gardening terms, means less than two hours of sunlight a day. Leaves which grow in the shade ('shade leaves') are generally larger in area but thinner than leaves which grow in full sunlight ('sun leaves'). Sun leaves become thicker than shade leaves because they have a thicker cuticle and longer palisade cells, and sometimes several layers of palisade cells.
What are ecosystem services? provide two examples and explain how these services benefit people. (site 1)
Ecosystem services is an expression that makes reference to different uses derived from the natural environment (ecosystems).
What are ecosystem services?The expression 'Ecosystem services' makes reference to different uses that humans make from the natural environment.
These services include has both social and economic importance for human activities (e.g., tree extraction and deforestation).
Thus, Ecosystem homeostasis is fundamental for the development of a society and it should not be exploited.
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Answer:
Ecosystem Services refer to the benefits that humans receive from the natural environment. They are the various processes and functions that ecosystems provide, such as the purification of air and water, nutrient cycling, and the provision of food, fuel, and fiber. Ecosystem Services are crucial for human survival and well-being, and they are essential for maintaining the balance of the planet's natural systems. One example of an ecosystem service is the pollination of crops by bees and other insects. Pollinators are responsible for fertilizing flowers, which allows plants to produce fruits, vegetables, and seeds. Without pollinators, many crops would not be able to produce a yield, resulting in a significant reduction in food production. Additionally, pollinators are essential for maintaining the diversity of plant species, which is essential for the health of ecosystems. The economic value of pollination services has been estimated to be worth billions of dollars annually. Another example of an ecosystem service is the role of wetlands in mitigating flooding and reducing erosion. Wetlands act as natural sponges, absorbing and storing water during heavy rainfall and releasing it slowly over time. This helps to reduce the risk of flooding downstream and prevents soil erosion. Wetlands also provide important habitats for a diverse range of plant and animal species, which supports the overall health and resilience of ecosystems. The economic value of wetlands in terms of flood control and erosion prevention has been estimated to be worth billions of dollars. In conclusion, ecosystem services are essential for human well-being and the health of the planet's natural systems. They provide a wide range of benefits, including food production, water purification, flood control, and erosion prevention. The examples of pollination and wetlands demonstrate how ecosystem services benefit people by supporting food production and reducing the risk of natural disasters. It is important to recognize the value of ecosystem services and to take steps to protect and conserve them for future generations.
Explanation: 100% on edge!
____________ livestock are produced with extra copies of growth hormone genes to allow them to grow faster and produce meat that is low in fat.
Answer:
Transgenic
Explanation:
I did the the usa test prep
is the following sentence true or false? Changes in chromatin structure and histone DNA binding are associated with changes in gene activity.
Answer: The correted answer is true
Explanation:
Changes in chromatin structure and histone DNA binding are associated with changes in gene activity. True)
why do we need water and food
Answer:
To help regulate temperature and maintain other bodily functions
Explanation:
does that help
Why do so some birds addict to smoke?
Nicotine is absorbed easily through the skin and feathers of birds. The smoke emitted from cigarettes will release nicotine into the air and that nicotine will settle on surfaces. These surfaces include your bird’s cage, bowls, toys and the bird itself. When a bird has nicotine land on their skin from secondhand smoke they will many times pick at their feathers or bite at their feet. Some will bite at themselves to the point that they create open wounds.
Respiratory infections and lung cancers are also a concern for birds kept in an environment where secondhand smoke is prevalent. Pneumonia is a very serious condition in domesticated birds and can lead to death.
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Sugar is a type of carbohydrate.
(i) Eating too much sugar can make a person overweight.
Suggest why.
Answer:
Explanation:
--> Excess sugar may cause you to pack on weight because it's high in calories while offering few other nutrients.
: )
In a variety of ways, a high-sugar diet can cause weight gain. It's high in empty calories that have no nutritional value, causing your body to store fat and tricking your brain into wanting more.
Which of the following best explains why few impact craters are found on earth?
A. Impacts on earth do not form craters.
B. Erosion has erased most of the impact craters on earth.
C. Most impacts occurred before earth was formed.
D. Few impacts have occurred on earth.
Answer:
i think it would be C
hope that helps if not i can change it
Explanation:
differentiate the types of muscle- skeletal, cardiac, smooth
Answer:
Skeletal muscle moves bones and other structures. Cardiac muscle contracts the heart to pump blood. The smooth muscle tissue that forms organs like the stomach and bladder changes shape to facilitate bodily functions.
Explanation:
Answer:
cardiac muscles perform involuntary muscular movements of the heart, aiding the heart to pump blood throughout the body, while skeletal muscles perform voluntary muscular movements of bones, aiding physical movements of the body such as walking, running, and writing and smooth muscles perform an involuntary muscular movements of internal organs, aiding functions of the body such as digestion, urination, and breathing.
All cells have _____. (Select all that apply.)
a nucleus
an outer membrane or plasma membrane
large vacuoles
cytoplasm
a cell wall
chloroplasts
protoplasm
All cells have:
plasma membraneHope that helps!
Algae are small photosynthetic organisms found in aquatic ecosystems. Their cells produce a kind of oil. Scientists learned how to extract the oil to create fuel, which can be used in place of fossil fuels. Scientists think algae can produce 60 times more oil per acre than plants, like corn, that are commonly used to produce biofuel.
To produce algae oil, very large ponds were built for growing algae. However, scientists soon made two discoveries.
As the algae grew, it formed layers at the pond surface. These layers crowded and shaded one another.
Many insects and other consumers frequently entered the ponds.
Based on the two discoveries, what would likely be a problem for algae oil production?
A.
Crowding reduces access to food, so it makes algae less able to take in sugar and produce oil.
B.
Insects feed on algae, so all of the energy stored in algae oil is converted back into light energy.
C.
Consumers feed on algae, so the energy stored in algae oil is permanently lost from the environment.
D.
Shading reduces access to sunlight, so algae produce less sugar and are less able to store energy.
Answer:
C.
Consumers feed on algae, so the energy stored in algae oil is permanently lost from the environment
Plants release scents that attract pollinating insects to them. These adaptations primarily help the plant to _____.
A
find food
B
find water
C
protect themselves
D
reproduce
Answer:
I believe D, because pollen is used for reproduction.
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how is rising sea levels important?
Answer:
Rising sea levels greatly affect the environment negatively. Flooding or erosion of deltas are all disastrous. It is important to be aware of the effects of rising sea levels to find a way to prevent the continued rise.
Explanation:
Which is not included in the atmospheric conditions?
A. wind
B.Humidity
C. Potential energy
D. Temperature
Answer:
I believe the answer is C. Potenial energy
Explanation:
Earths magnetosphere is not part of it and that potential energy.
Explain the places occupied by grass, a rabbit, and a wolf in an energy pyramid.
Answer:
Grass is on the bottom of the energy pyramid because it needs the least amount of energy. A rabbit is in the primary consumers level, and a wolf is a secondary level consumer.
Explanation:
what order do they go in
Answer:
saying that the top box is number one, the order is 5, 2, 4, 3, 1
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What is the relationship between a gene and an operon.
Answer:
An operon is a segment of DNA containing a cluster of genes, which are all under the control of a single promoter and the same regulatory elements. The genes in an operon get transcribed together into a single mRNA strand and therefore undergo the same transcriptional regulation.
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