experiment to show transpiration takes place in plants
Explanation:
experiment to demonstrate transpiration phenomenon with the Bell jar method
Imagine you are introducing the Lac operon and the Trp operon to students who have never learned about it before.
Complete the table to compare the similarities and differences between the two operons.
Type of operon:
Trp operon is a repressible operon
Lac operon is an inducible operon.
Environment:
Trp operon is deactivated when tryptophan is present in the environment.
Lac operon is activated when lactose is present in the environment.
Repressor protein:
Trp operon is activated by tryptophan through bonding to the repressor protein
Lac operon is inactivated by lactose through binding to the repressor protein.
Transcription:
Trp operon -Tryptophan binds to the repressor protein, activating it, thus preventing active transcription of Trp operon.
Lac operon - Lactose binds to the repressor protein, deactivating it, thus allowing for active transcription of Lac operon.
An operon is a unit of DNA found in prokaryotes, containing a cluster of genes under the control of a single promoter and which performs a specific function. Examples of operons are the tryptophan (Trp) and lactose (Lac) operons.
Trp operon is responsible for tryptophan synthesis while Lac operon is responsible for lactose transportation and metabolism.
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Answer:
answer below
Explanation:
straight from edmentum
Cell theory states that all living things contain one or more cells. Why do you think cell theory meets the definition of
a scientific theory? Do you think it should be a scientific law? Explain your response.
Yes. Scientific laws are established statements, based on repeated experiments or observation of a particular scenario or natural events while a science theory are events or explanation of the natural world that can be repeatedly tested and verified using scientific method. That is, for it to be a Scientific Theory we must be able to test and verify it using scientific methods and for it to be a Scientific Law it must have been tested and verified repeatedly using scientific methods. Cell theory is a tested and verified experiment
Why mosquitoes bite us only at night
Answer:
Mosquitoes are most active at night because sun exposure can dehydrate them and could possibly lead to death.
Explanation:
SOMEONE PLEASE HELP ME :(
Neurotransmitters can be blocked which
disrupts the ____ impulse from traveling
through the target neuron.
A. synthetic
B. electrical
C. somatic
D. chemical
Darwin noticed that birds that were good at finding scarce food in the winter had a better chance of surviving and producing offspring. What did he call this struggle for existence?
Answer:
Natural selection.
Explanation:
write a lab report on how materials move across a semipermeable membrane
Name two potential pollinations???
Explanation:
male anther of a flower to the female stigma of a flower. This helps to bring about fertilization of the ovules in the flower by the male gametes from the pollen grains.
Insect pollinators include bees, (honey bees, solitary species, bumblebees); pollen wasps (Masarinae); ants; flies including bee flies, hoverflies and mosquitoes; lepidopterans, both butterflies and moths; and flower beetles. Vertebrates, mainly bats and birds, but also some non-bat mammals (monkeys, lemurs, possums, rodents) and some lizards pollinate certain plants. Among the pollinating birds are hummingbirds, honeyeaters and sunbirds with long beaks; they pollinate a number of deep-throated flowers. Humans may also carry out artificial pollination.
A pollinator is different from a pollenizer, a plant that is a source of pollen for the pollination process.
Which best describes the scientist who contributed to our current body of knowledge?
Answer: People of all races
Explanation: People all over the word have done experiments and made observations that have contributed to what we now know
APEX :)
Please help! 100 points!
What are some ways that the nitrogen cycle overlaps with or influences the oxygen and carbon cycles?
Are any of these interactions between the cycles positive?
Are any negative?
What about when the nitrogen cycle is thrown off balance by the Haber-Bosch process and others like it?
How can that influence the oxygen and carbon cycles?
Are there other cycles involved that have not been mentioned in this question?
What does this discussion suggest about the nature of the Earth as one large system?
Answer:
1.Nitrification happens when soil organisms change over ammonium into nitrate. Much of the cover between the carbon cycle and the nitrogen cycle happens within the soil, in forms conducted by soil organisms. Organisms break down supplements, construct modern compounds for their possess development, and inevitably pass on.
The second question im not sure sorry- the positive and negative one ;(
3. Many human activities have a significant impact on the nitrogen cycle. Burning fossil fuels, application of nitrogen-based fertilizers, and other activities can dramatically increase the amount of biologically available nitrogen in an ecosystem. As nitrogen makes up 78% of the atmosphere, there is no shortage of it – it just isn't in a form plants and animals can use.
4. Carbon makes its way through living things as carbon-based compounds, like vitality particles, fats and proteins, in the long run cycling its way back into the environment. Nitrogen is basically found within the air as well and enters the environments as supplements for plants. Water, nitrogen and carbon cycles. Carbon moves from the air and back by means of creatures and plants. Nitrogen moves from the environment and back by means of living beings. Water moves on, over, or underneath the surface of the Soil.
5. Carbon cycle, Nitrogen cycle, Nutrient cycle, Oxygen cycle, Phosphorus cycle, Sulfur cycle, Rock cycle, Water cycle.
6. Wind, water, and ice disintegrate and shape the arrive. Volcanic movement and seismic tremors change the scene in a sensational and frequently savage way. And on a much longer timescale, the development of earth's plates gradually reconfigures seas and landmasses. Each one of these forms plays a part within the Cold and Antarctica.
People affect the physical environment in numerous ways: overpopulation, contamination, burning fossil powers, and deforestation. Changes like these have activated climate alter, soil disintegration, destitute discuss quality, and undrinkable water. Earth's surface is the as it were territory accessible to the human race. Understanding the forms by which that environment has been made and persistently changed is critical to decide the causes of natural degradation.
Please help! 100 points! Only answer if you know :)
What are some ways that the nitrogen cycle overlaps with or influences the oxygen and carbon cycles?
Are any of these interactions between the cycles positive?
Are any negative?
What about when the nitrogen cycle is thrown off balance by the Haber-Bosch process and others like it?
How can that influence the oxygen and carbon cycles?
Are there other cycles involved that have not been mentioned in this question?
What does this discussion suggest about the nature of the Earth as one large system?
Answer:
1. Nitrification occurs when soil microbes convert ammonium into nitrate. Much of the overlap between the carbon cycle and the nitrogen cycle occurs in the soil, in processes conducted by soil microbes. Microbes break down nutrients, build new compounds for their own growth, and eventually die.
The second question im not sure sorry- the positive and negative one ;(
3. Many human activities have a significant impact on the nitrogen cycle. Burning fossil fuels, application of nitrogen-based fertilizers, and other activities can dramatically increase the amount of biologically available nitrogen in an ecosystem. As nitrogen makes up 78% of the atmosphere, there is no shortage of it – it just isn't in a form plants and animals can use.
4. Carbon makes its way through living things as carbon-based compounds, like energy molecules, fats and proteins, eventually cycling its way back into the atmosphere. Nitrogen is mainly found in the atmosphere as well and enters the ecosystems as nutrients for plants. Water, nitrogen and carbon cycles. Carbon moves from the atmosphere and back via animals and plants. Nitrogen moves from the atmosphere and back via organisms. Water moves on, above, or below the surface of the Earth.
5. Carbon cycle, Nitrogen cycle, Nutrient cycle, Oxygen cycle, Phosphorus cycle, Sulfur cycle, Rock cycle, Water cycle.
6. Wind, water, and ice erode and shape the land. Volcanic activity and earthquakes alter the landscape in a dramatic and often violent manner. And on a much longer timescale, the movement of earth's plates slowly reconfigures oceans and continents. Each one of these processes plays a role in the Arctic and Antarctica.
Humans impact the physical environment in many ways: overpopulation, pollution, burning fossil fuels, and deforestation. Changes like these have triggered climate change, soil erosion, poor air quality, and undrinkable water. Earth's surface is the only habitat available to the human race. Understanding the processes by which that habitat has been created and continually altered is important to determine the causes of environmental degradation.
If you drop a bouncing ball from a height of 40
centimeters, explain why it can only bounce back up
to a height of less than 40 centimeters.
Answer:
because a lot of the energy has been lost to its surroundings
Explanation:
Question 11 (1 point)
Which of the following is not the name of a taxon?
Order
O Family
O Class
O Association
Express a
mass of 0.014 mg in grams
Answer:
14 mg
Explanation:
1 g = 10³ mg = 1000 mg
0.014 g * 1000 mg/1g = 14 mg
0.014mg in grams would be equal to 1.4 × 10^-5 gram.
What are unit conversions?There are a few items that we track in our daily activities, including the following:
Speed \sTemperature \sArea \sVolume \sMass
Units of measure are needed in order to measure these values. Sometimes the units of measurement employed may not correspond to the standards required for a particular process or application, as well as the measuring choice and convenience.
It's crucial to convert these units in a way that makes sense and can be used effectively. Let's use the example of someone who is only familiar with the metric system to better grasp the statement.
The person finds it difficult to determine the height of a 25-foot tree. The individual will comprehend the height of the tree better if they convert 25 feet to meters.
Therefore, the conversation of 0.014 mg in grams would be by 0.014/1000 = 1.4 × 10^-5 gram.
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Give two causes of Malnutrition
HELP :)
Answer:
Two causes of Malnutrition are not eating enough food and or not drinking enough water.
Explanation:
A student run10m/s what does it means
Answer:
it means that student is running 8meters per second
Answer:
it means that the student runs 10 miles per second
Explanation:
Your sense of touch depends upon:
direct contact
heat
chemical reactions
pain
Answer:
The answer is direct contact.
Explanation:
Sense of touch have to depends on direct contact.
A goal of using animal models is to explain the molecular detail of specific behaviors encoded in the human brain. How would you compare the developmental biology experiments on memory and learning using the fruit fly, drosophila melanogaster, as evidence about the evolution of a human behavior?
Answer:
It is possible to compare the expression of homologous genes in the brain of D. melanoganster and humans, because the expression levels of conserved genes may be associated with the evolution of cognitive features such as complex learning and memory.
Explanation:
Model organisms can be used to understand the patterns and processes that affect human evolution. Drosophila melanogaster is a model organism that has been used to study expression patterns of conserved genes in the course of evolution. This model organism has also been used to develop genetic mutant lines in order to examine the role of genes evolutionarily conserved in animals, including those involved in neurocognitive development.
In genetic research, an experiment as the above described is framed in a research field named 'Behavioral Genetics', which is a discipline that studies how evolutionarily conserved gene networks may be associated with neurocognitive tasks during brain evolution.
Short hair (S) is dominant to long hair (s) in cats. What would be the genotype(s) of a cat with long hair
A SS or Ss
B ss
C Ss
D SS
Answer:
A,C,D
Explanation:
Pretty much just A
Enzyme activity within metabolic pathways is regulated by
O food consumption
O activators and inhibitors
O oxidation
O neurons
Answer:
activators and inhibitors
Explanation:
what causes ocean tides to reach higher up on a shore at certain of day than at others?
Answer:
Most tides are semidiurnal, which means they take place twice a day. For example, when an area covered by the ocean faces the moon, the moon's gravitational force on the water causes a high high tide. As the Earth rotates, that area moves away from the moon's influence and the tide ebbs.
Explanation:
Answer:
D. The moons gravity and Earth’s rotation
Explanation:
Fill in the blanks with the correct word or phrase.
The process of change in a population over time is called
.
The process by which organisms that are better adapted to the environment survive and reproduce is called
.
Answer:
evolution
Natural selection
Explanation:
Answer:
The first blank is evolution and the second black is natural selection.
Explanation:
The diagram below shows a magnified view of a cross section of a plant root tip. Four parts of the root and the process that each performs are shown. Which process is directly responsible for root growth in plants?
a. storage
b. absorption
c. transportation
d. cell division
Answer:part c transportation
Explanation:
The process directly responsible for root growth in plants is cell division. So, the correct option is D.
What is Cell division?The process by which a cell divides into two or more daughter cells is called cell division. In relation to the above question, cell division is the mechanism due to which plant roots grow.
The meristematic region, which is in charge of cell division, is designated as part D in a cross-section illustration of the root tip of a plant. The meristem of the root is a unique region where cells continuously divide and differentiate into different tissues, helping the root to expand and mature.
Many tissues of the root, including the epidermis, cortex, and vascular tissue, are composed of distinct types of cells that differentiate when they divide into specialized cell types.
So, the correct option is D.
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Club mosses are closely related to:
A. ferns
B. mosses
C. liverworts
Answer:
A. FERNS
Explanation:
Does a corpse flowers smell meet the definition of an adaptations
JUST PICK A BODY OF WATER THAT'S ALL I ASK I CAN"T THINK OF ANY I'M PANICKING. ANY LAKE. OR RIVER. OR BAY. WHATEVER ALL YOU GOTTA DO IS PICK ONE.
Answer:
Gulf of Mexico, Lake Tahoe, Mississippi River, etc. (you can just search it up btw.)
Explanation:
HELP 50 POINTSSSSSSSSSS
Which graph best represents the relationship between sustainability and biodiversity?
Answer:
c
Explanation:
hope this helped
Which products are made from nonrenewable resources? Check all that apply.
a. a soft-drink can
b. lipstick
c. a cotton T-shirt
d. motor oil
e. a wooden table
Answer:
The answer is A, B, and D
Explanation:
Products that are made from non-renewable resources are a can of soda, lipstick and motor oil.
What are renewable and non-renewable resources?Renewable natural resources are those that are renewed in a short period of time compared to the human lifetime. Some examples of renewable resources are:
watersoilorganic matterbiofuelsand wind.Non-renewables are those that are not renewed in a short period of time compared to the human lifespan.
Whit this information, we can conclude that products that are made from non-renewable resources are a can of soda, lipstick and motor oil.
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which statemnet is true about all adaptations
Here is Your Answer- Answered By J.A - Aka. Joshua Amachee
The Question Here: MI Of the question: What is true about all adaptions?
My answer is here:
they result from having different alleles
Explanation:
Why and How? - They relate to evolution
Answer:
Explanation:
The three basic types of adaptations, based on how the genetic changes are expressed, are structural, physiological and behavioral adaptations. Most organisms have combinations of all these types.
Explain why food webs are more stable than food chains
Answer:
Food webs are more stable than food chains because i one species died or became extinct there would be other options for the other organisms to all back on.
Example:
The mouse became extinct, the snake now eats bunnies because they are their other prey.