Answer:
Dmitri Ivanovsky
Explanation:
Dmitri Ivanovsky utilized one of these filters in 1892 to demonstrate that despite being filtered, sap from a diseased tobacco plant remained infectious to healthy tobacco plants. The filtered, infectious substance was dubbed a "virus" by Martinus Beijerinck, and this discovery is regarded as the origin of virology.
Through transpiration, water is released
back into the atmosphere through the
plant's?
Answer:
Yes!
Explanation:
The process in which, water is evaporated from plant parts ( leaves and sometimes stem ) into the atmosphere, is called transpiration.
hope it helps..
please mark brainliest
Answer: Yes
Explanation:
short debate of the ten percent plan and the Wade Davis Bill
Answer:
a
Explanation:
Which answer a b c or d.
Answer:
d
Explanation:
I think the answer is d but I'm not sure a can also be
The Wallace Line separates marsupials from what other kinds of species?
Answer:
The Wallace Line separates marsupials from placental mammals.
Predict what would happen to other organisms in an ecosystem in which all the decomposers went extinct?
Answer:
the other organism when they died with would not able to be decompose the they dead bodies would be left to rot . And then they food cycle would not be able to grow .In short food chain would disssolve
Explanation:
When organisms die, decomposers break down the dead bodies and the nitrogen is released and another type of bacteria breaks it down into gaseous nitrogen. Without decomposers and other types of bacteria, the nitrogen cycle would not be maintained. Plants would die off and the food chain would dissolve. As plant are primary producers
n this experiment the bag contains a hypertonic solution (sucrose), while the beaker only contains water. If you leave the bag inside of the beaker for approximately 45 minutes; the movement of water will occur from the ________ to the _________.
The water will move from beaker to the bag of sucrose due to concentration difference.
In which direction the water will move?The movement of water will occur from the beaker to the bag because the concentration of water is lower in the bag and higher in the beaker. So due to the process of diffusion, the water will move from the higher concentration region to lower concentration region.
So we can conclude that the water will move from beaker to the bag of sucrose due to concentration difference.
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Name and describe three measures of central tendency used to summarize data.
Which answer best explains the choice of materials used in this coffee
maker?
A. Plastic is used for the handle to slow the transfer of thermal
energy, because its electrons do not move freely.
B. Metal is used for the burner below the pot to speed the transfer of
thermal energy, because its electrons do not move freely.
c. Metal is used for the burner below the pot to slow the transfer of
thermal energy, because its electrons move freely.
D. Plastic is used for the handle to speed the transfer of thermal
energy, because its electrons do not move freely.
The best explains the choice of materials used in this coffee maker is metal is used for the burner below the pot to speed the transfer of thermal energy, because its electrons do not move freely.
What is used to make coffee?As an example, we can mention thermoses, scales, bottles and even special bottles. Regardless of what you prefer to use to prepare your pretão, the tip is to gradually build a real coffee kitchen. Thus, you find what you like most about the experience, which is the world of coffee.
In this case, we used Metal is used for the burner below the pot to speed the transfer of thermal energy, because its electrons do not move freely.
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Help Is it a b c or d
1. A 42,000 kg train car travelling at 10 m/s toward a stationary train car with a mass of 40,000 kg. After collision, the two sticked and moved together with the same speed. Solve for the final speed of the combined object after collision and identify their direction.
Given,
A 42,000 kg train car travelling at 10 m/s toward a stationary train car with a mass of 40,000 kg.
What is momentum?Momentum is a product of the mass of a particle and its velocity. Momentum is a vector quantity which means it has both magnitude and direction. Its formula = mass × velocity.
Solve for momentum:
M= (42,000kg)(40,000kg) / (10m/s)
M = 42,000 kilograms - 40,000 kilograms
M = 2,000kg
M = 2,000 kg ÷ 10m/s
= 200m/s
-Thus they collison at the same speed of 200m/s.
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Imagine a bird has a very specific adaptation. Another similar bird in the area doesn’t have the same adaptation. I’m just wondering, how does this work? Why don’t they have the same adaptation?
Answer:
evolution
Explanation:
adaptations are the result of evolution. Evolution is a change in a species over long periods of time.
How can local environmental changes have global effects?
a Organisms can move from one environment to another
b Air and water move from region to region
С. Increased carbon dioxide in one location can cause increased temperatures in other locations,
d. All of the above are true
Answer:
I think the answer is D
Explanation:
organisms can migrate to other areas and become an invasive species which can cause global problems. other things such as air pollution, water pollution, fires ect dont just remain in one area and all contribute to global warming which is a global issue.
In photosynthesis, carbon dioxide gas is reduced and combined to form glucose. This is an example of
Answer:
This is an example of: Anabolism
Which is a reservoir for nitrogen?
A. lightning B. biomass C. nitrogen gas D. ammonium E. nitrogen-fixing bacteria
IT'S NOT C
2. Write the equation for photosynthesis here:
(d) State the end products of photosynthesis:
Answer:
The chemical equation for photosynthesis is 6CO2+6H2O→C6H12O6+6O2
The products of photosynthesis are glucose and oxygen.
hope this answer helps you.
6. Which of the following processes puts excess carbon in the environment? (1 point)
a. Marine respiration
b. Burning fossil fuels
c. Terrestrial photosynthesis
d. Nitrification
This is how a SIM medium looks after 24 hours and the addition of indole reagent. Is the unknown bacterium positive or negative for H2S production, indole production, and motility
In the test tube pink colour shows that it is indole positive and H2S positive bacteria and it is non motile.
What is the indole positive?Within seconds of introducing the reagent, a pink color appears in the reagent layer on top of the agar deep, indicating a positive indole test. The reagent layer will stay yellow or slightly hazy if the culture is indole negative.
When an organism converts sulfur to hydrogen sulfide, the hydrogen sulfide reacts with iron to generate ferric sulfide, a black precipitate. The presence of blackening in the medium suggests a reduction in sulfur, which is a +ve sign.
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Explain whether releasing a tropical fish, like a clownfish, into Artic waters would be likely to result in an invasive population of clownfish.
HELP ASAP!! The explanation can be short and sweet, but reasonable. Thanks
what are the three reasons that people kill sharks?
Fear
Food
Hunting
Showing off to others
Profit
Prenatal development begins with ______ and ends with ______. Multiple choice question. organogenesis; ovulation fertilization; birth ovulation; fertilization birth; death
how do the x and y chromosomes differ
Answer:
see the attached file! (≡^∇^≡)
would an Egyptian pyramid that is 4500 years old be considered a fossil?
An Egyptian pyramid that is 4500 years old will be considered as a fossil in this scenario.
What is a Fossil?This is defined as trace of an animal or plant of a past geologic age that has been preserved in Earth's crust.
Since it has been discovered that the egyptian pyramid contains thousands of marine fossils then it can be generally referred to as a fossil.
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Typical gram-negative bacteria are more impervious to the action of antimicrobial chemicals than are gram-positives because gram-negatives have a(n)
As gram-negative bacteria have an extra layer of cell wall therefore it is less sensitive towards antimicrobial chemicals than gram-positive bacteria.
Why gram-positives are less impervious to the action of antimicrobial chemicals?Gram-positive bacterial cell wall is made up of only the peptidoglycan layer and it does not have an extra barrier that protects it from some antimicrobial chemicals.
Gram-negative bacteria have two layers of cell wall peptidoglycan layer and a lipopolysaccharide layer.
Thus, gram-negative bacteria have an extra layer of cell wall.
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A student is investigating how reaction rate changes over a range of enzyme concentrations. The student uses excess reactants
Which of the following graphs best represents the relationship between enzyme concentration and reaction rate?
why farmers are manuring at the roots of the plant
Answer:healthy plants
Explanation:the farmers use raw manure on their fields because it is an excellent source of nitrogen (N), phosphorus (P) and potassium (K), which are all nutrients necessary for plants to grow and thrive.
Answer:
The reason why farmers put manure at the roots of the plants is because that is how most of the nutrition is taking up into the plant. Most of the minerals in the earth are absorbed into the plant for usage by the roots which is why the manure would be placed where the roots are. However, it's important to not put too much because that can actually cause the roots to get burned because there is too much minerals so it's important to keep a balance.
Contrast the three types of heat transfer
Answer:
There are three modes of heat transfer.
1. Conduction
2. Convection
3. Radiation
1. Conduction: Heat transfer through the process of conduction occurs in substances which are in direct contact with each other. It generally takes place in solids.
For example: When frying vegetables in a pan. Heat transfer takes place from flame to the pan and then to the vegetables.
2. Convection: In this process, heat is transferred in the liquid and gases from a region of higher temperature to a region of lower temperature. Convection heat transfer occurs partly due to the actual movement of molecules or due to the mass transfer.
For example: Heating of milk in a pan.
3. Radiation : It is the process in which heat is transferred from one body to another body without involving the molecules of the medium. Radiation heat transfer does not depend on the medium.
For example: In a microwave, the substances are heated directly without any heating medium.
What does it mean when you see flashing lights in your eyes?.
why are stars not distributed uniformly throughout the universe
Which processes involve the production of identical daughter cells
Answer:
mitosis
Explanation:
mitosis is a cellular division that yields two daughter cells that are identical to parent cell.
Suggest how the pH of plaque ( of teeth) could be measured safely.
Which one of the following human activities is the greatest threat to biodiversity?
A. Habitat destruction
B. Climate change
C. Introduced species
D. Pollution
E. Overharvesting
Answer:
Overharvesting
Explanation:
Too much harvest and planting causes the soil to wear down and be less useful.
Answer:
B) Climate Change
Explanation:
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