Differentiate between pathogens and vectors
Answer:
A pathogen is an agent that causes disease, such as a virus, bacterium, protozoan, or parasite. A vector is an organism, often an arthropod, that carries a pathogen to its host. So, for example, for malaria the pathogen is a protozoan called Plasmodium, and the.
Explanation:
Suzie Q wants to know the effect of different colors of light on the growth of plants. She believes that plants can survive best in white light. She buys 5 ferns of the same species, which are all approximately the same age and height. She places one in white light, one in blue light, one in green light, one in red light, and one in the closet. All of the ferns are planted in Miracle-Grow and given 20 mL of water once a day for 2 weeks. After the two weeks, Suzie observes the plants and makes measurements.
Answer:
This question is incomplete; the complete part is:
What is the independent variable in this experiment?
A) The plant species
B) The amount of water that each plant gets
C) The amount of time
D) The different types of light the plants were put under.
The answer is D. The different types of light the plants were put under.
Explanation:
In an experiment, the independent variable is the variable that is changed or manipulated by the experimenter in order to bring about a measurable response.
In this experiment, Suzie Q wants to know the effect of different colors of light on the growth of plants. The different types of light used are; white light, blue light, green light, red light. Therefore, the independent variable is the DIFFERENT TYPES OF LIGHT THE PLANTS WERE PLACED UNDER.
Earth began as a mixture of about 90% stony, olivine-rich material and about 10% iron metal, just like the composition of chondritic meteorites. Soon after its formation the interior of the Earth is thought to have become very hot. What was the result of this increase in heat? A) The iron melted and collected in the interior of Earth to become its core. B) The olivine remained behind, becoming the mantle and the melted iron became the core. C) Both the olivine and iron melted and as they later solidified, became the mantle and the core. D) The olivine became the crust and the iron, melting, defended into the earth to become the core.
Answer: D. The olivine became the crust and the Iron melting defended the earth to become the core.
Explanation:
Earth was formed after it has went through a molten stage that led to the heavy materials sure as Iron metal moving inward to form the core, and the light materials moves toward the surface to form the crust.
The heat for the melting came from meteorite impacts which is usually very hot, the moon's impact, and the decay of radioactive elements.
Geological activity on the earth is driven from this initial source of heat at the earth's formation until now.
What is meant by the term aging?
a. having entered school
b. becoming interactive
c. becoming older
d. having a personal identity
which gas is not abundant in earth's atmosphere?
a. oxygen
b. hydrogen
c. nitrogen
d. argon
Answer:
Its letter D
Explanation:
Answer:
argon is not adudabt in earth atmosphere
Describe how water is important to plants in terms of:
i) making food in plants
ii) the plant's shape
iii) hydrolysis and dehydration
Answer:
i) In terms of food production in plants, water is essential to plants as it is the evaporation of water that occurs in leaves that allows carbon dioxide to enter and to begin photosynthesis.
(ii) In terms of the shape of the plant, water is important to plants as the hydration of the cells of a plant allows the cell walls to retain their shape and thus give structure to the plant.
(iii) In terms of hydrolysis and dehydration, water is essential for plants because water is not a photosynthesis reactant or respiratory product.
Explanation:
i) Water is important in terms of making food in plants:
Water is required for the germination of seeds and as soon as growth starts water serves as a carrier in the distribution of mineral nutrients and plant food.
ii) Water is important in terms of the plant's shape:
Responsible for turgor pressure in cells (Like air in an inflated balloon, water is responsible for the fullness and firmness of plant tissue. Turgor is needed to maintain cell shape and ensure cell growth.)
iii) Water is important in terms of hydrolysis and dehydration:
During the process of photosynthesis, six molecules of carbon dioxide and six molecules of water react in the presence of sunlight to form one glucose molecule and six molecules of oxygen.
The role of water is to release oxygen (O) from the water molecule into the atmosphere in the form of oxygen gas.
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PLZZZZZZ I NEED HELP ASAP I ONLY GOT A LIL TIME PLZZ HELP :)
Answer:
B. The first generation will not have short plants. The short trait will return in the second generation.
Explanation:
If T is for Tall and t is for short, then the first generation doesn't have any short offspring. We can rule out answer choices A and D.
The second generation results in TT, Tt, Tt, tt.
TT is a tall Offspring.
Tt is a Tall Offspring, with a small t as a recessive trait.
tt is a short offspring because both the recessive traits (t) are together.
We can rule out option C.
That leaves us with the correct answer being B. The first generation will not have short offspring, but will pass it on to the second generation, which will have a short offspring (25% chance of having short offspring).
Describe hydrogen bonding
please help me! :)
Answer: hydrogen bonding is the association between a hydrogen atom which is somewhat positive because it is bonded to a small electronegative atom and an atom of O, N or F on another molecule
Explanation:
• All _______________ as we know it on Earth is dependent on __________________.
Answer:
scientific progress
individuals
Explanation:
due in like a few mins, help );
Answer:
A
Explanation:
Dont have time to explain
is this true or false, Surface waves result from a combination of up-and-down plus side-to-side motion.
Answer:
yaaa you knew that air is everywhere it moves
Can you see radio waves? How does their position on the electromagnetic spectrum demonstrate this?
Explanation:
no, we can not see radio waves. radio waves have the longest wavelength out of all the waves on the electromagnetic spectrum. we can only see visible light, which is towards the middle of the spectrum. the waves below or above visible light on the spectrum have wavelengths that are too long or short for the human eye to detect.
What is the consequence of global warming
Answer:
climate change, rising temperatures affecting wildfires, ocean warning etc.
Also PLEASE PLEASE PLEASE PLEASE give m brainiest i need it please I WOULD REALLY APPRECIATE IT ALOT
Explanation:
please help me lol . it’s easy but i’m rlly lazy :) tysm i’ll mark u blainlist ik it’s a lot of work !!
Answer:
this must be 8th grade work am I correct?
Explanation:
GUYS PLEASE 1. What is the smallest unit of a molecular compound with the properties of that compound?
Answer:
An atom is the smallest particle of an element while the molecule is the smallest particle of a compound.
Which subatomic particle determines an element's chemical properties?
Proteus
Electron
Center
Nucleon
Answer:
Electron
Explanation:
I got a 100 on my test trust me its Electron
The subatomic particles which determine an element's chemical properties are electrons. Electrons are present in the specific orbitals in an atom. Thus, the correct option is B.
What is an electron?An electron is a negatively charged subatomic particle. An electron can be either bound to an atom or in free state. An electron which is bound to an atom in an orbital is one of the three types of particles present within the atom. Other primary subatomic particles which are present in an atom include protons and neutrons. Together, electrons, protons and neutrons form the nucleus of an atom.
Electrons were discovered by J.J. Thomson in 1897. The mass of an electron is 9.109×10⁻³¹ kilograms and the charge is −1.602176634×10⁻¹⁹ C.
Therefore, the correct option is B.
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an elk eats grass. a grizzly bear eats the elk. this is an example is a ____.
A. pyramid of numbers
B. succession
C. food chain
D. food web
Answer: Should be food web if its not food chain
Explanation:
26. If there is a waxing gibbous moon on June 2, then when is the next waning gibbous phase?
Answer:
June 30th or July 31st
Explanation:
a waxing gibbous moon occurs every 29.531 days
What is the relationship between biomes and ecosystems???
Please answer soon
Explanation:
Biome and the ecosystem are the words that are sometimes applied interchangeably to explain a particular kind of environment.
The biome represents the geographical region that has the same kind of ecological atmosphere, climate and mostly consistent collection of the species and it is made of a large number of ecosystems.
An ecosystem represents a particular element of the biome and a species that nearly interact in it.
Thus the biome is the collection of various types of ecosystems.
The diagram shows the formation of a fault-block mountain. Arrows
outside of the block show the directions of force. Arrows inside the blocks
show the directions of movement. The blocks K and L move along a line
marked J. What does the line marked by the letter J represent?
A.)a river
B.)a rock layer
C.)a fault line
D.)the focus
“I have been trying to get the population of a fish pond to 80 for 3 hours”
This is a question my friend is asking, if someone could quickly answer by today that would be greatly appreciated :]
Answer:
[tex]well, \: i \: think \: your \: friends \: get \: rate \\ \: is \: \frac{80 \: p}{3 \: hrs} = 26.67 {p(hrs)}^{ - 1} [/tex]
The formula below represents the most common carbohydrate known as glucose. It is classified as a monosaccharide. Glucose is synthesized by chlorophyll in plants as they use carbon dioxide from the air and sunlight as an energy source during the process of photosynthesis.
C6H12O6
Which information can be determined from the chemical formula?
Answer:
The number of atoms of each element in a glucose molecule
The information that can be determined from the given formula is the number of atoms of each element in a glucose molecule. The correct option is D.
What is an element?Any substance that cannot be decomposed into simpler substances by ordinary chemical processes is referred to as a chemical element. Elements are the fundamental building blocks of all matter.
An element is a pure substance that cannot be broken down into simpler substances through physical or chemical means.
An element is composed of the same type of atoms. Metals, nonmetals, and metalloids are the three types of elements. The symbols for the elements are used to represent them.
Glucose is made up of three elements: carbon, hydrogen, and oxygen. 6 carbon atoms bonded together in a chain with oxygen and hydrogen atoms.
The formula for the glucose can be illustrated as [tex]C_6H_1_2O_6[/tex]
Thus, the correct option is D.
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Your question seems incomplete, the missing options are:
A. The structural arrangement of the atoms in a glucose molecule
B. The color of a glucose molecule
C. The size of a glucose molecule
D. The number of atoms of each element in a glucose molecule
Remember that a theory does not become a law because, by definition, a theory can always be altered whereas a law is fact and does not change.
Give an example of a theory in science:
Give an example of a scientific law:
Off the coast of the Pacific Northwest in the United States, the Pacific plate is being pushed underneath the North American plate in a subduction zone, caused by plate tectonics. As the rock from the Pacific plate is pushed under the North American plate, it is subjected to high temperatures and pressures. Which rock will be created from this process?
Answer:
Metamorphic rocks
Explanation:
When two oceanic plates collide, it occurs oceanic convergence. The thicker and older plate subduces under the other plate. As the thicker plate descends, it is heated and melted and its materials are incorporated into the mantle. The fast subduction originates magma. In the western Pacific crust is old and thick, and hence it submerges easier in the mantle.
Metamorphism provokes structural and mineralogic reordering in an original preexisting rock, under the influence of factors such as temperature and pressure, which are two of the most important and influencing ones.
This physic-chemical processes usually occur in deepness, many times related to plates movement and subduction processes. The sharped temperature rising might be caused by magma injection or by a deep placement or the original rock in a subduction zone.
According to the metamorphism processes, there are different kinds of metamorphic rocks. Metamorphic rocks that are the product of subduction event, belong to "regional metamorphism" which includes a huge area, and among this classification, "underground metamorphism" is associated with plates subduction, with a range temperature among 400-600ºC.
Give one word answer for the following. responsible for hereditary characteristics in living organisms.
Answer:
genes
Explanation:
Organisms inherit genetic material from their parents in the form of homologous chromosomes, containing a unique combination of DNA sequences that code for genes. The specific location of a DNA sequence within a chromosome is known as a locus.
Identify the type of chemical reaction.
H2CO3H2O + CO2
reversible
decomposition
synthesis
exchange
Answer:
Answer = Decomposition
Answer:
Decomposition
Explanation:
how can vaccinating individual people will help protect a whole population from malaria
Answer:
This is where Herd Immunity comes into play. Herd Immunity occurs when enough people become immune to a disease that it is unlikely to spread, even to those not vaccinated. Though you should get vaccinated if you can just to be safe.
Explanation:
Which of the following is NOT one of the functions of lipids?
A. forming the exoskeletons of insects
B. forming waxy leaf coverings
C. storing energy in fat cells
D. forming cell membranes
Answer:
A function that is not characteristic of lipids is forming the exoskeleton of insects.
Explanation:
The exoskeleton is a rigid external structure that provides support and protection to animals such as insects.
The structure of exoskeletons is formed, especially in insects, by chitin. Chitin in turn is made up of N-acetyl-glucosamine, which when polymerized forms the hard and resistant layer that forms the external cover of the insects. Exoskeletons do not contain lipids in their composition.
The other options are correct with respect to the function of the lipids:
B. Hydroxy fatty acid form the waxy layer that covers the leaves of the plants.
C. Lipids are a reserve energy source, stored in the fatty cells.
D. Phospholipids are the main component of cell membranes.
What would happen if the squirrel population were eliminated
What body systems work together keep you from burning your hand on a hot stove?
Answer:
The central nervous system and the peripheral nervous system.
Explanation:
The central nervous system is made up of the spinal cord and the brain, while the peripheral nervous system is everything else, right down to the pain sensors in your big toe. These two systems work together to basically control everything you do.
Hope this helps!