Answer:
true
Explanation:
Both the initial and final substances are composed of atoms because all matter is composed of atoms. According to the law of conservation of matter, matter is neither created nor destroyed, so we must have the same number and type of atoms after the chemical change as were present before the chemical change.
PLS HELP ASAP
This specialized cell controls gas exchange and water loss in a plant. It is found on the under-side of leaves. This structure is called a —
Question 15 options:
chlorophyll cell
chloroplast cell
stomata; guard cell
Answer:
Stomata
Explanation:
What type of tissue forms the woody portion of a sycamore tree
It is referred to as Xylem tissue.
This specialized cell controls gas exchange and water loss in a plant. It is found on the under-side of leaves. This structure is called a — Question 15 options: chlorophyll cell chloroplast cell stomata; guard cell
Answer:
stomata
Explanation:
i think the guard cells do control gas exchange and water loss..but these cells are found in the stomata...in the under side of the leaf
Answer:
Stomata
Explanation:
Stomata are tiny openings or pores in plant tissue that allow for gas exchange. Stomata are typically found in plant leaves but can also be found in some stems.
describe atmosphere in ur own words pls
Answer:
read below !
Explanation:
it's basically the layers from the earth's crust, all the way out to space. there are 5 layers in all, and they all protect earth from the things in space, and the suns rays. it keep gravity in, and things like that !!
i hope this is what you meant, and that it helped!! :)
16. What finally caused scientists to accept the plate tectonic theory?
A) Ocean floor evidence of sea floor spreading.
B) Fossil evidence of supercontinents like Pangaea.
C) Magnetic pole wandering alignment of repositioned plates.
D) Matching glacier scraping patterns on the coasts of different contents.
Answer:
A)Ocean floor evidence of sea floor spreading.
Explanation:
evidence pointing to the steps or process of seafloor spreading and effective plate motion This theory was accepted by many scientist because it depended on hard evidence and could describe most of the modern geological structures such as ocean basins,
What is the tectonic theory?
The theory of plate tectonics plates says that Earth's surface is made of rigid slabs of rock, or plates, that move to each other.
What is a tectonic plate?
They are huge slabs of rock that cover the earths mantle When a earthquake occurs that's because the tectonic plate is breaking that makes the ground shake During the earthquake and afterward, the plates keep on shaking until they are stuck again!
Hope this helps!
-Tobie the dog <3
The plate tectonic theory gave the concept of land and sea formation. "Ocean floor evidence of seafloor spreading" acted as evidence to support the plate theory. Thus, option A is correct.
What is plate tectonic theory?The plate tectonic theory states about the formation of the lithosphere by the movement of the plate tectonics located deep in the mantle and core layer of the earth. These plates show movement slides over each other to produce lands and drifts to form the oceans.
At a very early there was a supercontinent, Pangaea that slowly shows the formation of the current continent by the movement of the tectonic plates. These solid hard rocks of the earth layers allowed the formation of the various land formations.
The seafloor spreading is the best evidence that supports the tectonic plate theory that described the formation of the oceanic structures including the trenches and basins. The geological structures of the ocean floors supported the theory.
Therefore, option A. evidence of seafloor spreading supported the plate tectonic theory.
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l. A farming area developed a major locust problem. Swarms of locusts were destroying crops and the environment. A team of
scientists developed an infectious disease that would reduce the population of locusts What would be most important to find
out before producing and releasing the disease?
how a decreased number of locusts would affect other organisms
which species might eat the crops in the absence of locusts
how the disease can be used for other applications
O how quickly farmers would get to see the results
Answer: how a decreased number of locusts would affect other organisms.
Explanation:
When engaging in any action aimed at destroying large numbers of an organism as is the case here, there is always a need to check what impact it might have on the ecosystem at large.
This is why it is very important that the effect of a decreased number of locusts on other organisms is evaluated before such drastic action is taken. If it would lead to a situation where the ecosystem is destabilized, the consequences would be far reaching and very damaging.
How a decreased number of locusts would affect other organisms is the
most important to find out before producing the disease.
What is Population?This is referred to the number of organisms present in an area over a
specific period of time.
We were told that swarms of locusts destroyed the environment and
needed to be reduced through the creation of a disease. The effect the
decrease in locust has on other organisms has to be considered to ensure
the ecosystem is balanced and doesn't adversely affect others.
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The stage of the cell cycle that occupies most of the cell’s life is
Answer:
pretty sure its interphase
An example of a value is...
a) respect
b) freedom
c) equality
d) all of the above
Answer:
d) all of the above
Explanation:
The popsicle you are eating starts melting. Which of the following is correct regarding the situation?
The popsicle loses thermal energy and the particles speed up.
The popsicle gains thermal energy and the particles speed up.
The popsicle loses thermal energy and the particles slow down.
The popsicle is at thermal equilibrium therefore the heat transfer is equal.
Whats a zygote and what does it do someone pls help me-
Answer:
A zygoat is an egg that has been fertilized by the male gamite (sperm)
Explanation:
The zygoat develops into an embryo, which then becomes a baby
How did Wegener think that continents went together?
Explanation:
Fossils of similar organisms across widely disparate continents encouraged the revolutionary theory of continental drift. He called this movement continental drift. Pangaea. Wegener was convinced that all of Earth's continents were once part of an enormous, single landmass called Pangaea.
Answer:
Wegener suggested that perhaps the rotation of the Earth caused the continents to shift towards and apart from each other. (It doesn't.) Today, we know that the continents rest on massive slabs of rock called tectonic plates. The plates are always moving and interacting in a process called plate tectonics.
Explanation:my dignity
Hello Beautiful People!
I was wondering if anyone had made a study guide for the Cambell Biology textbook
When constructing an energy pyramid of the swamp ecosystem, which of these would be placed at the top of the pyramid?
Answer:
American alligator
Explanation:
Yellowstone is located above a blank the collapse of a crater after volcanic eruption
Answer:
Starting near the Oregon/Nevada/Idaho juncture 16 million years ago, a line of rhyolite magma centers—supervolcanoes—formed across what is now the Snake River Plain of southern Idaho. Yellowstone National Park today lies directly over the hotspot.
Those parts of the surrounding states of Montana, Idaho, and Wyoming that are closest to Yellowstone would be affected by pyroclastic flows, while other places in the United States would be impacted by falling ash (the amount of ash would decrease with distance from the eruption site).
Answer:
Caldera
Explanation:
Yellowstone is located above a caldera.
TRY IT Distinguish Elements Explain why there are more substances on Earth than are listed on the periodic table of elements.
Answer:
The periodic table of elements includes only elements.
Explanation:
All the materials on Earth are made up of the same elements, which can be found on the periodic table. These elements combine to form compounds, or mixtures such as water, a compound of hydrogen and oxygen, or air, which is a mixture of nitrogen, oxygen, carbon dioxide (a compound!) and many other gases, even water vapor. It is the combination of these elements in different ways that gives us so many different substances. Hope this helps!
Answer:
Explanation:
Elements are pure substances with only one type of atom.
The substances on Earth are created when two or more elements are combined.
Because elements can combine to form compounds, more substances can be created on Earth.
Where does the light-dependent stage of photosynthesis occur in the plant cell?(1 point)
cytoplasm
mitochondria
chlorophyll
cell membrane
Answer:
C- chlorophyll
Explanation:
Took the quick check xd :)
16.In which phase is the substance at 20 °C and 0.75 atm?
solid
liquid
vapor
all of the above
Answer:
solid
Explanation:
An energy pyramid shows the flow of energy and biomass from one trophic level to another. The amount of available energy that can be moved from the producer to the consumer is approximately
a. 90%
b. 25%
c. 100%
d. 10%
Answer:
b 25%
Explanation:
because it is............
Help!!!!!!!!!!!!!!!!!!!!!
The diagram below shows a microscopic view of the lower epidermis of a maple leaf. The cell indicated by the letter B is a guard cell. Guard cells are found on each side of the stomata.
Which of the following statements correctly describes how guard cells affect the physiological processes in a leaf?
A. Guard cells shrink to let in pollen for plant reproduction and swell to keep in oxygen.
B.Guard cells shrink to let in carbon dioxide for photosynthesis and swell to limit transpiration.
C. Guard cells shorten to let in light for photosynthesis and elongate to keep water from entering the cell.
D. Guard cells become rounder to let in oxygen for cellular respiration and flatten out to block the release of carbon dioxide.
Answer:
D is the answer of your quest.
Explanation:
D
The statement that correctly describes how guard cells affect the physiological processes in a leaf is as follows:
Guard cells shrink to let in carbon dioxide for photosynthesis and swell to limit transpiration.Thus, the correct option is B.
What is Photosynthesis?Photosynthesis may be defined as a type of process through which green plants and photosynthetic algae generally prepare their own food in the form of glucose with the help of carbon dioxide and water in the presence of sunlight.
Guard cells generally mediate the opening and closure of stomata. With the help of this activity, they regulate the rate of transpiration. Guard cells swell up and open the stomata for the exchange of gases when the plant has an excess of water and other useless gases. These types of cells are generally identified by their kidney-shaped appearance that surrounds the stomata.
Therefore, the correct option for this question is B.
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Which of the following fur colors are possible in females? Choose all that apply:
Black
Black and White
Black, Orange, and White
Orange
Orange and White
Answer:
It is all of them and I have PROOF
Explanation:
HERE IT IS YOU CHEETERS, isn't brainly the best?
In cats, the X-linked genes determine the fur color. The alleles for the fur color are present on the same locus but can have a different version, such as a cat can produce orange or black fur color.
The combinations of fur possible are:
Black
Black and White
Black, Orange, and White
Orange
Orange and White
The X-linked gene is responsible for the color or tortoiseshell of the cats.
The black color in the cats is caused due to the pheomelanin and the black color is caused due to eumelanin. The condition arises because of the inactivation of the X-chromosome.
For instance, the heterozygous patches of orange and black tortoiseshell result in the expression of different alleles coding for different fur colors.
Thus, in the female cats, the genotype is two X-chromosomes, which can result in all the possible tortoiseshells.
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The moon shown as a crescent on the right.
Which phase of the moon is shown?
full moon
first quarter
waning gibbous
waxing crescent
Answer:
Waxing Crescent Moon
Explanation:
New Moon Moon is almost directly between the sun and Earth (start of cycle). 2. Waxing Crescent Moon A bit of the sunlit side of the moon shows on the right side. hope that helps :)
What type of asexual reproduction is shown in the image below?
A)Binary Fission
B)Spores
C)Budding
D)Vegetative reproduction
It's budding or vegetative productioon it's one of them i think tell me if i am wrong
The type of asexual reproduction shown in the image below is Option C) Budding.
Budding is a type of asexual reproduction in which a new organism develops from an outgrowth or bud due to cell division at one particular site. For example, the small bulb-like projection coming out from the yeast cell is known as a bud. Since the reproduction is asexual, the newly created organism is a clone and excepting mutations is genetically identical to the parent organism. Organisms such as hydra use regenerative cells for reproduction in the process of budding.
In hydra, a bud develops as an outgrowth due to repeated cell division at one specific site. These buds develop into tiny individuals and, when fully mature, detach from the parent body and become new independent individuals.Internal budding or endodyogeny is a process of asexual reproduction, favored by parasites such as Toxoplasma gondii. It involves an unusual process in which two daughter cells are produced inside a mother cell, which is then consumed by the offspring before their separationBudding, in biology, a form of asexual reproduction in which a new individual develops from some generative anatomical point of the parent organism. In some species, buds may be produced from almost any point of the body, but in many cases budding is restricted to specialized areas. The initial protuberance of proliferating cytoplasm or cells, the bud, eventually develops into an organism duplicating the parent. The new individual may separate to exist independently, or the buds may remain attached, forming aggregates or colonies. Budding is characteristic of a few unicellular organisms (e.g., certain bacteria, yeasts, and protozoans). However, a number of metazoan animals (e.g., certain cnidarian species) regularly reproduce by budding.Learn more about Budding
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How did Wegener think that continents went together?
Answer: Basically he thought that due to the earth spinning it would cause the continents to break apart and squish together but now we know that wasnt the case because it is present time and there is more technology than back then.
I hope this helped! Have a good day :DDD
In order to measure the absorption spectrum of CoCl2, you need to dilute the stock solution to 0.32 M. What volume of the stock solution (0.8 M concentration) and water should be mixed to make a 10 mL solution of 0.32 M?
Explanation:
Volume of stock solution needed
= 10mL * (0.32M/0.8M)
= 10mL * (4/10) = 4mL.
Volume of water needed
= 10mL - Volume of stock solution
= 10mL - 4mL = 6mL.
The volume of water needed in this case will be equal to 6 ml.
What is the stock solution?To make a stock solution, weigh out the proper amount of a pure solid or measure out the proper amount of a pure liquid, put it in the right flask, and then dilute it to the desired volume. Depending on the intended concentration unit, many methods can be used to measure the reagent.
For instance, to make a solution with specified molarity, you weigh out the proper mass of the reagent, mix it with some solvent, and then add enough liquid to make the necessary volume. You measure out the right amount of solute and add enough solvent to get the right total volume to create a solution where the solute concentration is expressed as a volume percent.
A highly concentrated stock solution is frequently diluted to create solutions. The stock solution is moved to a new vessel and produced to a new volume at a known volume.
Here,
The volume of stock solution needed
= 10mL × (0.32M/0.8M)
= 10mL × (4/10) = 4mL.
The volume of water needed
= 10mL - Volume of stock solution
= 10mL - 4mL = 6mL.
Therefore the volume of water needed here is equal to 6 ml.
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Is there any difference in the time of sunrise during summer ans winter?
Answer:
yes winter time sunrise exactly time but winter time you can't see sun
What does the following list of characteristics and qualities have in common?
-Creativity
-Internal motivation
-Resilience
-Communication
-Strategic thinking
-Time and organizational management
A.
they are all traits common of successful entrepreneurs
B.
they are all traits that you must be born with and cannot learn
C.
they are all traits that you can only learn, not be born with
D.
they are all traits that you will develop when you become wealthy
Answer:
C. they are all traits that you can only learn, not be born with
Explanation:
You cant be born with anything. You have to learn with time, as you get older and have more experience.
The following traits are common because they are all traits that you can only learn, not be born with. So the correct option is C.
What are adaptable traits?Adaptable people have the possession of elastic-like energy along with a willingness to bend and break habits. They are able to challenge themselves when their circumstances change.
They are able to face problems, avoid any distractions, and they can also politely proceed forward. Adaptable people also have the ability to think ahead and focus consistently on their improvement.
They have a balance of thoughts like, what can be done better for personal improvement. Adaptable people always focus on both the risks and the rewards.
They do not see their mistakes or failure, but they try to see opportunities. Adaptable people also don’t have a fixed solution to use every time. They think of a wide variety of ideas and resources that they can take from. Because of this, they are also more likely to think of new things in real time
Therefore the correct option is C.
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What disease caused by a virus is vaccinated against with a new vaccine every autumn and winter?
Answer:
Influenza
Explanation:
Different strains appear every year, so the vaccine changes.
Influenza of flu is the viral infection for which a person should be vaccinated every autumn and winter. This is because the virus has been identified to have different strains.
What is Viral infection?Viruses are the unicellular organisms with genetic material either DNA or RNA which is surrounded by a protein coat. Many of the viruses are found to be pathogenic for humans.
Influenza virus is one of them. Influenza (flu) vaccines (also called as “flu shots”) are vaccines that protect against the influenza virus strains that are most common during the season. Generally, most of the flu vaccines are “flu shots” which are given with a needle in the arm, however there is a nasal spray flu vaccine as well.
Influenza (flu) is a contagious respiratory illness caused by influenza virus that infect the respiratory tract. People who are immunologically compromised or are in certain health condition are found to be more vulnerable to this virus.
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The plasma membrane of a bacteria cell _____.
Describe an example of how genetic factors influence the growth of dogs?
The example of how the genetic factors should impact the growth of dogs should be explained below.
What are genetic factors?In terms of disease, genetic factors should be considered important. Here all the risk should be transferred to one parent. The disease like diabetes, blood pressure, thyroid are based on the genetic factors.
Moreover, the dogs that belong from similar species should be because of the genetic variations. Also, this information should be found in the DNA segments which we called as the genes.
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How do the nutrients found in plants function in plant DNA? Is the function of plant DNA similar to human DNA?
Answer:
How do the nutrients found in plants function in plant DNA?
Plants take up essential elements from the soil through their roots and from the air (mainly consisting of nitrogen and oxygen) through their leaves. Nutrient uptake in the soil is achieved by cation exchange, wherein root hairs pump hydrogen ions (H+) into the soil through proton pumps.
Is the function of plant DNA similar to human DNA?
How much DNA do plants share with humans? Over 99%? ALL animals and plants share the same DNA which is basically a code of only 4 'letters' which code for the same amino acids from which all proteins are made.
Explanation:
Plants take up essential elements from the soil through their roots and from the air (mainly consisting of nitrogen and oxygen) through their leaves.
How much DNA do plants share with humans? Over 99%?ALL animals and plants share the same DNA which is basically a code of only 4 'letters' which code for the same amino acids from which all proteins are made.
Thus, these are the correct answer.
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