Answer:
The onion cell has a cell wall, unlike the human skin cell.
Explanation:
Only plant cells have cell walls.
Three students test the effect of fertilizer on bean plant
growth. Each student conducts one trial. They plant 10
bean seeds in each of three large pots of soil with different
amounts of fertilizer. After two weeks, they measure the
heights of the plants in each pot. Then they find the
average height for each amount of fertilizer. The table
summarizes the results of the experiment.
Effect of Fertilizer on Height of Bean Plants
Amount of fertilizer Average height after 2 weeks (cm)
Trial 1
Trial 2
Trial 3
None
18.9
21.5
40.2
A little
19.5
32.7
39.7
A lot
34.3
33.2
16.5
Which statement describes a pattern shown in the data?
Answer:
i think it b if it not i can look in too it more if you need
Explanation:
The the trend in the data for trial 3 shows that plants grow taller if given more fertilizer, the correct option is b.
What is fertilizer?A fertilizer, also known as a fertilizer, is any natural or synthetic material that is applied to soil or plant tissues to supply plant nutrients.
Fertilizers can be distinguished from liming materials or other non-nutritional soil amendments. There are numerous fertilizer sources, both natural and man-made.
Fertilizers are plant food. Fertilizers replenish the essential minerals lost by crops in the soil. Crop yields and agricultural productivity would be significantly reduced if fertilizers were not used.
It provides nutrients to the plants throughout the growing season. The base fertilizer, along with presowing fertilization and top dressing, forms the fertilizer system used in crop rotation.
The data from Trial 3 show that plants grow taller when given more fertilizer.
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All animals, with the exception of sponges have which of the following characteristics?
heterotrophy, multi-cellularity, haploidy, tissue, blastula formation, mobility, sexual reproduction, no cell wall
heterotrophy, multi-cellularity, diploidy, tissue, blastula formation, mobility, sexual reproduction, cell wall
heterotrophy, multi-cellularity, diploidy, tissue, blastula formation, mobility, sexual reproduction, no cell wall
autotrophy, multi-cellularity, diploidy, tissue, blastula formation, mobility, sexual reproduction, no cell wall
Answer:
C
Explanation:
Animals do not have a cell wall so that eliminates B. They also cannot be an autotroph, the only organisms that can be autotrophy are algae and plants, so this eliminates D. I hope this helps:)
Animals, with the exception of sponges have heterotrophy, multi-cellularity, diploidy, tissue, blastula formation, mobility, sexual reproduction, no cell wall. Thus, option C is correct.
what are the characteristics of sponges?
Sponges are sessile most primitive filter-feeders, it has cell based organization. It draw water through their pores and filter cells to gather food.
The skeleton system of sponges arise from collagen with reinforcing spicules. It is made up of calcium or silicon compounds.
The body of sponges are either radially symmetrical or asymmetrical.
Sponges have no tissue system, cardiovascular, nervous systems, muscles or sense organs.
Some species of sponges produce sexually, some produce one type of gamete, while species produce both.
Sponges release sperm into the water which are captured by other sponges as the food.
Sponges also do asexual reproduction such as budding.
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PLEASE HELP ME!! ASAP Why is it so difficult to tell the impact of pollution in the deep ocean region?
Explanation:
THE OCEANS ARE so vast and deep that until fairly recently, it was widely assumed that no matter how much trash and chemicals humans dumped into them, the effects would be negligible.
hope it helped
All forms of pollution eventually taint water. Air pollution contaminates lakes and oceans. An underground stream, a river, and ultimately the ocean could all become contaminated due to land contamination.
What is the impact of pollution in the deep ocean region?The consequences of the toxins aren't usually obvious or simple to spot. Only in the cases of marine debris, man-made noise, and acidification by atmospheric CO2 can cause and effect be clearly shown.
The unfavorable climate makes it difficult to study the ocean floor. Instruments like sonar can be used to pollution study the seafloor in an indirect manner.
In contrast to mapping the land, the sea floor can't be directly measured from space using radar, since the water there absorbs the radio signals.
Therefore, With the aid of unique vehicles, it may be directly researched. To the ocean floor, certain vehicles transport scientists and their equipment.
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Which of the following describes what might happen if the septum in the heart ruptured? (2 points)
A. Blood from outside the heart would leak into the heart.
B. Blood entering the atria would leak into the ventricles.
C. Oxygenated and deoxygenated blood would mix in the heart.
D. Incoming and outgoing blood would mix, causing turbulence
option c is the answer
Explanation:
septum is present between the two ventricles and separates the oxygenated and deoxygenated blood. hence if it gets ruptured then the two blood will mix up. thanks
design an experiment to test substances X, Y, and Z to determine which one is a catalyst for the reaction.
Answer:
A+B C. Only one of the unknown substances is a catalyst, and the others are nonreactive with A, B, or C. When 10 mL of A is added to 10 mL of B the reaction takes twenty seconds. Bubbles form when the product C is created. The student prepares three test tubes, each containing both reactants A and B. She adds unknowns X, Y, and Z to test tubes 1, 2, and 3, respectively.
Answer:
Prepare three test tubes containing reactant A
Prepare three test tubes containing reactant B
Add one test tube of reactant B and one unknown to one test tube of reactant A. Repeat for other two unknowns
Time the reaction until the bubbling stops
The unknown that causes the reaction to occur the quickest is the catalyst
Explanation:
Did the test
Are biogeochemical cycles transported by water??
Answer: Biogeochemical cycles are not transported by water.
Explanation: Biogeochemical cycles are not transported by water cycle because itself is a biogeochemical cycle.It is the key point of the cycling of the other biogeochemical cycles,this means it is part of the three important biogeochemical cycles.
Scientific explanations are the result of scientific reasoning. Whenever scientific reasoning is used,
takes place.
Answer:
The options are
A.) an active consideration of alternative explanations.
B.) a process to totally disprove alternative explanations.
C.) a process to prove a given explanation with logic.
D.) the collection of completely accurate observations.
The answer is D.) the collection of completely accurate observations.
Scientific reasoning results in a thoughtful process and consideration of several informations. This results in Scientific explanation as to the occurrence of such an event.
It is therefore imperative that whenever scientific reasoning is used there is the collection of completely accurate observations.
What are the applications of Bioanalytical Service?
Explanation:
hope its wht u r searching for
Which is the immediate effect of being infected by last season's flu virus? A. get the last season's flu virus B. receive this season's flu vaccine C. Immune to last season's flu virus D. Produce antibodies that attach to this season's flu virus.
Answer:
probley
Explanation:
A. get the last season's flu virus
or
C. Immune to last season's flu virus
why is the dominant allele called dominant.
A. There is always at least one dominant allele
b. there are always more dominant alleles in a genotype
c. it dominates the phenotype
d. the dominant alleles are the only kind that determine phenotype.
Answer:
It dominates the phenotype
Explanation:
Which change of state is shown in the model? condensation, boiling, sublimation or freezing
Answer:
Freezing.
Explanation:
Answer:
condensation
Explanation:
Edge2021
homeo- comes from a greek word means still the suffix stasis comes from "stoppage" or "standstill" how does this relate to homeostasis
Answer:
The greek word homeo- relates back to homeostasis, as homeostasis is the body keeping it from doing something extreme. Homeostasis tries to maintain your body instead of letting systems wander all over the place, so it is "stopping" it from doing anything irrational.
Explanation:
How are so few producers able to support so many primary consumers?
Answer:
Because primary producers get 100% energy consumption straight from the sun.
Explanation:
We use the energy pyramid to help us out:
.01% - A pex Predators
0.1% - Tertiary Consumers
1% - Secondary Consumers
10% - Primary Consumers
100% - Primary Producers
Because Primary Producers get 100% of the energy of the sun, they can support so many primary consumers, who only get 10% of the energy when they consume primary producers.
Carefully study the diagram below and answer the questions that follow. a. Label the structures A to F b. Name two structures that are concerned with temperature regulation in Man. c. State two functions of D d. State two functions of G. e. Where in Man is structure G thickest? f. What labelled part is involved in excretion by the skin?
Answer:
a. A - Free Nerve ending
B- Hair erector muscle
C- Capillary
D- Sebaceous Gland
E- Sweat Gand
F- Epidermis
b. Two structures that are concerned with temperature regulation in Man are sweat glands and blood vessels. Sweat glands of the dermis, secrets sweat which then evaporate on the skin surface and maintain body temperature. constricted blood vessels retain the heat while dilated vessels allows heat loss.
c. Sebaceous gland is an exocrine gland that secret sebum having following functions:
protect skin from bacteria and microorganisms.reduces water loss from skin surface.d. G refers to stratum corneum, its functions are:
Forms a barrier to protect underlying tissues from damage.It contains keratin protein which keeps the skin hydrated.e. Stratum corneum is thickest in palms and soles in man.
f. Sweat glands are involved in the excretion by skin as they secret a fluid waste sweat and release it at skin surface.
question:
Carefully study the diagram below and answer the questions that follow. a. Label the structures A to F b. Name two structures that are concerned with temperature regulation in Man. c. State two functions of D d. State two functions of G. e. Where in Man is structure G thickest? f. What labelled part is involved in excretion by the skin?
Answer:
a. A - Free Nerve ending
B- Hair erector muscle
C- Capillary
D- Sebaceous Gland
E- Sweat Gand
F- Epidermis
b. Two structures that are concerned with temperature regulation in Man are sweat glands and blood vessels. Sweat glands of the dermis, secrets sweat which then evaporate on the skin surface and maintain body temperature. constricted blood vessels retain the heat while dilated vessels allows heat loss.
c. Sebaceous gland is an exocrine gland that secret sebum having following functions:
protect skin from bacteria and microorganisms.
reduces water loss from skin surface.
d. G refers to stratum corneum, its functions are:
Forms a barrier to protect underlying tissues from damage.
It contains keratin protein which keeps the skin hydrated.
e. Stratum corneum is thickest in palms and soles in man.
f. Sweat glands are involved in the excretion by skin as they secret a fluid waste sweat and release it at skin surface.
Activity Many farmers and gardeners compost their plant and animal waste. The living material naturally decays in compost bins, forming a dirt-like substance that’s rich in nutrients. The next season, farmers use this substance as a natural fertilizer for their crops. A biology student has grown tomato plants for several years. Until now, he used an artificial fertilizer formulated for tomato plants. This fertilizer caused his plants to grow faster and taller than they grew in unfertilized soil. The student wants to know whether using natural compost will cause his tomato plants to grow faster and taller than his artificial fertilizer. Answer the following questions to plan an investigation using the steps of the scientific method and help the student find the answer to his question. Part A What are the student’s observations and inferences before he starts his investigation?
Answer:
OFFICIAL ANSWER (do not copy verbatim):
The student has observed that artificial fertilizer makes his plants grow faster and taller than plain soil. He knows that compost is a natural fertilizer. So, he infers that compost will make his plants grow at a faster rate than they grow in plain soil.
Explanation:
Which type of geologic event has to occur to create an angular unconformity
Answer:
folding or tilting of rock layer
hope this answer correct (^^)
The type of geologic event that has to occur to create an angular unconformity is the folding or tilting of rock layers. The correct option is 3.
What is an angular unconformity?An erosional surface that truncates older, tilted sedimentary layers and is covered by younger layers that are oriented parallel to the unconformity is known as an angular unconformity.
Angular unconformity typically occurs when sedimentary rock layers are deposited on top of one another and inclined, with the upper layer being younger than the lower layer. The unconformity might be thought of as the time when there were no preserved sediments in the area.
Tilting of rocks can take many different forms, including forcing the rock upward or folding sedimentary rock.
Therefore, the correct option is 3.) folding or tilting of rock layers.
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The question is incomplete. Your most probably complete question is given below:
1.)The tilting of rocks or folding or uplifting of the rock.
2.) deposition of new sediments
3.) folding of tilting of rock layers
4.) by the setting of metamorphic rocks.
When an animal consumes
food what percent of the
food's energy is used for
growth?
A. 5%
B.30%
C.40%
D. 10%
Answer: The Answer Is D
Explanation: Because each of the Trophic levels pass on 10% of their energy to the Trophic level that ate it, if that can make sense.
Answer:
D. 10%
Explanation:
According to the 10% rule, ten percent of energy is passed from one energy level to the next.
What is a difference between prokaryotic and eukaryotic cells? A. Eukaryotic cells do not have membrane-bound organelles, but prokaryotic cells do. B. Prokaryotic cells always have cell walls, but eukaryotic cells do not. C. Prokaryotic cells do not have a nucleus, but eukaryotic cells do. D. Organisms with eukaryotic cells are always multicellular, but organisms with prokaryotic cells are not.
Answer:
Your right option is C
Explanation:
Like a prokaryotic cell, a eukaryotic cell has a plasma membrane, cytoplasm, and ribosomes, but a eukaryotic cell is typically larger than a prokaryotic cell, has a true nucleus (meaning its DNA is surrounded by a membrane), and has other membrane-bound organelles that allow for compartmentalization of functions.
Answer:
C. Prokaryotic cells do not have a nucleus, but eukaryotic cells do.
hopefully this helped :3
You are on vacation with your family up in the mountains. Your friend is on vacation near the equator by the ocean. Explain which climate will experience the most precipitation based on what you know. Both climates will have the same amount of precipitation. The ocean climate will have less precipitation because it is close to sea level. The climate around the equator will have more precipitation because it is very hot. The mountain climate will have more precipitation because it increases with elevation.
Answer:
Mountan
Explanation:
How does the nervous system work with the circulatory system
Answer:
look at the explanation
Explanation:
the circulatory system also known as the heart, lungs, brain and blood stream are all connected to the brains by nerves, sending small electric currents (commands) to the organs telling them what to do. when the nerves are stimulated, they send signals to the brain giving it information.
The plasma membrane is composed of a phospholipid bilayer with embedded proteins. What is one of the functions of the embedded proteins?
A.
preventing the phospholipid tails from binding together
B.
allowing specific substances to flow into the cell
C.
protecting the cell from physical harm
D.
defining the cell's structure and shape
Answer:
answer is b
it allows specific substances to cross through it
How does El Nino impact
climate in the US?
A. Precipitation increases in the
north and decreases in the south.
B. Winds in the south move east
causing increased tornadoes.
C. Winds in the north move west,
causing increased tornadoes.
D. Precipitation increases in the
south and decreases in the north.
During El Niño, the jet stream is oriented from west to east across the southern portion of the United States, making the region more susceptible to severe weather outbreaks.
Polar and tropical regions maintain fairly constant average temperatures because
Answer:
The continual motion of air and water reallocates heat energy throughout earth.
Explanation:
Limestone is a rock formed from calcite. Calcite can be easily dissolved by acids. Marble is a rock formed from limestone. Therefore, what can be said about marble? Question 4 options: Marble is a metamorphic rock Marble can be dissolved by acids Marble can be dissolved by acids All of these are correct
Answer:
All of these are correct
Explanation:
According to the question, marble is a rock formed from limestone, which in turn is also formed from Calcite. This shows that marble is a kind of metamorphic rock because a metamorphic rock is any rock that is formed by the alteration of other rocks caused by heat, pressure or chemicals etc. These changes that occurs in the previously existing rocks are called METAMORPHOSIS.
Hence, since marble is formed from limestone, it concludes that marble is a metamorphosed rock formed from a previously existing limestone rock. Also, since Calcite, a precursor of limestone that marble is formed from can be degraded by acids, both limestone and marble which are formed from it will also be dissolvable by acids.
Mechanical weathering _____ change the composition of a rock, whereas chemical weather ______. Question 8 options: Does; does not Does not; does
Answer:
Mechanical weathering does not change the composition
Chemical weathering does change the composition
Explanation:
Scientific evidence must be reasoned (considered) by an individual, because it does not represent absolute proof. True False
What's the main term used to locate in the alphabetic index for acute perforated gastrojejunal ulcer
Answer:
K28. 1-
Explanation:
ICD-10 Code for Acute gastrojejunal ulcer with perforation- K28. 1- Codify by AAPC.
What are DNA machines, according to Kraves?
Answer:
they are machines or devices build to find la DNA trace and copy it multiple times.
Explanation:
DNA machines are machines built to find a DNA line and copy it multiple times, so scientists can read, observe, and find information about the DNA strand. For example, DNA machines can determine if someone is related, if someone has cancer, and it can distinguish a person’s ancestry. Mainly this is how forensic science uses to determine when there's a suspect in a crime.
Answer:
Machines that can find any specific line of genetic information. They then copy the target gene until we are able to visualize it
Explanation: I watched the actual video
Which of these elements is a noble gas? A. hydrogen (H) B. barium (Ba) C. nitrogen (N) D. krypton (Kr) E. bromine (B
Answer:
the answer is krypton
Which of the following statements describes ways cellulose and starch are similar to and different from each other?
Explanation:
Similarities
Both starches and glycogen are polymers formed from sugar molecules called glucose. Each independent molecule of glucose has the formula C6H12O, and joining these subunits together in a certain way forms the long chains that make up glycogen and starch.
Sucrose, glucose and starch are related because they're all forms of carbohydrate.
Differences
Starch is formed from alpha glucose, while cellulose is made of beta glucose. The difference in the linkages lends to differences in 3-D structure and function. Starch can be straight or branched and is used as energy storage for plants because it can form compact structures and is easily broken down.