Answer: In plants, they need to move mineral ions from the soil into the roots. Mineral ions are more concentrated in the cytoplasm of plant cells than in soil water or dillute.
Explanation:
Minerals cannot be soaked up through osmosis since it only involves the movement of water. Because the minerals are in such low concentration, they cannot be absorbed through diffusion. Active transportation is used instead.
What is active transport?Active transport refers to the transport of molecules or ions into or out of a cell via the cell membrane, from a low concentration region to a high concentration region.
The particles use the energy released during respiration to move against the concentration gradient.
Active transport is defined as the movement of molecules against a gradient from a region of lower concentration to a region of higher concentration.
Active transport in plant root hairs allows plants to absorb mineral ions, which are required for healthy growth, even though the concentration of minerals in the soil is usually lower than in the root hair.
Thus, active transport is needed to take mineral ions into the cytoplasm of the root hair cell, as there is a need to move the minerals from the region of lower to higher concentration.
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Homeostasis is maintained by which of the following organ systems in humans?
A. Multiple organ systems working together
B. The muscular system
C. The endocrine system
D. The nervous system
A. Multiple organ systems working together
Explanation:
All of the organ systems work together to maintain homeostasis in humans because each system does something different. For example, the circulatory system delivers oxygen rich blood to the bones and the bones create new blood cells. When one thing is wrong with one system, it affects all of the systems, like a disease. Another example of this would be the central nervous systems and endocrine working together to coordinate messages to the brain about the body's state while resting and exercising to maintain homeostasis.
???usually means clear weather because stable air is sinking.
O A. High humidity
B. Lower air pressure
C. Low humidity
D. Higher air pressure
High air pressure usually means clear weather because stable air is sinking. The correct option would be D.
High air pressureHigh air pressure usually causes the sky to be clear.
This is because high air pressure causes the air at the lower atmospheric level to sink down towards the earth.
This is unlike low air pressure. It brings a cloudy sky along with precipitation.
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Several groups of students were comparing the processes of mitosis and meiosis. Each group came up with a different answer for how the two processes are different. Which of the groups made a statement about mitosis and meiosis that is most correct?
A). Group 1, they said that mitosis is involved in the growth and repair of cells and undergoes cell division twice, while meiosis is involved in sexual reproduction and undergoes cell division once.
B). Group 2, they said that mitosis is involved in the growth and repair of cells and undergoes cell division once, while meiosis is involved in sexual reproduction and undergoes cell division twice.
C). Group 3, they said that mitosis is involved in sexual reproduction and undergoes cell division twice, while meiosis is involved in the growth and repair of cells and undergoes cell division once.
D). Group 4, they said that mitosis is involved in sexual reproduction and undergoes cell division once, while meiosis is involved in the growth and repair of cells and undergoes cell division twice.
Answer:
B)
Explanation:
Several groups of students were comparing the processes of mitosis and meiosis. Each group came up with a different answer for how the two processes are different.
Mitosis- growth and repair one cell division 2 genetically identical diploid cells
Meiosis- produce gametes, two cell division, 4 genetically different haploid cells
Hope this helps :)
The group that is correct regarding mitosis and meiosis is group 2 as they said that mitosis is involved in the growth and repair of cells and undergoes cell division once, while meiosis is involved in reproduction through fusion of gametes and undergoes cell division twice. The correct option is B.
What is cell division?Type of cell division by which a parent cell divides into two or more daughter cells when a parent cell divides into two or more daughter cells. Cell division is typically part of a larger cell cycle.
Cell division occurs in two stages namely mitosis and meiosis. When most people say cell division, they're referring to mitosis, the method by which new body cells are formed.
Meiosis is the process by which egg and sperm cells are formed. Mitosis is a necessary process for life.
The group 2 is stating the same that mitosis is the division for growth and repair and is done in only once, and meiosis is the process of gamete formation and occurs twice.
Thus, the correct option is B.
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A solution with a hydroxide (OH-) ion concentration greater than water would be a?
A) acid
B) base
C) neutral
D) ion
Answer:
B) base
Step-by-step explanation:
Acids have a higher concentration of hydrogen ions. Bases have a higher concentration of hydroxide ions.
Shield volcanoes are ___ stratovolcanoes
1. Equally explosive as
2. more explosive than
3.less explosive than
Answer:
Less explosive than
Explanation:
Organ systems maintain which of the following at
just the right
levels to support life processes?
a.) pH
b.) Carcinogens
C.) Temperature and pH
d.) Carcinogens and pH
Answer:
C.) Temperature and pH
Explanation:
Organ systems maintain the right temperature and pH levels to support life processes.
This is known as internal regulation or homeostasis.
Processes that support life requires some amount of fairly constant conditions for optimum level of metabolism to be attained. When the conditions are poor or in excess, reactions can greatly suffer. The ability of complex organism to maintain the right levels to support life processes is called homeostasis. pH and temperature are very important to all living organisms.Answer:
i just did the same question
Explanation:
HEEEELP! ASAP! What similarities and differences do you see in the two organisms in image 3?
Answer:
⟱⟱⟱
Explanation:
similarities
thick skin
tusk
feet
differents
height
tail
ears
Answer: Similarities : Tusks, trunk, legs, floppy ears.
Differences : Smaller ears, shorter (smaller build), shorter tail, different facial shapes.
Explanation:
I hope I listed what you needed! Have a fantastic day and good luck! (:
Use stamen in a sentence
i need help with this asapp
How can a ‘FIXED’ cell be used to estimate the time spent in each phase of mitosis.
What are two things that can pass through a cell membrane which makes it selectively permeable?
Molecules of oxygen and carbon dioxide pass through the membrane via diffusion. However, polar molecules cannot easily pass through the lipid bilayer. They can reach the hydrophobic surface, but can't pass through the lipid layer to the other side of the membrane.
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Plz help me with this.
*Please Help* Invertebrates have a higher net production efficiency than mammals. Which statement most likely explains this observation?
A. Invertebrates are more abundant than mammals in an ecosystem.
B. Mammals maintain their body temperature; invertebrates don't.
C. Most mammals are secondary consumers. Most invertebrates are primary consumers.
D. Invertebrates have smaller bodies than mammals.
Answer:
C. Most mammals are secondary consumers. Most invertebrates are primary consumers.
Explanation:
Net production efficiency (NPE) refers to how efficient an organism at one trophic level utilizes and transfers energy to the next trophic level. Ceetain organisms called CONSUMERS obtain energy by feeding on other organisms. They use this energy for their metabolic activities and transfer the rest when eaten or fed on.
As the trophic level increases, the net production efficiency decreases. This is because organisms at the lower level use energy less than those at higher trophic levels. In this question, invertebrates are mostly PRIMARY CONSUMERS (lower trophic level) while mammals are mostly SECONDARY CONSUMERS (higher trophic level). Therefore, invertebrates use energy more efficiently (less) than mammals, making them have a HIGHER net production efficiency than mammals.
List and describe one example of a food chain that contains at least 4 organisms and 4 feeding relationships.
HELPP PLEASEEE
Answer:
grass, rat, snake, hawk
Explanation:
ones eats d other
Answer:
plant, insect, mouse, owl
plant makes food from the sun
insect eats plant
mouse eats insect
owl eats mouse
Which of the following statements is true regarding active transport?
A. It does not use any of its own energy.
B. It uses some of its own energy.
C. It uses energy from other cells.
D. It uses the energy stored mainly in the nucleus.
Answer:
I think c
Explanation:
active transport uses energy from ATP which is not found in the nucleus. so we know it uses energy which is not it's own and ATP is not apart of the nucleus so that leaves c
Which phrase describes the equator?
is a line of longitude
is situated at 0 degrees
connects the North and South Poles
separates the Eastern and Western Hemispheres
Answer:
b) is situated at 0 degrees
Explanation:
the equator is the latitude and it is like a rule in an equal-area map, when you put it horizontally at the center of the earth the rule is at 0 degrees but if you put it vertically at the center it is 90 degrees
and I just take the test, hope it helps :)
Answer:
b is situated at zero degrees
Explanation:
What is equilibrium?
Answer:In a chemical reaction, chemical equilibrium is the state in which both reactants and products are present in concentrations which have no further tendency to change with time, so that there is no observable change in the properties of the system.
Explanation:
Answer:
Equilibrium means when the concentrations of reactants and products are in an unchanging ratio. Another way of saying this is that a system is in equilibrium when the forward and reverse reactions occur at equal rates.
Explanation:
i hope this helps
Greenhouse gases are measured by their ability to trap outgoing solar radiation and convert it to heat, warming the atmosphere.
Global warming potential is defined as the ability of an atmospheric gas to contribute to increasing global temperatures and
anthropogenic climate change. Carbon dioxide is used as a baseline for global warming potential, with a GWP of 1. What best
explains why CFCs (chlorofluorocarbons) have a GWP
nearly 5000?
Answer:
Greenhouse gases, such as carbon dioxide, methane, nitrous oxide, and certain synthetic chemicals, trap some of the Earth's outgoing energy, thus retaining heat in the atmosphere. This heat trapping causes changes in the radiative balance of the Earth—the balance between energy received from the sun and emitted from Earth—that alter climate and weather patterns at global and regional scales.
Multiple lines of evidence confirm that human activities are the primary cause of the global warming of the past 50 years.1 Natural factors, such as variations in the sun's output, volcanic activity, the Earth's orbit, the carbon cycle, and others, also affect Earth's radiative balance. However, beginning in the late 1700s, the net global effect of human activities has been a continual increase in greenhouse gas concentrations.
This change in concentrations causes warming and is affecting various aspects of climate, including surface air and ocean temperatures, precipitation, and sea levels. Human health, agriculture, water resources, forests, wildlife, and coastal areas are all vulnerable to climate change.
Many greenhouse gases are extremely long-lived in the atmosphere, with some remaining airborne for tens to hundreds of years after being released. These long-lived greenhouse gases become globally mixed in the atmosphere and their concentrations reflect past and recent contributions from emissions sources worldwide. Others, like tropospheric ozone, have a relatively short lifetime in the atmosphere.
Explanation:
Brainliest please?
Nami conducts an investigation on plants. She places a grow light on a timer to give the plants different amounts of light to see if this would affect their growth. Which term describes the amount of light in this investigation? hypothesis control dependent variable independent variable
Answer:
independent variable
Explanation:
Independent variable: In psychological experiment, the term "independent variable" is described as a specific variable that is being controlled, altered, or manipulated by an experimenter or researcher or investigator to see its effects on the dependent variable. Independent variable has a direct effect on the dependent variable, so any changes in the independent variable will effect the dependent variable directly.
In the question above, the amount of light in this investigation is an independent variable.
Answer:
independent variables
Explanation:
i said so :)
Which will have the greatest impact on the effects of disease in a population?
Answer:
Nutrition is the answer bcz without nutrition the diseases will effect more in a population
Scientists believe that cancer occurs when
O A. cells stop dividing.
O B. DNA is damaged and cells grow out of control.
C. body cells begin going through meiosis,
OD. cells cannot replicate their DNA.
PLS HELP I WILL GIVE BRAINLIEST
Answer:
B
Explanation:
DNA is damaged and cells grow out of control
Cellulose is a type of
A. protein
B. carbohydrate
C. grass
D. lipid
B Because Cellulose is a polysaccharide consisting of linear chain of numerous linked D-glucose units whereas proteins are formed of number of amino acids linked together by peptide linkage.
Cellulose is a polysaccharide and a structural component of the plant cell. It is a carbohydrate made of many monomers linked together. Thus, B is the correct option.
What is cellulose?Cellulose is an organic chemical that is insoluble in water and is a tough structure classified as carbohydrates. Cellulose is a structural component of plant cells.
It is made by monomer units linked by the beta-1,4 glycosidic bonds and is a biodegradable, tasteless organic compound with the chemical formula (C₆H₁₀O₅)ₙ.
It is the main component of the plant cell wall that provides support and shape due to its fibrous structure. It is made of linear chains of D-glucose units that makes the polysaccharide.
Therefore, option B. cellulose is a carbohydrate.
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Obtaining nutrients from the
environment and breaking them down
for transport...
a.Synthèsis
b.Nutrition
c. Transport
d.Simple Sugars
Answer:
a
Explanation:
Answer:
A
Explanation:
differentiate between arteries and veins what is the importance of capillaries in the circulatory system.
Answer:
Arteries-1.Involved in carrying pure, oxygenated blood and nutrient-rich blood.
2.Consists of three distinct layers, which are rigid, thicker and highly muscular.
3.Located deep within the body.
4.Red in colour.
5.Carry blood away from the heart to various parts of the body.
6.High pressure, as the blood flows by the pumping pressure of the heart.
7.Comparatively higher oxygen level.
8.The level of carbon dioxide is low
9.Lumina is narrow
10.Valves are absent
11.Arteries are at a greater risk of certain diseases like angina pectoris, atherosclerosis, etc.
Veins-1.Involved in carrying impure, deoxygenated blood
2.Consists of three distinct layers, which are thin and collapsible.
3.Peripherally located closer to the skin.
4.Blue in colour.
5.Carry blood towards the heart from the various parts of the body.
6.Low pressure, as the blood flows by the capillary action of the veins.
7.Comparatively low oxygen level.
8.The level of carbon dioxide is high
9.In upward direction from the body tissues to the heart.
10.Lumina is wide & Valves are present.
11.Veins are less susceptible to diseases such as varicose veins.
Though tiny, the capillaries are one of the most important parts of the circulatory system because it's through them that nutrients and oxygen are delivered to the cells. In addition, waste products such as carbon dioxide are also removed by the capillaries.
Explanation:
Hope this helps you
Crown me as brainliest:)
Cows host a variety of bacteria in their bodies. Many of these bacteria live in
their digestive tracts and help them digest the grasses they eat. In turn, the
bacteria receive a place to live and a plentiful food supply. What kind of
relationship is this?
1.commensalism
2.Amensalism
3.Mutualism
4.parasitism
Answer:
Commensalism
Explanation:
Commensalism, in biology, a relationship between individuals of two species in which one species obtains food or other benefits from the other without either harming or benefiting the latter.
Which of the following are abiotic factors that shape ecosystems?
Group of answer choices
what characteristic of an element determines its place in the table
Answer:
An element's location in the periodic table is largely dependent on its electrons; the number of valence shell electrons determines its group, and the type of orbital in which the valence electrons lie in determines the element's block.
Explanation:
hope that helps!!!!!!!!
Answer:
It depends the number of protons in the nucleus of the atom.
Explanation:
The number of protons determines chemical properties as well as its place in the periodic table.
Renewable or nonrenewable
1: nonrenewable
2: renewable
3: nonrenewable
4: nonrenewable
5: renewable
6: renewable
7
8: renewable
9: renewable
10:nonrenable
11: renewable
12: nonrenewable
13: nonrenewable
14: renewable
15: non renewable
16: nonrenewable
17: renewable
18: non renewable
19: non renewable
20: non renewable
I'm not sure about number 7 because nuclear energy its self is a renewable resource but what is used in nuclear powerplants is not.
The main site for photosynthesis in plants is the
OA.
roots.
OB.
flowers
C.
leaves.
OD
stems.
Answer:
leaves
Explanation:
The main site for photosynthesis in plants are the leaves. Leaves are the main spot of a plant where you can see photosynthesis occur.
In eukaryotes, the Krebs cycle takes place within the