Diffusion is not active and instead a form of passive transport. So the correct option is option C.
Because diffusion is a non-electrical process, small particles move faster than larger ones. For example, molecules such as oxygen, CO2, and glucose move through cells.
Active transport involves moving molecules from a low-concentration region to a high-concentration region. In contrast to diffusion, active transport involves moving molecules against a concentration gradient.
The term “active” refers to the fact that transport is energy-dependent. Active transport is energy-intensive, whereas diffusion is energy-free.
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Fossil fuels (oil) are part of which cycle?
carbon
nitrogen
phosphorus
oxygen
what is the difference between homopolysaccharides and heteropolysaccharides?
Answer:
Homopolysaccharides are composed of same repeating units. heteropolysaccharides are composed of different repeating units. !!
Explanation:
thanku and this is your answer
Ryan was born, he weighed 7 pounds.At 6 months, he weighed 11.2 pounds. Amanda weighed 6 ... Weighed 7 pounds.At 6 months, he weighed 11.2 pounds. Amanda weighed 6 pounds when she was born, and 12.9 pounds at 6 months. Which baby had a greater percent increase in weight? Explain. 2 Please Help Me!!
Answer:
The correct answer is Amanda.
Explanation:
Given:
Ryan weighed-
At born - 7 pounds
At 6 months - 11.2
Amanda weighed-
At born - 6 pounds
At 6 months - 12.9
Solution :
percent increase = difference in weight/initial weight
Ryan = 4.2/7 = 60%
Amanda - 6.9/6 = 115%
Thus, Amanda had a greater percent increase (115%) in weight.
Answer:
Sample response: The percent change in Ryan’s weight was 4.2/7, or 60%. The percent change in Amanda’s weight was 6.9/6, or 115%. Amanda had a greater percent increase in weight.
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A student states that exercise will affect the number of times a person can squeeze a clothespin in a certain amount of time. An experiment is carried out to test this hypothesis. One group of ten students sits quietly before squeezing a clothespin as many times as possible during a one-minute interval. A second group of ten students does 25 jumping jacks before squeezing a clothespin as many times as possible during a one-minute interval. What is the independent variable?
Answer:
EXERCISE
Explanation:
In an experiment, the independent variable is the variable that the experimenter changes or manipulates in order to bring about a measurable outcome.
In this case, an experiment is carried out to test the hypothesis that "exercise will affect the number of times a person can squeeze a clothespin in a certain amount of time". The experiment contained two groups (one group sits quietly before squeezing a clothespin as many times as possible and the other does 25 JUMPING JACKS before squeezing a clothespin as many times as possible).
The independent variable is the EXERCISE (jumping jacks) that was changed for each group in the experiment.
Is Earth's surface stable and stationary now? Was it ever in the past? Do
you think it will be stable in the future? *
Answer:
Is Earth's surface stable and stationary now? ... No the Earth's surface is not stable. I know this because in the video it said that each plate moves at least a centimeter every year. In the past the plates still were moving evidence of this is the formation of the Himalayan mountains
35. Which statement best describes the cell membrane of a living plant cell?
A. It selectively regulates the passage of substances into and out of the cell.
B. It is composed of protein and carbohydrates only.
C. It has the same permeability to all substances found inside or outside the cell.
D. It is a double protein layer with floating lipid molecules.
Answer:
The cell membrane of a living plant cell selectively regulates the passage of substances into and out of the cell (option A).
Explanation:
The plasma membrane in a living plant cell is composed of a double lipid layer that gives it hydrophobic character and acts as a semi-permeable barrier. The partial permeability of the substances allows regulating the passage of substances from and to the interior of the cell.
At the level of the plasma membrane there are several mechanisms and transport to allow the entry of substances needed for the cell or the output of synthesized products or metabolic waste, thus regulating the passage of substance in a selective way.
Regarding the other options:
B. Plasma membranes are composed of lipids, not just carbohydrates and proteins.
C. Permeability is not for all substances, but is selective.
D. Plasma membrane is a lipid bilayer, not a double layer of proteins.
HELP!!
Which factor is a density-independent limiting factor?
Question 4 options:
availability of food
temperature
availability of water
disease
Answer:
The correct answer is temperature.
Explanation:
I took the test.
The density-independent limiting factor is any force that affects the size and population, temperature, hence option b is correct.
What is the density-independent limiting factor?In ecology, a density-independent factor is any force that has an impact on the size of a population of living creatures regardless of the population's density.
This term is also known as a limiting factor (the number of individuals per unit area). These density-independent causes include nutritional or food scarcity, environmental contaminants, and harsh weather.
Natural catastrophes, seasonal patterns, odd weather, and human activities are density-independent influences.
Therefore, in addition, catastrophes like fires, temperatures, and storms can have an effect on population increase, hence option b is correct.
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What best describes a river system?
A. the network that includes all the waters feeding into a main river and all the waters branching out from it
B. the source of a river and all the tributaries feeding into the river
C. the source and mouth of a river
D. all the distributaries flowing away from a river and the mouth of the river
Answer:
i think it’s (A)
Explanation:
TRUE or FALSE
Valence tells to what extent an atom can combine.
Answer:
I am 100% sure that the answer is (True).
An architectural designer might have to do
which of the following with the space provided
for the project?
A. pay for the space
B. alter the space
C. sell the space
D. reject the space
they would B alter the space
What is the role of Cdks? to create enzymes that produce chemical changes to signal the cell to move to the next phase of the cell cycle build structural components of DNA and energy-rich substances to activate the cyclins that cause progression of the cell cycle
Answer:to signal the cell to move to the next phase of the cell cycle
Explanation:
(Just took it)
Answer:
The answer is B. to signal the cell to move to the next phase of the cell cycle
Explanation:
i’m having trouble on this anyone know what goes there?
Answer:
reactants
Explanation:
....................
how does competition affect population
Answer:
competition can cause the population to decrease.
Explanation:
Answer:
The relationship between competition correlates with population.
Explanation:
If there is no competition on a certain set of species, the population would rise drastically, However, if there is more competition for every species, the population would decrease due to more competition for resources.
why do some areas have more acid rain in other places
Answer:
this due to the environment, especially if it is an industrial area,because when different gases or smoke are in the air they combine thereby causing acid rain .
Which cellular structure in an animal cell helps maintain homeostasis by controlling the transportation of substances into and out of the cell?
Answer:
Cell membrane
Explanation:
Cell membrane is the cellular structure in an animal cell helps maintain homeostasis by controlling the transportation of substances into and out of the cell
what is homeostasis ?
Homeostasis is a self regulating process that maintain a stability of internal body with respect to the changing external environment which ultimately maintain a steady state of the living system.
It maintain body homeostasis by regulating body temperature, blood pH, blood glucose level, sodium, potassium and calcium ion concentrations.
Three mechanisms are involved in homeostasis such as Effector, Receptor, Control Center.
The homeostasis can be failed due to two factors such as due to an internal environment or other factors like Genetics, Physical condition, diet, nutrition, toxins, Psychological health etc.
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Most of the life of any cell is spent in a period of growth called ____.a.interphase.telophase.prophase.anaphase
PLEASE ANSWER
Which has been observed in the study of embryology?
A:Species whose embryos have similar traits rarely have a common ancestor.
B:Species whose embryos have similar traits always have similar body forms as adults.
C:All traits present in early embryos remain throughout development.
D:Some traits in certain embryos disappear as the embryo develops.
Is it A,B,C, or D
Answer:
D: Some traits in certain embryos disappear as the embryo develops.
Explanation:
Please tell me if I'm wrong
Answer:
D
Explanation:
Edge 2022
help guys plz :(
Which were likely the closest ancestors to early animals?
a Mosses
b Cyanobacteria
C Colonial protists
d Algae
Answer:
Algae i believe
Explanation:
I say this because the earliest animal is comb jelly
Most likely the closest ancestors to early animals are colonial protists. This is because they are eukaryotic, multicellular organisms that have mitochondria.
What do you mean by Ancestors?Ancestors may be defined as an early type of animal or plant from which others have evolved.
Due to living in groups, they are known as Colonial protists. The most primitive organisms are cyanobacteria which are single-celled organisms.
Therefore, most likely the closest ancestors to early animals are colonial protists.
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Animals engage in both individual and group behaviors. Which of the following is an example of an
individual behavior?
In a termite colony, different tasks are carried out by different types of termites.
O
Monarch butterflies migrate long distances, traveling in groups of many millions.
o
Juvenile chimpanzees model the actions of their parents and other adults.
All members of an elephant herd will contribute to the care of any offspring.
Answer:
most logical answer to me would be the termite colony
Animals engage in both individual and group of animal behaviors. In a termite colony, different tasks are carried out by different types of termites. most logical answer to me would be the termite colony
what is animal behavior?Animal behavior can be defined as all the ways animals interact with other organisms with its physical environment.
Behavior can be defined as a change in the activity of an individual in response to a stimulus, an external or internal cue or combination of both cues.
The causes of these behavior and how it develops in an individual, how it benefits an organism, and how it evolved.
Some behaviors are innate type or genetically hardwired, while others are learned, or developed through experience. In many cases, behaviors have both an innate component and a learned component.
Behavior is shaped by natural selection. Many behaviors directly increase an organism's fitness, that is, they help it survive and reproduce.
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I have a test in biology 9th grade, it’s about organ system and how the orange work together. How do I explain ?
Explanation:
i hope this can help you in any way
An electrocardiogram is a test that doctors use to assess cardiovascular health. The image below shows data given by an electrocardiogram.
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prir
mm
What type of data is recorded by the electrocardiogram?
OA.
the amount of oxygen in the blood
ов.
the electrical activity of the heart
OC. the sound of the heart beating
OD
the force from the heart beating
20 Edmentum. All rights reserved.
Answer:
The type of data that is recorded by electrocardiogram is the electrical activity of the heart.
Explanation:
The heart functions through a nerve structure —the sinus node, the atrioventricular node and the His-Purkinje system— which determine the functioning of the organ through electrical activity.
The electrocardiogram, or EKG, is a device that records the electrical activity of the heart. This allows us to know any alteration in said activity, such as arrhythmias, interruption of electrical impulses or alteration of the heart's anatomy.
In order for the EKG to be able to record the electrical activity, electrodes must be placed on the limbs and chest, which are the sensors in charge of receiving the information of the heart's electrical activity.
Other options are not correct because:
The amount of oxygen in the blood is measured by using oximeters or blood gas measurement. The sound or the force from the heart beating can be recorded by auscultation with a stethoscope.what is the name of worlds largest seed?
Answer:
Coco-de-mer palms (Lodoicea maldivica) produce these monster nuts, which are a type of seed. The biggest can tip the scales at up to 18 kilograms (roughly 40 pounds). That's about as much as a 4-year-old boy.
Please mark as brilliant
Answer:
The worlds largest seed is the Lodoicea maldivica seed
Explanation:
search it up on google
which is true about the inside of an animal cell?
Answer:
Where are the choices ?
Explanation:
Which is the energy of motion
Answer:
The energy of motion is Kinetic Energy
Explanation:
Physical Science Knowledge.
Hope this helps!
When a cell gains water, what will happen to its size and mass?
Answer:
The cell will swell up and eventually burst.
Explanation:
Cells swell if there’s more salt in a cell than outside it, the water will move through the cell membrane into the cell, causing it to increase in size. if too much water gets in, the cell will burst.
Step 1: Identify which nucleic acid the following strand is. 5' TAC - ACT -
GCG - CGA - TAG - CTA - ATT 3' The above strand is an example of: *
it's an example of DNA replication
5' TAC - ACT -GCG - CGA - TAG - CTA - ATT 3'
can be paired with:
3' ATG-TGA-CGC-GCT-ATC-GAT-TAA 5'
Dr. Simeon and her team are studying global climate change. They develop a set of mathematical equations
that relate climate data gathered over the past 100 years. Then, with the aid of a computer, they use the
equations to predict climate change in the future. The team's use of mathematical equations and computers is
an example of which science process?
A observation
B. gathering evidence
0
C. experimentation
O
D. modeling
Answer:
b gather evidence
Explanation:
ask if anymore help
If Alex abducts her arm completely, which action could she have taken?
A. She raised her arm above her head.
B. She lowered her arm to her side.
C.She held her arm up to her chest.
D.She put her arm behind her back.
Answer:
She raised her arm above her head.
Explanation:
If Alex abducts her arm completely, the action could she have taken is she raised her arm above her head. The correct option is A.
What is Musculoskeletal System?Your bones, cartilage, ligaments, tendons, and connective tissues all make up your musculoskeletal system. Your muscles and other soft tissues are supported by your bones.
They assist you in moving, support the weight of your body, and keep your posture. The muscular system's 5 primary purposes are blood circulation, heat production, support, and movement.
The locomotor system, also known as the musculoskeletal system, is a component of the human body that gives us movement, stability, shape, and support. In general, it is separated into two systems: All of the body's muscles are a part of the muscular system.
Therefore, the correct option is A. She raised her arm above her head.
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give reason rumination is necessary in grass eating animals
Answer:
✔️We often observe that cows when eat grass, after eating grass they quickly swallow them. Actually, they store that grass in their stomach called rumen. ✔️In rumen food is partially digested. ... ✔️Rumination is necessary to complete partiallly happened digestion.
Explanation:
A diagram of the DNA strand is provided. The arrow is pointing to which component of the
DNA strand?
Phosphates
Deoxyribose
Nitrogenous bases
Nucleotide
Answer: Nitrogenous Bases
Explanation:
