D) It selectively regulates passage of materials into and out of the cell.
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.They keep toxic substances out of the cell.They contain receptors and channels that allow specific molecules, such as ions, nutrients, wastes, and metabolic products.Therefore, correct option is D)
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Choose THREE reasons why less energy is passed from one trophic level to the next
Answer:
As metabolic heat makes energy be lost after an animal is consumed the food chain loose energy
Explanation:
What is a rule for making a neutral atom which has no charge?
The rule for making a neutral atom that has no charge is - Electron (E) = Proton (Protons).
Neutral atoms are atoms that have no charge or zero charges. It is known that an atom has three sub-atomic particles; Proton, Neutron, and electrons. Protons have a positive charge, neutrons have zero or no charges and electrons have negative charges.
There are three conditions possible:
The neutral atom that has no charge - The number of electrons and protons must be the same.E = P
A positive ion that has a positive charge - The number of protons has to be more than the number of electrons.E < P
A negative ion that has a negative charge - The number of electrons has to be more than the number of protons.E > P
Thus, the correct answer is - Electron (E) = Proton (Protons).
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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
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:
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
In which of the following ways does a bacterial cell differ from an animal cell?
A. bacterial cell is much larger than an animal cell
B. bacterial cell has more mitochondria than an animal cell
C. bacterial cell has RNA for its genetic material, whereas an animal cell does not
D. a bacterial cell does not have membrane-bound organelles, whereas an animal cell does
Answer: It would be option D, "a bacterial cell does not have membrane-bound organelles, whereas an animal cell does." Bacteria cells are prokaryotic. This means that they have no membrane bound nucleus or membrane bound organelles whereas a plant or animal cell does.
which is true about the inside of an animal cell?
Answer:
Where are the choices ?
Explanation:
disadvantage of dust particle in the air?
Answer:
premature death in people with heart or lung disease.
nonfatal heart attacks.
irregular heartbeat.
aggravated asthma.
decreased lung function.
Which of the following is NOT a necessary characteristic of a living things?
Answer:
B) Living things eat.
Explanation:
Not all living things have to eat. Living things, like plants, make their own food.
The following is not a necessary characteristic of a living thing: that they eat, which is present in option b, as the living organism grows, reproduces, and is made up of cells.
What is the significance of the living organisms?Living organisms are made up of cells, and there are many forms of living organisms, such as prokaryotic bacteria and complex multicellular animals, and all of them grow and reproduce. Living organisms such as plants don't eat like animals, but they do take part in the reproduction process to form new plants, and the living forms grow in size as they develop.
Hence, the following is not a necessary characteristic of a living thing: that they eat, which is present in option b, as the living organism grows, reproduces, and is made up of cells.
Learn more about the living organisms here.
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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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match the type of heat transfers to the example
Answer:
What example
Explanation:
CONFUSION
Homologous chromosomes are chromosomes that are the same? true or false
Answer:
False
Explanation:
The 22 pairs of homologous chromosomes contain the same genes but code for different traits in their allelic forms since one was inherited from the mother and one from the father. So humans have two homologous chromosome sets in each cell, meaning humans are diploid organisms.
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
Question 1 (1 point)
A mosquito larvae quickly swimming to the bottom of the water when it sees a shadow or feels a vibration is an example of which of the following?
Question 1 options:
responding to environment
evolution
metabolism
homeostasis
Question 2 (1 point)
A rabbit is an example of an Autotroph
Question 2 options:
True
False
Question 3 (1 point)
Asexual reproduction requires both a male and a female to supply genetic material
Question 3 options:
True
False
Question 4 (1 point)
A complex animal such as a Human or a Lion would be examples of which of the following?
Question 4 options:
plant life
vegetarian
unicellular
multicellular
Question 5 (1 point)
The instructions for growing and living that is in all living creatures is known as what?
Question 5 options:
ATP
Acidic nucliotides
DNA
Ribosomes
Question 6 (1 point)
An example of a negative feedback loop would a person who gets cold and starts to shiver to try and bring their body temperature back up.
Question 6 options:
True
False
Question 7 (1 point)
“Living things finding a happy balanced condition to live and then using energy to stay there is called which of the following?
Question 7 options:
equilateral
DNA
metabolism
Homeostasis
Question 8 (1 point)
Grass would be a good example of a heterotroph
Question 8 options:
True
False
Question 9 (1 point)
Multicellular organisms are most likely to go through Development and transformation in structures.
Question 9 options:
True
False
Question 10 (1 point)
Genetic material of two parent organisms are contributed for this type of reproduction..
Question 10 options:
binary
sexual
asexual
fusssial
Question 11 (1 point)
Living organisms using energy to live is often known as which of the following
Question 11 options:
Evolution
Metabolism
DNA
homestatic
Question 12 (1 point)
An example of a positive feedback loop would be-during human child birth-- hormones are released; causing contractions- which leads to more hormones being released
Question 12 options:
True
False
Answer:
homeostasis
Explanation:
Burning gas on a stovetop transforms chemical energy into what other types of energy? I need get this Right
Answer:
kinetic
Explanation:
Answer:
Heat and Light energy of course!
Explanation:
In order to use a stove correctly you need heat to cook things, and the light would be the fire. The answer is NOT kinetic energy. It's Heat and Light Energy
Which is the energy of motion
Answer:
The energy of motion is Kinetic Energy
Explanation:
Physical Science Knowledge.
Hope this helps!
Define in sentence form: navigable
Answer:
Navigable a body of water is able to be sailed on by a ship or boat.
HELP ME PLZZZZZZZZ SUPER STRUGGLIN
please help me I’ll give you brainliest Please tell me please help me please help please help please help please help me please help me
Answer:
1: Combustion 2:Atoms 3: Fission 4: Nucleus 5: energy 6: Photosynthesis 7: Solar Energy
Explanation:
TRUE or FALSE
Valence tells to what extent an atom can combine.
Answer:
I am 100% sure that the answer is (True).
An electrocardiogram is a test that doctors use to assess cardiovascular health. The image below shows data given by an electrocardiogram.
h
ہ
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.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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___ is one of the two types of transport tissue in vascular plants. It transports water from the roots of a plant to the stems and leaves.
A. Xylem
B. Stomata
C. Phloem
D. Chloroplast
Answer:
Xylem
Explanation:
Xylem is vascular tissue that transports water and dissolved minerals from roots to stems and leaves. This type of tissue consists of dead cells that lack end walls between adjacent cells.
Most of the life of any cell is spent in a period of growth called ____.a.interphase.telophase.prophase.anaphase
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
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 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
We are pretending that I am testing to see if Vitamin C cures ashy skin. You must write out EVERY step of the study that I must do, especially the actual experiment part. You must also list the "controlled variables", the "independent variable", and the "dependent variable
Answer: Independent variable is the Vitamin C and the ashy skin is the dependent variable.
Explanation:
We can change or manipulate the independent variable of the reaction and such change can be observed on the dependent variable. The dependent variable yields the results of the experiment and changes in the dependent variable must be observed attentively to frame the results.
Here, vitamin C is the independent variable whose affect has to be observed on the ashy skin which is the dependent variable of the experiment. Steps of the experiment:
1. We can apply Vitamin C in a form of solution on the ashy skin.
2. Observe the changes on the skin directly and apply for 2-3 times in a day.
3. Observe the changes on the skin after a week.
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.
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.
