Explanation:
a) True. The bigger the difference, the steeper the concentration gradient and the faster the molecules of a substance will diffuse.
b) True. Active transport requires cellular energy to achieve this.
c) False. Diffusion is the net movement of molecules from an area where they are at a higher concentration to areas where they are at a lower concentration.
d) True. For diffusion to work, the particles must be able to move around.
e) True. Osmosis requires energy from respiration to be carried
out.
f) False. Partially permeable membranes allow only water but not other dissolved substances to pass through.
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Which factors can affect the amount of friction acting on an object on a solid surface?
ООО
the weight of the object and the force of a push
the type of surface and the weight of the object
the force of a push and the motion of the object
the motion of the object and the type of surface
Answer:
The answer is.
the type of surface and the weight of the object
Hope this helps.
Answer:
THE TYPE OF SURFACE AND THE WEIGHT AND THE WEIGHT OF AN OBJECTChlorophylla is a critical pigment in plants that not only gives many of them their characteristic green color, but
is also important in the process capturing light energy from the sun in order to drive the process of
photosynthesis.
What is the most likely cell structure in which chlorophyll a would be located?
Answer:
In the plant cell it's found in the chloroplast.
Hope this helps.
which of the following is true for identical twins? A . they can have different genes b. they can express the same genes differently c. they can have different fathers d. they are attached until just before birth
Answer:
b. they can express the same genes
How do some cells become brain cells and others become skin cells, when the DNA in all the cells is exactly the same?
Answer:
it has the ability to turn off genes
Explain
two effects of
human factor on environmental hazards.
Answer:
1) Radioactivity, this is an exposure dependent risk of some cancers notably leukaemia.
2) Tobacco smoking, this damages their health.
Explanation:
I hope it helps.
Which three countries would you expect to have the highest standard of living? Drag the labels to the appropriate country?
Answer:
Denmark , Switzerland and Finland
Explanation:
Denmark , Switzerland and Finland are the top three countries in the world having highest standard of living. Standard of living means the availability of basic items, wealth, goods etc to the specific people or region. the people of these above three countries are wealthier, having better financial condition and has a comfort life as compared to people of other countries. The main reason of high standard of living of the people of these countries that these countries are developed whose economy is better than other poor countries.
The data in the graph are the result of a paramecium being placed in a hypertonic salt solution. A graph entitled Paramecium Contractile Vacuole Contractions has salt concentration on the horizontal axis and contractions per minute on the vertical axis. A very low salt concentration has 30 contractions per minute, low: 22, medium: 15, high: 8, very-high: 2. What change would most improve the usefulness of the graph? Replace the concentration descriptions with actual values. Plot contractions per second instead of contractions per minute. Remove the plotted points and just keep the line. Remove the name of the organism from the title.
Answer:
Replace the concentration descriptions with actual values
Explanation:
For results of this nature to mean much, they need to be able to be reproduced by a different experimenter. In order to be able to do that, the experimenter must be able to reproduce the salt concentrations. The graph would be more useful if it had the actual concentration values.
Answer:
Replace the concentration descriptions with actual values
Explanation:
Identify the structures labeled in the diagram.
Label A
Golgi apparatus
mitochondrion
nucleus
DONE
Answer:
C
Explanation
Got it right on edge
Answer:
label A: nucleus label B: ribosomes
Explanation:
trust me.
Plzzz help
Explain how deforestation affects the carbon cycle
Answer:
Deforestation has an effect on the Carbon Cycle also known as the Greenhouse gas effect and global warming. Trees and forest balance the amount of Carbon in the atmosphere through the process of photosynthesis in which plants make their own food with carbon dioxide. ... This excess heat warms the earth.
What is the term for the breakdown of glucose in the presence of oxygen? cellular respiration photosynthesis anaerobic fermentation
Answer:
Cellular respiration
Explanation:
Cellular respiration involves the breakdown of glucose using oxygen to produce energy, or ATP, that is used by the cell.
The breakdown of glucose in the presence of oxygen is called as cellular respiration.
What is cellular respiration?Cellular respiration is the process by which biological fuels are oxidized in the presence of an inorganic electron acceptor such as oxygen to produce large amounts of energy, to drive the bulk production of ATP.
Moreover, it is the process by which organisms use oxygen to break down food molecules to get chemical energy for cell functions, which may be used as energy to power many reactions throughout the body. There are three main steps of cellular respiration: glycolysis, the citric acid cycle, and oxidative phosphorylation.
Hence, it is a series of chemical reactions that break down glucose to produce ATP.
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in a paper on photosynthesis in a desert cactus in which selection would you find a review of existing knowledge that is relevant to the experiment
Answer:
The Introduction
Explanation:
In writing a scientific paper, there are different segments with the relevant information they are to contain. These sections include the abstract, introduction, the main chapters, the results, the discussion, conclusion, and references. The Introduction segment contains relevant background information on the topic of interest. There we find a review of existing knowledge that applies to the experiment. These include past research work and citations of authors.
A statement could also be made relating the purpose of the experiment and methods used in carrying out the research. So, the paper on photosynthesis in a desert cactus would contain a review of existing knowledge in the introduction segment.
Answer:
Introduction
Explanation:
A microbiologist is in the process of classifying a newly discovered organism. Its characteristics include: · eukaryotic · multicellular · reproduces by spores · motile in some stage of its life cycle · decomposer Which type of organism is it most likely to be? club fungus fungus-like protist plant-like protist sac fungus
Answer:
fungus-like protist
Explanation:
A fungus mostly has those characteristics. Most of them are multicellular eukaryotes -- the exception being yeast, which are unicellular eukaryotes. They can reproduce by spores and are decomposers; they even consume via absorptive feeding!
First, it's definitely not plant-like, as it is a decomposer, and there is no indication that it can produce its own food. It doesn't entirely seem like a fungus either, so the answer is a fungus-like protist.
Answer:
The person above is correct. They should get brainliest.
Explanation:
Edge 2021
which type of macromolecule is a new drug most likely to be? A. a lipid B. a nucleic acid C. a protein D. a carbohydrate
Answer:
i would go with b
Explanation:
What are the characteristics of prokaryotes? A prokaryote lacks a well-defined nucleus. A prokaryote cannot perform basic life functions. A prokaryote lacks cell organelles. A prokaryote is larger than a eukaryote.
Answer:
Lacks an well defined nucleus
Explanation:
Answer:
Answer:
Lacks an well defined nucleus
Explanation:
Explanation:
ture or false the resurrection of jesus is a historical event
Answer:
True
Explanation:
Along with the Bible, there are multiple sources siting and confirming the resurrection, along with many eye witnesses and accounts.
The "master controller" gland is the _____. thyroid adrenal pituitary thalamus
Answer:
Hypothalamus is the correct answer to the given question.
Explanation:
Hypothalamus in the brain is the tiny portion of the mind also the Hypothalamus is situated at the foot of the nervous system .The Hypothalamus is just next to the pituitary gland. Hypothalamus is produced by a variety of nucleus as well as the nervous fibers. It's own neuronal links
The main objective of Hypothalamus is to hormonal fluctuation as well as controlling the temperature of the body.All the other option is not the master controller gland that's why these are incorrect option .Answer:
The pituitary gland is the master controller gland.
Explanation:
I just did this: The pituitary gland is sometimes called the "master" gland of the endocrine system because it controls the functions of many of the other endocrine glands.
write any three differences between metals and non-metals?
Answer:
Differences between metals and non-metals
Explanation:
Metals are elements that have luster.
Non-metals are elements that do not have luster. They are dull.
There are one to three electrons in the outer shell of the metals.
There are four to eight electrons in the outer shell of the non-metals.
Metals are a good conductor of heat and electricity.
Non-metals are the bad conductors of heat and electricity.
Metals are malleable, ductile, and sonorous.
Non-metals are brittle, non-ductile, and non-sonorous.
How do enzymes help digestion?
Answer:
Enzymes are essential for healthy digestion.
Explanation:
There are three types of digestive enzymes depending on the type of food on which they act.
Lipases are those that digest fat. After its breakdown into fatty acids and glycerin, they are synthesized by the pancreas.
Proteases are the ones that break the peptide bonds of proteins, reducing them to organic monomers called amino acids. They originate in the stomach or pancreas.
The so-called amylases break down starches and complex sugars in the diet, by breaking the glucidic bonds, releasing mososaccharides (especially glucose). There are 3 types of amylases: ptyaline, pancreatic amylase, and duodenal amylase.
The benefits of these enzymes are:
- They help digestion and reduce the so-called "acidity".
- They reduce the feeling of bloating and gas.
- Improves the digestion of dairy products.
- Food allergies decrease due to good protein digestion.
- They improve the conditions of hiatus hernia and ulcers.
Which statement accurately describes dark matter?
1: It is the same as dark energy.
2: It is well understood by scientists.
3 :It does not emit electromagnetic radiation.
4: It can be observed by shifts in red and blue light.
Answer:
1
Explanation:
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Description
Dark matter is a form of matter thought to account for approximately 85% of the matter in the universe and about a quarter of its total mass–energy density or about 2.241×10−27 kg/m3. .
describe respiration
Answer:
Respiration is a person's breathing and the movement of air into and out of the lungs.
Explanation:
The respiratory system provides oxygen to body tissues for cellular respiration, removes the waste product carbon dioxide.
state any two conditions essential
for good health
Answer:
clean
Explanation:
privacy comfortable easy to use
Answer:
Two conditions essential for good health are: mental and social well-being. Better surroundings or -environment.
Explanation:
Describe how Stella’s view of these plant cells and their parts changed as she transitioned through the three levels of magnification. Be sure to identify at least one cell structure or part of the leaf cells in your description.
Answer:
From lower to higher level of magnification, the stella's view about plant cells.
Explanation:
At lower magnification, the structure of plant cell is not clear by stella but with the increase of magnification, the cell structure becomes enlarge and clearly seen different structures of plant cell by the individual. The boundary of plant cell is known as epidermis. The upper boundary of plant cell is upper epidermis and the lower boundary of plant cell is lower epidermis.
What happens to the dirt and matrix from each grid? it is discarded as trash it is burned to avoid contamination of the site it is collected for further analysis it is put back in the grid after the fossils have been removed?
Collection for further analysis is the action done to the dirt and matrix from each grid.
What is a Fossil?This is the remain of plant and animal which has been preserved in the earth crust.
The dirt gotten from the matrix is usually kept for further testing and analysis in the laboratory.
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Agriculture uses large amounts of water for imigation
Please select the best answer from the choices provided
T
F
Answer:F
Explanation: I just know
¿5. El sistema circulatorio humano consta de vasos, corazón y líquidos circulatorios. Los tipos de vasos son los siguientes: a. _____________________________________________________________________ b. _____________________________________________________________________ c. _____________________________________________________________________
Answer:
La respuesta correcta es "a. arterias, b. venas; y c. capilares".
Explanation:
Los vasos sanguíneos son una serie de conductos a través de los cuales el cuerpo transporta la sangre, asegurando que todas las células del cuerpo tenga acceso a oxígeno, elemento necesario para la respiración celular. Hay tres tipos de vasos sanguíneos: arterias, venas y capilares. Las arterias llevan la sangre del corazón a los órganos, las venas transportan la sangre de los órganos al corazón y los capilares son vasos muy pequeñitos que llegan a las partes más pequeñas del cuerpo.
a. ___________________ is the study of heredity.
b. In all living things, ________________ determine the traits and make each creature unique.
c. An organism that has a __________ gene pair will always have two genes for a particular trait.
d. __________________ is considered to be the discoverer of the basis of genetic theory.
e. Hair color and eye color are known as characteristics or inherited ______________________.
f. Dominant genes are _________________ , whereas recessive genes do not always show.
g. _______________ is the transfer of traits from parents to their offspring.
h. A _______________ organism is one that is the offspring of two closely related organisms that are not from the same species.
i. ___________________________- determines what proteins a cell will produce.
j. The _________________________ is a chart used to predict the traits for the offspring from a cross.
Answer:
a.Genetics
b. Genes
c. homozygous
d. Gregor Mendel
e. traits
f. genotypes
g. Inheritance
h. hybrid
i. DNA
j. Inheritance
All answers are 100% correct
Write about the sand grouse ands it’s adaptation to the environment. Just be 5-7 sentences long. Please help me
Answer:
Sandgrouse is the common name for Pteroclidae, a family of sixteen species of birds, members of the order Pterocliformes. They are traditionally placed in two genera. The two central Asian species are classified as Syrhaptes. How the sand grouse adapt to environment. The dense layer of under down which helps insulate the bird from extremes of heat and cold. The feathers of the belly are specially adapted for absorbing water and retaining it. Allowing adults particularly males to carry water to chicks that may be many miles away from watering holes.
Explanation:
Poison ivy is a weed that produces an oil which causes skin rashes. Scientists want to perform an experiment to see if poison ivy grows taller when exposed to more carbon dioxide. How should the control group in this experiment be treated?
Answer:
In these experiments the control group is compared with the comparison group.
The control group will sometime be in the presence of carbon dioxide, and will be controlled, where the analyst or researcher will take an expert position and then will compare it evolutionarily with the comparison group that the ideal would be that there is not ever a carbon dioxide
Explanation:
If we have two poison ivy research groups that are representative of the poison ivy that the researchers are looking to investigate the results will have much better credibility and will be more reliable.
On the other hand, the comparison of the two groups makes it possible to rigorously analyze whether or not poison ivy grows in the presence of this gas.
Which form of nitrogen in the soil is usable by organisms?
Answer:
Amonnia the s the userble form of nitrogen by organisms in the soil
Answer:
Nitrate and Ammonia
Explanation:
Nitrate used for plant growth
Ammonia used directly in proteins
Red-flowered snapdragons are crossed with white-flowered snapdragons, producing all pink snapdragons in the F1 generation. What would you expect if you crossed pink with pink? The choices are... (1/2, 1/4, 3/4) red, (1/2, 1/4, 3/4) pink, (1/2, 1/4, 3/4) white.
Answer:
Red (1/4), Pink (1/2), white (1/4)
Explanation:
This question involves a single gene coding for flower colour in the snapdragon plants. The gene exhibits incomplete dominance, because the allele for red color (R) is incompletely dominant over the allele for white color (W), hence an intermediate phenotype is produced as pink color (RW).
The pink colored snapdragon plant is produced in the F1 generation. When these F1 offsprings are crossed i.e. RW (pink) × RW (pink), gametes with R and W alleles are produced by each F1 parent.
Using these gametes in a punnet square (see attached image), four possible offsprings with genotypes; RR, RW, RW and WW will be produced in the F2 generation.
RR offsprings (1/4)- Red flowered
RW offsprings (2/4 or 1/2)- Pink flowered
WW offsprings (1/4)- White flowered