Answer:
The cell membrane is semi-permeable. (or selectively permeable). The unique structure of the cell membrane allows small substances (like oxygen or carbon dioxide) to easily pass through.
Explanation:
The principal components of the plasma membrane are lipids (phospholipids and cholesterol), proteins, and carbohydrate groups that are attached to some of the lipids and proteins. A phospholipid is a lipid made of glycerol, two fatty acid tails, and a phosphate-linked head group.
Answer:
Explanation:
Because the cell membrane is a selectively permeable membrane it decides what it will allow to pass through the membrane wall and what will not
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Members of the same species of bird became geographically separated. Over many years, the two groups evolved to become two different species. Which of these observations is the best evidence that two separate species developed?
Answer:
More information required
Explanation:
Is there a picture you forgot to post with the question?
In the problem you mention, which I assume comes from the study of finches in the Galapagos, some birds evolved to have different beaks, depending on the food available. Depending on what kind of seeds there are, different beak sizes were selected for, with those with the right fit eventually winning out over the rest on the individual islands.
Some plant roots grow with mycorrhizal fungi. The fungi absorb water and
minerals and pass them on to the plant and receive carbohydrates from the
plant. This is an example of:
- mutualism
- competition
- predation
- parasitism
Answer:
-mutualism
Explanation:
Hope it helps hehe
Which researcher proposed that dreams are a chance for problem solving? A. Sigmund Freud B. Matthew Wilson C. Rosalind Cartwright D. J. Allan Hobson
Answer:
The answer is Rosalind Cartwright.
Explanation:
A researcher who proposed dreams which are a chance for problem-solving is Rosalind Cartwright. Thus, the correct option for this question is C.
What is Problem-solving?Problem-solving may be defined as an instance of illustrating a problem that significantly determines the consequences of the problem along with identification, prioritization, and selection of alternatives for a solution; and implementing a solution.
Rosalind Cartwright was a neuroscientist who proposed the theory of dreams with respect to the chance for problem-solving. She hypothesized the complete mechanisms of dreaming which is particularly based on REM sleep. It is a way to process emotions, experienced during the day.
Therefore, a researcher who proposed dreams which are a chance for problem-solving is Rosalind Cartwright. Thus, the correct option for this question is C.
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Essential nutrients move through a cell membrane by both passive transport and active transport. Which of the following correctly describes the transport of materials across a cell membrane?
Answer:
This question lacks options, the options are:
A). Active transport requires chemical energy to move nutrients from areas of low concentration to areas of high concentration.
B). Passive transport requires chemical energy to move nutrients from areas of low concentration to areas of high concentration.
C). Active transport moves nutrients from areas of high concentration to areas of low concentration without the use of chemical energy.
D). Passive transport moves nutrients from areas of low concentration to areas of high concentration without the use of chemical energy.
The answer is A
Explanation:
Transport of materials across a cell occurs via passive transport or active transport depending on whether energy input is required or not to facilitate the movement.
- Passive transport is the transport of materials e.g nutrients from areas of high concentration to areas of low concentration i.e down a concentration gradient, without the use of chemical energy (ATP).
- On the other hand, active transport requires chemical energy (ATP) to move nutrients from areas of low concentration to areas of high concentration i.e against concentration gradient.
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Answer:
hydroelectric
Explanation:
took the test
Answer:
hydroelectric
Explanation:
What is a biogeochemical cycle?
A. Cycles from earth to life back to the earth.
B. Cycles from within the earth to the surface and back into the earth.
C. Cycles from the atmosphere into the earth.
Helpppp
Answer:
I believe is B
Explanation:
cycling substance is a pathway the chemical substance moves through biotic and abiotic compartments.
Please help! Super easy! (Photo)
Answer:
I don't know you really didn't give us a question so sorry
Answer:
I don't really get this., is there supposed to be a photo?
BRAINLIST
Loveland Loess
(a )Tilting
,(B) Erosion
, (c) Folding
. During which part of the cell cycle does the cell divide?
Answer:
The part of the cell cycle in which the cell divides is called mitosis.
Explanation:
Mitosis, or M phase of the cell cycle, is where the somatic cell divides to obtain two daughter cells identical to the original. Mitosis is divided into four phases, known as prophase, metaphase, anaphase and telophase.
Literally, cell division into two daughter cells or cytokinesis occurs in the last phase of mitosis, telophase, since in the other phases cell nucleus division and chromosome distribution occurs.
The other major part of the cell cycle is known as the interphase, in which the cell prepares for division in the M phase.
why might one type of coal contain more energy than another type of coal?
I think because of the strength of the coal, and the material. That makes a big difference, opinion wise.
Because it has a higher carbon content and/or a greater amount of other energy-rich components such as hydrogen and sulfur.
Why some coals have more energy than others?The amount of energy in coal can vary due to differences in the organic matter from which the coal was formed, such as the amount of plant material, the type of plants, and the amount of time the plant material was exposed to heat and pressure.
Additionally, the formation process of coal can also affect the energy content, with coal formed under higher pressures and temperatures typically containing more energy than coal formed under lower pressures and temperatures.
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In a flashlight, the chemical energy in batteries is changed to ______________________ energy and ________________________ light.
Group of answer choices
thermal, mechanical
EM, nuclear
thermal, EM
EM, sound
Answer:
the answer should be thermal energy
Explanation:
Batteries can convert stored chemical energy into electrical energy. ... Electricity can be transported through wires to places where it is needed and then converted into other forms. In a flashlight, the electrical energy becomes light energy and thermal energy in the bulb.
Explain how the development and improvement of microscopes changed the study of living organisms.
Answer: As scientists started improving on the microscopes, the more they got to observe the cells in depth. Compound light microscope uses visible light to produce a magnified image and doesn't allow it to scatter.
How does greenhouse effect, affects biodiversity and gradual extinction
Answer:
Greenhouse gases let the sun’s light shine onto the Earth’s surface, but they trap the heat that reflects back up into the atmosphere. In this way, they act like the insulating glass walls of a greenhouse. The greenhouse effect keeps Earth’s climate comfortable. Without it, surface temperatures would be cooler by about 33 degrees Celsius (60 degrees Fahrenheit), and many life forms would freeze.
Explanation:
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Is an acid a compound that splits OH-ions
Answer:
Acids are compounds that dissociate (break) into hydrogen (H+) ions and another compound when placed in an aqueous solution. ... If one of the ions is OH-, the solution is basic. An example of a strong base is sodium hydroxide (NaOH).
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Suppose two leaf eating insects live in an area where there is a severe
drought. Many of the plants they both eat die off. What kind of a
relationship do the two insects have? *
*
commensalism
competition
mutualism
predation
Answer:
competition
Explanation:
they have a competitive relationship because they now need to find new plants to survive on and they must make sure they themselves will live
BRAINLIEST A scientist notes that some individual fish survive better in low-oxygen environments than others of the same species. She decides to compare the genes that code for hemoglobin, the protein that transports oxygen in the blood. The table below shows the DNA sequences for hemoglobin isolated from individual fish of this species. It also shows each individual's phenotype. How did these differences in DNA sequence arise, and should the scientist characterize the phenotypes as helpful, harmful, or neutral?
A. The differences arose through breeding. Individual 1’s is neutral, 2’s is helpful, and 3’s is harmful.
B. The differences arose through breeding. Individual 1’s is neutral, 2’s is harmful, and 3’s is neutral.
C. The differences arose through genetic mutation. Individual 1’s is neutral, 2’s is helpful, and 3’s is harmful.
D. The differences arose through natural selection. Individual 1’s is neutral, 2’s is helpful, and 3‘s is neutral.
Answer:
(C) The differences arose through genetic mutation. Individual 1's is neutral, 2's is helpful, and 3's is harmful.
Explanation:
Hope this helps
The differences arose through genetic mutation. Individual 1’s is neutral, 2’s is helpful, and 3’s is harmful characterize the phenotypes as helpful, harmful, or neutral.
What do you mean by phenotypes?In genetics, the phenotype is the set of observable characteristics or traits of an organism. The term covers the organism's morphology, its developmental processes, its biochemical and physiological properties, its behavior, and the products of behavior.
A phenotypic ratio is a quantitative relation between phenotypes showing the number of times the frequency of one phenotype correlates with another.
Phenotype refers to an individual's observable traits, such as height, eye color and blood type.
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A brown eyed person (BB) and a blue eyed person (bb) have several children. Which of these statements describe the probable eye color of their children?
1.All will have blue eyes
2.All will have brown eyes
3.Half will have brown eyes, and half will have blue eyes
4.Less than half will have brown eye
Answer:
2. B. All will have Brown Eyes
Explanation:
Brown is dominant, so all children will have Bb, brown eyes
Answer:
Im pretty sure theyll have brown eyes if not my bad
Explanation:
Which of the following best explains how insulin injections affect signal transduction in an individual with type 1 diabetes
A. They serve as second messengers to regulate glucose uptake to cells
B. They allow alternate signaling transduction pathways to control glucose levels
C. They open channels to allow signaling molecules to enter pancreatic cells
D. They provide a signaling molecule to begin the signal transduction pathway
Answer:
The correct answer is - option A. They serve as second messengers to regulate glucose uptake to cells.
Explanation:
Type one diabetes is a condition that is characterized as the inability to produce enough quantity or at all of the insulin by the beta cells of the pancreas. Therefore, a patient with this condition completely depends on exogenous insulin to maintain the sugar level in the blood.
Insulin is the hormone that removes the excess amount of glucose from the blood by the adipose tissue, liver cells, and skeletal muscle that uptake an extra amount of sugar. there are receptors present on the surface of the plasma membrane which binds with the insulin and acts as a secondary to regulate a cascade reaction to glucose uptake to cells.
This illustration of a cell has a label. If there were no label, how could you tell that this cell is a plant cell and not an animal cell?
Group of answer choices
The cell has a nucleus.
The cell is surrounded by a cell membrane.
The cell is surrounded by a cell wall.
The cell contains cytoplasm.
Answer:
the cell is surrounded by a cell wall
Explanation:
only plant cells have a cell wall.
Answer:
The cell is surrounded by a cell wall
Explanation:
FIrst off, we can eliminate the first option because all cells have a nucleus.
Second off, all cells have a cell membrane, but animal cells DON'T have cell walls, which makes it option 3.
Finally, it's not "The cell contains cytoplasm due to both animal and plant cells having them.
Which molecule supply’s the energy for cellular functions
Answer:
it's right answer is ATP molecule
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Answer:
Law of Segregation - separation
Law of Independent Assortment - assort
Law of Dominance - one trait dominating the other trait
Recessive Allele - trait that is being dominated by
Codominance - a form of inheritance wherein the alleles of a gene pair in a heterozygote are fully expressed. As a result, the phenotype of the offspring is a combination of the phenotype of the parents. Thus, the trait is neither dominant nor recessive.
Incomplete dominance - dominant allele does not completely mask the effects of a recessive allele, and the organism's resulting physical appearance shows a blending of both alleles
True or false, Water molecules tend to push away from each other.
Answer:
False
Explanation:
Water molecules actually adhere to eachother
Which is more important: the brain or the heart? Explain your reasoning.
Answer:
i would say the heart
Explanation:
the heart pumps blood through your system, keeping you alive. the brain only helps you think. and plus, so many people in this world are dumb so they already surviving without a brain so the obvious answer is heart
Groundwater is protected from pollution because it is underground
O True
False
Answer: True
Explanation: Most surface water interacts with underground water sources. Thus, if
groundwater is contaminated, connecting springs, streams, and lakes may suffer the
consequences as well.
Ten fish have lived in a 10-gallon fish tank for 6 months. However, within 2 weeks of adding 6 new fish, the population of fish drops to 7
fish. Which most likely accounts for this drop in the fish population?
A. The additional fish increased the water level.
B. The additional fish reduced the space per fish.
C. The additional fish increased the water temperature.
D. The additional fish reduced the carbon dioxide levels.
Answer:
I think it's D
Explanation:
Although space per fish is important, and may even be correct, I found D to be the most logical answer as each fish would need the same amount of carbon dioxide or the unbalance would cause a decrease in population.
Hope this helps
Help plssssssssssssssssssssssssss
Answer:
b.
Explanation:
Answer:
Hypotonic is true
Explanation:
The time that cell is turgid it means that the water enters alot in the cell.
In the text it is mentioned that this happens in an hypotonic solution.
Organisms, such as animals, can be organized by their smaller components. An animal, such as a dog, can be described by its smaller units.
In this case, the dog is the organism, which is made up of organ systems such as the nervous system. The nervous system is made up of organs such as the brain.
Describe the last three units of organization left in the dog from largest to smallest and be sure to give an example of each.
Answer:
Naming system that gives each organism a two-word name. ... the first system of classification. Aristotle. Branch of biology that groups and names organisms. taxonomy. Designed a system of classifying organisms based on their physical and structural similarities ... Mountain lion and the domestic dog. The are similar because their
They must identify traits that are common to all animals as well as traits that can be used to distinguish among related groups of animals. The animal classification system characterizes animals based on their anatomy, morphology, evolutionary history, features of embryological development, and genetic makeup.
Explanation:
The last three units of organization left in the dog from largest to smallest are as follows:
Organs < Tissues < Cells. What are the units of organization in living animals?The units of organization in living organisms can be initiated with the cell. This is because a cell is the basic structural and functional unit of life. And all organisms are composed of cells.
The cluster of cells togetherly forms tissue in order to play the same function. The arrangement of tissues gives rise to organs. Examples of cells include smooth muscle cells, nerve cells, etc. Examples of tissues are connective tissues, muscle tissue, nervous tissues, etc.
While examples of organs include the stomach, liver, blood vessels, muzzle, kidneys, etc.
Therefore, the last three units of organization left in the dog from largest to smallest are Organs < Tissues < Cells.
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