Answer:
cellular membranes
Explanation:
Cellular membranes are selectively permeable because they allow only certain molecules to cross into and out of the cell. The phospholipid bilayer is a selectively permeable membrane that surrounds all biological cells. The movement of molecules across the cell membrane bilayer can occur by passive transport (does not require energy) or active transport (requires energy). For example, water molecules pass passively through the cell membrane (passive transport), while other molecules pass through transmembrane proteins against a concentration gradient (active transport).
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A century ago, swords were made from various metals, especially steel. The property that makes steel a good choice for
sword making is
tensile strength
ductility
strength
conductivity
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Answer:
The property that makes steel a good choice for sword-making is strength
Explanation:
The strength of a material is its ability to withstand an applied load or force without failure or plastic deformation. Types of strength of materials include; tensile strength, yield strength, torsional strength, compressional strength, shear strength.
Tensile strength of material is the ability of that material to withstand any force that tends to break or tear it apart. It is calculated by dividing the maximum amount of load or force the material can carry or withstand without breaking by the surface area of the material.
Mathematically, Tensile strength = Force/area
Its unit is Newton per meter squared, N/m².
Yield Strength In Steel
Yield strength is the maximum stress that can be applied before it begins to change shape permanently. Yield strength represents the upper limit of the load that can be safely applied to the meta beyond which it shape deforms.
Steel is an alloy of iron and carbon. It has many important and desirable properties such as durability, hardness and conductivity, and high tensile strength. However, the high strength of steel made a good choice for sword-making in the ancient past and even in the present.
The physical characteristics of an organism are its
Answer:
appearance, development, and behavior
Explanation:
The phenotype, similar to the genotype, can be observed in two senses: wider and narrower. In a broader sense, a phenotype is a set of all morphological and physiological properties by which an organism is recognized and by which it differs from other organisms.
When we look at only one trait, then it is the narrower meaning of the phenotype. What will be the influence of genotype on phenotype depends not only on the genetic basis but also on the action of environmental factors in which the organism develops.
1. Even though the atom is made of charged particles, it is still neutral Explain why. (1 point)
Answer:
An atom is electrically neutral (overall charge is zero) since the total number of protons is equal to the total number of electrons.
Hope this answered your question :)
Why is it important for epithelial cells to sense damage?
Photosynthesis _______ glucose and cellular respiration ______ glucose.
A: Breaks; makes
B: Makes; breaks
Answer:
B.
Explanation:
photosynthesis is "plant food" so ofc it makes glucose not break it
What characteristic of water causes water to stick to the side of a test tube?
I need a claim, evidence, and reasoning !
Answer:
The characteristic of water that makes this liquid stick to the side of a test tube is called capillarity (Claim).
Explanation:
Water (H₂O) is a polar molecule with the ability to generate van der Waals forces, which is explained by the 4 hydrogen bonds it forms to bind to other substances. The consequence of the forces of the molecular bonds are four properties of H₂O, including surface tension, cohesion, adhesion and capillarity.
- Claim: The characteristic of water that makes this liquid stick to the side of a test tube is called capillarity.
- Evidence: Cohesion and adhesion of water are properties that come from the forces of the molecular bonds of water, and whose effect is the ability of water to wet surfaces and adhere to a tube that contains it, the latter due to capillarity. Capillarity also allows water to rise through the roots and stems of plants, through their thin vascular ducts.
- Reasoning: cohesion in water depends on the force of attraction between H₂O molecules, adhesion is the capacity of H₂O molecules to join other different molecules and —together with surface tension— make H₂O molecules close to the walls of a glass tube adhere to it, which represents capillarity.
The effect of capillarity is more evident when the test tube is of a smaller diameter, although capillarity and adhesion to its walls always exist, and to a greater degree than any other substance.
Which of the following describes a type of cell division that produces cells used in sexual
reproduction?
A. mitosis
B. meiosis
C. binary fission
D. cell splitting.
Answer:
b
Explanation:
Answer:
A) Meiosis
Explanation:
I believe you are asking about what type of cell division produces cells with half the number of chromosomes aka eggs and sperm. Meiosis is the process that creates these cells.
how will you describe the pattern as electrons are distribute?
plss answer my question I need it now...... I will mark you brainliest (just answer it correctly)
Answer:
2n∧2 is the formula to find the number of electrons in each shell.
Explanation:
What role do currents play in rivers and streams?
Answer: A current, in a river or stream, is the flow of water influenced by gravity as the water moves downhill to reduce its potential energy. The current varies spatially as well as temporally within the stream, dependent upon the flow volume of water, stream gradient, and channel geometry.
Explanation:
Answer:
Currents help the water in rivers and streams flow downhill, with the ultimate goal of flowing into the oceans, which are at sea level.
Explanation:
got me a 100 on edge 2020
If dad had a blood type of O and mom had a blood type of AB, could they have a child with B type blood?if so what percentage
Answer:
Yes, they could give a child b type Blood.
Explanation:
Parents with blood types AB and O can give their children either A or B blood types, it's a 50% and 50%.
Compare the functions of the circulatory, respiratory, and nervous system in gas exchange
Answer:
Functions of the circulatory, respiratory, and nervous system in gas exchange are interconnected with each other in the following manner:
The circulatory system is responsible to pumps blood around the body. The circulation system allows the absorption of oxygen and releases carbon dioxide in the lungs and the Respiratory system also take oxygen in and releases carbon dioxide. The circulatory system and respiratory system work hand in hand. The brain or nervous system monitors gas or oxygen level in blood and regulates respiratory rate.
Which sequence shows increasing ecological levels of organization
Answer:
Organism, population, community, ecosystem
Hope you find this correct!
This is a negative charge. On the left draw the type of charge that would move away from it. On the right, draw the
type of charge that would move towards it.
(This is science)
Answer:
On the left is negative charge while on the right is positive charge.
Explanation:
On the left, there should be negative charge that will move away due to repulsion force because both charges are same so they move away from one another while on the other hand, on the right side there should be positive charge which will move towards it because both charges are opposite to each other so they attract each other.
Which freshwater ecosystem is most productive?
A. Bog
B. Creek
C. Stream
D. Marsh
Answer:
Marsh
Explanation:
Need help with science.
Answer:
what exactly do you need help with? like whats the question?
Many new reproductive strategies developed during the evolution of terrestrial vertebrates. Which statement identifies one of these new strategies? A. Eggs develop without fertilization B. Eggs develop outside of a parent's body C. Eggs are laid by the female parent only D. Fertilized eggs develop away from the body of water
Answer:
D
Explanation:
One of the reproductive strategies of terrestrial vertebrates is the ability of fertilized eggs to develop away from the body of water.
Water is very important for fertilization in aquatic organisms and one of the biggest challenges posed by migrating to the terrestrial environment is desiccation of the eggs. Terrestrial vertebrates are able to overcome these challenges by making fertilization of eggs internal and the ability of the fertilized eggs to develop away from the body of water.
The correct option is D.
Answer:
D. Fertilized eggs develop away from a body of water
Explanation:
What purpose does xylem serve in trees?
Giving brainliest to first correct answer
Answer:
i think the life soucre
Explanation:
Answer:Xylem is the plant vascular tissue that conveys water and dissolved minerals from the roots of the plant to the rest of the trees for physical support. Basically provides the tree with a way to stand.
Explanation:hope that answer helped I tried<3
Which best describes the central and peripheral nervous systems?
Explanation:
The central nervous system processes stimuli information the body receives, and the peripheral nervous system senses stimuli and carries out the reaction.
Primary productivity is the rate at which
make organic matter.
A. producers
B. consumers
C. decomposers
Answer:
A
Explanation:
Primary productivity, in ecology, the rate at which energy is converted to organic substances by photosynthetic producers.
Which statement is scientifically based
A Mutations rarely occur.
B All mutations are harmful.
C Some mutations can be contagious, like infections.
D Mutations are not passed from parent to offspring.
Answer:
Some mutations can be contagious, like infections
Explanation:
A mutation refers to a change in the DNA sequence. Mutations result from a number of causes. It is a permanent alteration in the structure of the DNA.
Not all mutations are harmful. It has been scientifically proven that some mutations make organisms more infectious.
For instance, the new mutant of Corona virus in UK is more infectious than the former strain.
Answer:
A. Mutations rarely occur.
Explanation:
EDGE 2021
what are the processes of cellular respiration and photosynthesis?
Answer:
Cellular respiration is made up of glycolysis and aerobic respiration (Krebs cycle & electron transport)
Photosynthesis is made up of the light reaction and the calvin cycle (dark reaction)
what are some differences between a eukaryote and a prokaryotes
Answer:
Eukaryote cells have a membrane-bound nucleus and prokaryotic cells do not
Explanation:
explain how the microscopic fixation of nitrogen can have such a large impact on life?
The N2 must be changed through a procedure known as nitrogen fixation. Fixation transforms atmospheric nitrogen into forms that plants' root systems can absorb.
What is nitrogen fixation?Nitrogen fixation is defined as a chemical process that turns airborne molecular nitrogen, which has a powerful triple covalent bond, into ammonia or other related nitrogenous chemicals, usually in aquatic or soil systems but also in industry. In order to give plants access to a vital nutrient that they are unable to naturally obtain from the air, nitrogen-fixing bacteria are used.
Since plants and animals cannot directly utilize atmospheric nitrogen, this mechanism is crucial. Although N2 gas makes up 78% of the atmosphere, most organisms cannot utilize it directly since it must first be transformed into another form. It is transformed into ammonium (NH4+) by bacteria, which plants can subsequently absorb.
Thus, the N2 must be changed through a procedure known as nitrogen fixation. Fixation transforms atmospheric nitrogen into forms that plants' root systems can absorb.
To learn more about nitrogen fixation, refer to the link below:
https://brainly.com/question/19938608
#SPJ2
Adaptations of plants in different climatic conditions in Telangana
Explanation:
Note, Telangana is known to be an area whose climate is usually semi-arid, that is, it is an area that is dry and receives some small amount of rain.
Thus, plants in the Telangana region would usually possess the following adaptive features;
ability to survive under extreme heatgrowing longer roots than normal in other to find water in the soilefficient water conservation especially in their stems.
Sulfur has 16 electrons in its atoms. Over how many energy levels are the electrons distributed, and how many are in each
energy level?
Sulfur has 16 electrons in its atoms. Over how many energy levels are the electrons distributed, and how many are in each energy level? The electrons in a sulfur atom are distributed over the three energy levels; there are two electrons in the first energy level, eight in the 2nd, and six in the third.
please help me Which example is a trace fossil?
dinosaur footprint
dinosaur bone
dinosaur egg
shark tooth
Answer:
Dinasour footprint
Explanation:
6 grade science
Experimental data are collected as: x[100]={1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100}; y[100]={-92.3973,14.0677,98.9626,49.6151,111.88,-38.7967,52.1535,-101.325,65.6111,125.129,151.762, -123.132,-41.8744,-39.3356,-99.7856,-128.881,58.5477,-111.692,-75.3057,4.4723,-100.051,169.051, -15.6953,58.3125,147.346,10.9835,42.3421,166.697,-105.534,-90.2199,151.189,130.022,-8.1448,-51.3493, 164.427,119.154,-99.2704,155.986,133.212,118.035,13.1819,139.678,81.5178,-12.4377,-11.7671,146.627, -25.787,107.25,19.8867,15.6437,112.871,122.552,8.42037,-10.1364,146.682,178.531,203.565,-70.7871, 171.256,-50.6232,193.836,-34.7733,-68.9564,25.3423,75.6537,21.5484,46.5259,-64.22,-13.5792, 74.9213,-26.6872,30.5302,169.534,-36.7224,65.4419,113.978,68.1137,181.414,127.76,145.447,75.5486, 164.201,169.504,110.07,96.713,114.974,155.46,2.72803,-59.9407,13.426,29.9344,-11.052,176.639, 162.505,-18.3784,184.418,234.104,127.227,145.18,0.440172}; Obtain the regression line in the form of y = a x + b.
hi myself thx for the points
When a plant cell, such as one from a peony stem, is submerged in a very hypotonic solution, what is likely to occur? *a. The cell will swell
b. The cell will shrink
c. The cell will remain the same
d. The cell will swell, then shrink over time
Answer:
d
Explanation:
this is the answer......
As DNA polymerase adds new nucleotides it's creating a new nucleic acid polymer. What kind of reaction is this enyme facilitating?
A. hydrolysis
B. dehydration
C. catalysis
D. exothermic
Answer:
C. Catalysis
Explanation:
The polymerase catalyzes the nucleophilic attack of the 3′ hydroxyl group terminus of the polynucleotide chain on the α-phosphate group of the nucleoside triphosphate to be added
What is the nervous system and how does it help you function? What structures are included in the human nervous system?