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Answer: 1. only A

Explanation: bio means living

Answer:

(a) Dry weight of living organism

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Answer: Comparing the rates of predation on whitefly nymphs coated with a nontoxic dye versus the undyed whitefly nymphs.

Explanation:

A hypothesis refers to an assumption, which is proposed for the sake of an argument which is tested to ascertain if it's true.

The hypothesis can be tested by comparing the rates of predation on whitefly nymphs coated with a nontoxic dye versus the undyed whitefly nymphs.

Answer:

the process by which green plants and some other organisms use sunlight to synthesize nutrients from carbon dioxide and water.

Hey there!

Photosynthesis is the reaction that converts light energy to chemical energy in sugar and carbohydrates. Humans can't eat sunligh, so we eat the plants. Plants convert the energy in the sunlight into chemical energy using chlorophyll. Chlorophyll is a molecule produced by plants, algae and cyanobacteria, which aids in the conversion of light energy into chemical bonds. It is the reen pigment found in the chlorookasts of higher plants. They are a part of our ecosystem, and they are lower on the food chain.

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Answer:

bar graph can be easily converted to pie chart

Answer:

Ideas aimed at explaining how organisms change, or evolve, over time date back to Anaximander of Miletus, a Greek philosopher who lived in the 500s B.C.E. Noting that human babies are born helpless, Anaximander speculated that humans must have descended from some other type of creature whose young could survive without any help. He concluded that those ancestors must be fish, since fish hatch from eggs and immediately begin living with no help from their parents. From this reasoning, he proposed that all life began in the sea.

Answer:

Clear cutting.

Explanation:

Clear cutting is the most efficient and less costly way to cut down the trees. This practice of cutting trees can harm an ecosystem by increasing erosion, sediment pollution of waterways, and losses in biodiversity that lives there before the cutting of trees. This clear cutting destroy the habitat of thousand of organisms and erosion of the productive layer of soil occurs that is depleted due to heavy rainfall and wind.

Answer:

plasmolysis is the shrinkage of protoplast from the cell wall under the influence of a hypertonic solution.this can be observed by placing the fresh filament of spirogyra in a 10% solution of common salt.the cell undergoes exomosis.

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Answer:

Im pretty sure its true ill coment latter to tell youif it is or not

Explanation:

Answer:

true

Explanation:

The results of an experiment can in fact be validated through replication

Answer:

a

Explanation:

Answer:

b. Determining the isoionic pH of the protein

Explanation:

The sequencing of pure proteins is nothing more than the analysis of the amino acids present in isolated proteins. This analysis is composed by the study of the sequence that the amino acids assume within the protein, the amino acids present in the extremities and the constitution of each one of these amino acids. In summary, we can state that protein sequencing refers to the constitution of these proteins. In this case, the isotonic pH of these proteins is not relevant information.

Answer:

Calcium

Explanation:

Calcium is the healthy bone mineral. About 99% of the calcium in the body is stored in the bones and teeth. It's the mineral that makes them hard and strong. The remaining 1% is needed for many activities that help keep the body functioning normally.

Answer:

Phosphorus will strengthen her bones.

Explanation:

There are a wide number of dietary minerals that are involved in the strengthening of bones. But among all of them, calcium and phosphorus are the key minerals that play an active role in providing strength to the bones. Phosphorus keeps the bones healthy and strong. It also helps in the growth of bones.

Low amounts of phosphorus can lead to thinning of the bones, a disease termed as osteoporosis.

Answer:

option 1

Explanation:

Answer:

a and R

are correct

Explanation:

Answer: At low temperatures the fluidity of the membrane decreases and it favors fluidity. The higher the concentration of unsaturated fatty acids, the less tightly the phospholipids can bind and the more fluid (more permeable).

Explanation:

The plasma membrane is a lipid layer that delimits the entire cell, dividing the extracellular medium from the intracellular (the cytoplasm of a cell). They are composed of phospholipids, which are molecules composed of glycerol, a phosphate group and two lipid chains (such as fatty acids). Glycerol is a three-carbon molecule that functions as the backbone of this membrane. A geometry is formed that allows the phospholipids to line up side by side to form broad sheets. They are insoluble in water, but their unique geometry causes them to aggregate in layers without any energy input, as they possess a hydrophilic phosphate head and a hydrophobic tail consisting of the two fatty acid chains. The hydrophilic heads of the phospholipids in a bilayer membrane face outward and are in contact with the aqueous fluid inside and outside the cell. Because water is a polar molecule, it readily forms electrostatic (charge-based) interactions with the phospholipid heads.

Selective permeability is a property of the plasma membrane and other semipermeable membranes that allow only certain particles to pass through them. In this way, those particles that are needed by the cell can enter the cell and those that are not useful to the cell are prevented from entering. In the same way, the cell can eliminate the particles it has produced as waste. In this way, the entry and exit of substances through the membrane is regulated and the correct functioning of the cell is achieved.

For a particle to be able to cross the plasma membrane it must have a size equal to or smaller than the pores of the membrane, it must have the opposite charge to the charge of the membrane or simply have a neutral charge, and if it is larger than the pores it must be dissolved in a solution, decreasing its size and thus be able to enter the cell through the membrane.  

Plasma membranes are fluid and this fluidity depends on their lipid composition and temperature. Depending on the temperature, membrane lipids can be found in two different states or phases: gel (solid-like, with more rigid hydrocarbon chains) and liquid crystal (more fluid, with more mobile hydrocarbon chains). At low temperatures the fluidity of the membrane decreases and in these conditions the increase of its concentration favors fluidity. The temperature at which the transition from one state to the other occurs is the phase transition temperature (Tc). At values below Tc, the bilayer is in the gel state and at higher values it passes to the liquid crystal. It should be noted that there is an equilibrium between the gel state and the liquid crystal state and that the characteristics of the lipids of the bilayer condition the transition temperature. In the case of bilayers consisting of only one type of lipid, the Tc is well defined. But biological membranes are complex lipid mixtures and the transition from one state to another occurs over a range of temperatures. The presence of short-chain or unsaturated fatty acids reduces the transition temperature, while saturated fatty acids and the increase in the length of the hydrocarbon chains cause this temperature to rise. Then, phospholipids with unsaturated fatty acid tails cannot bind as tightly due to the bent structure of their tails. For this reason, a membrane of unsaturated phospholipids remains fluid at lower temperatures than a membrane of saturated phospholipids.  

The fluidity of a membrane is the ability of a molecule to move through it. In short, the higher the concentration of unsaturated fatty acids, the less tightly the phospholipids can bind and the more fluid (more permeable) the membrane will be even at low temperatures. However, at low temperatures the fluidity of the membrane decreases (lower permeability) but the effect will depend on the composition of the fatty acids. To determine the exact permeability, it is necessary to relate the concentration of unsaturated bonds and the length of the fatty acids in the phospholipids and the temperature.

Antibiotics are drugs that are able to fight diseases caused by bacteria. Besides, it is a "golden solution" that can kill harmful bacteria (pathogenic bacteria such as fungi, actinomycetes, ...), has the effect of inhibiting the growth and spread of of these bacteria.

Answer:

antibiotics mean a type of antimicrobial substance against bacteria.

The question is solved using the equations of motion

According to the equations of motion:

[tex]v^2 = u^2 -2gh[/tex]

v = final velocity

u = initial velocity

g = acceleration due to gravity

h = height

Note that at the maximum height, the final velocity (v) = 0 m/s

so we can write:

[tex]u^2 = 2gh[/tex]

[tex]h = \frac{u^2}{2gh}[/tex][tex]h= \frac{100^2}{2 * 10}[/tex]

h = 500 m

The time taken is obtained from:

[tex]v= u - gt[/tex]

since v= 0 at maximum height

[tex]u = gt\\\\t= u/g\\\\t= 100/10\\t = 10 s[/tex]

For more about equations of motion, see

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Answer:

start process with gulcose

Explanation:

simple

Answer:

 true it consumes some ATP as well as producing it

true it produces ATP that can be directly used by cells

true it does not directly require oxygen to operate

false it produces more ATP than any of the other respiration reactions

Glycolysis consumes some ATP as well as producing it, it produces ATP that can be directly used by cells and it does not directly require oxygen to operate. Hence option A,B and C is correct.

ATP stands for adenosine triphosphate. It is defined as an organic substance that fuels a variety of functions in living cells, including chemical synthesis, condensate dissolution, nerve impulse transmission, and muscular contraction. It is a byproduct of the photophosphorylation, cellular respiration, and fermentation processes and serves as the primary energy currency of the cell.

Glycolysis is defined as a chain of events that convert glucose into two pyruvate molecules, which have three carbons each. Glycolysis is a cytoplasmic process that breaks glucose down into two molecules with three carbons apiece and releases energy. Hexokinase, a phosphorylating enzyme, assists in the phosphorylation process that traps glucose.

Thus, glycolysis consumes some ATP as well as producing it, it produces ATP that can be directly used by cells and it does not directly require oxygen to operate. Hence option A,B and C is correct.

To learn more about glycolysis, refer to the link below:

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Answer:

C NUCLEUS

Most of an atom's mass is in the nucleus—a small, dense area at the center of every atom, composed of nucleons. Nucleons include protons and neutrons. All the positive charge of an atom is contained in the nucleus, and originates from the protons.

spider has no tail and has no stinger

Answer: its a spider

Explanation: cause it case a legs and it has two body regions

Answer:

Husky. Why not?

Explanation:

Answer:

They produce identical daughter cells.

Answer:

Combustion

Explanation:

Combustion is the chemical reaction that happens when fuel burns.

Answer:

cells in mitosis go through the PMAT stages twice to produce diploid cells while cells in meiosis go through PMAT stages once to produce haploid cells, is. the best answer

Answer:

The Answer is A.) Cells in mitosis go through the PMAT stages twice to produce diploid cells while cells in meiosis go through PMAT stages once to produce haploid cells.

Explanation:

Edge 2021

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Answer:

[tex]\boxed {\boxed {\sf A. \ Osmosis}}[/tex]

Explanation:

ATP or adenosine triphosphate is used as energy in all living organisms. It is required for many processes to keep an organism alive. We are looking for the process that does not require ATP.

A. Osmosis

Osmosis is the diffusion of water across a selectively permeable membrane. It is a type of passive transport, so there is no energy expenditure. ATP is not used, but we can check the other answer choices.

B. Healing a cut

Healing a cut requires transporting substances to the cut, inflammatory responses, and cell division to repair the cut. This does require ATP.

C. Keeping warm

To stay warm the body's blood vessels near the surface constrict so less heat is lost and the sweat glands are inactivated. This requires ATP.

D. Push ups

Push ups require many different muscles throughout the body and exercise requires lots of ATP.

The correct answer is Choice A. Osmosis.

Answer:

The Gulf Stream affects London because C. It moves warm water north from the Gulf of Mexico, making London warmer than it should be at its latitude.

Explanation:

If it weren't for the Gulf Stream, London would have the same climate as Canada rather than New York. This is why latitude is not the only factor for an area's average temperature throughout a certain time of a year.

A action that has came in result of an event

Answer:

8

Explanation:

Los 5 huesos que forman la base del cráneo son el etmoides, el esfenoides, el occipital, el frontal emparejado y el temporal emparejado. La base del cráneo se puede subdividir en 3 regiones: las fosas craneales anterior, media y posterior.

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