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A.
B.
C.
D.

Answer:

Answers 1, 2, and 4

Explanation:

3 is incorrect because every organism is made of cells, not just unicellular organisms. these organisms do, however, have one cell that carries out all functions for the organism.

5 is incorrect because plants are multicellular organisms and thus have more than one cell.

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Multicellular organisms are made up of millions of cells. These cells are divided into separate groups. Each group performs a specific function. Since these cells carry out only a particular function, they do it efficiently.

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Explanation:

many people think Polaris is the sky's brightest star.... that's because it's located nearly at the north celestial pole, the point around which the entire Northern sky turns..... shining in the northern sky every night, from northern Hemisphere locations.... diagram or big Dipper with arrow from two stars to Polaris.

Answer:

urban areas

Explanation:

because the population of urban areas in those countries is more then villages.

Answer:    Genes are made up of DNA

Explanation:   Genes are made up of DNA . to be more precise each gene is   made out of possibly  25 000 dna to 2 million dna.

A gene is the basic physical and functional unit of heredity. Genes are made up of DNA. Some genes act as instructions to make molecules called proteins. However, many genes do not code for proteins. In humans, genes vary in size from a few hundred DNA bases to more than 2 million bases. The Human Genome Project estimated that humans have between 20,000 and 25,000 genes.

Every person has two copies of each gene, one inherited from each parent. Most genes are the same in all people, but a small number of genes (less than 1 percent of the total) are slightly different between people. Alleles are forms of the same gene with small differences in their sequence of DNA bases. These small differences contribute to each person’s unique physical features.

Answer:

a. The solution in the bag would turn purple as the iodine reacts with the starch.

Explanation:

According to this question, a solution containing starch is placed into a securely tied dialysis bag. The dialysis bag is then placed into a breaker containing distilled water and iodine for 30mins.

The starch is a solute substance, which when added to the solution in the dialysis bag makes the solution in the bag HYPERTONIC in comparison to the hypotonic (low solute concentration) distilled water+iodine in the beaker. Based on this concentration gradient (difference in concentration), osmotic flow will occur across the dialysis bag (semi-permeable membrane).

Note that, osmosis is the movement of water from a region of low solute concentration to a region of high solute concentration across a membrane. Hence, water+iodine from the breaker will move into the solution in the dialysis bag.

Because the solution entering the dialysis bag contain iodine, it will react with the starch content of the dialysis bag and form a dark purple coloration inside the dialysis bag.

Answer:

Coevolution  

Explanation:

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The example of flowers evolving to produce ultraviolet markers on their petal in response to the ability to see ultraviolet radiation in honeybees is that of coevolution.

According to a definition, coevolution refers to reciprocal changes in 2 or more living organisms that are involved in some forms of interactions.

In other words, it is the development of certain characteristics by one organism in response to characteristics developed by another based on the fact that the two organisms interact in some ways.

In the illustration, some flowering plants depend on honeybees for pollination. Thus, as the honeybees developed the ability to see ultraviolet radiation, flowers had to evolve ultraviolet markers so as to keep guiding the honeybees to them and keep the relationship going.

More on coevolution can be found here:  https://brainly.com/question/1489642

Answer:

❥ Ripe pawpaws give off a wonderful fruity aroma. If the pawpaw does change color, it will likely turn a lighter shade of green, possibly with some yellowing. A more reliable indicator is feeling. The fruit will begin to feel softer, much as a peach or avocado.

❥ Your ripe tomato will give slightly to the touch. It shouldn't be soft but rather a little tender. Because tomatoes ripen from the inside out, this is a good indicator that it's ready.

Answer:

B

Explanation:

Answer: The answer is B. Has risen by nearly 1 degree C since 1880

Explanation: Edge2021

Answer:

I think its land is heated through radiant energy

Answer: land is heated up by radiant energy

Explanation:

Radiation from the sun heats up Earth's landmasses and oceans. The weather and climate on Earth are directly dependent on this heat energy transfer, and so are all the phenomena that accompany weather, such as winds, tornadoes, hurricanes, rain, snow, and ocean waves.

Answer:

I'm pretty sure the answer is b. Monosaccharides

Explanation:

Monosaccharides are simple sugars that contain fructose and glucose, which I believe maple syrup has.

Answer:

If plants are grown in soil containing worms, then both the plants and worms will benefit from each other because worms break down the organic matter around the dirt, fertilizing the dirt which helps the plants grow.

Answer:

Both are hydrophobic

Explanation:

Because first of all Internal start- transfer process is a process where a peptide is transfered to the side opening of translocon and then then fixes itself in the membrane, whereas

Stop-transfer sequences in proteins act to stop this process of translocation and moves out through the side opening in translocation to fix itself on a membrane this is consistent with the hydrophobic nature that repels water. Because they are non polar and lack the capacity to form a hydrogen bond with another molecule

Answer:

Ecology is the scientific analysis and study of interactions among organisms and their environment. ... Environmental science focuses on the interactions between the physical, chemical, and biological components of the environment, including their effects on all types of organisms.

Explanation:

Answer:

Ecology is the study of all organisms in an environment

Environmental science is the study of the interrelatedness of everything in that environment

Explanation:

The virus that is sitting in a droplet of water on a desk is inactive, and they need a living cell to reproduce themselves because they do not have the machinery to reproduce. Thus, the correct option is D.

Viruses can be defined as the acellular organisms. These are very small organisms which does not have any organelles. The viruses contain only the genetic material in the form of DNA or RNA and a protein coat which surrounds the genetic material.

Viruses are found to be pathogenic in nature. These can infect many organisms such as plants, bacteria, and animals. Viruses cannot divide outside a living body as they do not have the machinery to reproduce and thus requires a cell to divide. These are inactive outside the living body.

Therefore, the correct option is D.

Learn more about Viruses here:

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Independent Variable: Fertilizer

Dependent Variable: Plant Growth

Hypothesis: Giving plants fertilizer will help them grow faster than plants with no fertilizer.

Controls: Type of plant, watering routine, temperatures, amount of sunlight.

Explanation:

Independent variable always modifies the dependent variable.

Dependent variable always changes based off of the independent variable.

The hypothesis must be a statement that can be tested with an experiment.

Control variables should stay the same throughout the experiment in order for the experiment to be testable and accurate.

Answer:

Yes, it seems that male doctors do indeed perform more of these surgeries than the female doctors.

Explanation:

According to the given data, the distribution curve for the female doctors will be more symmetrical since the mean and median value is close to one another. The mean value and other indicators in the data set show higher values for the male doctor.

Answer:

all functions

Explanation:

To survive, unicellular cells must carry out all functions.

Hope this helps!

Unicellular cells must carry out all functions of life. Thus, the correct option is A.

Unicellular cells may be defined as those organisms that generally consist of only a single cell. This single cell carries all the essential functions of life which are required in order to survive in nature.

The complexity of the genome in a such single-celled organism is very simple. The mechanism of compartmentalization is not found inside the cell of such organisms. All the functions are carried out by the same cell.

Examples of unicellular organisms are Bacteria, amoeba, Paramecium, archaea, protozoa, unicellular algae, and unicellular fungi. They possess a cell wall made up of peptidoglycan, chitin, or other forms of polysaccharides. This protect the inner content of the cell.

Therefore, unicellular cells must carry out all functions of life. Thus, the correct option is A.

To learn more about Unicellular cells, refer to the link:

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Answer:

Precise, but not accurate

Explanation:

First, let’s define accuracy and precision.

Accuracy: how close you are to the actual value

Precision: how close the measurements are to each other.

Let’s examine the data given:

39.1, 39.4, 39.1, 39.2, 39.1, 39.2, 39.1, 39.1, 39.4, 39.1

Each number is very close to 39, within 0.1 to 0.4.

The actual temperature of the refrigerator is 37 degrees. Each measurement is about 2 away from 37.

Since the measurements are close to each other, but far from the true value, we can say this is precise but not accurate.

Answer:

Answer:

Explanation:

It's simply law of osmosis.

In osmosis solvent particles move from lower solute concentration to higher solute concentration until both the solution acquire the same concentration. So when a plant cell is kept in hypertonic solution (having more solute concentration), the solvent particles move outside the cell causing it to shrink, which is also known as plasmolysis of cell.

When a plant cell is kept in hypotonic solution (having less solute concentration), the solvent particles move inside the cell causing it to swell up which is also known as deplasmolysis. But due to the presence of cell wall, plant cell can not burst. Cell wall is a very stratchable boundary made up of cellulose mainly which makes the plant cell non-collapsable (but animal cells can burst in hypotonic solution due to absence of cell wall)

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Answer:

Its niche

Explanation:

Answer:

Mitosis- produce two identical somatic daughter cells

Meiosis- produce four genetically different reproductive daughter cells.

Explanation:

Mitosis and meiosis are the two major cellular divisions in multicellular organisms. However, they differ in series of aspects.

Mitosis is a cell division that involves the production of two daughter cells which are genetically identical to the parent cell. Mitosis is used to multiply somatic cells, hence, it is called multiplication division. Mitotic process is the same in humans, alligators and chickens.

Meiosis, contrarily, is a cell division that involves the production of four daughter cells which are genetically different from the parent cell. Meiosis occurs in a two step division process in order to produce sex cells or gametes with a reduced number of chromosomes. Hence, meiosis is called reduction division. Note that, meiosis only occurs in reproductive cells. Meiotic process is likewise in humans, alligators and chickens as long as they reproduce sexually via gametes.

Mitosis and meiosis differ among humans, chickens and alligators because of their different functions and the presence of chromosomes.

Mitosis and meiosis have two kinds of cell division.

In humans, mitosis is a single cell that splits into two exact daughter cells.

Meiosis creates egg and sperm cells.

In animals, meiosis creates gametes directly, and mitosis happens in somatic cells.

Meiosis in the chicken embryo is formed late in embryogenesis. Meiotic germ cells are rather noticeable only in female gonads.

Learn more about Cell Division here:

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Answer: ENDOTOXIN

Explanation: Meningitis is a nervous system disorder that occurs when there is an infection and inflammation of the meninges,these meninges are the membranes that cover the brain and the spinal cord,they are the pia mater, dura mater,and the arachnoid mater.

This infection and inflammation of the meninges is causes by inversion of microorganism, bacteria precisely,when these bacteria that are gram negative invade the meninges,the cell wall of the bacteria dies off exposing the cellular contents, this exposure introduces a toxin known as LIPOPOLYSACCHARIDE directly in to the meninges which disrupts the normal functioning of the meninges, infection further sets in and inflammation is triggered as well.

Answer:

Distanced covered = 20km

time taken = 4 hrs

speed = S/t

=20 /4 = 5 km/hrs

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Answer: 5 km per hour

Explanation: If you set up a unit rate, you can simplify to find the answer.

20 km               ?

------------   = ---------------

4 hr                 1 hr

Use the crisscross method, so 20 times 1 is 20, and 20 divided by 4 is 5, so the answer is 5 km per one hour.

Provided question lacks the group of choices to answer the question, however, the correct group of choices are given below:

A)If phosphorus affects tomato fruit production, then tomatoes that are fertilized with phosphorus will have larger leaves.

B)If phosphorus affects tomato fruit production, then phosphorus should be added to the soil during planting.

C)If phosphorus affects tomato fruit production, then adding phosphorus to the soil will make tomatoes taste better.

D)If phosphorus affects tomato fruit production, then plants that are fertilized with phosphorus will produce more tomatoes.

Answer:

The correct answer would be option D) )If phosphorus affects tomato fruit production, then plants that are fertilized with phosphorus will produce more tomatoes.

Explanation:

To answer the question of Conlan, “Does phosphorus affect tomato fruit production?” he should form a hypothesis that can test the amount of the phosphorus and amount of the production of tomato fruits.

Productivity of fruits dealt with the producing tomato fruit instead of their taste, or size of leaves. So the statement D represent the hypothesis for his question due to the fact that phosphorus can increase the capacity of tomato fruit production.

Thus, the correct answer is option D.

Explanation:

The cell is the basic unit of life

Answer:

B. Cell

Explanation:

The Cell is the most basic unit of life

Answer:

a

Explanation: