Which describes symbiosis?A. Two organisms belonging to different species live closely together and have non-specific interactions.B. Two organisms belonging to the same species living in the same area. One organism leeches resources from the other one.C. Two organisms belonging to different species live closely together and have specific interactions.D. Two organisms belonging to the same species living in the same area. They fight to have access to limited resources.

Answer:

1. Extract DNA from cells

2. Cut DNA using restriction enzymes to create smaller fragments.

3. Sequence each fragment.

4. Separate DNA fragments by size so fragments can be isolated.

5. Analyze fragment sequence for overlaps to create a complete genome.

According to the graphics, climate at location D is cooler and drier (option A) than location A as it presents lower temperatures and less precipitations.

An absolute threshold is the smallest level of stimulus that can be detected, usually defined as at least half the time. The term is often used in neuroscience and experimental research and can be applied to any stimulus that can be detected by the human senses including sound, touch, taste, sight, and smell.

For example, in an experiment on sound detention, researchers may present a sound with varying levels of volume. The smallest level that a participant is able to hear is the absolute threshold.

However, it is important to note that at such low levels, participants may only detect the stimulus part of the time. Because of this, the absolute threshold is usually defined as the smallest level of a stimulus that a person is able to detect 50% of the time.

For hearing, the absolute threshold refers to the smallest level of a tone that can be detected by normal hearing when there are no other interfering sounds present. An example of this might be measured at what levels participants can detect the ticking sound of a clock.

Young children generally have a lower absolute threshold for sounds since the ability to detect sounds at the lowest and highest ranges tends to decrease with age.

For vision, the absolute threshold refers to the smallest level of light that a participant can detect. Determining the absolute threshold for vision might involve measuring the distance at which a participant can detect the presence of a candle flame in the dark.

For odors, the absolute threshold involves the smallest concentration that a participant is able to smell. An example of this would be to measure the smallest amount of perfume that a subject is able to smell in a large room.

The amount of force required for you to detect the feeling of a feather lightly brushing your arm is an example of the absolute threshold for touch. When it comes to touch, the level of stimulation required to detect the stimulus can vary dramatically depending upon the part of the body that is being touched.

We have that T is the allele for tall, while t is the allele for short height. If two parents, both with Tt genotypes, have offspring, as we can see in the Punnet square, the descendants' phenotypes will be 3 tall, and 1 short, as you already had in the question.

Ethology is a branch of biology that studies the animal behavior of species in their natural environment. This can be understood or approached under different circumstances, such as how a particular animal species behaves under

Within the plant's chloroplasts, there is a pigment called chlorophyll. Chlorophyll absorbs all wavelengths of white light except for the green wavelength, the pigment reflects this color and this is why it has a green color. The green color of the plants is given by the green color of this pigment.

The correct option is

"They contain the pigment chlorophyll which reflects green light, making the plants appear green. "

Answer:

Purpose of mitosis:

Mitosis plays a significant role in cell repair.

Purpose of meiosis:

The main purpose of meiosis is the production of gametes during sexual reproduction.

Meiosis tends to increase genetic variability in the population.

Explanation:

Hopefully it helps!

The organism that are essential in the conversion of nitrogen-containing compounds to nitrogen forms that are accessible and usable by plants are referred to as nitrogen-fixing bacteria. These bacteria are responsible for converting ammonia to nitrates through fixation.

Chemotrophs get their energy by way of oxidizing inorganic molecules. Heterotrophs consume other plants or animals in order to get energy.

Autotrophs has the ability to make their own food and therefore considered as producers.

Answer - Option 2 - Bacteria

The correct answer is A. Cells are made of molecules. It is not part of the cell theory.

Answer: A dam

Explanation:

A dam is an example of people changing the way water flows.

The correct answer is that one of the parents is homozygous while the other one is heterozygous.

Widow's peak is a dominant trait which is observed even when a single dominant allele responsible for this characteristic is present in an individual. A widow's peak is used to refer to the hairline of a person which is shaped like the letter 'V' progressing downwards towards the central portion of the forehead.

However, the allele for straight hairline is recessive which means that in  the given case one parent must be homozygous, i.e. contain similar alleles (recessive), while the other one with a widow's peak is heterozygous.

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EXPLANATION/ANSWER:

LIPIDS:

• basic unit: triglyceride

• Examples: ,fatty acids,, oils, phospholipid

• made up of 1 molecule of ,glycerol, and 3 molecules of fatty acids

• found in the plasma membrane of the cell

• When consumed, it generates higher energy output than carbohydrates but does not break down as fast as carbohydrates.

• molecules are composed of ,C, H, O and sometimes P

CARBOHYDRATE:

• basic unit: glucose/simple sugars

• Three kinds of carbohydrates: ,monosaccharides,, disaccharides, polysaccharides

• Easily break down to get the energy stored; ,fast fuel

• Starch- produced by ,photosynthesis, is made up of a polymer of glucose

• molecules are composed of ,C, H, O

PROTEIN:

• basic unit:, amino acids

• translated from mRNA

• Enzyme,- proteins that catalyze a chemical reaction

• linked together by a ,polypeptide bond

• molecules are composed of ,C, H, O, and N

Mucous membranes are epithelial membranes that consist of epithelial tissue that is attached to an underlying loose connective tissue. These membranes, sometimes called mucosae, line the body cavities that open to the outside.

Answer: Mucous membrane

The flower in angiosperms is where the reproductive structures of the plant are located.

In the stamens is where the pollen (male gamete) is produced that will fertilize another plant. The stamen consists of two main parts: anther and filament.

Therefore, we can say that the male reproductive structure in the flower is the stamen.

Answer: C) Stamens

Answer:Stamen

Explanation:

Biologists from all around the world will be employed in a range of contexts in the future, including university labs, research facilities, the pharmaceutical and food industries, agriculture, hospitals, and other areas.

Because biology is so essential to our own existence, there will also be jobs for those who are interested in influencing the direction of science in the future.

We'll develop vaccines to stop the spread of diseases, extending the average human lifespan. We will be able to stop global warming and save the planet's future.

Exciting medical developments are taking place, and in the future, we might be able to have our medications customized for us depending on our DNA and environment to ensure that we receive the best effective therapies.

We will be able to produce cleaner, greener energy that is more sustainable than fossil fuels by developing new biofuels from non-food crops, waste biomass, algae, and microorganisms.

We can therefore conclude that many aspects of human existence will improve as a result of biology in the future.

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Complimentary adaptations refer to traits that appear to be designed to specifically interact with another trait of a different species. In this case, option B describes this scenario, plants with long tube flowers attract hummingbirds with long, neddle-like beaks. The long beak of the bird is ideal to get the nectar from the long tube flowers.

- The larynx is a part of the respiratory system, it connects to the pharynx and the trachea, ait allows the air to pass from the throat through the trachea directly to the lungs.

It is in this structure where the vocal cords are found.

- The pharynx, also called throat, connects the mouth to the esophagus and also contributes to breathing and phonation because it connects the nasal cavity, the Eustachian tubes, and the larynx with the buccal cavity.

- The function of the sinuses is to increase the contact surface of the air with the epithelium of the nasal cavity, which allows it to humidify and warm the inhaled air. They also play a role in phonation.

These structures help reduce the relative mass of the skull, thus decreasing its weight, provide "shock resistance" in case of injury, and isolate sensitive structures from rapid temperature changes occurred during inhalation.

- The glottis is the space between the pharynx and larynx.

The only match that is incorrect is c. sinuses - remove dust particles



The term that refers to all living things that live together in a stable community is population. Populations of two or more species that live in the same place at the same time form a community.

So the correct answer is option d. population.

Answer: A

Explanation:

Answer:

C is the answer.

Explanation:

Would not be D

Short segments of newly synthesized DNA are joined into a continuous strand by DNA Ligase.

DNA ligase is a group of enzymes that catalyze the binding of two molecules, which are DNA; synthetase.

During DNA replication, DNA molecules are synthesized on the leading strand continuously, whereas on the lagging strand, DNA is synthesized in short stretches.

These short stretches of DNA are called okazaki fragments and are later joined together by an enzyme called DNA ligase.

Therefore, DNA ligase is responsible for joining newly synthesized DNA molecules.

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Answer:

The natural resistance of plant to diseases is attributed to _____

Answer:

12.50%

Explanation:

Let's consider that the heterozygous flies have genotype AaBbCc. If two flies that are heterozygous for all three traits are crossed together, it results in 12.50% offsprings that are also heterozygous for all three traits.

They are very closely related because they share a common ancestor even if a million years have gone by. We have a so-called divergent evolution in which species share a common ancestor. Through times, these species may have differences when it comes to their physical attributes because of their adaptation to their environment, but their inward structure are quite similar. These organisms may develop homologou structures but do not have similar functions.

Endoplasmic reticulum is a membrane system forming a series of sacs in eukaryotic cells. It has many functions, including the synthesis and transport of proteins. There are two types of endoplasmic reticulum with different structures, as follows:

1) Rough endoplasmic reticulum - its sacs are convoluted but flat, contiguous with the nuclear membrane. Its outer surface is studded with ribosomes, which gives it the rough appearance.

2) Smooth endoplasmic reticulum - its sacs are tube-like structures and they are located near the cell periphery. Sometimes these tubules branch, forming a reticular network wit.

To determine the age of a rock, we depend on that the layers of sedimentation were observable, and separated one from the other.

Having this in mind, we can say that all of the outcrops being able to determine its age, are the ones in which we can appreciate those layers clearly, and not that where layers overlap ones with others.

The part maked with an "X" is the cotyledon. It is the food for the embryo, it's main function is to provide the embryo with nutrients. Therefore, the correct answer is B) provide nutrients for the embryo.

In any experiment, you can define the independent variable (or variables) as any factor that is considered to affect directly the object of study, and the dependent variable is the effect observed.

In this scenario, the professor thinks that the place where the students study affects the result of their exams.

Out of these two variables "the result in the exam" is the observed effect, and thus, the dependent variable and the "location where the student studies" is the factor that affects it, therefore it is the independent variable.

Pulmonary edema and impaired ventilation occur during cardiogenic shock.

Cardiogenic is form of pulmonary edema or pressure that induced  the production of a non-inflammatory type of edema .During cardiogenic shock oxygen-rich blood reaching the brain and other vital organs, your blood pressure drops, and your pulse slows.

Cardiogenic shock and pulmonary edema are life-threatening conditions that should be treated as medical emergencies. The most effected areas left ventricles (LV) dysfunction that leads to pulmonary congestion and systemic hypoperfusion.

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Social inequality is typically thought of as the absence of result equality, but it may also be thought of as the absence of opportunity equality. Race, gender, class, and religion are interrelated identity characteristics that have an impact on many facets of life in the United States.

These social institutions might become more important at any point in a person's life, and everyone is affected by them.

Gender, on the other hand, is an identity that is independent of a person's biological sex. Girls and women are frequently expected to behave nicely, dress in stereotypically feminine ways, and provide for others. Typically, men are expected to be strong, brave, and competitive.

In society, class refers to the division of people into groups based on their socioeconomic circumstances. Based on variables like wealth, occupation, or education, the grouping is stratified. Therefore, it stands to reason that the higher classes are more powerful and influential than the lower classes.

Religion supports and encourages social conflict and inequity. It causes animosity and violence caused by religious differences and aids in persuading the impoverished to accept their position in life.

The shared and hereditary physical characteristics of a group are typically used to identify a person's race, making the definition of race complex.

As a result, it is clear that race, gender, class, and religion are interconnected identity qualities that influence many aspects of American life.

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To answer this we need to remember the pH scale, as lower is the numbe the compound is more acid, mmeanwhile, if the number ishigher wweare talking of a base, it ranges from 10to 14, being l0 the most acid, 7 neutral and 14 strongest base. Also, we must not forget that the pH scale is on a logarithmic scale (base 10) which means that each level is 10 timeshhigherthatn the previous level, so if we have a 13 pH level we are talking of a very strong base, therefore, the correct answer is option e.