An orgamism takes care of its young and produces few offsprings. What type of organism is this?

Answer:

First two rings are thicker while the last two rings are thinner.

Explanation:

Due to the first two years of optimal growing conditions received by the tree, the width of trunk of the tree is thicker but due to drought conditions experienced by the tree during the most recent two years, there is very little increase occur in the width of the trunk because the tree is in stress condition   and for that reason the ring of trunk is thinner as compared to first two years.

Answer:

B. The population size will decrease

Explanation:

Abiotic factors may include temperature, sunlight and water. If conditions are too cold for the organisms living there, they may perish. If the amount of sunlight decreases, plants will not be able to produce enough glucose through photosynthesis. If the amount of water decreases plants may bot have enough water to photosynthesise and animals will have to compete for water.

Temperature, sunlight, and water are abiotic. Organisms may die in frigid environments. Therefore, option (B) is correct answer.

Abiotic and biotic environmental factors fall into the category of population-influencing factors. The non-living physical and chemical components that make up an ecosystem, such as temperature, pH, sunlight, shelter, and day length, are referred to as abiotic variables.

Cold conditions can cause the death of organisms. If sunlight dwindles, photosynthesis cannot produce enough glucose. Lack of water may make it difficult for plants to photosynthesize, forcing animals to compete for it.

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Answer:

The procedure for creating a DNA fingerprint consists of first obtaining a sample of cells, such as skin, hair, or blood cells, which contain DNA. The DNA is extracted from the cells and purified.

There are several steps involved in DNA fingerprinting, including sample collection, DNA extraction, gel electrophoresis, and southern blotting, followed by autoradiography.

DNA fingerprinting has several techniques that are followed to observe the result, and the first step is the DNA sample collection, where the DNA is collected from an individual; DNA extraction, where DNA is extracted from the sample using different chemicals; and restriction fragment length polymorphism. The gel electrophoresis is then performed, followed by southern blotting and hybridization, in which DNA fragments are probed with a labeled DNA probe; at the end, autoradiography is done.

Hence, there are several steps involved in DNA fingerprinting, including sample collection, DNA extraction, gel electrophoresis, and southern blotting, followed by autoradiography.

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Answer:

Genotype = 1TT, 2Tt, 1tt

Ratio = 1 : 2 : 1

Phenotype = 3 tall, 1 short

Ratio = 3 : 1

Explanation:

Draw the Punnett square for the F₁ generation.

 Genotype = 100% Tt

 Phenotype = 100% tall

Next, draw the punnett square for the F₂ generation.

 Genotype = 1TT, 2Tt. 1tt

 Ratio: 1 : 2 : 1

 Phenotype = 3 tall, 1 short

 Ratio = 3 : 1

Answer:

21.81grams

Explanation:

According to the question, an agar medium requires the following ingredients: 21 grams (g) of

agar, 500 mg of dextrose, 3 dg of sodium, and 1 cg of potassium per 1,000 milliliters (mL) of distilled water.

Hence, the dry ingredient contain 21grams (g) of agar, 500milligrams (mg) of dextrose, 3decigrams (dg) of Sodium, and 1centigrams (cg) of pottasium.

We need to convert all units (not in grams (g)) to grams.

1grams = 1000milligrams

500 milligrams = 500/1000

= 0.500grams.

1grams = 10decigrams

3decigrams = 3/10

= 0.3grams

1grams = 100centigrams

1centigrams = 1/100

= 0.01 grams

Therefore, we have 21g, 0.500g, 0.3g, and 0.01g

The total dry weight of the ingredients will be:

21 + 0.500 + 0.3 + 0.01

= 21.81grams

The red shift of light from distant galaxies provides evidence that these galaxies are increasing in distance from the earth. Option D

The red shift of light from distant galaxies is an indication that that these galaxies are moving away from us.

This is because the red shift is caused by the Doppler effect, tells of the  change in the frequency of a wave due to the relative motion of the source and the observer.

In a situation of light from distant galaxies, the source is moving away from us, which causes the light to be red shifted.

The answer above is dependent on the full question below;

The red shift of light from distant galaxies provides evidence that these galaxies are A.) decreasing in size B.) increasing in size C.) decreasing in distance from the earth D.) increasing in distance from the earth

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A membrane is referred to as a thin tissue layer that separates, protects, or connects structures and is denoted as option B.

This is referred to as a biological layer which comprises of lipids and other types of compounds which are found in cells and it is usually a thin layer which separates the internal environment from the external areas.

This ensures that the cell is protected as it prevents pathogens and other harmful substances from entering. It also helps to connect different structures together which is therefore the reason why option B was chosen.

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Answer:

4/16

Explanation:

It is given that the alleles of the first locus = A dominant and recessive a

The allele of the second locus = B dominant and the recessive b.

Now if fish with AABB mates with the aabb fishes, then to tell the proportion of the F2 fish which shows either the dominant phenotype at the \($\text{first locus}$\) and also a recessive phenotype at the \($\text{second locus}$\).

So for this, the recessive phenotype at the \($\text{first locus}$\) as well as the recessive phenotype at the \($\text{second locus}$\) is in the ratio of 4/16.

Answer:

The correct answer is - C. Spring tides

Explanation:

Spring tides are the highest tides that made in the case when the sun, earth, and the moon all three come in a line. This takes place before the full moon or new moon. The tides occur due to the gravitational pull of the sun and the moon.

The spring tides are the highest tides whereas neap tides are the smallest tides caused by the pull of the sun and moon together on earth.

Mutations are rare and can occur in body cells.

Mutations are changes in the DNA sequence of an organism.

They can occur in both body cells and reproductive cells, meaning they can be passed down from generation to generation.

Mutations can be beneficial, harmful, or have no effect on an organism's fitness.

While some mutations can lead to diseases, others can help an organism adapt to its environment or improve its chances of survival.

However, most mutations are rare and do not have a significant impact on the organism.

Therefore, it is not accurate to say that mutations are always harmful.

Germline mutations specifically occur in reproductive cells and can be passed down to offspring.

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The long, bushy tail of the raccoon may be a selective advantage for this species because the bushy tail helps keep the face warm during a snowstorm (Option d). In addition, it may serve as camouflage and also may act to communicate with other members of the population.

An evolutionary selective advantage is a feature in a species that confer an advantage to survive and reproduce in a particular environmental condition, which may be associated such as in this case to the tail in raccoons.

Therefore, with this data, we can see that an evolutionary selective advantage is any phenotypic feature that enhances the survival and or reproductive rate of individuals in a population or species.

Complete question:

The opossum is a new arrival in southern Ontario. Its niche is similar to that of the raccoon. An opossum has a long, bare, rat-like tail. A raccoon has a long, bushy tail. How is this a selective advantage for the raccoon?

selective advantage only applies to populations

the opossum  tail can grab onto a tree for balance

tail fur does not have an impact on survival

the bushy tail helps keep the face warm during a snowstorm

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Answer:

It means that unavoided modification has accumulated on the original version.

Explanation:

When an engineer at a transmission station reports receiving noise, it means that they have detected unwanted and disruptive signals or interference in the transmission system. This noise can manifest as electrical disturbances, random signals, or other forms of electromagnetic interference that disrupt the quality and clarity of the transmitted information or data.

Receiving noise in a transmission system can have various causes, including environmental factors, electrical equipment malfunctions, electromagnetic interference from nearby sources, or signal degradation during transmission. It is essential for the engineer to identify and address the source of the noise to ensure the integrity and reliability of the transmitted signals. This may involve troubleshooting the equipment, adjusting signal filters, implementing shielding measures, or improving the overall transmission system design to minimize noise and maintain signal quality.

So, I think the bottom left is the right one.

Answer:

PAIN:

Nociceptive Pain: Typically the result of tissue injury.

Inflammatory Pain: An abnormal inflammation caused by an inappropriate response by the body's immune system.

Neuropathic Pain: Pain caused by nerve irritation.

Functional Pain: Pain without obvious origin, but can cause pain.

PRESSURE:

Absolute pressure: The clearest reference pressure is the pressure zero, which exists in the air-free space of the universe.

Atmospheric pressure.

Differential pressure.

Overpressure (gauge pressure).

Answer:

Positive

Explanation:

Protons have a positive charge

Neutrons have no charge

Electrons have a negative charge

There more protons than electrons so the overall charge is positive

True, A member of the 40 genera of fragrant blooming plants in the Rosaceae family, which have their origins in Europe, is the mignonette, and reseda data.

In the family Resedaceae, the genus Mignonette contains roughly 40 species of herbs and shrubs with aromatic flowers. They were widely imported abroad despite being native to portions of Asia, North Africa, and Europe. Many of the species are now common garden flowers.

Mignonette is a 'floppy', spreading biennial with no hair. It typically measures 12 inches tall, although it may also be much larger or higher. There might be a leaf rosette at the base. The leaves have a pinnate look, are deeply cut, and have wavy margins.

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There would be more biological niches in a region with a variety of microclimates, enabling a greater range of creatures to find acceptable habitats. Humid heat is more dangerous than dry heat.

The wind, temperature, relative humidity, precipitation, and atmospheric pressure all have an impact on the weather, which in turn has an impact on the microclimate. The relationship between wind and temperature is obvious: in areas with low winds, it is colder, while in areas with stronger winds, it is warmer.

How drought is caused by climate change: Evaporation is accelerated by warmer temperatures, which decreases surface water and dries out soils and vegetation. Because of this, dry spells last longer than they would in cooler conditions. The timing of when water is available is also changing due to climate change.

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The entry in the diary describes the sensation of adventure, amazement, and difficulties experienced by an explorer traversing America without access to precise charts, depending instead on instinct, cunning, and inadequate maps.

We now know that Columbus was not the first, but rather one of the last, explorers to reach the Americas. 500 years before Christopher Columbus, Leif Eriksson and his valiant group of Vikings arrived in North America and established a settlement.

The journey to India and encounters with various peoples along the shores of Africa and India are described in the paper. It talks about captives, illnesses, plants and animals, titles and occupations, weapons of battle, and nourishment.

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The claim states that the weather on an island will continue to be most like the weather where orangutans live. To evaluate this claim, we need to consider several factors:

Without specific details about the island in question, it is difficult to make a definitive assessment. However, if the island is located within or near the equatorial belt and shares similar climatic conditions with Southeast Asian rainforests, it is more likely to have weather resembling that of orangutan habitats.

It is important to note that climate can vary even within a specific region, so a thorough analysis of the island's climatic data would be necessary to make an accurate comparison. Additionally, factors such as changes in global climate patterns over time may also impact the accuracy of this claim.

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Answer:

adaptations (based on natural selection)

Answer:

Explanation:

Because each cell divides independently of the others, a root tip contains cells at different phases of the cell cycle.

hope this helps

Answer:

true

Explanation:

amino acids are complex macromolecoules therefore it would alter the genetic structure of the compound thus changing its dna

Durante la hibernación el metabolismo es lento a fin de MINIMIZAR el gasto de energía. Las adaptaciones asociadas a la hibernación son la disminución de la temperatura corporal y la frecuencia respiratoria.

La hibernación es un proceso adaptativo desarrollado por ciertos animales a fin de transitar los periodos climáticos menos favorables.

Durante la hibernación el metabolismo del animal se vuelve más lento a fin de minimizar el gasto energético durante la estación del año menos favorable.

Las adaptaciones evolutivas asociadas con la hibernación son la disminución de la temperatura corporal, frecuencia respiratoria y la frecuencia cardíaca.

Algunos ejemplos de animales que hibernan son el oso polar, ranas, murciélagos, etc.

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The circulatory system, also known as the cardiovascular system.

The heart is a muscular organ located in the chest. It acts as a pump, continuously contracting and relaxing to circulate blood throughout the body. The heart has four chambers: two atria (left and right) and two ventricles (left and right).

Veins  transport deoxygenated blood back to the heart from the body tissues. Arteries carry oxygenated blood away from the heart to various organs and tissues. Capillaries  the exchange of oxygen, nutrients, and waste products between the blood and surrounding tissues.

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Answer:

Where is the picture?

Explanation:

Gas moves freely and vibrates at great speeds. Liquid moves, vibrates, and slides past one another. Although solid objects vibrate (jiggle), they often do not move.

The molecules in the solid vibrate stationary. Liquid Particle in a liquid flow as well as glide across one another, but they tend to settle near the bottom of the vessel. Although the attraction interactions among particles were also capable of holding a certain volume, they are insufficient to prevent molecules from sliding on top of one another.

A solid seems to have a distinct volume and shape. Despite taking on the shape of its container, liquids have defined volumes. Both a volume and a defined shape are absent from a gas. Although the particles of plasma were extremely far apart, unlike those of a gas, which are electrically isolated, plasma contains a charge.

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Answer:

C- South America. Because South America is mostly rain forest and forests in the northern and mid section of it.

Explanation:

In complete dominance, the presence of at least one dominant allele in the genotype is enougth to express the dominant phenotype. 100% of the offspring will have mutated creased ear, while 0% of the will have normal standing ear.

Complete dominance is the inheritance pattern in which the dominant allele completely masks the recessive allele.

This interaction between alleles is observed in individuals who are heterozygous for a particular gene. They carry both alleles but only express the dominant trait. The dominant allele is hiding the expression of the recessive allele.

In the exposed example,

Cross: a cat that is heterozygous with a cat that is homozygous for the fold allele.

Parentals) Ee   x   EE

Gametes) E   e     E   E

Punnett square)   E    e

                     E    EE    Ee

                     E    EE    Ee

F1) 50% of the progeny is expected to be heterozygous

     50% of the progeny is expected to be homozygous dominant

     100% of the progeny is expected to have ears with a crease.

The expected percents of offspring that will have each characteristic are,

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