Modern classification systems are based on structural similarities, fossil record and

Answer:

i think ice because it is cold

Explanation:

Answer:

the ocean absorbs big amounts of solar energy and the currents carry the heat around the globe regulating the climate just like how our body's blood and circulatory system regulates our body's temperature... So i think A.

Explanation:

Answer:

Plants are able to use the energy from sunlight to produce sugars, which are a source of energy and matter. On the other hand, an animal cannot make its own food, so it eats plants and other animals.

Explanation:

The molecule of phospholipid contains two fatty acid molecules linked to -OH groups and a nitrogen-containing base bound to the phosphate group.

Phospholipids are a class of lipids whose molecule has a hydrophilic head containing a phosphate group and two hydrophobic tails derived from fatty acids, joined by an alcohol residue.

Thus, it has a strongly non-polar and hydrophobic tail consisting of fatty acid chains and a polar and hydrophilic head comprising a negatively charged phosphate group and a positively charged base. Because of this dual solubility, the phospholipids are called AMPHIPHATIC lipids.

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Answer: It's B because there is more force pulling to the left.

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Chitin and cellulose are the two main forms of structural polysaccharides.

What is Polysaccharide?

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The notation TT denote homozygous tall plant.

The heterozygoty or homozygoty is decided based on the type of allele present in gene. If the gene consist of similar type of allele such as TT or tt .This is regarded as homozygous condition. When  gene consist of different type of allele such as Tt. This is called heterozygotic condition. The phenotype of these gene depend on the dominant allele.

When two heterozygous tall plants are crossed, tall and dwarf plants are produced in a 3:1 phenotypic ratio. The F2 generation is referred to as this.

The genotypes will be as:

1 homozygous tall(TT)

2 heterozygous tall(Tt) and

1 homozygous dwarf(tt)

Hence, phenotype of gene is decided based on the dominant allele.

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A. Morphology of ghost crab and a typical trilobite in terms of their body parts:

Ghost crab is a crustacean and possesses a hard exoskeleton that provides protection against predators. It has five pairs of legs. Its body is divided into two segments: the cephalothorax and the abdomen. The cephalothorax is covered by a carapace that protects the gills and internal organs. The eyes of the ghost crab are located on stalks that allow the crab to have a 360-degree vision.

A trilobite is an extinct arthropod that lived during the Paleozoic era. It has three parts: the head (cephalon), the thorax, and the pygidium. The cephalon was the most developed part of the trilobite and had a pair of compound eyes and antennae. The thorax was composed of a series of segments, each of which had a pair of legs. The pygidium was composed of a series of segments and served as the tail. The trilobite had an exoskeleton that was divided into three parts: the dorsal part, the ventral part, and the pleural part.

In terms of appendages, both ghost crab and trilobite have jointed appendages.

However, there are some differences. The appendages of the ghost crab are specialized for walking and digging. The first two pairs of legs are pincers that are used for capturing prey. The last three pairs of legs are used for walking and burrowing. The appendages of the trilobite are more varied and are specialized for different functions. Some appendages were used for swimming, some for crawling, and some for capturing prey.

Similarities: Both ghost crab and trilobite are arthropods. They have jointed appendages and a hard exoskeleton that provides protection against predators. Both have an anterior cephalothorax and a posterior abdomen.Differences: The body plan of ghost crab is bilateral, while that of trilobite is radial. Ghost crab is a living organism, while trilobite is extinct. Ghost crab has five pairs of legs, while the number of legs in trilobites varied. Trilobite has a more complex morphology with specialized appendages.

B. The reason why the ghost crab goes to the extra work of making two entryways: The crab makes two entryways to its burrow to improve ventilation and prevent the accumulation of toxic gases. The side branch allows fresh air to enter the burrow, while the main entrance allows the crab to exit quickly if it senses danger. The side branch also helps the crab to dispose of waste material. The burrow also serves as a protection against predators and harsh environmental conditions. The burrow provides a stable temperature and humidity that is necessary for the survival of the crab. The long burrow allows the crab to move deep into the sand where it can stay moist and avoid desiccation.

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Answer: it is the ability to be maintained at a certain rate or level

Explanation:

Answer:

The type of tissue that covers the body surface, lines organs and cavities is called epithelial tissue or epithelium. It forms the covering on all internal and external surfaces of your body, lines body cavities and hollow organs, and is the major tissue in glands.

Euglenozoa are monophyletic group of flagellated protists as well as free-living, symbiotic, and parasitic species. According to genetic studies, Euglenozoa are meither plant nor animal despite the suffix zoa. They are somewhat the living dependent of a few of the primal unicellular organisms called eukaryotes. It is also a genus of unicellular flagellate protists where the word "unicellular" means that the organism consists of one cell only that's why they're not considered plant or animals.

Answer:

7 MONTHS?! Bro that's a lot

Explanation:

A chelating agent is required because it attracts and traps metal ions, which are cofactors in enzyme processes. If they were not removed from the solution, they would catalyse processes that would destroy the DNA, similar to DNAase devouring DNA.

Chelation is a sort of bonding that occurs between ions and molecules and metal ions. The creation or existence of two or more distinct coordinate bonds between a polydentate (many bound) ligand and a single central metal atom is required.

Chelants, chelators, chelating agents, and sequestering agents are all names for these ligands. They are often organic molecules, however this is not always the case, as with zinc and its usage as a maintenance treatment to limit copper absorption in persons with Wilson's disease.

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Answer:

Polar bodies serve to eliminate one half of the diploid chromosome set produced by meiotic division in the egg, leaving behind a haploid cell.

Explanation:

Answer:

D. Pathogen

Explanation:

Answer:

D

Explanation:

Only logical and possible solution

If a nerve cell stopped functioning, the cell would stop sending signals to the brain. Thus, the correct option is D.

The functions of a nerve cell are as follows:

So, if nerve cells deal with the electrical impulses and transformation of information and messages from one part of the body to the another, they definitely do not deal with the production of oxygen, division of more cells, and become a different type of cell.

Therefore, stopping sending signals to the brain is an appropriate function of the cell, once a nerve cell stopped functioning. Thus, the correct option for this question is D.

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If red flower color (R) is dominant and white (r) recessive, a plant with white flowers would have a genotype of _rr__ .

A plant with white flowers would have a genotype of rr, as the trait for white flowers is recessive and requires two copies of the recessive allele (r) to be expressed.

In this scenario, a plant with white flowers would have a genotype of rr.

Red flower color (R) is dominant, and white flower color (r) is recessive.
Dominant traits only need one copy of the gene to be expressed, while recessive traits require two copies of the gene.
Since the plant has white flowers, it must have two copies of the recessive gene (r) to express the white color.
Therefore, the genotype for a plant with white flowers is rr.

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Answer:

Usally it's the X gene

Explanation:

The X gene is usally carries most of the information while the Y gene is usally just to tell the body that your a male plus some other smaller details.

Answer:

sex- linked inheritance

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The type of inheritance that involves genes found on the non-autosomal chromosomes is known as sex-linked inheritance. Sex-linked inheritance is also known as sex-linked genetic disorder, sex-linked traits, or X-linked traits.The sex chromosomes determine the gender of an individual.

These are non-autosomal chromosomes. In mammals, the male has one X and one Y chromosome, while the female has two X chromosomes. Some genetic diseases and traits are linked to the X chromosome. This implies that if the genes are carried on the X chromosome, it will have a greater impact on males than females because males only have one X chromosome whereas females have two. Therefore, the condition of an X-linked trait is more prevalent in males than females due to their single X chromosome.

The example of an X-linked trait is hemophilia, a genetic condition in which blood clotting is disrupted. Hemophilia is a recessive X-linked trait, which means that only individuals with two altered genes (homozygous recessive) will exhibit hemophilia. Females are carriers of hemophilia, and they can pass the disease to their male children. However, females may also show symptoms of hemophilia in severe cases, even though this is rare. Overall, the long answer is that X-linked inheritance involves genes found on the non-autosomal chromosomes.

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The Pulmonary Arteries are responsible for carrying low-oxygenated blood from the right ventricle of the heart to the lungs and the Systemic Arteries are responsible for transporting oxygenated blood from the left ventricle of the heart to the rest of the body while the Pulmonary Veins are responsible for carrying oxygenated blood from the lungs to the left atrium of the heart and the Systemic Veins are responsible for carrying low-oxygenated blood from the body to the right atrium of the heart.

Answer:

Calcium is enriched, while they are depleted of carbon.

Explanation:

It should be understood that during the process of volcano eruption, carbon is liberated as the molten magma is coming out , this is due to the heat that is being evolved. And calcium will be the molecules that will make the molten solidified after wind has cooled it down.

That is why they are depleted of carbon, and enriched with calcium.

Answer:D this part of Arizonan use to be much wetter

I took the test and got it right

Answer:is D

Explanation:

Answer:

Water enters the root hair cells by osmosis.

- This happens because soil water has a higher water potential than the cytoplasm of the root hair cell.

Minerals enter by active transport.

Explanation:

The root hair absorbs water from soil through osmosis and minerals through active transport.

Hence, through osmosis root hair absorb water from soil as its concentration is higher in soil than in plant hair cells and minerals concentration is lower in soil than in plant.

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Answer:

Homeostasis

Explanation:

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Phytoplankton and bacteria would be the most affected by dead zones. Dead zones are areas in bodies of water, typically in the ocean, where oxygen levels are extremely low or depleted.

Option (a) is correct.

These low oxygen conditions are primarily caused by excessive nutrient pollution, often from human activities such as agricultural runoff and sewage discharge. Phytoplankton are microscopic plants that are the foundation of the marine food chain. They require oxygen to survive and play a crucial role in producing oxygen through photosynthesis. In dead zones, the lack of oxygen prevents phytoplankton from thriving, leading to a decline in their population and disrupting the entire food chain.

Bacteria are also affected by dead zones as they play a vital role in decomposing organic matter in the water. When oxygen levels are low, bacteria that require oxygen for their metabolic processes struggle to survive, which can further exacerbate the depletion of oxygen in the area.

However, the primary impact in dead zones is typically observed in the lower levels of the marine food chain, affecting organisms like phytoplankton and bacteria.

Therefore, the correct option is (a).

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Complete question is:

Which of the following is most affected as a result of dead zones?

a. Phytoplankton and bacteria

b. Fish near the surface of the ocean

c. Slow-moving crabs  and clams that live along the ocean floor

d. Non of the above

Answer:

yes

Explanation:

The consequences of genetic drift are numerous. It leads to random changes in allele frequencies. Drift causes fixation of alleles through the loss of alleles or genotypes. Drift can lead to the fixation or loss of entire genotypes in clonal (asexual) organisms

The movements known as dorsiflexion and plantar flexion involve moving the foot.

Dorsiflexion and plantar flexion are specific movements that occur at the ankle joint, involving the foot. Dorsiflexion refers to the movement of the foot in which the toes are lifted towards the shin, while plantar flexion involves pointing the foot downward, as in standing on tiptoes.

These movements are controlled by muscles located in the lower leg, such as the tibialis anterior and the gastrocnemius-soleus complex. The tibialis anterior muscle is responsible for dorsiflexion, contracting to lift the foot and toes, while the gastrocnemius and soleus muscles are responsible for plantar flexion, contracting to point the foot downward.

The movements of dorsiflexion and plantar flexion are essential for various activities, including walking, running, jumping, and maintaining balance. They allow for proper positioning of the foot during gait and contribute to the overall movement and stability of the lower extremity.

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The complete question is:

The movements known as dorsiflexion and plantar flexion involve moving the _____.

Answer:

Driving on the beach can contribute to ocean acidification because of the pollution a car's exhaust exerts. One car can't do much to effect the vast ocean, but everyday cars are driven along the shore and they build up from time to time. This can cause alot of pollution to the waters and sea creatures.