Can you help me with this please it’s science

Answer:

The above answer is correct. The answer is That the outer core is liquid.

The Earth's magnetic field reveals the structure of the Earth's layers and the outer core is liquid. Thus, the correct option for this question is B.

The principle of earth's magnetic field states the production of attraction by the motion of molten iron in Earth's core, the magnetic field protects our planet from cosmic radiation and from the charged particles emitted by our Sun. It also provides the basis for navigation with a compass.

The magnetosphere is the region that is located above the ionosphere that is defined by the extent of Earth's magnetic field in space. The Earth is composed of layers having different chemical compositions and different physical properties.

The crust of the Earth has some permanent magnetization, and the Earth's core generates its own magnetic field, sustaining the main part of the field we measure at the surface.

Therefore, the Earth's magnetic field reveals the structure of the Earth's layers and the outer core is liquid. Thus, the correct option for this question is B.

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Answer:

A.  Duration of individual action potentials in each neuron

Explanation:

Answer:

C

Explanation:

Answer:

Birds have a two part stomach, a glandular portion known as the proventriculus and a muscular portion known as the gizzard. Hydrochloric acid, mucus and a digestive enzyme, pepsin, are secreted by specialized cells in the proventriculus and starts the process of breaking down the structure of the food material.

Answer:

he Axolotl, or the Ambystoma mexicanum, is located in the class amphibia and in the family of Ambystomatidae. They are a critically endangered species that resides in Mexico. More specifically, the walking fish is native only to  Lake Xochimilco and Lake Chalco in central Mexico. These unique fish have many attributes that makes it different from other amphibians and fish found in lakes.

Axolotls are 9 inch "walking fish" that have the amazing ability to regenerate limbs. They can regenerate any lost limb, including their head. This salamander has a soft bodies with small "horns" sprouting from the sides of their head. These horns are actually gills, meaning that instead of having their gills located inside of their pharynx the frills are set on the sides of their head.  

The spots commonly found on an axolotl are not unusual, it's part of an extremely advanced system called the lateral line system. This system consists of electroreceptive ampullary organs and mechanoreceptive neuromasts organized into lines across the creature's body. This system is connected to the nervous system, and it allows the axolotl to sense movement and vibrations in the water.

This can get you started, I didn't want to make it too easy on you! :) It has I believe 126 words, I hope you find it useful!

And pls mark brainlest!

Answer:

Explanation:

Structures that have lost their use through evolution are called vestigial structures. They provide evidence for evolution because they suggest that an organism changed from using the structure to not using the structure, or using it for a different purpose.

Answer:

Explanation:no body knows

Answer:

D

Explanation:

the nuclei of the skin cells of the frog contain all DNA needed to clone the frog

The branch of science which deals with the study of a living being is called biology.

The correct option is D

The branch of biology which deals with living things along with technology is called biotechnology. In the question, the genes from the Skin cell of the frog are injected into the egg cell.

This experiment is done because scientist wants to inject the skin cell and pass this character to the new frog without fertilization.

Hence the correct option is D that is The nuclei of the skin cells of the frog contain all the DNA needed to clone the  frog.

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Answer:

False

Explanation:

Two ATP molecules are required to start glycolysis (from glucose), and 4 are generated by substrate-level phosphorylation. An additional 2 NADH molecules are generated, which can be used to generate another 4–6 ATP molecules through the electron transport chain in the mitochondria.

Answer:

The answer is C

Explanation:

Among the following is not a risk factor for metabolic syndrome is - C. Low LDL cholesterol.

A metabolic syndrome is a group of conditions that can result in cardiovascular diseases such as heart disease, diabetes, stroke, and other health problems. Metabolic syndrome is classified only if a person has three or more of the following risk factors:

Thus, the correct answer is - C. Low LDL cholesterol

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Answer:

Please find the description of the steps involved in DNA replication below. The terms listed in the question are written in BOLD.

Explanation:

DNA replication is the process by which DNA molecule is duplicated in the genome to produce two identical copies. DNA replication, which must occur prior to any cell division, involves the following steps:

- An enzyme called DNA HELICASE unwinds the double strand of DNA into a Y-shaped replication fork.

- Another enzyme called DNA POLYMERASE attaches to the single strand of DNA to add nucleotides to the growing DNA molecule.

- An enzyme called DNA PRIMASE adds a short nucleotide sequence called PRIMER, which serves as foundation for DNA polymerase to act upon.

- The DNA polymerase adds nucleotides based on complementary base pairing rule i.e. A-T, G-C.

Nucleus Helicase

Complementary strand

DNA Polymerase Ligase

Okasaki Fragments 5’ to 3’ Leading strand

Lagging strand

Answer:

Soil erosion.

Explanation:

No-till plowing can be defined as a farming method or technique which typically involves planting crops (seedlings) without tilling the soil rather the farmer would only open a narrow or very shallow trench of sufficient depth and width to cover up the seedlings. Thus, the no-till plowing makes crop residues to be left on the soil and by extension preventing soil erosion through the absorption of water by the crop residues.

Hence, by leaving crop roots in the ground and stalks on the surface, no-till plowing helps prevent soil erosion.

Additionally, the water retention ability of no-till plowing is usually a boon to farmers because it slows down evaporation and serves as a good protection for drought-stricken environments.

Answer:

i think weeds

Explanation:

plz correct me if im wrong

Answer: The big blue ball is the NUCLEUS, The things with The Rib looking things, Are the MITOCHONDRIA, The green circles are called the APICOPLAST, The outside is called the RBC, You might have to search the rest up because i don't know the rest!

Explanation:

Answer: theories, experiments, research basics, scientific laws, and fictions

Explanation:

Scientific theories are the explanation for a scientific phenomenon. It is verified by experimental trials. These can be obtained in text books.

Experiments are the methodologies which are followed to verify a scientific fact or theory. These can also be available in text books.

Research basics includes the steps that are to be followed while conducting a research and ethics oriented to research. These can also be included in text books.

Scientific laws are the description about a scientific phenomenon without explaining how did the phenomenon occurred. These can also be included in the text books.

Fictions are the stories or self constructed narrations which can be or cannot be based on true incidences. These can be available in text books.

Hypothesis is a supposed explanation of a particular phenomenon and it can be proved by using scientific methodology. It cannot be found in the text books as it is the original piece of research to be conducted and can be available as a part of research synopsis.

Answer:

A

Explanation:

A mismatch occurs when organisms that were well adapted to one environment cannot evolve rapidly enough to adapt to new changes in the environment. Hence, a trait that once confers an adaptive advantage becomes inimical due to the changes in the environment.

In order words, a mismatch occurs when a once adaptive trait becomes maladaptive or no longer confers an adaptive advantage to organisms due to a change in the environment but still persists in organisms.

For example, an organism with a body adapted to aquatic habitat suddenly finds itself in a terrestrial habitat due to climate change. The body that use to be adaptive to the environment would suddenly become maladaptive to the new environment.

The correct option is, therefore, A.

Answer:

The poet's attitude toward the poem's speaker, reader, and subject matter, as interpreted by the reader. Often described as a “mood” that pervades the experience of reading the poem, it is created by the poem's vocabulary, metrical regularity or irregularity, syntax, use of figurative language, and rhyme.

Explanation:

Answer:

B. DR, Dr, Rd, dr

Explanation:

This question involves two genes. Alleles D and R are dominant over alleles d and r. These two genes obey the law of independent assortment as proposed by Gregor Mendel.

Based on the question, a genotype RrDd will produce the following combination of gametes following the process of meiosis:

DR, Dr, dR, dr

Answer:

I believe the human race is capable of great things.

Explanation:

If the wolves had not been introduced, the population of deers will increase which would cause the deers offspring to increase in ecosystem.

An ecosystem consists of all the organisms and the physical environment with which they interact. These biotic and abiotic components are linked together through nutrient cycles and energy flows.

An ecosystem is a geographic area where plants, animals, and other organisms, as well as weather and landscape, work together to form a bubble of life. Ecosystems contain biotic or living, parts, as well as abiotic factors.

Healthy ecosystems clean our water, purify our air, maintain our soil, regulate the climate, recycle nutrients and provide us with food. They provide raw materials and resources for medicines and other purposes.

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Answer:

The systems affected by cystic fibrosis are the respiratory, gastrointestinal, reproductive, and integumentary.

Cystic fibrosis is a condition that damages organs in the gastrointestinal system or digestive system and the respiratory system. It can lead to damages in:

This condition is caused by the accumulation of mucus on organs due to a defective gene. This accumulation leads to negative effects in these systems but also in other systems such as:

Thus, the  systems affected are the respiratory, gastrointestinal, reproductive, and integumentary; while others such as the lymphatic or neurological are not affected.

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Answer:

biotic duh!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Answer:

By storing solar energy, transporting heat and moisture all over the world, and driving weather systems, the ocean has an impact on weather and climate. Ocean water evaporates continually, raising the warmth and humidity of the surrounding air, resulting in rain and storms delivered by trade winds.

OAmalOHopeO

Answer:

The answer is D.

Explanation:

Photosynthesis is the process through which plants utilize water and carbon dioxide to form glucose and oxygen.

Answer: B The trait is determined by a recessive allele