Which two atoms form an ionic bond?
A.sodium and bromine
B. two sodium atoms
C. two oxygen atoms
D fluorine and chlorine

Answer:

Many gases exist as diatomic molecules of an element.

Every year the common flu vaccine is designed to protect against three different strains of the influenza virus.

Antibodies are specific proteins that the immune system generates to target and neutralize antigens, such as viruses, toxins, or bacteria. B lymphocytes are the immune cells that generate these antibodies. Once exposed to an antigen, such as the flu virus, the immune system creates a lot of B lymphocytes, each of which can generate an antibody that can neutralize that virus.

This response creates a specific group of B lymphocytes that remain in your body to quickly respond to that virus again.The flu virus can be rapidly modified, so every year scientists update the vaccine to protect against the flu strains that are likely to spread that year.

To raise antibodies against the new forms of the flu virus, your body must generate new B lymphocytes that can generate antibodies that can neutralize the new virus strains. After the vaccine is given, the immune system generates B lymphocytes that can generate new antibodies that can neutralize the specific viruses that the vaccine was designed to target.

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Answer:

Materials

Explanation:

A comparison of the age of the Earth obtained from radioactive dating and the age of the Universe based on galactic Doppler shifts suggests that the Earth was formed after the Universe began.

The meteorites have been isolated in the cold vacuum of space since their formation, so they have seen no significant heating since the time of their formation.

Earth is estimated to be 4.54 billion years old, plus or minus about 50 million years. Scientists have scoured the Earth searching for the oldest rocks to radiometrically date.

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Answer:

An active transport requires energy, a passive transport does not.

That's all! Hope that helps :)

Answer:

true

Explanation:

Geysers result from the heating of groundwater by shallow bodies of magma. They are generally associated with areas that have seen past volcanic activity. ... As steam or gas bubbles begin to form in the conduit, hot water spills from the vent of the geyser, and the pressure is lowered on the water column below.

Answer:

true

Explanation:

I got this question right on edge

Picture attached

Answer:

Nitrifying bacteria

Explanation:

The process labelled B is the conversion of inorganic nitrogen from organic products to atmospheric nitrogen. This process is called denitrification.

Denitrification is a process where nitrate is reduced to molecular nitrogen  through a series of intermediate products. This processed is carried out by bacteria called denitrifying bacteria.

Denitrifying bacteria are an important part of the nitrogen cycle.

Answer:

I'm pretty sure it was a Goldfish

Explanation:

there is a redundancy in the genetic code / a silent mutation has occured

Answer:

dominance and recessiveness

Explanation:

Answer:

When you're very dehydrated, your blood volume can decrease, leading to a drop in blood pressure. When blood pressure drops too low, your organs won't receive the oxygen and nutrients they need. You could potentially go into shock.

The data provided represents a random sample of 12 used cars sold at Maumee Ford-Volvo dealership in the past year, including their age in years and the corresponding selling price in thousands of dollars.

Data refers to raw facts, information, or statistics that are collected, stored, and analyzed to gain insights, make informed decisions, or derive meaningful conclusions. It can be in various forms, such as numbers, text, images, or multimedia files. Data can be categorized as structured or unstructured, depending on its organization and format. Structured data follows a predefined format and is typically found in databases or spreadsheets, while unstructured data lacks a specific format and is commonly found in documents, social media posts, or audiovisual content. Data analysis techniques, such as data mining, data visualization, and statistical analysis, are used to extract valuable insights and patterns from the data. Effective data management, including storage, retrieval, and data quality assurance, is crucial for utilizing data effectively.

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Answer:

dihybrid cross

Explanation:

The decision that was eventually made regarding the dam was that (d) the dam was built in the Hetch Hetchy valley.

When the expanding population of San Francisco, California suggested building a dam in the Hetch Hetchy Valley to offer a reliable water supply, Congress argued between 1908 and 1913 whether to make a water resource available or conserve a wilderness. It was up to Congress to decide what would happen to the Hetch Hetchy Valley, which was protected by the federal government and a part of Yosemite National Park.

The national public is split over whether San Francisco should be allowed to flood the valley and if the valley should be protected from development. The dispute between preservationists and conservationists, who felt that nature should be safeguarded and preserved from human intrusion, was at the centre of the discussion.

Preservationists believed that the environment should be used responsibly to benefit society.

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The Hetch Hetchy dam construction was one of the first debates between the anthropocentric and ecocentric environmental philosophies. What decision was eventually made regarding the dam?

- No dam was constructed; San Francisco had to find another source of fresh water.

- A dam was constructed, then later removed.

- A dam was built in another location that was not a National Park.

- The dam was built in the Hetch Hetchy valley.

The factor that would NOT increase the virulence of a specific microbe is: c. Production of interferons.

Interferons are proteins produced by the host cells as a defense mechanism against microbial infections, rather than a factor that increases a microbe's virulence. They play a crucial role in the body's defense against viruses by inhibiting viral replication and spreading to neighboring cells. Interferons are part of the host's immune response and are not directly associated with the virulence of a microbe. Therefore, their production would not increase the virulence of a specific microbe.

The other options (secretion of endotoxin, presence of a bacterial capsule, and secretion of invasive enzymes) all contribute to an increased virulence in microbes. Hence, the correct answer is Option C.

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Answer:

have a double bond changed from cis to trans.

Explanation:

the double bond changed from cis to trans does something to the acid and helps it expand more overtime

Answer:

1 All the spheres interact with other spheres. For example, rain (hydrosphere) falls from clouds in the atmosphere to the lithosphere and forms streams and rivers that provide drinking water for wildlife and humans as well as water for plant growth (biosphere). ... Flooding rivers wash away soil. 2 As the global human population continues to grow, so too does our impact on the environment. The ingenuity with which our species has harnessed natural resources to fulfill our needs is dazzling.

3 Humans impact the environment through their interactions in many different ways, such as overpopulation, pollution, and the burning of fossil fuels. Human environment interactions have resulted in impacts, such as climate change, soil erosion, and air pollution. 4 All the spheres interact with other spheres. For example, rain (hydrosphere) falls from clouds in the atmosphere to the lithosphere and forms streams and rivers that provide drinking water for wildlife and humans as well as water for plant growth (biosphere). 5 The National Environmental Policy Act of 1969 committed the United States to sustainability, declaring it a national policy “to create and maintain conditions under which humans and nature can exist in productive harmony, that permit fulfilling the social, economic and other requirements of present and future generations.”

Answer:

C. An experiment that contains only one independent variable.

Explanation:

An experiment can ONLY have ONE independent variable.

Answer:

Cellular Respiration Photosynthesis

The entire process occurs in Mitochondria. The entire process occurs in Chloroplasts.

Glucose and oxygen are the reactants of this process. Carbon dioxide, water and light energy are the reactants of this process.

Explanation:

Cellular respiration takes place in the mitochondria of cells. While photosynthesis requires energy and produces food, cellular respiration breaks down food and releases energy. Plants perform both photosynthesis and respiration, while animals can only perform respiration.

Answer: Hydrogen bonds

Explanation:

Answer:

reflected is the answer

Answer:

Its mitochondria

Explanation:

Hope his helps

Answer: B. Lysosomes. They help with cellular respiration as they clear out unwanted materials or waste.Photosynthesis is to chloroplasts as cellular respiration is to mitochondria. Chloroplasts are the part of a plant that contain chlorophyll and make...

hope this helps have a nice night❤️

Explanation:

Answer:

CRUST: In geology, the crust is the outermost solid layer of a rocky planet, dwarf planet, or natural satellite.

MANTLE: A mantle is a layer within a planetary body bounded below by a core and above by a crust.

OUTER CORE: The outer core of the Earth is a plasma layer mostly composed of iron and nickel, located between the mantle and the inner core.

INNER CORE: The inner core of the Earth is the innermost geological layer on the planet. It is primarily a solid sphere with a radius of about 1,220 kilometers (758.1 mi), which is about 20% of the radius of the Earth or 70% of the radius of the Moon.

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Answer:

crust: the surface we stand and walk on and is also thin

Explanation:

mantle: plastic like molten maga

outer core: molten magma which is broken rock and metal hot enough to melt any man made object

inner core: the hottest layer and also a solid ball of compressed iron and is responsible for the earth's magnetic field

Answer:

recorded on a water bottle

Answer:

That is true

Explanation:

Group of cells - Tissue (e.g. epithelial

Group of tissue - Organs (e.g. Stomach)

Group of organs - Organ system (e.g. Circulatory system)

Group of organ systems - Organism (e.g. Human - You =)

Thats a smiley face.

Brainliest?? Please??

The overreaction of the immune system is called cytokine storm. In order words, it is an immune system anomaly caused by the overreaction of the immune system as a result of too many inflammatory signals.

Immune system can be defined as a normal functioning body physiology system which helps the body fight infections and other diseases.

In generally terms, a normal functioning immune system includes the following: Leucocytes, Bone marrow, Lymph system

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