An element has a metallic-gray appearance. It also has the properties of both a metal and a nonmetal. In which section of the table would you find this element?

Select one:

3

4

1

2

Answer:

ions.....................

Answer:

ions? t.b.h i have no idea

Answer: Look up the answers to a Periodiperiodic table

Explanation: I will link pictures

Answer: Food

Explanation:

The rat smells the food or sees the food it goes towards the food to eat it.

Answer:

the answer is B

Explanation:

this is because viruses need to enter a host cell to start reproduce. they usually use your cell to create "virus making factories".

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no problems

Answer: C. The lower mantle experiences more pressure than oceanic crust does.

Explanation:

Answer:

39

Explanation:

Relative mass does not need to be calculated as it is listed on the periodic table. Potassium's relative atomic mass is around 39.

Answer:

They can find patterns and use them to predict what type of weather might occur today, tomorrow, or anytime.

Explanation:

These types of patterns are weather patterns.

Answer:

1. Reuse things like cups, towels, cloths, etc.

2. Plant a tree. (Trees and other organic energy sources are traditional sources of renewable energy.)

3. When using natural resources, only use the necessary amount so you're not wasting any.

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Answer:

d) 0.250 mol

Explanation:

15.0 grams of sio2 have 1/4 moles.

The Answer is 0.001156.

c. The atom becomes positively charged

if the electrons are removed it means theres no longer a negative charge to balance the positive charge of the protons in the atom

Answer:

1. The stronger the intermolecular forces are, the more energy is required, so the higher the melting point is. Many intermolecular forces depend on how strongly atoms in the molecule attract electrons — or their electronegativity. ... Hydrogen bonds are among the strongest intermolecular forces.

Answer:

Explanation: interpreting  a skelton means stopping what its doing. While interpreting a fossil causes it to be taken out of its decaying form

Answer:

19 protons, 19 electrons, and 3 neutrons

Explanation:

the atomic number is 19 so the protons are the same, 19, and the electrons are the same as the proton, because protons are positive and electrons are negative so they have to balance out and the neutrons ➗ mass number by the atomic number.

Answer:

Both:

-They are both made up of cells embedded in an extracellular matrix. It is the nature of the matrix that defines the properties of these connective tissues.

Cartilage:

-Cartilage is thin, avascular, flexible and resistant to compressive forces.

-Cartilages are soft and flexible components present in ear, nose and joints.

Bone marrow:

-Bone is highly vascularised, and its calcified matrix makes it very strong.

-Bones are hard and tough which gives the structural framework of the skeleton in the body.

The properties of all of these material vary from each other. Paper, cardboard and plastic are insulators and metals and conductors. Each of them has different physical properties.

The physical properties of a substance include properties which changes its physical structure, size, shape, phase etc. Solubility, conductivity, resistance etc. are also physical properties.

Here, paper, cupboard and plastic are insulators and they does not conduct electricity. Whereas, metals are very good conductors and they have wide range of applications in optoelectronic devices.

Each of these materials has different melting temperature and different uses. Their density also vary significantly. The paper is the less dense one here and metals are denser.

The applications of these materials are based on their physical properties.

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Answer:

C

Explanation:

More precipitation occurs near the equator because it is a tropical area. When its hot, there will always be more precipitation.

Answer:

Explanation:

There are different types of asexual reproduction:

Binary Fission

Budding

Fragmentation

Vegetative Propagation

Sporogenesis

Binary Fission

The term “fission” means “to divide”. During binary fission, the parent cell divides into two cells. The cell division patterns vary in different organisms, i.e., some are directional while others are non-directional. Amoeba and euglena exhibit binary fission.

It is one of the simplest and uncomplicated methods of asexual reproduction. The parent cell divides into two, each daughter cell carrying a nucleus of its own that is genetically identical to the parent. The cytoplasm also divides leading to two equal-sized daughter cells. The process repeats itself and the daughter cells grow and further divide.

Fragmentation

Fragmentation is another mode of asexual reproduction exhibited by organisms such as spirogyra, planaria etc. The parent body divides into several fragments and each fragment develops into a new organism.

Regeneration

Regeneration is the power of growing a new organism from the lost body part. For eg., when a lizard loses its tail, a new tail grows. This is because the specialized cells present in the organism can differentiate and grow into a new individual. Organisms like hydra and planaria exhibit regeneration.

Budding

Budding is the process of producing an individual through the buds that develop on the parent body. Hydra is an organism that reproduces by budding. The bud derives nutrition and shelter from the parent organism and detaches once it is fully grown.

Vegetative Propagation

Asexual reproduction in plants occurs through their vegetative parts such as leaves, roots, stems, and buds. This is called vegetative propagation. For example, potato tubers, runners/stolon, onion bulbs, etc., all reproduce through vegetative propagation.

Spore Formation

Spore formation is another means of asexual reproduction. During unfavourable conditions, the organism develops sac-like structures called sporangium that contain spores. When the conditions are favourable, the sporangium burst opens and spores are released that germinate to give rise to new organisms.

In asexual reproduction, a single cell is divided to produce offspring. Simple cell-by-cell division is not possible in multicellular organisms. Most of the multicellular organisms have a complex body design. They have a higher level of organization like tissues, organs and organ systems. Thus, they need a special mode for reproduction.

Advantages of Asexual Reproduction

Following are the advantages of asexual reproduction:

Mates are not required.

The process of reproduction is rapid.

An enormous number of organisms can be produced in very less time.

Positive genetic influences pass on to successive generations.

It occurs in various environments.

Disadvantages of Asexual Reproduction

The major disadvantages of asexual reproduction are:

Lack of diversity. Since the offsprings are genetically identical to the parent they are more susceptible to the same diseases and nutrient deficiencies as the parent. All the negative mutations persist for generations.

Since only one organism is involved, the diversity among the organisms is limited.

They are unable to adapt to the changing environment.

A single change in the environment would eliminate the entire species.

Asexual Reproduction Examples

Following are the examples of asexual reproduction:

Bacterium undergoes binary fission in which the cell divides into two along with the nucleus.

Blackworms or mud worms reproduce through fragmentation.

Hydras reproduce through budding.

Organisms such as copperheads undergo parthenogenesis.

Sugarcane can be grown through vegetative propagation.

Answer:

Explanation: The merging of male and female gametes during fertilization and the presence of two parents constitute sexual reproduction. The offspring differ from each other and their parents because they receive a variety of genes from both parents. The benefits of sexual reproduction include the offspring's ability to adapt to new surroundings due to genetic variation, which gives the species a survival advantage.

It is less likely that the disease will impact every person in a group. There is only one parent in asexual reproduction. The children are exact replicas of their parents and one another. Asexual reproduction has several benefits, including When conditions are favourable, the population can grow quickly because only one parent is required.

E. coli and other bacteria reproduce asexually. This has the benefit of enabling them to quickly create large numbers of bacteria. The identical genetic makeup of every microbe is a drawback. Every one of the germs would perish if an antibiotic were applied. There would be no people left. Random mutation is the sole process that can add variation to the population.

The majority of animals, including rabbits, reproduce sexually. Because the alleles that the mother and father each possess are combined in the offspring, sexual reproduction brings variety to the species. The fact that sexual reproduction requires more time than asexual reproduction is a drawback. Before the development of the progeny, a mate must be located and the egg fertilized with sperm. However, the benefits of adding genetic diversity to the species overcome this drawback. Given the diversity in the population, it's possible that not every rabbit would be afflicted if a disease struck the rabbit population. It follows that some people would live and be able to reproduce and have more children.

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Answer:

Maximum velocity is reached when you stop accelerating, because this is when you can't gain anymore speed, i.e. acceleration is zero. In other words the derivative of velocity is equal to zero. However, zero acceleration can also result in minimum velocity because you can't lose any more speed.

Explanation:

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Answer: the first paragraph is rain forest biome and the 2nd one is arctic tundra biome and finally the last paragraph is ocean or marine biome

Explanation:

rain forests have warm temperatures and include alot of animals and plants , artctic tundra biome includes cold temperatures ice stuff and all that and ocean or marine biome is pretty much just the ocean with seals , whales and marine life yk.

Answer:

it is a poem

Explanation:

Answer:

4 all of the choices. the rest of the answers are correct so it's all of the choices

Answer:

4 because CoCO2 is in a degree And it’s all four different elements

Answer:

+6.

Explanation:

So, a chromium atom here has an oxidation number of +6.

Answer:

Most things, if not all, are dependent on the Sun. The Sun causes things to grow, which causes animals to thrive, which causes other animals to thrive, which causes a balanced ecosystem, meaning a balanced food chain.

Explanation:

Answer:

A long range forecast is this answer

Answer:

its c

Explanation:

solvent is the part of the solution that is in the greater quantity, and solute is the smaller portion of the solution

hope this helps :)

Answer:

C i think i don't really know

Answer:

chromosomes line up in the middle of the cell