Which element in period 3 on the periodic table is a metalloid?

Answers

Answer 1

magnesium (mg) aluminum (al) silicon (si) sulfur (s)

Answer 2

Answer:

C.) Silicon is a metalloid

Explanation:

edg 2021


Related Questions

Which of the following is an example of genetic engineering?

The sweetest honeydew melons are selected and the seeds extracted and planted for next year’s crop.

The strongest animals in a population survive and reproduce.

An exact replica of a frog is created from a body cell.

A gene is introduced into salmon to make them grow twice as fast.

Answers

That is a very tuff question

the lowest layer odnbf​

Answers

Answer: ;-; wut? i- my brain cells you just killed my brain cells in 1 sec i-

Explanation:

Lowest layer of wat??

distinguish between a mixture and solution

Answers

Answer:

In mixtures substances are mixed. While in Solutions substances are dissolved.

Explanation:

in mixtures substances arent typically dissolved they are combined or mixed. in a solution those substances dissolve.

In a mixture, substances are generally just mixed and are not completely dissolved. In a solution, substances are dissolved completely and they cannot be filtered out

It is possible that a recessive trait in a survey such as this one may have a greater total number than its dominant counterpart. Explain how that might happen in an investigation like this.

Answers

Answer:

No,really. It is possible that a recessive trait in a survey such as this one may have a greater total number than its dominant counterpart...... Because all of the offspring can in herit the came recessive trait.

what is the process of photosythesis

Answers

Answer:

H2O+CO2=C6H12O6+O2+energy

Explanation:

H2O= Water

CO2= Carbon dioxide

C6H12O6= Glucose

O2= Oxygen

a man is twice as old as his son.Five years ago the ratio of their ages was 9:4.Find the sum of their ages​

Answers

Answer:

75years

Explanation:

Let the Father's age be represented by 2x

Let the Son's age be represented by x

Five years ago;

Man's age will be = 2x - 5

Son's age will be = x - 5

If the ratio of their ages five years ago was 9:4, then;

2x - 5/x-5 = 9/4

4(2x - 5) = 9(x - 5)

8x - 20 = 9x - 45

- Collect like terms

-20 + 45 = 9x - 8x

25 = x

Hence, the son's age = 25 years

If x = 25, the father's age (2x) will be 2 × 25 = 50years

The sum of their ages will be = 25years + 50years = 75years

11. Jamal ate a meal of rice before seeing his doctor. Rice is made of mostly starch molecules. Jamal has been feeling tired a lot, so his doctor gave him a test that found that Jamal's cells contained normal levels of oxygen and low levels of glucose. Does this explain why Jamal has been feeling tired.

Answers

You need glucose with out it you’ll be ..

How does a continental plate demonstrate Newton's law of inertia

Answers

Answer:

When a plate bumps up against another plate, it puts the other plate then in motion.

Explanation:

For every action there is an equal and opposite reaction.

Most of the animals in existence today had their origins during the:

Answers

Answer: During the Cambrian Explosion of Animal Life

What is the importance of cell membranes to supporting life?

Answers

Answer:

The plasma membrane, or the cell membrane, provides protection for a cell. It also provides a fixed environment inside the cell. And that membrane has several different functions. One is to transport nutrients into the cell and also to transport toxic substances out of the cell. I hope this helps you :)

How do the organization of the egg and the chicken leg compare

Answers

Explanation:

eggs and chicken are both high-quality animal protein sources with a high biological value the main factors are breeding the same as at the chicken in particular skin chicken breast is as much more protein dense food where as eggs are more of a complete food containing alot of fat

If you are neither relaxing or contracting a specific muscle, what is happening to the amount of ATP that is available in that muscle cell?

A. It is staying the same or increasing.
B. It is decreasing rapidly.

Answers

Answer:

A. It is staying the same or increasing.

Explanation:

The body tissues and cells require energy in the form of ATP to work, grow and move. It is produced from cellular processes like ETC, cellular respiration and other metabolic processes.

The amount of ATP in the cell:

Option A. It stays the same or increases.

The function of ATP can be explained as:

Muscle contraction and relaxation requires a certain amount of energy in the form of ATP. The insufficient amount will not be able to support the relaxation or the contraction of the muscle tissues.

In the condition where there is no contraction or relaxation the amount of energy will be the same or increased as it is not used in the process and remains constant.

Therefore, it remains the same or increases.

To learn more about muscles and ATP follow the link:

https://brainly.com/question/858546

9) The process of photosynthesis uses the carbon in
carbon dioxide molecules as building blocks for
which type of molecule? (Think (H1706)

Answers

Answer:

Explanation:

carbohydrate molecules -

Photosynthesis uses carbon dioxide and water to assemble carbohydrate molecules (usually glucose) and releases oxygen into the air.

9. Use the diagram to answer the question below.
cell chloroplast
wall
cell
membrane vacuole nucleus
un
DO
The cell membrane plays an essential role in the life of the cell. How does the cell membrane
help maintain the health of the cell in the figure above?

Answers

Answer:

It provides protection for the cell it also provides a fixed environment

Explanation:

17
Use the figure below to answer the following question:
Atmosphere
nitrogen, N,
Plants
חס
As
A
Dear
Wat
urine and reces
B
E
Dentellying
bacteria
Decomposers
rogering
bacteria
hin
plants
Nitrates
NO
D
Nying
с
F
Nitrog-tong
bacteriano
bacteria
Amon NH
In the part labeled A bacteria is converting nitrates into atmospheric nitrogen. What is
this process called?
O Ammonification
O Denitrification
O Nitrification
Assimilation

Answers

I don’t know if you are in the middle of the game or something like for a

Mountain goats have split hooves for better grip on steepy mountains. What kind of adaptation is this?
A) Structural
B) Physiological
C) Biochemical
D) Ecological
WILL MARK AS BRILLIANT!!!

Answers

B) Physiological because C is relating to the inside of the organism, A is relating to the forming part of a building or another item and D is reacting to their physical surroundings, so the only other answer would have to be B because in physiological in animals and humans alike, they change something of their physical self's to attain to the environment around them.

3. The oxidation of organic compounds to extract energy from chemical
bonds is called?

Answers

Cellular respiration

The gustatory system is the sensory system that deals with smell. True or False

Answers

Answer:

False gustatory system is the system or sense of taste

which mosquito cause malaria?​

Answers

Answer:

Anopheles mosquitoes

Explanation:

Malaria is a common disease characterized by symptoms that include: headache, fever, nausea etc. Malaria disease is caused by a pathogen called PLASMODIUM, which is a protozoan parasite. However, these plasmodium parasites are carried to induce their damage by vectors called MOSQUITOES.

Not all genus of mosquitoes carry this pathogen but specifically ANOPHELES MOSQUITOES. The female species of an Anopheles mosquito carries plasmodium when they feed (suck blood) of an infected person. They then inject it into the bloodstream of another victim they suck from.

A balloon is filled with helium in an airplane, where the air pressure is 81 kPa. The filled balloon has volume of 4.2 L. When the plane lands, the cabin is depressurized to the outside air pressure, which is 94 kPa. If the temperature of the balloon remains the same, what is the new volume of the balloon?

Answers

Answer:

3.62L

Explanation:

Using Boyle's law equation i.e

P1V1 = P2V2

Where;

P1 = initial pressure

V1 = initial volume

P2 = final pressure

V2 = final volume

According to information provided in this question, P1 = 81kPa, P2 = 94kPa, V1 = 4.2L, V2 = ?

P1V1 = P2V2

81 × 4.2 = 94 × V2

340.2 = 94V2

V2 = 340.2/94

V2 = 3.619

V2 = 3.62L

Which compound is inorganic?

Answers

Answer:

C.

I think it is C

The answer is B. Inorganic means it doesn’t contain carbon.

the way that genetic information is coded in DNA is-

Answers

Answer:

with bases

Explanation:

Genetic information is coded in DNA by means of four bases: two purines (adenine and guanine) and two pyrimidines (thymine and cystosine). Each adjacent sequence of three bases (a codon) determines the insertion of a specific amino acid. In RNA, uracil replaces thymine.

hope this helps, pls mark brainliest :D

Please help me and hurry

Answers

Answer:

5

Explanation:

-5 0 5 10

---------------------------------------------------------

start at 0, move right 3, so ur at 3. then move left 4, so its -1. Then 6 to the right so its 5.

0+3=3-4=-1+6=5

What happens during cell differentiation?
Mutated cells are destroyed.
Cells are organized into organ systems.
Cells become specialized to perform different tasks in the body.
Cells are transformed from one type of cell to another.

Answers

Answer:cells are transformed from one type of cell to another ?

Explanation:

A cell removes a toxin it has produced through a chemical reaction. Which characteristic of living things is the cell demonstrating?


the ability to maintain homeostasis

the ability to maintain homeostasis

the ability to grow and develop

the ability to grow and develop

the ability to adapt and evolve

the ability to adapt and evolve

the ability to reproduce

Answers

Answer:

Sweating helps the human body maintain homeostasis by cooling the body when it starts to overheat so the internal temperature is kept more or less the same. When sweat evaporates from the skin, it uses up some of the excess heat energy on the skin, thus helping to keep the body cool.

According to cell theory, all living things are made of cells, and living cells come only from other living cells. Gene theory states that the characteristics of living things are controlled by genes, which are passed from parents to their offspring.

Sample answer: The concentration of oxygen in the atmosphere is maintained at 21 percent by a balance between two opposing processes: removal of oxygen from the atmosphere by most living things and addition of oxygen to the atmosphere by living things such as plants.

Sample answer: The human ability to sweat is an adaptation that helps maintain homeostasis in a hot environment by removing heat from the body when it evaporates. Like other adaptations, the ability to maintain homeostasis by sweating evolved by natural selection sometime in our evolutionary past.

a. Gene theory

b. Homeostasis

B

An adaptation is a trait that helps a living thing survive and reproduce in a given environment. Sample example. The chameleon’s ability to change color to match their background is an adaptation.

False

False

Humans began life as a single cell because we develop from a fertilized egg cell.

Gene theory states that genes are passed down from parents to their offspring. Genes determine the characteristics or traits of an organism. If these traits are particularly beneficial or adaptive, natural selection will cause the organisms with beneficial traits to produce more offspring compared to those without the beneficial traits. This results in a change in traits over time, which is called evolution.

No. Evolution is defined as a change in the characteristics of living things over time. Evolution through natural selection causes differences in the amount of offspring produced. Having offspring (or not) is, by definition, more than one generation.

Sample answer. I think that when ancestors of chameleons could change their color to match their background, they were less likely to be detected and killed by predators than those that couldn’t change their color. Therefore, the individuals that had the color matching ability were more likely to survive and reproduce than those that didn’t. This is an example of natural selection. Over time, this led to the population evolving the color changing ability, as those that didn’t have the ability died out.

Explanation:

i hope this helped you

I WILL GIVE BRAINLIEST1
Social classes is a characteristic of civilization that refers to

groups of people ranked by their place in society
people who come together to learn a trade
men and women who enjoy spending time together
citizens who vote in a similar way

Answers

Answer:

the answer is B

Explanation:

Sorry about those idiots from the other question

Which of the following is true based on the cell theory?
O Most organisms are made up of one or more cells
O Cells have many different components inside of them
O Cells can come from non-cellular sources
O Life starts at the level of the cell

Answers

I believe that the answer is: Most organisms are made up of one or more cells
Cell Theory was first developed in 1839 by Schleiden and Schwann, they stated that all organisms are composed of one or more cells.

Muscles have a bunch of nuclei because they need to use the DNA in the nuclei to make the large number of proteins that they must contain, so that they can relax and contract. What other organelle might muscles need a larger than normal number of?


Centrioles, so that muscle cells can retain a rigid structure during times of heavy stress (for example: lifting a heavy weight).


Mitochondria, so that muscle cells can quickly respond to the need to relax and contract.


Vesicles, so that muscle cells can ensure water availability if there is unusually low availability of water.

Answers

Answer:

it's the Mitochondria

Explanation:

The other organelle that might muscle needs a larger than normal number of is mitochondria, so that muscle cells can quickly respond to the need to relax and contract. The correct option is b.

What are mitochondria?

Mitochondria is a cell organelle that is present in both plant and animal cells. It is not present in prokaryotic cells, as prokaryotic cells do not contain cell organelles. Besides storing ATP, it also generates energy that is generated from glucose.

Muscle cells have mitochondria to accommodate this energy demand. These organelles, often known as the “power plants” of the cell, transform nutrients into the molecule ATP, which serves as a form of energy storage.

Therefore, the correct option is b. Mitochondria, so that muscle cells can quickly respond to the need to relax and contract.

To learn more about mitochondria, refer to the link:

https://brainly.com/question/28446332

#SPJ2

Michael and Jose are studying about plate tectonics. They learned that plates usually move a few centimeters every year. They learned that the movement of heated material caused the plates to move. In which layer does the heated material move?

Answers

Answer:

Mantle layer

Explanation:

The movement of heated materials on the mantle layer of the earth helps in the movement of the tectonic plates. The earth is made up of four layers and they are the crust, the mantle, the outer core, and the inner core. The tectonic plates are always in motion which is very slow but constant.

The convection currents emanating from the mantle layer of the earth aids the movement of the tectonic plates. Natural disasters like earthquakes can result from the intense pressure emanating from the movement of the plates.

How can an organism's genetic traits affect its ability to survive?

Answers

Organisms depend on the passing down of favorable traits to survive and reproduce to pass down favorable traits
Darwinism is the theory of evolution in which species die off due to natural selection meaning species must adapt and evolve in order to survive
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