Pls help 40 points!!!!!!!

Answer:

change in temperature

change in color

noticeable odor after reaction has begun

formation of precipitate

formation of bubbles

Answer: Check off boxes 1,3,4,6,7

Explanation: A chemical change occurs when a substance combines with another to form a new substance.

Answer:

Infection

Explanation:

Answer:

A scientific question

Explanation:

You need to have a question that can be answered by science, so therefore you can use the scientific method to solve the problem

Answer:

Applying ice to the bite area in order to decrease the temperature of the cells.

Explanation:

If the temperature of the cells are low, then they can't mulitply as quickly, thus slowing the spread of the venom.

The statement that is correct for most veins in the human body is " they have valves".

BLOOD VESSELS:

There are three types of blood vessels namely: veins, arteries and capillaries.

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Answer:

The ecological footprint is a method promoted by the Global Footprint Network to measure human demand on natural capital, i.e. the quantity of nature it takes to support people or an economy.[2][3][4] It tracks this demand through an ecological accounting system. The accounts contrast the biologically productive area people use for their consumption to the biologically productive area available within a region or the world (biocapacity, the productive area that can regenerate what people demand from nature). In short, it is a measure of human impact on the environment.

Footprint and biocapacity can be compared at the individual, regional, national or global scale. Both footprint and biocapacity change every year with number of people, per person consumption, efficiency of production, and productivity of ecosystems. At a global scale, footprint assessments show how big humanity's demand is compared to what Earth can renew. Global Footprint Network estimates that, as of 2014, humanity has been using natural capital 1.7 times as fast as Earth can renew it, which they describe as meaning humanity's ecological footprint corresponds to 1.7 planet Earths.[1][5]

Ecological footprint analysis is widely used around the world in support of sustainability assessments.[6] It enables people to measure and manage the use of resources throughout the economy and explore the sustainability of individual lifestyles, goods and services, organizations, industry sectors, neighborhoods, cities, regions and nations.[2]

Answer:

carbon, hydrogen,oxygen

Explanation:

hope this helped!

Answer:

Hello! How r u?

Explanation:

a virus is a submicroscopic infectious agent that replicates ONLY inside the living cells of an organism. In my opinion I would say no, only because it can duplicate itself once it has become the host of the living organism and make them sick, and will soon be contagious doesn't mean it's an living thing.

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Answer:

Viruses are not living things.

Explanation :

Viruses are made with molecules (complex assemblies) but they are dependant on the living being whom they are entering. They can't multiply themselves without cells. Therefore, viruses are not living things.

Answer:

D

Explanation:

Answer:

gas at room temperature

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Answer:

β-oxidation and gluconeogenesis

Explanation:

This 22-year-old woman, by not eating her food for a long time, entered a period of prolonged fasting.

Which there are no glycogen reserves, since they were depleted and neither were glucose assimilations by the cells because the person only ingested water.

Prolonged fasting is extremely dangerous because fatty tissues are degraded resulting in ketone bodies that are considered toxic and cross the blood-brain barrier.

Once the fat tissue reserve is completely finished, the body will enter into proteolysis of the body's own structural proteins in order to obtain energy, this is how the phenomenon of abrupt consumption of muscle tissue occurs.

Answer:

umm chile

Explanation:

me dont understand because im slow

Answer:

4(3/7)

Explanation:

7x+9=40

7x=40-9

x=31/7

x=4(3/7)....

The circled part of the statement, "7x + 9," is the algebraic expression on the left side of the equation. This expression represents the sum of the product of 7 and the variable x and the value 9.

The circled part of the statement, "7x + 9," represents the mathematical expression for the left side of the equation. It is composed of two terms: "7x" and "9." The term "7x" is a product of a coefficient, 7, and a variable, x. This means that the value of "7x" changes depending on the value of x. The term "9" is a constant, which means that its value remains the same regardless of the value of x. Together, these two terms make up the left side of the equation and represent the value that we are trying to find by solving the equation.

The right side of the equation, "40," represents the value that we are trying to match the left side to by solving the equation. The equation is then solved by isolating the variable x, which is done by subtracting 9 from both sides of the equation, which results in 7x = 31, then dividing both sides by 7, which results in x = 4.5.

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Answer - two haploid cells

Hope it helps.

When a cell undergoes meiosis, one diploid cell ends up dividing into  two haploid cells. Therefore, option A is correct.

Meiosis is a special type of cell division in which reduction of cell occurs, Therefore, it is also called as reduction division because it reduces the number of chromosomes to half the normal number.  

When fusion of sperm and egg occurs, baby will have the correct number. When a cell undergoes meiosis, one diploid cell ends up dividing into  two haploid cells. These cells are our sex cells, sperm in males, eggs in females.

The germ cells undergo the process of meiosis to produce haploid cells that are the sperm and the egg. The development of a new organism is then initiated by the mixing of these gametes at fertilization.

Thus, option A is correct.

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Answer:

Unlike a wild guess, a hypothesis is based on observations and it must be testable.

Explanation:

Answer:

because its testable

Explanation:

because You are guessing what the final outcome will be with whatever knowledge you knew or researched.

also and educated guess is based on what you know but it isn't testable.

like i think the sky is blue because i saw it.

    vs

if i get people to look at the sky then i will determine if it is blue or not

Answer:

I just think not I believe also.

Answer:

Yes.

Explanation:

Scientists fail all the time. Using different methods with the same hypothesis to answer your idea is what investigations are all about.  Trying different ways is immaculate.

Answer:

Electron microscopes differ from light microscopes in that they produce an image of a specimen by using a beam of electrons rather than a beam of light. Electrons have much a shorter wavelength than visible light, and this allows electron microscopes to produce higher-resolution images than standard light microscope

Hope it is helpful !!!

Answer:

The answer is:

Electron microscopes differ from light microscopes in that they produce an image of a specimen by using a beam of electrons rather than a beam of light. Electrons have much a shorter wavelength than visible light, and this allows electron microscopes to produce higher-resolution images than standard light microscopes

Hope it helps you.

Thank you!

Answer:

This question is incomplete; it lacks options and they are:

A) Energy: glycogen and starch

Structure: cellulose and chitin

B) Energy: cellulose and chitin

Structure: glycogen and starch

C) Energy: chitin and glycogen

Structure: cellulose and starch

D) Energy: cellulose and starch

Structure: chitin and glycogen

The answer is option A

Explanation:

Carbohydrates are biological molecules in living systems. Polysaccharides are a type of carbohydrate molecules, which are polymers made up of monomers called monosaccharides. Monosaccharides such as glucose, fructose etc. are joined together by glycosidic bonds to form this polysaccharides. However, polysaccharides found in nature are classified based on their function in their found organisms.

1) Energy: Glycogen and starch are the two carbohydrate polymers that function in this aspect. They are both made up of long chains of glucose unit linked by α glycosidic bonds. Glycogen stores energy in the animal cells while starch stores energy in plant cells.

2) Structure: Cellulose and Chitin are the two carbohydrate polymers involved in this function. Cellulose is made up of glucose monomer linked together by β glycosidic bonds. It is the major structural component found in the cell wall of plant cells. Chitin is also a polymer of N-acetyl glucosamine and the major structural component of the cell wall of oorganisms like fungi.

Answer:

The ENDOPLASMIC RETICULUM serves important functions particularly in synthesis ,folding,modification and transport of proteins .  The GOLGI BODY plays key role in sorting many cells proteins and membrane constituents and in directing them to their proper destination. The MITOCHONDRIA produce energy necessary for cells survival and functioning . The RIBOSOMES assumes the role of bringing together amino acids to form proteins.

Explanation:

HOPE IT HELPS

Answer:

A control group is the standard to which comparisons are made in an experiment

Explanation:

Explanation:

Answer:

it is under a force of carbin cycle

D.CARBON CYCLE

Photosynthesis and cellular respiration are the driving forces behind carbon cycle.

Photosynthesis and cellular respiration are the primary processes responsible for driving the carbon cycle, which is the movement of carbon through the Earth's atmosphere, oceans, and land.

Photosynthesis is the process by which plants, algae, and some bacteria convert carbon dioxide and water into glucose and oxygen using energy from sunlight. This process removes carbon dioxide from the atmosphere and stores it in the form of glucose, which is used by plants for growth and energy.

Cellular respiration is the process by which cells convert glucose and oxygen into energy, releasing carbon dioxide and water as waste products. This process occurs in all living organisms and is the reverse of photosynthesis.

The carbon cycle is also influenced by other processes such as the decomposition of organic matter, the burning of fossil fuels, and the release of carbon dioxide from volcanoes.

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Answer:

26

Explanation:

According to Chargaff's rule, a typical DNA molecule must have an equal ratio of both purine and pyrimidine bases. Purine is made up of Adenine and Guanine bases while pyrimidine is made up of Thymine and Cytosine bases.

Hence, if the amount of Adenine in DNA is 26%, the amount of Guanine would also be 26%. This would leave the remaining 48% of the DNA as Thymine and Cytosine to be shared in an equal proportion of 24% each.

In summary:

If Adenine = 26, Guanine would also be = 26

Adenine + Guanine = 52%

Thymine + Cytosine = 48%

Answer:

interaction

Explanation:

best shows when the quaternary.

structure of a protein is formed

Answer: C.

Explanation:

I believe the correct answer is c. *translation*

Answer:

B

Explanation:

This disease targets mitochondrias, which produce energy for the cells.

Answer:

Dan can represent the data through a double bar graph.

Answer: Bar Graph

Explanation: Brainliest pls