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Answer:C

Explanation:

Answer: C. Living things and the environment

Explanation: It's correct!

Answer:

Organisms use energy to survive, grow, respond to stimuli, reproduce

Explanation:

Three ways energy is used by the organism are food, nutrients, and sunlight.

Living organisms are those organisms that grow, adapt, and reproduce their young ones. Organisms need energy for their biological purposes. Organisms get energy from plants and other animals. This energy is used in the form of glucose.

Cellular functions require energy, which living things must obtain from food, nutrition, or sunshine. Energy is used in a cell for the transport, synthesis, and breakdown of nutrients and molecules.

Glucose and ATP are the two types of molecules that organisms primarily use for chemical energy. In the entire biological universe, both molecules are used as fuel.

Therefore, the energy is used by the organisms in three ways that are food, nutrients, and sunlight.

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Answer:

a

Explanation:

Answer:

biosphere, geosphere, hydrosphere

Explanation:

Given parameters:

Number of lizards  = 150 lizards

Area of the study = 25km²

Unknown:

Population density = ?

Solution:

Population density refers to the number of organisms per area in a particular location.

Mathematically;

     Population density  = [tex]\frac{Total Population}{Area}[/tex]  

    Population density  = [tex]\frac{150}{25}[/tex]   = 6lizards/km²

The population density of the study area is  6lizards/km²

Answer:

C. Guanine

Explanation:

A pairs together with T, or U in RNA,

and C and G always pair together.

Answer:

The answer is C. Guanine

Explanation:

Pyrimidines always bond with purines.  Since Cytosine is a pyrimidine, it must bind with a purine, which can either be Adenine or Guanine.  However, Adenine has only 2 places for hydrogen bonding while Guanine has 3.  Since Cytosine also has 3, it would bind to Guanine.  GCAT is a useful acronym for remembering which binds to which.

Answer:

Explanation:

Astronomers use the entire electromagnetic spectrum to observe a variety of things. Radio waves and microwaves – the longest wavelengths and lowest energies of light – are used to peer inside dense interstellar clouds and track the motion of cold, dark gas.

Answer:

80N

Explanation:

in both sides, pressure is the alwyays the same whatever the area is..

First we calculate the pressure at piston A:

P= F÷a

given that,

#F= 20N

#a=1m^2

P= 20÷1

P= 20 Pa.

At piston B:

pressure is the same = 20Pa

Area= 4m^2

P=F/a

F= P×a

F= 20 × 4

F= 80N

Answer:

The cytoplasm is a jelly like substance that supports and suspends organelles and molecules inside the cell. It also helps move and dissolve materials throughout the cell including waste molecules, proteins, and hormones.

I hope this helps! I tried to keep it short and simple. :)

Answer: A fundamental task of proteins is to act as enzymes—catalysts that increase the rate of virtually all the chemical reactions within cells.

Explanation:i had a project on this

Answer:

Enzymes are a type of protein found within a cell.

Explanation:

Enzymes create chemical reactions in the body. They actually speed up the rate of a chemical reaction to help support life.

Answer:Guinea pigs get have of their traits from mom and half from dad. Some traits are recessive some are dominant

Answer:

A. Observation

Explanation:

To follow the scientific process you must first observe what phenomena you want to study, then you can make a hypothesis. The other options are not part of the scientific process.

Answer:

Explanation:

chloroplasts

In plants, photosynthesis takes place in chloroplasts, which contain the chlorophyll. Chloroplasts are surrounded by a double membrane and contain a third inner membrane, called the thylakoid membrane, that forms long folds within the organelle.

Answer: Well cacti for one

Explanation:

They can store water for a really long time because of the little rain.

Succulent plants have an adaptation that would help them survive in the desert.

Cactus is an example of succulent plants that are adapted to survive in the hot and humid conditions of the desert. To survive in the desert, cactus has the following adaptations:

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Answer:

A fundamental task of proteins is to act as enzymes—catalysts that increase the rate of virtually all the chemical reactions within cells. Although RNAs are capable of catalyzing some reactions, most biological reactions are catalyzed by proteins.

Explanation:

Enzymes perform the critical task of lowering a reaction's activation energy—that is, the amount of energy that must be put in for the reaction to begin. Enzymes work by binding to reactant molecules and holding them in such a way that the chemical bond-breaking and bond-forming processes take place more readily

Answer:

Hey mate......

Explanation:

This is ur answer.....

B. 8 Kilograms

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Answer:

Explanation:

It changes as new evidence is found.

An example is the scientific knowledge of climate change. This scientific knowledge is not agreeable across all the world scientists. However as more and more evidence is collected, over time, the understanding of climate change will change and will either refute or corroborate the earlier understanding.

Answer:

I think it would be a "Waxing Crescent"

Explanation: I said this because this is the Moon phase that we see almost everyday; if I'm correct.                        

Let me know if it's right or wrong...

According to the American Humane Society, roughly 95% of all cats are short hair cats (called domestic shorthair). This applies not just to strays but cats that have owners as well. So that fact alone is enough to be able to see why most strays are short hair cats.

Through my research, I'm reading that some people claim that long hair cats are more expensive and rare cats, so the owner is likely to take better care of them and keep them indoors. This further inflates the percentage of stray short hair cats out on the street. I couldn't find much about this from an official source, but instead just through forum posts.

As for the colors, I'm not entirely sure. The cat's fur color comes from its genetics. So it's possible that darker more earth-tone colors help the animal survive better compared to say a lighter color or white fur. Due to natural selection and survival of the fittest, the darker hair color cats will eventually out-number the lighter fur colors. That's my theory anyway. I couldn't find much data or studies to back that up.

Answer:

Blood would not pump fast enough to the rest of our bodies.

Explanation:

Answer:  The mechanical advantage of a machine is 4. ... ... So MA = 4 means that for example if you apply 100 N then your machine will multiply that force and generate 400 N.

Explanation:

Answer:

Since electromagnet waves do not need a medium they can travel through space. Sound waves can't travel through space because they need a medium.

Explanation:

The satellite uses electromagnetic waves instead of sound waves these types of waves do not require any medium for the transmission of the information.

The types of electromagnetic waves that are used by satellites are known as radio waves. These waves are utilized in order to carry out satellite signals with a speed of 3000,000km/sec.

Electromagnetic waves facilitate the required amount of speed and characteristics which ease the transmission of information required by the satellites. Radio waves are traveling through the vacuum of space with the fastest speed at which the information via the satellite can be transmitted. Radiowaves are also used for spacecraft communications as well.

Therefore, the satellite uses electromagnetic waves instead of sound waves these types of waves do not require any medium for the transmission of the information.

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Answer:

d

Explanation: