Which student made observations of a community of organisms?

Answer:

C. energy can neither be created nor destroyed

Explanation:

The law of conservation of mass states that in a chemical reaction mass can neither be created nor destroyed. Similarly, the law of conservation of energy states that the amount of energy in an isolated system is conserved ie. the amount of energy can neither be created nor destroyed, but instead changes form.

Answer:

c. estuary

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Answer:

D. mitosis and meiosis

Explanation:

mitosis is a process whereby one cell makes an identical copy of it self and give rise to two cells that are genetically identical. meiosis produces four cells that have half the number of chromosomes of the cell and are generally different from the parent cell HOPE THIS HELPS YOU AND MAKES IT CLEARLY

Answer:

Use your own words, but look at explanation for example:

Explanation:

They are both so far away from the hemisphere line (which is where the warmth is) so they don't have warm temperatures at anytime of year, unlike in other places there can even be warm temperatures all year round.

Answer:

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Explanation:

Answer:

D. Chemical - mechanical - thermal​

Explanation:

Food contains chemical energy; when our bodies break down and digest food, the bonds that are broken apart release chemical energy. Our bodies convert this to mechanical energy to power movement, from movements as small as blinking or our hearts beating, to bigger movements like running or swimming. When we exercise or move, we also release heat which is thermal energy.

The energy transformations that occur when humans use energy from food to exercise is: D. Chemical - mechanical - thermal​.

Energy can be defined as the ability to do work. Thus, energy must be possessed or transferred to a physical object (body) before it can be used in doing a work or heating a system.

In Science, there are different forms of energy and these are;

In conclusion, the energy transformations that occur when humans use energy from food to exercise is chemical energy to mechanical energy and lastly to thermal​ energy.

Read more on energy here: https://brainly.com/question/1242059

Answer:

Caves are distributed widely across the globe. So far, about 17,000 caves have been discovered in just the U. S., and many more have yet to be discovered.

Explanation:

Answer:

Urinary System

Explanation:

The organs of the Urinary System include the

kidneys, renal pelvis , ureters, bladder and

Ureethra.

Answer:

The correct answer is - molars.

Explanation:

Mechanical digestion takes place inside the mouth of an organism by the process called masticating with the help of teeth. There are four types of teeth in the mouth all help in the digestion of the feed incisor cuts the food, canines tear the food, premolars, and molars chew or masticate the food.

The main and major tooth that helps in mechanical digestion is the molar to chew food so it can mix with the saliva to make bolus and chemical digestion.

Zoos are cheap and don't properly take care of animals nor do they give the right food portions often being under fed.

Answer:

Density-dependent factors lead to fewer births and increased mortality.

Explanation:

The carrying capacity can be defined as the maximum population size an environment can support. Density-dependent limiting factors produce a logistic growth pattern (S curve) in the population until it reaches its carrying capacity, thereby decreasing the birth rate and increasing the mortality rate in the population. Some important density-dependent limiting factors able to control the size of the population are competition (intraspecific competition), predation and diseases.

Answer:

It is not absorb by the plants, it turns into insoluble form.

Explanation:

Phosphorus in soil is transformed into insoluble compounds unless not used by the plants. The insoluble phosphorus is transform into soluble form in the soil by phosphorus solubilizing bacteria. The phosphorus solubilizing bacteria helps in conversion of insoluble phosphorus into soluble phosphorus which can absorb by the plants. If the phosphorus is not absorb by the plants and present for a long time, it can be converted into insoluble form which is unavailable for the plants which can be converted back with the help of phosphorus solubilizing bacteria.

Answer: Intertidal zones are regions which lie above the water level which receives low tides. Estuaries are the closed bodies of coastal waters which contain brackish water.

Explanation:

The ways through which the intertidal zones and estuaries can be protected are as follows:

1. The chemical discharge from factories and sewage discharge must be restricted or prohibited in these areas so that the water and air quality remains good necessary for the survival of living beings.

2. Prohibiting the waterways to prevent the discharge of oils which can contaminate water of estuaries and soil of intertidal zones.

3. The trash of polythene bags, plastic materials, vegetable matter discharged from the city must be cleaned up to retain the quality of soil and water.

Hi There ! Well let's comprehend the topic a bit better and let me walk you through...

Heat!We normally use heat to make food A cup of coffee in the morning or When we are doing our backyard hangouts we use heat to make Yummy steak!Heat isnt always just used to make food!We use heat to Warm up our houses ! Like a chimney we make heat to warm up our houses! Or some people use furnaces it also produces heat and warms up your room or house! Well now that we know what we use it for ....What is heat?

Of course Heat!

Heat is The energy that transfers to many different entities With a slight or major temperature difference!Please take in mind that heat only transfers to objects that are cooler than heat itself!Which means that it is energy that is transferred (or that flows ) from one object or system to another!

More info!

What are the 3 types of heat?Conduction, Convection, and Radiation.Heat can be measured in  Btu, calories or joules what we use to measure heat is hermometers and pyrometers!

Hope this helps!

                                                                                             -Tobie the Dog <3

Answer: Dairy for butter, milk, and yogurt. Fruit for oranges. Salt and beverages don't have a food group.

Explanation:

Answer:

Milk is Dairy, yougert is Dairy, Orange is a fruit, Butter I don't know, and beverages it depends

Explanation:

its type of mutation depicted in the table is D.point

The question is not complete here, however, the complete question as follows:

consider the relationship among the following terms. book letter chapter word page sentence Create a ranking system for the terms from one to six. The first one has been completed for you. Rank the remaining terms as two through six.

Answer:

1) letter 2) Word 3) Sentence 4) Page 5) Chapter 6) Book

Explanation:

All the given keywords or terms are from the book which includes various elements that make a book as a whole. A ranking system requires creation from the given related words or terms. The ranking system included the least inclusive part to the most inclusive part in

Letters are the smallest part of any reading material. Letters form words by joining together and several words form a sentence that makes up the page of the book and several pages combinedly form chapters. Lastly, series of chapters makes a completed written material called BOOK.

Answer:

1) letter 2) Word 3) Sentence 4) Page 5) Chapter 6) Book

Explanation:

Answer:

in a reflex arc, the (sensory) neuron carries the action potential from the (sense organ to the brain)

Answer:

mutated dna

Explanation:

there would be either be dna substitutions, deletions or insertions. substitution simply changes the letter. deletion gets rid of a letter. insertion adds another letter.

The answer would be D) winter

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Answer:

c. How do the positions of the Sun and the tilt of Earth cause seasons?

Explanation:

Answer: C would be best answered by using a model

Explanation:

Answer:

I can handle this task.

Explanation:

I have just tried to research on this.

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Answer:  Blood carries oxygen and other important nutrients that all body organs need to stay healthy and to work properly. Your heart is a muscle, and its job is to pump blood throughout your circulatory system.

Explanation:

Answer:

They are different because ethanol is a compound that is made by a certain amount of carbon, oxygen and hydrogen, these are the elements that made up ethanol.

Explanation:

Think of it like this ethanol is a cake and carbon, oxygen and hydrogen is the eggs, flours and sugar that is used to make the cake.

Answer:

this bacteria has a rod shaped form

Answer:

rod-shaped

Explanation:

Bacteria in the genus Thiobacilli are classified within the order Pseudomonadales. They are small, rod-shaped cells (0.5 by 1–3.0 µm) which may be motile or nonmotile. Motility is due to a single polar flagellum. Bergey's Manual (1957) lists nine species, most of which are aerobic.