Scientists use many different methods of investigation. When possible, scientists want to actually experiment or observe an event. Which method is useful when developing a
scientific reasoning for an event that cannot be studied directly?
Conduct a field survey of bird populations in an area
Observe the effect of various fertilizers on corn crop yields
Use a computer model to study how the ocean liner Titanic sank
Use a wind tunnel to measure air drag on various types or automobiles

Answers

Answer 1

Answer:

Observe the effect of various fertilizers on corn crop yields

Explanation:

I think I'm right

Answer 2

Answer:

Observe the effect of various fertilizers on corn crop yields

Explanation:


Related Questions

2. What is the name of the process of gathering evidence called? *
1 point
the Experimental Process
the Scientific Proof
the Scientific Experiment
the Scientific Method

Answers

Answer:

the answer is d scientific method

Answer:d the scientific method

Explanation:

Please help please help please help please help please help please help please help please help please help please help please help please help please help please help

Answers

Answer:

4

Explanation:

It makes sence when you look at it more

Answer:

4

Explanation:

what is carrying capacity? what type of population growth does it affect?

Answers

Carrying capacity is referred to a population size of species in a particular habitat. In an ecosystem, the population of a species will increase till it reaches its carrying capacity. Then the population size remains relatively equal.

What are the types of carrying capacity?

Carrying capacity is the maximum limit till that the ecosystem can support the existence of the population.

There are four categories of carrying capacity, namely:

Physical.Ecological.Economic.Social.

A specific environment's carrying capacity is the maximum population size that it can support.

The carrying capacity modifies the growth rate by slowing it when resources become scarce and stopping growth once it is reached.

Thus, it can be concluded that the carrying capacity is the average population size of species in a particular habitat which slows and stops the growth rate on reaching it.

For more details regarding carrying capacity, visit:

https://brainly.com/question/2375972

#SPJ1

If a recipe calls for 5 g of sugar, and you have 7 mg of sugar, do you have enough sugar for the recipe? Why or why not?​

Answers

Answer:

if recipe calls 5g of sugar it's a lot that the sugar u have so, the answer is no

Answer:

no

Explanation:

because 0.007<5g

by converting the units

HURRRY PLEASE!!!!
If oxygen is present after glycolysis, the citric acid cycle begins, which is indicated by letter __.
A) Location A
B) Location C
C) Location E
D) NONE OF THESE

Answers

Answer:A

Explanation:

Which of the following statements is NOT an example of evidence?
O The object's length 30 cm.
O The liquid was red in color.
O The liquid froze at 10°C.
O The liquid was identified as water because of its appearance.

Answers

Answer:

its the 4th one, you can't base something off appearance

the last one- it would be more of an observation rather than evidence.

all amhibiana have limbs true or false​

Answers

Answer:

true

Explanation:

Amphibian skin is permeable, meaning that it's not a solid barrier to the environment. They can absorb oxygen right through their skin. ... Amphibians have the amazing ability to re-grow not only tails but also toes and even legs to some extent!

Who can help me on this?

Answers

Option a is the correct answer

HeLP me Plz I need help

Answers

Answer:The first one

Answer:

A would be the best answer

Which of the following best describes the effect of a greater number of cysteine amino acids on the stability of the proteins

Answers

Answer:

The correct answer is -

The change leads to increased protein stability because of an increased number of S-S bonds in the tertiary structure of the proteins.

Explanation:

Cysteine is a special amino acid due to having a free thiol group that can react and forms a sulfur-sulfur bond with another thiol of another cysteine in a protein structure.

These disulfide bonds can stabilize proteins if formed properly and promote stability to the tertiary structure of the proteins. The more the cysteine, the greater the number of thiols, and the greater the s-s bond in the proteins and more stability to the protein.

What does predation mean? (Give definition, example & explanation)

Answers

Answer:

Definition.    Predation refers to a flow of energy between two organisms, predator and prey. ... The word 'predation' derives from the Latin word praedari, meaning 'to plunder'. Predation includes carnivory, as well as interactions like grazing, parasitism, and symbiotic mutualism.

An example of predation is an animal eyeing its next kill for supper. noun.

    explanation     technical  the act of killing and eating other animals : the act of preying on other animals.

2. Science is
a. a way of life
b. a way to understand the world
c. answers to all our questions d. a new language

Answers

Answer:

c. answers to all our questions

HELP ASAP

The word _____ is defined as the point at which an astronomical object is at its closest point to the object it rotates around.

A.equinox
B.solstice
C.perihelion
D.aphelion
E.tide

Answers

Answer:

Equinox.

Explanation:

Is when it is the closest.

Answer:

Answer is C

Explanation:

find all the hidden words related to earthquake in the grid below​

Answers

you didnt upload a picture so how are we supposed to see a graph?
uh sorry but I don’t see no grid! :v

Mary decided she wanted to experiment with the color of her white roses. She placed
four roses in four different vases. Mary decided to put a different color dye in each
vase. The next day she checked each vase and noticed that the white petals turned into the color of the dye placed in the vase. What two properties of water work together to get the colored dye up to the flower petals?

A : cohesion and adhesion
B : cohesion and specific heat
C : hydrogen bonding and adhesion
D : specific heat and hydrogen bonding

Answers

Answer:

A : cohesion and adhesion

Explanation:

Which of the graphics best represents an animal cell? !!!THIS IS URGENT!!!​

Answers

Answer:

A

Explanation:

It’s Red

Answer: A

Explanation: Animal cells don't have cell walls like cell B does, so it has to be A.

How many ATP are produced between all parts on this diagram?
A) 2
B) 4
C) 20
D) 36

Answers

if this is cellular respiration 36
Your answer is D , 36

What could the nitrogen cycle not exist without?

Answers

Answer:

Microbes.

Explanation:

Microscopic organisms break down dead things and release the nitrogen back into the soil and atmosphere.

Which structure in the cell shown in Figure 7–2 above stores materials, such as water, salts, proteins, and carbohydrates?
A. structure A
B. structure B
C. structure C
D. structure D

Answers

We need to see the picture

Why flower produces only a small amount of nectar (food for insects) at a time ​

Answers

Answer:

Nectaries are usually located at the base of the flower stamens, which draw animal visitors into contact with the pollen to be transferred. Most flowers secrete only relatively small amounts of nectar, which encourages cross-pollination, since animals must visit several flowers in order to receive a full meal.

Explanation:

why are index fossils useful to geologist

a.they tell the relative age of the rock in which they occur

b. they tell the ages of many different rock layers

c.they tell the age of the rock at one location only

d. they tell the absolute age of the rock in which they occur

Answers

Answer:

Explanation:

Index fossils (also known as guide fossils or indicator fossils) are fossils used to define and identify geologic periods (or faunal stages). Index fossils must have a short vertical range, wide geographic distribution and rapid evolutionary trends.

Index fossil, any animal or plant preserved in the rock record of the Earth that is characteristic of a particular span of geologic time or environment. A useful index fossil must be distinctive or easily recognizable, abundant, and have a wide geographic distribution and a short range through time. Index fossils are the basis for defining boundaries in the geologic time scale and for the correlation of strata. In marine strata, index fossils that are commonly used include the single-celled Protista with hard body parts and larger forms such as ammonoids. In terrestrial sediments of the Cenozoic Era, which began about 65.5 million years ago, mammals are widely used to date deposits. All of these animal forms have hard body parts, such as shells, bones, and teeth, and evolved rapidly.

what are the main function of irrgation systems​

Answers

Answer:

Irrigation helps to grow agricultural crops, maintain landscapes, and revegetate disturbed soils in dry areas and during periods of less than average rainfall. Irrigation also has other uses in crop production, including frost protection, suppressing weed growth in grain fields and preventing soil consolidation.

Irrigation helps to grow agricultural crops, maintain landscapes, and revegetate disturbed soils in dry areas and during periods of less than average rainfall. Irrigation also has other uses in crop production, including frost protection, suppressing weed growth in grain fields and preventing soil consolidation.

Hope you have a great dayyyyy!!!!

How might the role of the mucous membrane in the lungs be different from the role of the cell membrane surrounding a normal blood cell ?

Answers

Answer:

Mucous membrane, membrane lining body cavities and canals that lead to the outside, chiefly the respiratory, digestive, and urogenital tracts. Mucous membranes line many tracts and structures of the body, including the mouth, nose, eyelids, trachea (windpipe) and lungs, stomach and intestines, and the ureters, urethra, and urinary bladder.

The light-dependent reactions of photosynthesis do not include:
A.) chemiosmosis
B.) carbon fixation
C.) transformation of light to chemical energy
D.) electron transport

Answers

Answer:

electron transport

Explanation:

A globular cluster is a large group of old stars. What could be a reason new stars are not usually observed within globular clusters?

Answers

Answer: Globular clusters do not have sufficient amounts of gas and dust

Explanation: i got it wrong on usatestprep lol

True or false: the food chain of land animals begins with the soil

Answers

Answer:

True

Explanation:

The primary producers are the first trophic level of the soil food web. Organisms in this trophic level are photosynthesizers, including plants, mosses, algae, lichens and photosynthetic bacteria. ... Primary consumers obtain energy by eating primary producers or the residues they produce.

Hope this helps :)

What is the best response to sirmulus

Answers

Answer:

Hmm.

Explanation:

An organism's best response to a stimulus is Dog barks when there are fireworks.

'Stimulus: any change in an organism's environment that causes the organism to react. It is a fancy way of saying “cause”. Example: An animal is cold so it moves into the sun.'

This model of the cell cycle includes two arrows that each represent a process in the cycle. What do the two arrows represent?

Answers

The longest curved arrow represents the cell's interphase; the shortest represents cytokinesis; and the middle one represents mitosis.

please help please help please help please help please help please help please help please help please help please help please help please help please help please help \

Answers

Answer:

D

Explanation:

Groups of cells working together are called tissues.

Happy Halloween!

Answer:

d

Explanation:

A scientist discovers several new prokaryotic organisms near a deep seafloor vent. Which best describes the general characteristics of these organisms?

A.
colonial, autotrophic
B.
multicellular, heterotrophic
C.
single-celled, autotrophic
D.
multicellular, autotrophic

Answers

Answer:

a,

Explanation:

The general characteristic of the new prokaryotic organisms is single-celled, autotrophic. Therefore, the correct statement is option C.

What are prokaryotic organisms?

Prokaryotic organisms are unicellular organisms that lack a nucleus and other membrane-bound organelles. They can be either autotrophic or heterotrophic.

Deep seafloor vents are chemosynthetic organisms, which produce organic molecules using energy from chemical reactions. Prokaryotic organisms include bacteria and archaea and are the most common types of organisms found in deep-sea vents, and many of these are chemosynthetic and autotrophic.

The new prokaryotic organisms discovered near a deep seafloor vent are single-celled and autotrophic which can produce their food through chemosynthesis.

Therefore, new prokaryotic organisms near a deep seafloor vent are that they are single-celled and autotrophic.

Learn more about prokaryotic organisms here:

https://brainly.com/question/15329345

#SPJ3

Other Questions
j(x)=45x+7; j(x)=5 Please help me an thank you What is the definition of an infinitive? Give examples in English and Spanish. What is meant by the phrase "paper Victories?" A team won 8 of 24 games it played in one season what percentage of games did it win Alcohol wiped across a tabletop rapidly disappears. What happened to the temperature of the tabletop I need the answers for 21 and 23 please:( What is different between the two concepts: Separation of Powers and Checks and Balances? List 2 ways to determine if evidence is relevant.help me out please A line has a slope of -2/3 and passes through the point -3 and eight what is the equation of the line You want to estimate the number of students in your middle school who play videogames. Which of the following would represent a random, valid sample?O 10 students from your homeroom classO Your 5 best friends at the lunch table100 randomly selected people from your apartment complexO 100 students selected randomly as their enter your middle school in the morning The Periodic Table is a chart of elements arranged in rows and columns according to their what physical properties.chemical properties.name.place of origin. What term describes the belief that current inhabitants of an area are better than Incoming Immigrants?.nativismOB. melting pot.Little ItalyODsettlement housesO E.Exclusion ActThe please answer quickly its for a test! anyone know the contour interval? You have a bowling ball with a mass of 4kg. You throw it with an acceleration of 10 m/s/s. With how much force will it hit the pins? A city engaged in the following transactions during a year: It acquired computer equipment at a cost of $40,000. It completed construction of a new jail, incurring $245,000 in new costs. In the previous year the city had incurred $2.5 million in construction costs. The project was accounted for in a capital projects fund. It sold for $16,000 land that it had acquired three years earlier for $28,000. It traded in a fouryearold sanitation department vehicle for a new model. The old vehicle had initially cost $27,000, its carrying value at the time of trade was $17,000, and its market value was $13,000. The city paid an additional $39,000 cash for the new model. The fair value of the new model was $52,000. Prepare journal entries to reflect the transactions in an appropriate governmental fund (e.g., a general fund or a capital projects fund). Prepare journal entries to reflect the transactions in the city's governmentwide statements. George has several plants in his garden once in a while he adds fertilizer to the soil then leaves absorb the nutrients in the fertilizer and you look healthy if a cell is compared to a plant which organelle helps transport fertilizer from the soil to leaf? A. lysosomeB. mitochondrionC. vacuoleD. vesicle why do we fart ( i mark brainliest) 100 points help me with the question please