An idea based on observations with no experimental evidence is a:
a.
Hypothesis
c.
Theory
b.
Model
d.
Law


Please select the best answer from the choices provided

A
B
C
D

Answers

Answer 1

Answer:

a

Explanation:

Answer 2
The answer is A, a hypothesis

Related Questions

Which of the following describes a way that protists differ from animals and plants? Group of answer choices

A.Different species of protists do not differ greatly from one another.

B.Protists are typically much larger than most plants and animals

C.Protists resemble neither plants nor animals.

D.Protists resemble neither plants nor animals.

Answers

Answer:

A. Different species of protists do not differ greatly from one another

Which of the flowing best describes how reduced space affects the animals in an environment?

a
They will have more food and water to share.

b
The population of the animals in that space will increase.

c
They will compete and fight for resources.

d
They will struggle to survive.

Answers

Answer:

d

Explanation:

they will not be able to survive with no food or water

p.s. i know the other person answered it but they did not explain it

Answer: Option (D) Is correct, They will struggle to survive.

Explanation: Hope it helps!

Good luck!

50. The flow chart below shows how a metamorphic rock can change into a

sedimentary rock. Which of these processes would be the correct label to

replace the question mark?

Metamorphic rock

Sediment

Sedimentary rock

Erosion

?

A) Cooling

B) Deposition

C) Melting

D) weathering

Answers

Answer:

The process that would be the correct label to replace the question mark in this question is:

B) Deposition

Explanation:

Deposition takes place after erosion of sedimentary rock.  At this stage, the eroded sedimentary rocks build up under high pressure heat, wind, ice, water, and other natural forces to originate the rock formation cycle once again.  Naturally, after deposition, the igneous rocks, which have then layered up sedimentary rocks to become metamorphic rocks.

Match the descriptions with the correct phases of the ovarian cycle - progesterone levels are highest during this phase - menses occurs during the first part of this phase - LH levels peak during, or just before, this phase - This phase occurs approximately 14 days before the onset of menstruation - GnRH secretion is inhibited by estrogen secreted from the corpus luteum during this phase - This phase corresponds to the secretory phase of the uterine cycle - A follicle ruptures during this phase - The antrum of a follicle grows larger during the end of this phase A. Follicular phase B. ovulation C. Luteal phase

Answers

B that is what I put and I got it right

Here's a match of the descriptions with the correct phases of the ovarian cycle:

Progesterone levels are highest during this phase: C. Luteal phaseMenses occurs during the first part of this phase: A. Follicular phaseLH levels peak during, or just before, this phase: B. OvulationThis phase occurs approximately 14 days before the onset of menstruation: C. Luteal phaseGnRH secretion is inhibited by estrogen secreted from the corpus luteum during this phase: C. Luteal phaseThis phase corresponds to the secretory phase of the uterine cycle: C. Luteal phaseA follicle ruptures during this phase: B. OvulationThe antrum of a follicle grows larger during the end of this phase: A. Follicular phase

What is an Ovarian cycle?

The ovarian cycle is the monthly series of changes that occur in a female's ovaries, specifically in the development and release of an egg (ovulation).

The cycle is regulated by several hormones produced by the hypothalamus, pituitary gland, and ovaries, and is divided into three main phases: the follicular phase, the ovulatory phase (or ovulation), and the luteal phase.

Learn more about ovarian cycle, here:

https://brainly.com/question/14224887

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What might happen to the Earth if human increase the amount of greenhouse gasses?

Explain your answer.''

Answers

Answer:

Greenhouse gas refers to any gaseous compound in the atmosphere that can absorb infrared radiation, thereby trapping heat and keeping it in the atmosphere. By increasing the heat in the atmosphere, greenhouse gases are responsible for the greenhouse effect, which ultimately leads to global warming.

Examples why greenhouse gases in the atmosphere:

farming cattle releases methane farming rice in paddy fields releases methane burning fossil fuels in vehicles and power stations releases carbon dioxide deforestation releases carbon dioxide and reduces the absorption of carbon dioxide through photosynthesis

Explanation:

the ozone layer will be destroyed and the dangerous sun ray will cause alot of disaster

What does inflammation lead to allow white blood cells to find the
infection and the release of cytokines?

Answers

because then you get a infection

Which of the following is a true statement? Physical property change is always better than chemical property change.
o Physical and chemical propery change can happen at the same time.
Chemical property change is better than physical property change.​

Answers

Answer:

the second one

Explanation:

Sometimes it can be tricky to know whether or not a chemical reaction has occurred. For example, when you melt ice into water, you can write the process in terms of a chemical reaction. However, the chemical formula on both sides of the reaction is the same. Since the chemical identity of the matter in question is unchanged, this process represents a physical change.

Thus melting point is a physical property. On the other hand, flammability is a chemical property of matter because the only way to know how readily a substance ignites is to burn it. In the chemical reaction for combustion, the reactants and products are different.

none are better, depending on for what

Why the Carbon must be cycled through the carbon cycle?

Answers

Answer:

The carbon cycle describes the process in which carbon atoms continually travel from the atmosphere to the Earth and then back into the atmosphere. Since our planet and its atmosphere form a closed environment, the amount of carbon in this system does not change.


Do you think the amount of foam in the glasses will differ?

Answers

The amount of foam in the glasses will differ. In terms of increasing foam rise, Glass A will be the least, then E, D, B, and C having the most foam rise. ... This is being tested from the carbon dioxide output of the glass which is measured from the height of the foam.

Answer:

these are all the answers to the entire course activity

Please mark as brainliest if this helps

Explanation:

Globalization of the economy is increasing because of which of these factors? O A. Agreements limiting immigration OB. A decrease in international travel O C. Treaties expanding international trade O D. A decrease in demand for resources​

Answers

Answer:

C is the best answer

Explanation:

This answer makes the most sense in the context of globalization.

Globalization of economy is increasing because of Treaties expanding international trades .

What is globalization ?

The process by which businesses or other organizations develop international influence or start operating on an international scale can be referred as Globalization.

What are the factors of economic globalization?

Three suggested factors accelerated economic globalization:

advancement of science and technology, market oriented economic reforms contributions by multinational corporations.

Globalization of economy is increasing because of treaties expanding international trades .

Hence ,option C is correct

To learn more about globalization herehttps://brainly.com/question/15283031

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what is a scienctific theory

Answers

Answer:

" A scientific theory is a well-substantiated explanation of some aspect of the natural world, based on a body of facts that have been repeatedly confirmed through observation and experiment. Such fact-supported theories are not "guesses" but reliable accounts of the real world."

Explanation:

- Eijiro <3

The production of red blood cells is regulated by a feedback loop involving erythropoietin. In non-disease states, the production of red blood cells is equal to the destruction of red blood cells, thus maintaining sufficient red blood cells to deliver adequate oxygen to the body's tissues. However, when the number of red blood cells decrease and oxygen levels are low, erythropoietin is produced by the liver and kidneys to increase the production of red blood cells. Is this a positive or negative feedback loop

Answers

Answer:

Negative feedback.

Explanation:

The production of erythropoietin by the liver and kidneys is a negative feedback because with the production of erythropoietin, our body tends to move to become more stable state. The erythropoietin is produced by the liver and kidneys to increase the production of red blood cells if the quantity of red blood cells are lower than the normal range. If the number of red blood cells are decreases the oxygen level in our body is low that leads to unstable condition of the body but when the concentration of red blood cells increases, the body move towards stability.

!!FOR PLANT SYSTEMS!!
Given the loss of farming jobs projected in the near future, distinguish at least two factors in a decision one might make to enter the field.

Answers

i cant process this lol no matter how much tiems read it

Answer:

this is the suggested answer

Explanation:

A correct answer will discuss two factors from among the following: one factor is despite the projected loss in farming jobs, these jobs are still essential and may still provide for a lucrative and successful career given that the median income level that is significantly higher than the national average. Another factor is the wide variety of careers in this general field, so the information on declining career outlook could be misleading, depending what specific career one is looking into. Another factor is the several training programs available to benefit those looking to enter this field, which can contribute to success.

a coyote captures kills and eats a rabbit. what type of symbiotic relationship is this

Answer option

Predator-prey relationship

Mutually beneficial relationship

Competitive relationship

Parasitic relationship

Answers

i believe it is predator prey, the coyote is the predator, and the rabbit is the prey. they both are not competing for food(eliminating competition) , neither are both of them benefited. (eliminating mutualism) and a host is not used in this problem so that also eliminates the parasitic relationship. hope this helps! <33

is the long-term average weather over a large area

Answers

Climate is the long-term average weather conditions that occur in a particular region. Climate depends on how average weather conditions change throughout the year.

16. Which combination of terms correctly matches an organ system with a tissue in that system?
a. Circulatory system - cardiac muscle
b. Digestive system - cartilage
C. Respiratory system - pancreas
d. Nervous system - marrow

Answers

Answer:

B

Explanation:

Answer:

A

Explanation:

The Circulatory System is a system that circulates blood around the body.  Cardiac Muscle refers to your heart, which is a prominent part in the Circulatory System.

How do community contribute in maintaning the health of ecosystem??

Answers

Answer:

THE MATEMÁTICAS 163 por eso

explain the following type of respiration with diagram in toad:
1..Buccal respiration
2..Cutaneous respiration
3.. Pulmonary respiration​

Answers

Answer:

1.Buccal pumping is "breathing with one's cheeks": a method of ventilation used in respiration in which the animal moves the floor of its mouth in a rhythmic manner that is externally apparent.

2.Cutaneous respiration, or cutaneous gas exchange, is a form of respiration in which gas exchange occurs across the skin or outer integument of an organism rather than gills or lungs.

3.Pulmonary ventilation is commonly referred to as breathing. It is the process of air flowing into the lungs during inspiration (inhalation) and out of the lungs during expiration (exhalation.

Yan Lang po Sana makatulung

Help me please!!!!!!!!!!!!!!!!!j

Answers

Answer:

50%

Explanation:

Any trait that helps an organism survive and reproduce under a given set of environmental conditions

Answers

Answer:

tempature and time

Explanation:

In all the laboratories the benches are placed at right angles to windows. Why

Answers

Answer:

in case of emergency

Explanation:

You've been experiencing acid indigestion lately, and you'd like a quick fix for the problem. You do a little research on the Internet and discover that your problem is caused by excess stomach acid. In the pharmacy aisles, however, you're having a little trouble deciding what to purchase to address the problem. At the pharmacy counter, the clerk recommends that you purchase PEPCID AC or Alka-Seltzer tablets. You want to design an experiment to compare the effectiveness of Pepcid AC tablets and Alka-Seltzer tablets. Which of the following facts would be least likely to complicate your experiment and the analysis of your results?

a. PEPCIO AC and Alka-Seitzer tablets contain different ingredients.
b. PEPCID AC and Alka Seltzer tablets contain different concentrations of the antacid drug.
c. The recommended dosage for PEPCID AC and Alka-Seltzer tablets is different.
d. PEPCIO AC and Alka-Seltzer tablets are sold in different countries throughout the world,

Answers

Answer:

d. PEPCIO AC and Alka-Seltzer tablets are sold in different countries throughout the world.

Explanation:

When there is excess acid in the stomach then Alka-Seltzer tablet can be used. The Ph level of these tablets is higher than 7 because acidic reaction need to be stopped with an introduction of base.

Anorexics are often hungry but refuse to eat, which is misleading because the literal meaning of anorexia is “__________.” A. unhealthy dieting B. excessive hunger C. excessive weight loss D. loss of appetite

Answers

Answer: D

Explanation:

Answer:

D edge 2021

Explanation:

Can we depend on nonrenewable energy resources for our energy needs?

Answers

Answer:by

Explanation:

Answer:

Explanation: The answer is yes we can. We are depending on them now and they supply most of our needs to live.

Hope this helps and feel free to copy and paste it :)

Transcribe the following DNA strand: ATGCATTGCGAT

Answers

Translation: UACGUAACGCUA
Transcription: tyr, val, thr, leu
5′ CAGTCAAGCAT 3′

Explanation: This sequence is complementary and in the correct orientation.

what grow downward into the soil to form roots

please answer fast

Answers

Answer:

Explanation:

The primary root, or radicle, is the first organ to appear when a seed germinates. It grows downward into the soil, anchoring the seedling. In gymnosperms and dicotyledons (angiosperms with two seed leaves), the radicle becomes a taproot

The rotation of the earth causes winds to shift and ocean currents to change. This is an example of?
A) inertia.
B) cyclones.
C) acceleration.
D) topographical variation

Answers

Answer:

d) topographical variation

Explanation:

How many proton , neutrons , and electrons are there barium ?

Answers

Answer:

137.327 atomic mass units

hope this helps

Explanation:

Answer:

56 protons, 81 neutrons and 56 electrons

Explanation:

hope that helps

How many objects must be present in a system to demonstrate gravity as a force of attraction?

Answers

Answer:

Explanation:

Knowing the value of G allows us to calculate the force of gravitational attraction between any two objects of known mass and known separation distance. As a first example, consider the following problem.

Search in the internet a picture that demonstrates a skill in harvesting/capturing animal/fish?. Paste the picture below.​

Answers

https://images.app.goo.gl/vCAczhDoFTzKwUit9 This picture demonstrates skill because the person is using multiple tools at once to capture fish.
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