explain the geologic time scale?

Answer:

If surface type affects friction, then cars on concrete will skid slower than cars on ice.

Explanation:

This answer choice addresses both the independent and dependent variables. Surface type is the Independent variable, and the dependent variable is the speed the car skids.

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If surface type affects friction, then cars on concrete will skid slower than cars on ice. This statement is correct and the correct hypothesis.

A scientific hypothesis is a theory that offers a speculative explanation for a phenomenon or a specific group of related events that have been observed in the natural world. The capacity to be supported or disproven by observation and experimentation are the two main characteristics of a scientific hypothesis, and they are embodied in an "If...then" statement that summarises the notion.

In the middle of the 20th century, British philosopher Karl Popper, who was of Austrian descent, established the idea that a scientific theory might be both falsified and tested.

The scientific method, the strategy used by scientists to try to comprehend and evaluate theories regarding natural events, includes the formation and testing of hypotheses. The process of developing a hypothesis is commonly referred to as creative and is based on prior scientific understanding, intuition, or experience.

Therefore, the correct hypothesis is the statement, that if surface type affects friction, then cars on concrete will skid slower than cars on ice.

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Answer:

Case Studies, Checklists, Interviews, Observation sometimes, and Surveys or Questionnaires are all tools used to collect data. It is important to decide the tools for data collection because research is carried out in different ways and for different.

Explanation:

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Answer:

A teenager's decision to drink alcohol can be influenced by: early introduction to alcohol. exposure to adult binge drinking or alcohol dependence. access to alcohol from parents and others.

Answer:

Cell division is the process by which a parent cell divides into two or more daughter cells. Both of these cell division cycles are used in the process of sexual reproduction at some point in their life cycle. Both are believed to be present in the last eukaryotic common ancestor.

Explanation:

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Answer:51

Explanation:

Answer:

without amino acids you're body will break down in a way

Explanation:

well, amino acids of proteins help build structure and regulate the body's tissues and organs.

Answer:

There are seismic activity at the margins of the crustal plates , I think

The last sentence contributes to the development of the MAIN idea of the paragraph because it describes the revolution as the effect of a combination of different factors.

The fragment presented describes the privileged situation of Europe that allowed it to interact with the other regions of the world easily due to its location.

Europe remains at the "center" of market and exchange flows between Asia, America, and Africa. This dynamic caused it to be influenced by other cultures, which allowed it to develop scientific revolutions.

Accordingly, the last sentence of the fragment serves to illustrate the result of the favorable location conditions that Europe had concerning the other regions.

So the correct answer is C because it illustrates the main effect of a combination of different factors.

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Answer:

Explanation:

Explanation:

make an observation

ask a question

from a hypothesis or a testable explanation

make a prediction based on hypothesis

test a prediction

iterate: is the results to make new hypothesis or prediction

Answer:

When the low point in the sun's 11-year cycle, the Sun's magnetic field fills up with the poles, ending in slower time sunspots.

Explanation:

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Answer:

Lipids

Explanation:

Lipds are fats

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Answer:

What action shows a creative approach to the process of scientific inquiry? Answer Expert Verified Thus, to achieve the creative approach above the researchers must utilize and apply the scientific method in gathering, interpreting and analyzing empirical evidence.

Explanation:

Answer:

Dennis Meadow's, asserted that due to the expanding human population, the ecosystem will collapse by the middle of the twenty-first century.

Answer:

They should be tested several times over to check for corrections and investigated further.

They should be tested many  times over to check for corrections and investigated further.

Scientific thinking is a type of knowledge that includes intentional information seeking, including asking questions, testing hypothesis and making observations as well as recognizing pattern.

The scientific or scientists are clear as to the purpose at hand and questions at the issue. The scientific essential standards that should be implies on the elements of scientific thought such as clarity relevance depth, breath, logic and accuracy.

The scientific  thinking prefers to thinking about the content of science and the set of reasoning process.

The example of scientific thinking is that question information, conclusions and points of view which is strive to be accurate, relevant and precise.

Therefore,they should be tested many  times over to check for corrections and investigated further.

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Answer:

True

Explanation:

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Explanation:

It controls muscle contraction.

Use of acids and bases in daily life

Explanation:

Uses of Acids. Uses of Bases

Trichloroacetic acid - removes warts, fouls wine Ammonium hydroxide – smelling salts

Acetyl salicylic acid – aspirin Aluminum hydroxide - fire extinguishers

Carbonic/phosphoric acid –. Bbbcarbonated drinks - KOH – alkaline batteries

Tartaric acid –. baking powder Calcium carbonate chalk, Tums

troposphere

Explanation:

the troposphere is starting at ground level

A cell sends messages to itself via autocrine signalling. So the correct option is B.

The type of cell signalling in which a cell releases a signal from itself and then that signal binds to the same cell. The chemical signal that is released from the cells is known as autocrine agents or autocrine signals.

Autocrine agents are usually hormones or chemical signals. They act as ligands and then bind to the receptors that are present in the cells that have produced them. Such kind of receptors is known as autocrine receptors.

When the autocrine agents bind to the autocrine receptors, autocrine stimulation occurs. This is a chemical reaction that is induced within for the necessary functions that need to happen.

This autocrine signalling is observed at early developmental stages and organ formation happens. These are for pain sensation & inflammation regulation.

Cells infected with viruses also produce autocrine signalling. Autocrine signalling also has an important function in cellular homeostasis. For example, progesterone is important as an autocrine signal molecule in breast cancer.

Therefore, the correct option is B.

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Answer:

Image result for Identify an example of an Ecosystem Service?A. All of the above. Pollination. Red tide. Deforestation

It's these long-term changes that are of particular concern to the authors, who review recent scientific literature to produce four examples of ecosystem services that are negatively affected by deforestation and degradation: carbon storage, water flow, regional climate influence, and disease vectors.

Explanation:

Answer: These changing quantities are called variables. A variable is any factor, trait, or condition that can exist in differing amounts or types. An experiment usually has three kinds of variables: independent, dependent, and controlled. The independent variable is the one that is changed by the scientist.

Explanation:

Answer:

We do not know entirely for sure

Explanation:

The vast majority of evidence points towards complex multicellular plants and animals evolving around the same time 500 million years ago during the Cambrian period. However, simple single-celled prokaryotic bacteria has been around for nearly a billion years. Personally I think it is more likely for plants to have come first as they are simpler and there seems to be a bit for evidence for them being first, like the discovery of multicellular algae that could be up to 1 billion years old (algae is generally considered to be bacteria)

It may be analyzed that land plants first appeared about 500 million years ago. It was the time of the Cambrian period. At this time, the development of multicellular animals does not begin at a systematic level.

The first prokaryotic cell was formed about 3.5 billion years ago. It was the time when no oxygen was present (anaerobic), the atmosphere was reduced, and the mode of nutrition was hetero chemotrophic.

The first eukaryotic cell was formed about 1.5 billion years ago which leads to the foundation of animal origination. It stimulates numerous changes with respect to the prokaryotic cell. But prior to that some land plants and fungi are already present which deliver the source of food to the developing living entities.

Therefore, according to researchers and scientists, it may be analyzed that the land plants exist before the animals through the help of the earliest fossils.

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Answer: D. Mitochondrion

Explanation:

The mitochondrion is always the powerhouse of the cell!

Answer:

B

Explanation:

The circulatory system is a network consisting of blood, blood vessels, and the heart. This network supplies tissues in the body with oxygen and other nutrients, transports hormones, and removes unnecessary waste products.

Answer:

The circulatory system work at tissue level by following points

=nutrients are delivered throughout the body

Explanation: