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DiKsa [7]
3 years ago
7

Which two phenomena are evidence that gravitational forces are attractive? Select two statements.

Biology
1 answer:
Vinvika [58]3 years ago
7 0

Answer:

A. the rise and fall of the tides.

C. a dropped object always falls toward Earth.

Explanation:

Gravity is considered to be a universal force of attraction which acts between all objects that has both mass, energy and occupy space. Therefore, it acts in such a way as to bring objects together.

Additionally, the gravity of earth makes it possible for all physical objects to possess weight.

The two phenomena which are evidence that gravitational forces are attractive includes;

I. The rise and fall of the tides: this is caused as a result of the gravitational force of attraction exerted by the moon on earth.

II. A dropped object always falls toward Earth: this acceleration is due to the gravitational force of attraction between the Earth and the object.

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Match the terms to the descriptions:cytoplasm , epithelial tissues, nucleus, organelles, organs, system, DNA, connective cells,
DiKsa [7]

DNA to 8. the genetic blueprint for all cells

Nucleus to 5. acts as the "brain" of a cell

Connective cells to 9. tendons, blood, and fat are examples of these cells.

Epithelial tissues to 6. designed to regulate temperature, secrete lubricants, and protect the body from harmful substances.

Cytoplasm to 7. fluid like substance in a cell

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5 0
3 years ago
What is the velocity of a wave
r-ruslan [8.4K]

Answer:

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Wave velocity in common usage refers to speed, although, properly, velocity implies both speed and direction. The velocity of a wave is equal to the product of its wavelength and frequency (number of vibrations per second) and is independent of its intensity.

Explanation:

8 0
2 years ago
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Explain Your Reasoning Place an "x" in the appropriate box if the characteristic could describe science, pseudoscience, or both.
alex41 [277]

Pseudoscience may sometimes permit personal opinions as evidence.

<h3>What is pseudoscience?</h3>

The term pseudoscience refers to the reliance on logical explanations rather than empiricism to explain the observations in the universe. We know that science is empirical and results must be reproducible.

It is important to emphasize that the difference between science and pseudoscience is that science has an emphasis on empiricism and experiments are the only way that we could validate. Most of the earliest approaches to the study of the universe depended on pseudoscience.

The study of the natural world is the concern of both science and pseudoscience. The explanations in pseudoscience may sound logical but the results generated by science can be tested by others. The explanations of science can be proven false.

Lastly pseudoscience may sometimes permit personal opinions as evidence.

Learn more about pseudoscience:brainly.com/question/12257058

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8 0
2 years ago
NEED HELP HEREE :)
Lubov Fominskaja [6]
1.The correct answer is D
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2.The correct answer is D
The phylum is one of the highest ranks of classification, right under the rank of kingdom, so it contains a great number of species. For example, the phylum of Arthropoda contains all the insect, spider, crustacean and millipede species.

3.The correct answer is B
Before the methods of genetics and molecular biology research were developed, species were classified only based on their physical appearance. But now, we can determine how closely related species are by their genes as well. This solves the problem of species that have developed convergent traits as a response to similar environments, but that, in fact, are not genetically similar.

4.The correct answer is C
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5.The correct answer is D
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6. The correct answer is A
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7.the correct answer is B
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8. The correct answer is D
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9. The correct answer is D
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10. The correct answer is B
Molds are fungi that are dependant on moisture. They are not photosynthetic and they lack flagella, so the most efficient way to eradicate molds would be to dry out the area and the lack of moisture will cause the disappearance of the mold.
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3 years ago
How are lipids formed? Identify the process
babunello [35]
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3 0
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