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DaniilM [7]
1 year ago
9

Help asppp!!

Biology
1 answer:
m_a_m_a [10]1 year ago
3 0
The theory of continental drifts has been modified based on the new observations to become the theory of plate tectonics
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Which of the following choices is not a key characteristic to differentiate cancer cells from normal cells?
nataly862011 [7]

Answer:

cells that should not invade other tissues do invade other tissues

Explanation:

6 0
3 years ago
Which property results from the crystal lattice structure of ionic compounds? A. low melting point B. good electrical conductivi
lions [1.4K]

Answer:

C.) crystalline solids

Explanation:

The solid materials may be crystalline or amorphous. The concept of crystal structure is related to the organization of atoms in a geometrical form. Crystalline structures are present in various materials, where atoms distributed within their structure form a network called the crystalline lattice. Therefore, crystalline structures have salts, metals and most minerals. Crystalline structures are formed by unit cells that are their basic unit, as they constitute the smallest set of associated atoms found in a crystalline structure.

The molecules of the crystalline structures can have two types of bonds, the directional ones, which include the covalent and dipole dipole and the non-directional ones where the metallic, ionic, van der Walls bonds. When formed by ionic compounds, these crystalline structures can result in crystalline solids.

5 0
3 years ago
Joe, a hiker, stands at the top of a hill on a trail above the ocean. Joe's friend Dave is just starting out at the trailhead, w
Rashid [163]

Answer: 1, 2, 4 are accurate.

Explanation:

1. Joe is on a hill (on a trail) above the ocean. The beach and ocean are at similar altitudes. Therefore Joe is at a higher altitude than if he was at the beach.

2. Since Joe is on a hill, he has a higher altitude than at sea level. Air at a higher altitude has lower density because there is less air "ontop" of itself than at lower altitudes. As well, his hill is above the ocean, which means there is a lot of water, making the air more humid than where he is. Humidity also makes air denser.

4.The air pressure will decrease if Joe goes up to higher altitudes because there will be less air on top of itself.

4 0
3 years ago
Read 2 more answers
Protists can be harmful for which of the following reasons?
sergejj [24]

Answer:

The answer is both  the first (Cause disease) and second (Cause algal blooms)

Explanation:

Protists may cause disease and even kill living things. Also, algal blooms are essentially protists but have chloroplasts- which plays a part in them being harmful.

6 0
3 years ago
Read 2 more answers
How does the decrease in biodiversity impact an ecosystem?
enot [183]

Answer:

because the more alike species are The more they have to adapt to try and compete with one another So the more different a species is the less they have to compete

3 0
3 years ago
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