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LenaWriter [7]
3 years ago
6

True or false: When the magnetic field is pointing to the north, this is called an anomoly

Biology
2 answers:
prohojiy [21]3 years ago
7 0

Answer:

false

Explanation:

podryga [215]3 years ago
6 0
Answer:

False

Explanation:

An anomoly is a weak spot in the earth’s magnetic field. The magnetic field does not need to face a certain direction for this anomoly to be persistent.
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Which of the following best describes an aspect of a membrane's molecular structure that causes it to be selectively permeable?
atroni [7]

Answer:

<u>d. Transport proteins within the membrane serve as a tunnel for molecules to enter the cell. </u>

<u />

Explanation:

Solutes are typically moved across the cell through either passive or active transport. The cells, surrounded by a bilipid layer or plasma membrane is amphiphlic- its polar, hydrophilic lipid heads face outwards, while their non-polar hydrophobic lipid tails face inwards towards each other.

While lipid-soluble molecules move across the layer easily, it is also difficult for charged and also large molecules to move across its surface, into the cell. Transmembrane channels, <u>embedded within the membrane</u>, help to maintain selective permeability as transport proteins, pores and gated channels. Simple diffusion happens as a method of passive transport in cells through plasma membranes.

The solutes travel through the plasma membrane in the process of diffusion from regions of high concentration to regions of low concentration; this occurs without the use of energy. <u>Molecules moving against their concentration require active transport mechanism to cross the membrane</u>.

3 0
3 years ago
If humans change the function or equilibrium of one of Earth's systems, this will not change
joja [24]

Answer:

False.

Explanation:

All of the things found in the Earth system can be categorized into four (4) main categories and these includes;

I. Land: this subsystem forms a sphere which is generally referred to as litosphere.

II. Water: this subsystem forms a sphere which is generally referred to as hydrosphere. It comprises of landforms such as mountains, valleys, plateaus, ridge, rocks, etc.

III. Air: this subsystem forms a sphere which is generally referred to as atmosphere. This sphere comprises of gases such as oxygen, carbon dioxide, nitrogen, etc.

IV. Living organisms: this subsystem forms a sphere which is generally referred to as biosphere. It comprises of all living things such as humans, animals and plants.

If humans change the function or equilibrium of one of Earth's systems, this will significantly change the function or equilibrium of all of Earth's systems. Consequently, these changes result in environmental phenomenon such as volcanoes, earthquakes, tornadoes, wildfire, etc.

6 0
3 years ago
ANSWER FOR BRAINLIEST QUICK PLEASE.
masha68 [24]

Answer: You had it correct

Explanation:

A derived trait is any trait that is carried down species through a cladogram.  Thus, all of the previously listed traits are derived, because they were passed down to species furhter on the cladogram.

7 0
3 years ago
Answer the following questions based on the article you just read.
levacccp [35]

Answer:

Light microscopes can only magnify up to 2000 times the original size. It is difficult to enhance the contrast between cells and their surroundings to see cell structure and movement with a light microscope.

Explanation:

k12

HAPPY FRIDAY!

HAVE A GREAT WEEKEND!

sorry caps!

Please give crown for more!

AND PLZ ANSWER MY Q!

7 0
2 years ago
1. A(n) _____ bond forms when two atoms share one or more pairs of electrons.
sertanlavr [38]
Covelent

<span>When electrons are transferred then ionic bond is formed and when electrons are shared then covalent bond is formed.</span>
7 0
3 years ago
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