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baherus [9]
3 years ago
7

Please Help!!! Hurry!!!

Biology
1 answer:
sleet_krkn [62]3 years ago
4 0
Edwin Hubble used the Doppler effect to determine that the universe is expanding. After years of scientific research and observation of different celestial bodies through a telescope, Hubble found that the light from distant galaxies was shifted towards the red end of the spectrum. This red shift indicates that stars are moving away from us and from each other. This phenomenon is called the 'expansion of the universe', also known as the big band theory.
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which of these properties, used alone, would be least useful in identifying most minerals? A color B luster C streak D density
Tomtit [17]

Answer:

A-color

Explanation:

Minerals could have the same color, and you can't depend on color to tell you that.

6 0
3 years ago
Read 2 more answers
How many chromosomes are found in the organism that results from the union of a human sperm cell and an egg cell?
Liono4ka [1.6K]
A human has a total of 46 chromosomes (23 from daddy and 23 from mommy). :)
A sperm cell has 23 chromosomes and an egg cell that has 23 chromosomes. 23 + 23 equals 46. Sometimes (due to mutations), a person
may have less chromosomes than they need. This may cause some problems like Turner syndrome(treatment can help aid the situation but, it can't be cured).
Hope this helps you :)

5 0
3 years ago
Why do the phospholipids surrounding the cell form a bilayer?
mezya [45]
<span>A cell is surrounded by water, there is also a lot of water inside.</span>


-The tail go together







8 0
3 years ago
Birds migrating, cats chasing prey, sea turtles moving toward the ocean immediately after birth, and joeys moving to the mother'
Lapatulllka [165]

The answer is 'instinct'. This is innate complex behavior exhibited by an organism that is not learned. Some common examples are dogs shaking themselves dry when wet, honeybee communication via intricate dances, animal courtship behavior during mating season and the building of nests by birds.

7 0
3 years ago
____________________ are structures inside cells that perform specific functions and are often enclosed in membranes; these can
SashulF [63]

Answer:

Organelles

Explanation:

Living cells of organisms contain structures within them that perform specific functions for the cell. These structures are called ORGANELLES. Organelles are organ-like structures that are specific about their function in a cell.

Both the cells of prokaryotes and eukaryotes possess organelles, however, the organelles in eukaryotes are bounded by a membrane e.g mitochondrion, chloroplast etc. while those of prokaryotic cells are not bounded by a membrane.

The organelles inside a cell can be seen with the aid of an electron microscope. Examples of organelles are chloroplast (functions in photosynthesis), mitochondria (functions in production and storage of cellular energy), ribosome (functions in protein synthesis) etc.

4 0
3 years ago
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