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faust18 [17]
3 years ago
6

Didn’t know about this one

Biology
1 answer:
victus00 [196]3 years ago
6 0

What exactly are you studying in biology?

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Over a long period of time, helpful variations in a species replace the unfavorable ones. This change can lead to
algol13

Answer:

Changes that occur in species, over a long period of time and that include the the replacement of unfavorable characteristics by helpful variations lead to evolution (second option).

Explanation:

Evolution, in terms of biology, consists of the genetic, anatomical and functional changes that occur in individuals of different species, acquiring useful characteristics that replace unfavorable characteristics, due to processes such as natural selection, proposed by <u>Charles Darwin</u>.

<u>Biological evolution</u> raises the existence of a common ancestor, from which all current known species are known, and an evolutionary line for each of those species. Evolution is considered the basis of <u>biodiversity</u>, due to the genetic changes it has produced over many years.

Learn more:

Evolution brainly.com/question/1596703

6 0
2 years ago
ASAP .   Which of the following animals could detect sound at a frequency of 67,000 Hz? 
deff fn [24]
C. BAT can detect sound at a frequency of 67,000 Hz. Its frequency range is 2,000 - 110,000 Hz67 - 45,000 Hz.

An elephant's frequency range is 16-12,000 Hz.
A tree frog's frequency range is 50 - 4,000 Hz
A dog's frequency range is 67 - 45,000.

Bats have very sensitive hearing to cope with their nocturnal activities. Since the feed at night time, they have difficulty in seeing their prey.

Bats navigate and locate their prey using echolocation. Echolocation is a method where bats produce a very loud sound and assess the sound's echo. The echo has two types of frequency. Constant frequency, used to detect object, and Frequency modulated, used to assess the distance of the object. Bats then know the presence of its prey as well as its location.

3 0
3 years ago
Which of the following does cell theory propose
artcher [175]

Answer and Explanation:

The cell theory has 3 parts:

- All living things are made of cells.

- Cells come from preexisting cells.

- Cells are the basic units of life.

Since this looks like a multiple choice problem, look for any answer choice that matches one of the three parts listed above.

Hope this helps!

6 0
3 years ago
A normal adult's pulse pressure should range from _____ to _____ mm hg.
Phantasy [73]
30 to 40.

Hope this helps !

Photon
6 0
3 years ago
A grocer stacks oranges in a four-sided pyramid that is 6 layers high. Solve for the number of oranges in the pile.
Vlada [557]
Each layer contains the square of the layer number.
<span>So,
Let's figure out :
1 squared = 1 </span>
<span>2 squared = 4 </span>
<span>3 squared = 9 </span>
<span>4 squared = 16 </span>
<span>5 squared = 25 
</span>6 squared = 36
<span>Hence,
The total number of oranges in the pile = 1+4+9+16+25+36
                                                               = 91 oranges
</span><span>
D. 91
</span>
5 0
3 years ago
Read 2 more answers
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