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Pavlova-9 [17]
3 years ago
9

Darwin hypothesized that new species could appear gradually through small changes in an ancestral species.what experiment did he

conduct to test this hypothesis?
Biology
2 answers:
Elanso [62]3 years ago
6 0
Answer;
He conducted an experiment with breeding pigeons. 

Explanation;
The pigeons provided the perfect animal to test his theory of selection for quite a number of reasons including its trait diversity from wing structures to color patterns to size to flight patterns. From these experiments he concluded that by natural selection of randomly occurring traits that make species better suited for survival and reproduction, evolve in the astounding diversity of organisms on Earth today. 
natali 33 [55]3 years ago
5 0

Answer:

I think that the answer is B

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What is the difference between point source and nonpoint source water pollution
Komok [63]
Point source means: the pollution that comes from a single point (examples)

Sewage pipes releasing sewage into a ditch

Smokestack style factory chimneys

Oil pipes


Pollution which is caused by rain fall or snow melting into the ground. As the runoff moves, it picks up and carries away natural and human made pollutants, Finally reaching a lake, river, ocean, groundwater.







4 0
3 years ago
Which is the term for numbers that appear in the chemical formulas of some compounds?
iogann1982 [59]

It is called subscript indicating the number of atoms.

Explanation:

The chemical compound is formed by two or more elements.

The compound is formed by the sharing, accepting or donating the electrons.

The compound formed by two elements will have different valencies of cations and anions.

In chemical formula of compound specific number of atoms of each element are present.

eg: H2O (2 atoms of hydrogen bonded with one atom of oxygen)

       NaCl  (1 atom of sodium and one atom of chloriine are bonded.)

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8 0
2 years ago
Where would you find hemoglobin that is about 65% saturated with o2 in a healthy resting person?
liberstina [14]

The hemoglobin that is about 65% saturated with o2 in a healthy resting person Systemic veins & pulmonary arteries.

<h3>Define Hemoglobin?</h3>

Hemoglobin is a protein in red blood cells that takes oxygen to body's organs and tissues and elates carbon dioxide from organs and tissues back to your lungs.

Thus, Systemic veins & pulmonary arteries are correct.

To learn more about hemoglobin click here:

brainly.com/question/15011428

#SPJ4

5 0
1 year ago
PLEASE HURRY!!! taking a test and need help
Lelu [443]
B I’m pretty sure ! Hope this helped
3 0
3 years ago
Read 2 more answers
Why are the rhizobium bacteria beneficial to plants?
zepelin [54]

Answer:

supplies nitrogen to the crop

Explanation:

they form a symbiotic relationship with bacteria also known as nitrogen fixation

6 0
3 years ago
Read 2 more answers
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