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inn [45]
3 years ago
13

What was significant about the rocks Darwin found in the mountains?

Biology
1 answer:
mart [117]3 years ago
8 0
I assume some of them had fossils in them.
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Before classifying insects into different orders, review the larger classifications for insects:
sukhopar [10]

For an organism to be classified in the animal kingdom it is necessary for that organism to be eukaryotic and multicellular. In addition, he must not be able to produce his own food (he must be heterotrophic), and must eat by eating food taken from the environment.

To be classified in the dilo arthropoda, the organism must have an external skeleton, a segmented body and articulated legs.

To be classified in the insect class, the organism must have a separate body in the head, chest and abdomen, have two antennae, two pairs of wings and three pairs of legs.

4 0
3 years ago
You spot a sea snake while you are in a boat on the Atlantic Ocean and remark about how similar it looks to a snake that lives i
lukranit [14]

Answer:

c) Habitat isolation

Explanation:

Habitat isolation is a mechanism that prevents species from mating even if they don't have reproductive barriers. The differences in the habitat types may thus be sufficient to develop reproductive isolation between two (or more) populations

4 0
3 years ago
Select all that apply: Which of the following affect(s) the half-life of a radioactive substance?
frutty [35]

Answer:

The correct answer is option A, the type of isotope

Explanation:

The half life of a radioactive substance is a constant value and thus it is not affected by the temperature, catalyst or mass of the substance.  Basically it is the time taken by a radioactive substance to reduce its mass by half of its actual value. Radioactive decay takes place only when the atomic nucleus becomes unstable and thus the isotope type is the only factor which affects the radioactive decay of any element.  

8 0
2 years ago
Who is the first president of the Philippines​
77julia77 [94]

Answer:

There have been 15 Presidents of the Philippines from the establishment of the office on January 23, 1899, in the Malolos Republic. President Emilio Aguinaldo is the inaugural holder of the office and held the position until March 23, 1901, when he was captured by the Americans during the Philippine-American War.

Explanation:

hope this helps in some way

6 0
2 years ago
Read 2 more answers
A lightweight material is being tested for effectiveness in blocking ultraviolet (UV) rays from the sun that cause skin to burn
Tom [10]

The National Institutes of Health found it effective in reducing pain and other symptoms, but it is not clear how it works.
7 0
3 years ago
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