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Mars2501 [29]
3 years ago
12

The end of the ordovician period was signaled by

Biology
1 answer:
eimsori [14]3 years ago
3 0
According to historical accounts, through the use of advancements in technologies like the carbon dating, it is roughly estimated by scientists that the Ordovician Period lasted only for 45 million years. The end of its era was theorised to had signalled when there was a mass extinction of the marine animals.
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Explain E.O. Wilson’s theory of Island Biogeography as it applies to environments other than islands physically surrounded by wa
Lena [83]

The theory was originally developed as island biogeography, to explain species richness of actual islands, principally oceanic. It proposes that the number of species found in an undisturbed insular environment is determined by immigration and extinction.

Explanation:

Wilson of Harvard, developed a theory of "island biogeography" to describe such uneven distributions. They suggested that the number of species on any island displays a balance within the rate at which new species establish it and the rate at which residents of secured species become extinct.

8 0
3 years ago
Read 2 more answers
What is the name of the molecule that does the job of the scissors in and actual cell
iragen [17]

Answer:

Restriction enzymes

Explanation:

Restriction enzymes are also called 'molecular scissors' as they cleave DNA at or near specific recognition sequences known as restriction sites. These enzymes make one incision on each of the two strands of DNA and are also called restriction endonucleases.

4 0
3 years ago
Producers, consumers, and decomposers play important roles in the environment. Are there any organisms that would not fall into
choli [55]

Answer:

No, there are no organisms that will not fall into these categories

Explanation:

Living organisms interact with one another in their natural environment in order to ensure that energy needed for their metabolic activities is obtained. To do this, each organism plays different or specific roles. The roles that every organism must fall into are as follows:

- Producers are groups of organisms that have the ability to synthesize their own food using light (photosynthesis) or chemicals (chemosynthesis). Examples are green plants, algae, some bacteria etc.

- Consumers- These are organisms that lack the ability to synthesize their own food and hence depend on other organisms for their energy source. Consumers can either be herbivores (eat plants) or carnivores (eat flesh) etc. Examples are all animals etc.

- Decomposers- These are organism that have the ability to breakdown dead organisms into organic matter, thereby, adding nutrients back to the soil. Examples are fungi, bacteria, earthworm etc.

Based on this explanation above, no organism will not fall into any of these three categories. Some can even occupy two roles.

8 0
2 years ago
What sorts of external stimuli can affect homeostasis?
Margarita [4]

Answer:

disease, toxins, and pathogens

Explanation:

im pretty sure that that is the kinds of stimuli

7 0
3 years ago
Is this answer B or D ? Question !
Nadya [2.5K]

Answer:

B

Explanation:

Thats my best guess

4 0
2 years ago
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