Which one of the following interspecies relationships has a negative effect on the abundance of both species?

1 answer:

8 0

D. Competition. Competition is a negative type of interaction among organism of the same (intraspecific) and different (interspecific) species. Organisms often compete when there is less resources in the environment. Because other organisms may be consuming or defending a resource, other organisms that need it need to compete, thus reducing the growth and survival of both competing organisms.

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Evolution _____.

butalik [34]

Is the slow change in the gene pool of a species or population

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2 years ago

The excretory system helps the respiratory system by

Leto [7]

Answer:

The excretory system helps the respiratory system by removing carbon dioxide that is produced during respiration (third option).

Explanation:

The lungs are in charge of the breathing process, being the main organ of the respiratory system. Each lung is considered an excretory organ —belonging to the excretory system— since it is capable of eliminating the carbon dioxide (CO₂) produced by the metabolism during expiration.

As a result of the gaseous exchange, the oxygen entering the lungs through the inhaled air passes into the blood, while the CO₂ is removed from the blood. This CO₂ is removed during expiration, which makes the lungs part of the excretory system.

The other options are not correct because:

The excretory system does not introduce more oxygen into the lungs.
The circulation of blood in and out of the lungs is a function of the circulatory system.
Urine is not produced by breathing.

6 0

2 years ago

Read 2 more answers

When RNA is processed in the nucleus and made ready for transfer out into the cytoplasm for protein synthesis, which of the foll

IRISSAK [1]

Answer:
Letter E - exons are cut from the strand and removed

Explanation:

Letter A and B are incorrect because the poly-A tail and guanine cap are added to the 3’ and 5’ end respectively. They aid in translation of the mRNA, while serving as protection. The poly-A tail is repeated adenine nucleotides, while the guanine cap is a modified guanine nucleotide.

Letter C is incorrect because alternative splicing is one mechanism for generating variation, and is thought to be one of the reasons for why humans have smaller genomes than other organisms and still maintain high complexity. Alternative splicing is incredibly important because it produces more than one transcript from a pre-mRNA.

Letter D is incorrect because introns are the non coding portions of the mRNA. They are excised to make a smaller mRNA transcript, and one that contains all the protein genes.

This letter E is the correct answer, because exons are the coding portions of the mRNA, and are not excised during RNA processing.

Hope that helped! If I made a mistake, please let me know.

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3 years ago

Some cells have several nuclei per cell. how could such multinucleated cells be explained?

Serga [27]

Cytokinesis did not occur properly during the cell cycle. Ie. the splitting of the cytoplasm was not done. hence the genetic materials are separated in two distinct nuclear envelope. if this continued of non-cytokinesis,then more distinct nuclei can occur

7 0

3 years ago

4. The density of water is 1g/ml. Knowing this, do you think either the dice or book would float in water? Why

Tanzania [10]

The dice would be able to float bc of mass

3 0

2 years ago