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lord [1]
2 years ago
9

Compare and contrast mutualism, commensalism, and parasitism.

Biology
1 answer:
fomenos2 years ago
7 0

Answer:

Mutualism is a symbiotic relationship in which both species benefit. Commensalism is a symbiotic relationship in which one species benefits while the other species is not affected. Parasitism is a symbiotic relationship in which one species (the parasite) benefits while the other species (the host) is harmed.

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In the Channel Islands Ecosystem described in this lesson, which of the organisms would you
Alex73 [517]

Answer:when visiting the Channel Islands, you can't help but be amazed by creatures such as the island fox, night lizard, deer mouse, island scrub jay, and ashy storm-petrel, just to name a few of the endemic species.  The Channel Islands were also once home to the pygmy mammoth, a now extinct dwarf elephant that evolved in this insular environment.

Along with these endemic species are many of what biologists call invasive species, species that originated from elsewhere but have found a home in the Channel Islands. These include sweet fennel, olive trees, and Australian blue gum trees. For a time, elk and deer could also be found here as well.

Explanation:

7 0
2 years ago
If a double-stranded segment of DNA has been found to have 23 purines and 15 thymines, how many guanines are there?
Serggg [28]

Answer: 4 Guanines

Explanation: Following Chargaff's ratio that describes the ration of purines to pyrimidines as 1:1, if there are 23 purines, it follows that there should be 23 pyrimidines; 15 Thymines should therefore be hydrogen bonded to 15 Adenines by complementary base pairing.

We are then left with 8 nucleotides composed of guanines and cytosines in complementary base pairs. This means that half that number (4) should be guanines and the rest cytosines.

8 0
3 years ago
E Process of Cell Division
UNO [17]

Answer:

Genetic information is bundled into packages of DNA known as chromosomes.

Explanation:

Chromosomes can be described as thread-like structures made up of genes. A genes can be described as a hereditary molecule which is made up of a segment of DNA. Hence, a chromosome contains genetic information packaged into bundles of DNA.

The number of chromosomes vary for each organism. For example, the number of chromosomes in each somatic cell of the human body is 46. These chromosomes occur in the form of homologous pars.

8 0
3 years ago
The Fill in the Blank is a small access port in the shell of a bean that allows water to reach the developing plant.
netineya [11]

Answer:

Scarification

Explanation:

3 0
3 years ago
Symbiotic relationships may evolve ?
Tpy6a [65]

Answer:

the last answer

Explanation:

over time by co-evolution of adaptations that reduce the harm or improve the benefit of the relationship

7 0
4 years ago
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