Answer:
Factory runoff has a great impact to the environment especially if runoff is situated near river and water areas. Spilled chemicals in a runoff can cause algal bloom that kills aquatic animals by depleting water in oxygen. By polluting the waterways, pathogens may thrive and can harm not only animals but also humans. Those pathogens can be transferred to the local water supply and can be consumed by the residents.
1.Main clause:
A.The Mason-Dixon Line
B.The Mason-Dixon Line, which is perhaps the most famous border ever established by surveying methods
C.The Mason-Dixon Line has been designated a National Historic Civil Engineering Landmark
D.the most famous border ever established by surveying methods has been designated a National Historic Civil Engineering Landmark
E.has been designated a National Historic Civil Engineering Landmark
2.Subordinate clause:
A.which is perhaps the most famous border ever established by surveying methods has been designated a National Historic Civil Engineering Landmark
B.has been designated a National Historic Civil Engineering Landmark
C.which is perhaps the most famous border ever established by surveying methods
3.Subordinate clause functions as a(n):
A.adjective
B.adverb
C.noun
1. The correct answer is C. The Mason- Dixon Line has been designed as a National Historic Civil Engineering Landmark.
Main clause can also be referred to as independent clause. There is a verb and a subject in it and they express a thought which is complete.
2. Correct answer is C. Which is perhaps the most famous border which is ever established by surveying methods.
Subordinate clause can also be known as dependent clause. It starts with relative pronoun and it has both verb and subject. A complete sentence can not be formed in this combination.
3. The correct answer is adjective.
Subordinate clause functions the same way as adjective.
B) Inoculate infected amphibians with Jl, and determine whether the amphibians recover from infection by chytrids.
C) Take infected amphibians and assign them to two populations. Leave one population alone; inoculate the other with Jl. Measure the rate at which infection proceeds in both populations.
D) Take infected amphibians and assign them to two populations. Inoculate one population with a high dose of Jl; inoculate the other with a low dose of Jl. Measure the survival frequency in both populations.
Answer:
C: Take infected amphibians and assign them to two populations. Leave one population alone; inoculate the other with Jl. Measure the rate at which infection proceeds in both populations.
Explanation:
In scientific investigations, the best way to determine the effect of certain experimental factor on the population of study is to have a baseline for comparison. This is usually referred to as controlled experiment.
In the case of the observation that chytrid infection in amphibians seems to be inhibited by Janthinobacterium lividum, the best way experimental design is to get a population of amphibians suffering from the disease, divide them into two groups and subject them to the same conditions except the introduction of Janthinobacterium lividum to the skin of one of the groups.
A suitable method can thereafter be employed to measure the rate at which infection proceeds in both population. If indeed, the bacterium has the capacity to inhibit the infection, the rate of infection in the group with the bacterium will be significantly less than that of the group without the bacterium.
The correct option is C.
bryophyte
tracheophyte
sporophyte
the answer would be a tracheophyte! good luck on the rest of your tests!
the question is in the pic
Rewrite the sequence to show a substitution of a nucleotide in the DNA strand.
I took the test got it right here it a copy of the test showing I got it right hope this helps
B. They have a true body cavity.
C. They have two germ layers.
C. They have two germ layers.
Members of the phylum Porifera are not considered diploblastic because they do not have two germ layers. Instead, they have a unique level of organisation where their cells do not form tissues or organs. The term 'diploblastic' correctly applies to organisms like jellyfish or sea anemones that have two germ layers producing various tissues and organs.
Members of the phylum Porifera, often referred to as sponges, are not considered diploblastic because they do not have two distinct germ layers. Instead, they possess a unique level of organization in which their cells do not form tissues or organs. Confusingly however, they do have two layers of cells, but these do not equate to the germ layers seen in true diploblastic organisms like cnidarians.
In a true diploblastic organism, such as a jellyfish or sea anemone, the two germ layers - the ectoderm and endoderm, produce the various tissues and organs of the organisms. The jellyfish's tentacles and mouth, for instance, are produced by the ectoderm, while its digestive cavity is produced by the endoderm.
So, the statement that clarifies the term 'diploblastic' with respect to members of Porifera is not accurately represented by any of the provided options, since they are not truly diploblastic. The closest would be 'C. They have two germ layers', but this is still not technically correct for the reasons mentioned above.
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