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navik [9.2K]
1 year ago
11

Unionid mussels are native to the Hudson River in New York State. In the early 1990s, zebra mussels were introduced into the Hud

son River. The table shows the number of unionid mussels and zebra mussels over the course of six years.
How did the population of unionid mussels change after zebra mussels were introduced? Why did this change occur?
Biology
2 answers:
tekilochka [14]1 year ago
8 0
They decrease because the zebra mussel were taking their resources. Leaving them nothing to eat.
nika2105 [10]1 year ago
8 0

Answer:

sample:

Explanation:

The population of unionid mussels in the Hudson River decreased after zebra mussels were introduced. Zebra mussels, a nonnative species, competed with the unionid mussels for food. The zebra mussels were able to outcompete the unionid mussels, allowing the zebra mussel population to increase dramatically over six years. The unionid mussel population decreased due to a lack of food.

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Answer:

The correct answer is "Fist sequence; Fourth sequence; Second sequence; Third sequence".

Explanation:

Inversion of DNA is a process that often occurs during evolution of chromosomes. It occurs when the breakage of a chromosome in two places, results in the reinsertion of a DNA but in a reversed fashion. The evolutionary order of predecessors of inversion of DNA can be established by looking on the number of nucleotides that are different in the sequences of DNA. In this case, the first sequence is the ancestor and it haves the sequence "ABCDEF". The second in the evolutionary order is the fourth sequence since it originates from the first sequence only by changing the "BC" nucleotides to the end of the sequence "ADEFBC". The third in the evolutionary order is the second sequence since it still starts in AB, but has the other four nucleotides different: "ABFEDC". The last in the evolutionary order is the third sequence, which is completely different and reversed respect to the first sequence: "FEDABC".

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2 years ago
Working out the order in which the individual components in a signaling pathway act is an essential step in defining the pathway
Naily [24]

Answer:

In the usual signalling pathway, PK2 triggers and initiates PK1. We can deduce this from the fact that if PKI is fully initiated, a response is seen and the response is seen as not dependent on the status of PK2, which pinpoints to the fact that PK2 is promoted ensuing of PK1. Let's infer that if the experimental setup happened to be altered in such a way as it causes PKI to be mutationally non-functional and PK2 possessed a stimulating mutation, no response can be said to be seen due to the fact that PK2 won't initiate PK1.

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If the kangaroo rat were to lose that heat by water loss (the only mechanism left in the heat balance equation), how much water
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Explanation:

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7 0
2 years ago
Uno larguito, dos más bajitos, otro chico (small) y flaco (skinny), y otro gordazo (fat). ¿qué son?
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They are the fingers. The long one is the middle finger, and the two smaller ones are the pointer and the ring finger. The small and skinny is the pinky finger, and the fat one is the thumb.
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2 years ago
Are there any similarities between this Galapagos research and Darwin’s research? Explain your answer.
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Answer: This modern-day researcher used some of the same theories that Darwin proposed. Like Darwin and his finches and tortoises, this scientist understood that the Galapagos cormorants inherited flightless wings. Darwin eventually discovered that his Galapagos finches likely evolved from other species of finches on the mainland. This evolution was similar to how the flightless Galapagos cormorants evolved from other species of cormorants.

Explanation:

6 0
1 year ago
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