Lobsters, fish, and starfish possess a central nervous system, while jellyfish do not.
The animals that possess a central nervous system from the given options are lobsters, fish, and starfish.
Jellyfish lack a true brain and have a system of connected nerve cells called a 'nerve net,' which is not considered a central nervous system.
Lobsters, fish, and starfish have a centralized nervoussystem, with lobsters and fish having a more complex organization of neurons including a brain, ganglia, and nerve cords.
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Answer:
Blackbird and Oriole : Varieties of swamps, shrubs, swamps, and dry grasses; foraging in arable land and water. The species is most commonly found in freshwater marshes, but in wooded or bushy marshes, weed fields, hay fields, and salt marshes also have levels on the upper edge. Usually foraging in other open habitats, such as fields and tidal flats; outside the breeding season, flocks of chickens gather in farmlands, pastures and feedlots.
Among the birds we are most familiar with, the red wings seem to sing nasal sounds on every swamp and wetland from coast to coast. They are particularly bold, and a few often attack larger birds, such as eagles or crows, and they fly over their nesting areas. When singing, the male's red shoulder patches are hidden under the body feathers most of the time, which is very beautiful. Outside the nesting season, red wings sometimes live in large areas.
That's why. Hope it helps.
Scientists monitor the migration habits of red-winged blackbirds in MA for reasons related to conservation, ecosystem dynamics, and tracking the effects of climate change.
Scientists would want to monitor the migration habits of red-winged blackbirds in Massachusetts for several reasons:
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B. Distribution of water and nutrients from the roots to the other parts of the plants is affected.
C. Distribution of water and nutrients to the flowers affects seed formation
C) The United States continues the war on the side of South Korea, in hopes of gaining ground from the communists.
D) The United States has withdrawn all of its troops except those along the Yalu River between China and North Korea.
The United States has troops in place to help patrol the demilitarized zone between North Korea and South Korea.
Answer;
The United States has troops in place to help patrol the demilitarized zone between North Korea and South Korea.
Explanation;
Up until the end of World War II, Korea had been a single political entity governing the Korean Peninsula, when the Soviet Union and United States each occupied the northern and southern halves respectively.
This division resulted to the founding of modern day North Korea and South Korea. Tensions between the two countries remain high as both countries each has an intention of bringing a unified peninsula under its own rule.
The United States has troops are in place to help patrol the demilitarized zone between North Korea and South Korea, this best describes the US involvement in the Korean Peninsula today.
The answer is: True) because earthquakes are cause by this friction build-up near the fault
B. Genetic equilibrium has been maintained.
C. Mutations have arisen that may have altered allele frequencies.
D. Individuals with new genes have immigrated into the population.
The correct answer is option C, Mutations have arisen that may have altered allele frequencies
There have been several instances where mutation in the gene of an insect is caused due to the harmful external environmental condition which are either created or occurs naturally. Usually, the organisms evolve themselves to sustain in an adverse environment condition. In the process of evolution, they go through the process of positive genetic mutation but sometimes the mutation may also produce negative effect on the DNA of an species through wrong or inefficient pairing/coding. Here in this case it can be stated that the chemical sprayed on insects might have attacked the gene pool of the insects thereby producing adverse genetic mutation.
When a farmer sprays insecticide on crops, the DNA of the insects that are not killed can be damaged, leading to mutations that may alter allele frequencies in the population.
A farmer spraying insecticide on his crops to kill unwanted insects has the effect of damaging the DNA of the insects that are not killed. This can lead to mutations that may alter allele frequencies in the insect population. Hence, the correct answer is C. Mutations have arisen that may have altered allele frequencies.
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