b and d would kill pop
c has pop leaving
The amount of Births will raise a population I hope this helps
What explains why there is usually lush vegetation on one side of the mountain and a dry, desert-like climate on the other side? A) lower levels of sunlight on the windward side of the mountain B) higher levels of pollution on the leeward side of the mountain C) lower levels of nutrients on the windward side of the mountain D) lower levels of precipitation due to a rain shadow on the leeward side of the mountain
D) lower levels of precipitation due to a rain shadow on the leeward side of the mountain.
Mountains stop rainy whether at one side of the mountain which results in lush vegetation on that side and results in the rain shadow on another side.
Rain shadow is that patch of land which is dry and warm because of lower level of precipitation as a result of blockage of rainy weather in opposite site by mountains. This side is called the leeward side. Dry warm climate is present at this site.
Example of rain shadow is dry basins east of the Cascade Range, The Great Basin of Nevada and Utah. These are found in North America. So the correct answer is D.
D lower levels
White perch is a fish that is native to Atlantic coastal regions and is invasive to the Great Lakes. It feeds on native species and is thought to be the cause of decline of the Great Lakes walleye fish populations
The correct answer is B.
Here is the full question with the options attached to it:
White perch is a fish that is native to Atlantic coastal regions and is invasive to the Great Lakes. It feeds on native species and is thought to be the cause of the decline of the Great Lakes walleye fish populations. What was most likely its mode of introduction?
A. Produce brought from the eastern states
B. Trapped in a ship's ballast or a water tank
C. Trapped in a cargo crate carrying nonperishable items
D. Luggage brought in an overseas flight.
An invasive specie refers to a living organism that is not native to a particular environment but is brought to that environment either intentionally or accidentally.
Presence of invasive specie is usually detrimental to the overall well being of animals that are native of the concerned environment. Invasive specie can be introduced into an area via different methods. An example of invasive specie is White perch fish. It was brought into the Great Lakes accidentally trapped in ship's ballast or water tank.
Answer: the correct answer is b
Explanation: took the test and got it right
What two substances control the movement of materials into and out of the cell
Some of the proteins and lipids do control movement of materials into and out of the cell.
What is the vascular ring around the pituitary gland?
A client who just has been diagnosed with primary open-angle glaucoma (poag) refuses therapy. the nurse reinforces that it is important for the client to seek treatment. which goal is the nurse trying to achieve?
How does the adaptive immune system have memory? Why is this helpful for staying healthy?
The adaptive immunity of a person's body has the ability to make different antibodies against different antigens. These memory cells of the adaptive immune cells remember the antigen which once invaded the body of a person. When next time, the same antigen attacks the body, the memory cells immediately recognize it and immediately a response is generated by making the particular type of antibodies.
This phenomenon is helpful because it allows response to be generated by the immune cells at a much faster rate once the body has recognized the antigen. It prevents a person from getting sick from the same antigen each time.
A scientist is studying a population of frogs in a pond. One day, copious amounts of pesticides are mistakenly released into the pond, killing off the majority of frogs (leaving only a few survivors). When the researcher revisits this pond five years later, he notices that the genetic diversity of this frog population has been dramatically reduced (compared to pre-pesticide levels). This is not an example of which of the following? a. genetic driftb. nonadaptive evolutionc. the bottleneck effectd. the founder effecte. All of the answer options are correct.
Genetic drift occurs when random mutation increases in frequency in the gene pool and results in the increase in frequency in the alleles in the population which is not the case in this situation.
Non-adaptive evolution refers to evolution not affected by fitness. In this case, a few frog species survived, indicative of fitness ability of some frog species to survive the pesticide and hence this is an adaptive evolution.
Bottleneck effect and founders' effect are not relevant. The difference between founder events and population bottlenecks is the type of event that causes them. A founder event occurs when a small group of individuals is separated from the rest of the population, whereas a bottleneck effect occurs when most of the population is destroyed. Bottleneck effect might be prevalent here but I am not too sure either.
How would an abundant number of herbivores affect competition among predators?
The more abundant the food supply, the less competition there would be among the predators I think.
Carbohydrates are more easily metabolized than lipids. However, on a gram-for-gram basis lipids provide cells with more?