Answer: no it was brought by accident
Explanation:In the case of zebra and quagga mussels, the introduction to the U.S. was accidental. They were probably brought to the Great Lakes as stowaways in the ballast water of a cargo ship that came from Europe or Asia. Ballast water is taken aboard to maintain stability and is discharged when new cargo is added to the ship.
Which of the following have improved farming practices and crop production? Select all that apply.
Increased number of farmers
Sophisticated irrigation
Chemical fertilizers
Chemical pesticides
Answer:
sophisticated irrigation, chemical fertilizers, chemical pesticides
Explanation:
The use of irrigation to provide needed water and the use of natural fertilizers to promote crop growth are farming methods that have been practiced for centuries. More sophisticated irrigation techniques, various chemical pesticides, and modern chemical fertilizers have been developed in the twentieth century.
Which of the following would change the allele frequencies of a population?
A)Lack of mutation in the DNA
B)Mating is random with no selection occurring
C)A population on an island remains isolated and no one leaves or moves on the island
D) All of the answer choices would change allele frequencies of a population.
Answer: option B.
B)Mating is random with no selection occurring
Explanation:
This will cause change in allele frequency because it's a genetic drift which is the change in the frequency gene variant that is common in a population due to random sampling or random mating. When this occur it lead to a change in percentage or incidence of gene variant in a population since there is random sampling without any selection.
Mating is random with no selection occurring, which would change the allele frequencies of a population.
What would increase the allele frequency in a population?Natural selection can drive microevolution, or a difference in allele frequencies over time, with fitness-increasing alleles becoming more common in the population over generations.
Thus, option"B" mating is random with no selection occurring.
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How is information from the field of embry ology used as evidence for evolution
After cell division, the 2 new cells have ________________ the number of chromosomes as the parent cell.
Answer:
the same.
Explanation:
they are a straight replica of the parent cell. that's why they copy dna and everything before division
Answer: Half
Explanation: After cell division, the two cells formed are haploid cells meaning that they have half the chromosomes of the parent cells.
How are the metric system and SI related?
Answer:
The metric system is a superset of SI. The metric system is based primarily on powers of 10 relating units—not only within a category of measure (such as length) but across categories.
Explanation:
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4. A frog has been brought into the rehabilitation clinic and seems to have reddened
skin. The frog seems to have abnormal posture.
Diagnosis
Treatment
Other symptoms or treatment
Answer:
look for any bleeding or sores. look at the red legs. diagnosis with red leg disease. prescribe antibiotics orally. follow up in a week. meanwhile keep the frog away from other frogs.
Explanation:
Which type of fungus is shown in the diagram?
Answer:
Club Fungi
Explanation: This fungus is a Basidiomycota and is often found under microscope level.
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When a blue fish mates with a yellow fish, all the baby fish have blue or yellow stripes. What percent of the offspring will be striped if two striped fish mate?
Who was Thomas Malthus and what was the Malthusian growth model?
Answer:
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what controls the role of gravity in space
Answer:
Every object in space exerts a gravitational pull on every other, and so gravity influences the paths taken by everything traveling through space. It is the glue that holds together entire galaxies. It keeps planets in orbit. ... It can also cause life-destroying asteroids to crash into planets.
Explanation:
Which evidence best supports is the theory that organisms, such as whales , have common ancestry and have evolved ? Select all that apply
Answer:
Another evidence of evolution is the convergence of form in organisms that share similar environments.
Fossil record , comparative anatomy, DNA and molecular evidence and biogeography supports the theory of evolution.
What is theory of evolution?The theory of evolution is a scientific explanation for how living species have evolved over time and how new species have emerged. The hypothesis is predicated on the notion that all living things have a common ancestor and have evolved over time by natural selection.
Natural selection is the process through which specific features or characteristics, based on their capacity to aid people in surviving and reproducing in their environment, become more or less prevalent in a population over time.
The idea of evolution is largely regarded as the best explanation for the variety of life on Earth and is supported by a large amount of evidence from disciplines like genetics, palaeontology, comparative anatomy, and biogeography.
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Kennedy Space Center is located on Florida’s coast directly east of Orlando. It is one of several NASA centers and facilities around the country. Which of these activities happens only at Kennedy Space Center?
shuttle landings
manned launches
astronaut training
commercial launches
Answer:
Shuttle landing
Explanation:
Answer:
Shuttle landings
Explanation:
which is true about scientific theories
How does oxygen concentration in the atmosphere correlate with animal diversity?
Answer:
Oxygen burns the food within their bodies and releases energy for various activities and thus it helps animal to be alive. to use it in respiration. Animals need oxygen (O) to survive. In fact, all organisms need oxygen to complete the process to burning glucose for fuel.
Explanation:
A population of wolves migrates north in search of food. As the wolves travel, they enter a region that
has long, snowy winters. Some of the wolves have an allele that gives them white coats. This makes them
better able to sneak up on prey. Is this an example of natural selection? Explain.
Answer:
Yes
Explanation:
Natural Selection is not only when genes and alleles are passed down to children but also when your genes better adapt to your surroundings and the environment this shows natural selection
I need help with this question about meiosis
Why isolation can prevent pandemic
If we do not go out or just stay in our places so it can prevent the pandemic because there wouldn't be any contact between people and the virus may not spread from one person to another.
What does Binomial Nomenclature mean? (In the grand scheme people! No one-word answers!)
Which statement correctly defines asexual reproduction?
A. Asexual reproduction has 1 parent with similar offspring
B. Asexual reproduction has 1 parent with identical offspring
C. Asexual reproduction has 2 parents with similar offspring
D. Asexual reproduction has 2 parents with identical offspring
Answer:
A.)
Explanation:
We know that asexual means one. In this case, it would be A
., because there is one parent producing the cells. There may be some differences, which would make similar offspring, not identical offspring. So the answer would be A.) :) Hope this will help!
what from is inclined plane
Photosynthesis and cellular respiration are two of the main processes involved in the carbon cycle. Photosynthesis uses what is
produced in cellular respiration and provides what is needed for cellular respiration. In aerobic conditions, predict what would be
produced in cellular respiration. Choose ALL that apply.
es )
A)
ATP
B)
CO2
C)
H20
D)
02
E)
glucose
Answer:
A) ATP
B) CO2
C) H2O
Explanation:
The products of aerobic respiration are:
CO2, H2O, and ATP
O2 + C6H12O6 → CO2 + H2O + ATP
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In aerobic cellular respiration the products are ATP, CO2, H20, where as the reactants are 02 and glucose
What is the difference between aerobic and an-aerobic cellular respiration ?Cellular respiration is just opposite to photosynthesis where glucose break down to produce energy in the form of adenosine triphosphate or ATP.
If It occurs either in presence of oxygen called aerobic respiration and in absence of oxygen called anaerobic respiration.
Aerobic respiration where organism combine oxygen with food substances and produce biochemical energy in the form of ATP, release carbon dioxide, and water as by product.
It occurs in inner membrane of the mitochondria.
Example is glycolysis.
Anaerobic respiration occurs in the absence of oxygen, involve break down of sugar into lactate and it occurs in Cytosol of cell.
Fermentation is example of anaerobic respiration.
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Which of the following animals has a broad niche?
Snowy owl
Protists in termites
Sea slug
Raccoon
Which correctly lists the two elements that make up the empty space in the universe?
A. ice and debris
B. debris and dark matter
C. dark matter and dark energy
D. dark energy and dust
HURRRY PLEASEE
Answer:
D | Dark Matter and Dust.
Explanation:
Answer:
The correct answer is choice D.
Explanation:
In the empty room, the universe is gases and ashes. Even though humans think the exterior universe's blank space is nothing more than empty. Fortunately, the plasma form of its hydrogen and helium gases, including the various types of dirt and debris, occupy this void vacuum.
About how many genes are in every human cell?
Answer:
In humans, genes vary in size from a few hundred DNA bases to more than 2 million bases. An international research effort called the Human Genome Project, which worked to determine the sequence of the human genome and identify the genes that it contains, estimated that humans have between 20,000 and 25,000 genes.
Explanation:
What is an example of sexual reproduction?
differentiate between compression and rare faction
Answer:
Compression- a region in a longitudinal (sound) wave where the particles are closest together. Rarefaction- a region in a longitudinal (sound) wave where the particles are furthest apart.
Explanation:
Every offspring must get
A. one-half of their DNA from each of the parents.
B. a complete set of DNA from each of the parents.
Answer:
A
Explanation:
the mother gives half through the egg and the father gives half through the sperm
this is my thousands time asking: please help
the answers c
hope it helps!
Answer:
hey bro i think its A
Explanation:
Which of the following is NOT an example of evidence that supports the theory of evolution?
The Newfoundland moratorium on cod fishing was unsuccessful because
A) fishing capacity increased after the moratorium
B) political decisions were made against scientific evidence
C) fishing resumed almost immediately following the moratorium
D) fishing went as far as destabilizing the ecosystem
E all of the above
Answer:
D) fishing went as far as destabilizing the ecosystem
Explanation:
got it right on edge