A person flies from one continent to another. Unknowingly, he boards the plane with a few seeds attached to the laces of his hiking boots. As he is hiking at his destination, these seeds drop off and become planted. The seeds grow and interbreed with a closely-related native species also found at that location. After a few generations, the population where the seeds dropped have flowers with different shapes compared to the surrounding populations in the forest.
This is an example of
A.
gene flow.
B.
genetic drift.
C.
selection.
D.
disruptive selection.
Which of the following mechanisms will MOST consistently result in populations that adapt to a changing environment?
A.
gene flow
B.
genetic drift
C.
selection
D.
natural selection
Which of the following could result in allopatric speciation?
A.
Two populations of a species are separated by a river that they are unable to cross.
B.
Two populations of a species are separated by a field that is too dry during the summertime.
C.
One group within a population mates during the evenings and another during the mornings.
D.
One group within a population develops a new mating ritual that is not recognized by the other.
Which process in a hybrid zone increases the likelihood of speciation?
A.
stability – when a hybrid zone remains the same
B.
reinforcement – when a hybrid zone widens and fewer hybrids are formed
C.
convergence – when a hybrid zone narrows and more hybrids are formed
D.
fusion – when a hybrid zone disappears and separate species fuse into one
Based on current knowledge, which cellular trait is MOST likely the oldest?
A.
photosynthesis
B.
multicellularity
C.
presence of a nucleus
D.
presence of chloroplasts
Adaptive radiation is when
A.
a species develops a new trait.
B.
several species move to a new location.
C.
the number of species in an area rapidly increases in number.
D.
the number of species in an area rapidly decreases in number.
Hox genes regulate the development of
A.
the body plan of an embryo.
B.
gametes.
C.
the respiratory system only.
D.
the circulatory system only.
Evolution results in an increase of organisms that are
A.
larger.
B.
more complex.
C.
better suited to the current environment.
D.
better able to adapt to changing environments.
Where on a phylogeny are ancestral organisms for two groups found?
A.
at the end of the rightmost branch
B.
at the end of the leftmost branch
C.
on the nodes between the two groups
D.
as a perpendicular line crossing a branch
]
Bacteria use ________ to break down hydrocarbons during bioremediation, just as humans use them to digest food.
Answer:
nitrogen-fixing hydrocarbon-degrading bacteria
Explanation:
Researchers have found that using nitrogen-fixing hydrocarbon-degrading bacteria to improve the bioremediation efficiency was another good strategy instead of providing nitrogen sources (Thavasi et al., 2006).
Fossil evidence suggests that the formation of pangaea 250 million years ago impacted the evolution of life by.
please...
Broccoli looks very different from wild Brassica oleracea. Is broccoli a transgenic plant? Explain your answer.
Broccoli, for example, is not a naturally occurring plant. It's been bred from undomesticated Brassica oleracea or “wild cabbage,” domesticated varieties of B. oleracea include both broccoli and cauliflower.
Within a seed, the embryo consists of a root and seed leaves, these seed leaves are called.
Answer: cotyledon, seed leaf within the embryo of a seed.
What can be done to reduce the production of carbon dioxide?.
Answer:
Probably not much.
We exhale carbon dioxide every second.
"Burn less trees." - thank you kaliliew16
Therefore, not much can be done.. We would have to all stop breathing to stop the flow of carbon dioxide, meaning we'd all die off quickly due to lack of oxygen.
hope it helps you!
Less wood could be burned, and it's leafs along with it, since they're both plants, and plants take in carbon and release oxygen, if they are burned they'll release all the carbon they stored, coal, oil, and natural gas contain carbon too, so in order to the reduce the production of carbon dioxide, we'd have to stop burning all of these less and less.
Why Frog is called an amphibian
Answer:
The word "amphibian" comes from a Greek word that means "both lives." This is because frogs start their lives in the water and then live on land, according to Defenders of Wildlife
Explanation:
Please give me brainliest;)
Answer:
it meets the common features of a amphibian
Explanation:
It has many amphibian features, such as is porous skin, and does not bear any scales, like a reptile, bears eggs, is slimy and loves water like a fish, but once they hatch and lose their lateral line and gills( except the hellbender, which only loses its gills), they need oxygen to breath, and cannot extract oxygen from water, and have relatively close features as gymnophiona and caudata.
What are lipids made of?
Answer:
"Lipids are an essential component of the cell membrane. The structure is typically made of a glycerol backbone, 2 fatty acid tails (hydrophobic), and a phosphate group (hydrophilic)."
Answer:
Lipids are generally the fatty acids of the carbon spheres of hydrogen and phosphorus
difference between stigma and anther
What is the difference between a spring a hot spring and a geyser?
Answer:
a geyser has an obstruction in its hydrothermal plumbing near the surface. In hot springs, water is allowed to circulate to the surface and move freely, giving off steam and heat. In geysers, constrictions keep the boiling water underground.
Explanation:
Hope this helps
If the femoral nerve was severed would that person be able to stand? why or why not?.
Answer:
Yes, but it would be hard to do so.
Explanation:
I tried to put up some information, but it said it was inappropriate.
Anyways, hope this helps! :)
You have learned about the ways viruses can disrupt human health and ecosystems. Can viruses also be helpful? Justify your answer.
Answer:
Bacteriophages are specialised viruses that only infect bacteria. Recently, bacteriophages have been tested on a patients in a critical condition. A patient was suffering from a bacterial infection in their chest cavity and the species of bacteria are naturally resistant to antibiotics and can even survive in alcoholic hand gel. The patient had no other hope left. So a few thousand bacteriophages were inserted in their chest cavity. After a few weeks the infection had completely disappeared.
How much did hickory farms pay for wicked good cupcakes.
The purchase of walnut farms paid for good and wicked cupcakes demonstrates a business transaction.
Did Hickory Farms Buy Wicked Good Cupcakes?Hickory Farms has acquired Wicked Good Cupcakes, which sells 5.71-ounce jarred desserts including Chocolate Lab Cupcake and Peanut Butter Cupcake. Cheers. Hickory Farms, known for its meat and cheese gift sets, has acquired Wicked Good Cupcakes, which sells 5.71-ounce jarred desserts
With this information, we can conclude that the purchase of walnut farms paid for good and wicked cupcakes demonstrates a business transaction.
Learn more about transaction in brainly.com/question/24730931
Hickory Farms acquired Wicked Good Cupcakes for an undisclosed amount.
Who are Wicked Good Cupcakes?Wicked Good Cupcakes was a company that was bought over by Hickory Farms in 2021. The company was a mother and daughter duo that were known for making delicious cupcakes.
In the year 2021, this company was bought over by Hickory Farms for an undisclosed amount.
Learn more about company acquisition here:
https://brainly.com/question/24519774
Certain kinds of shells are always found in rock layers lower than layers with plant fossils. Dinosaur fossils show up only in layers above or with plant fossils. What does this tell you about when these organisms lived?
Answer:
this shows that at one point these animals lived on the surface because there were plants for them to eat
Explanation:
Hope this helps you out!!!
If so please give brainliest <3
Because there were plants for them to consume, this demonstrates that these creatures formerly lived on the surface.
What were dinosaurs?The term "dinosaur" refers to a clade of reptiles that lived globally for approximately 180 million years and first emerged about 245 million years ago, at the start of the Middle Triassic Epoch. These reptiles were frequently quite enormous. Many lines of evidence currently indicate that one branch developed into birds around 155 million years ago, but the majority of them perished before the end of the Cretaceous Period, or approximately 66 million years ago.
The term "Dinosauria," which was first used to describe a small number of fragmentary specimens, is today used to refer to more than 800 generic names and at least 1,000 species, with additional names being added to the list each year as a consequence of international scientific research.
However, not all of these names correspond to actual taxa. Many of them were constructed using shattered or partial information that might have originated from two or more separate dinosaurs. Additionally, bones that are not actually from dinosaurs have occasionally been mistakenly classified as dinosaurian.
The number of dinosaurian species is believed to be 10–25 percent of the total historical variety, however, dinosaurs are well recorded by the numerous fossil remains found on every continent of the planet.
Therefore, this demonstrates that these creatures formerly resided on the surface because there were plants for them to consume.
Read more about dinosaurs, here
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What is a Punnett Square?:
A: A tool for showing possible alleles of offspring in a test cross
B: A tool for showing possible gametes of parents in a test
C: A tool for showing possible alleles of parents in a test cross
Answer:
A: A tool for showing possible alleles of offspring in a test cross
Explanation:
Punnet squares use the alleles of the parents to find possible alleles of their offspring.
All proteins
are made of
amino acids called
Answer:
polypeptide
Explanation:
Proteins are made up of hundreds or thousands of smaller units called amino acids, which are attached to one another in long chains. Proteins are therefore also known as polypeptides. Each type of protein has a unique sequence of amino acids, exactly the same from one molecule to the next.
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What type of t cell can directly attack and kill other cells, such as virus-infected cells?.
Answer: Effector cytotoxic T cells
Explanation:
Cells infected with a virus or another internal cellular infection are immediately killed by effector cytotoxic T cells.
explain why carbon monoxide is or is not an atom.
Answer: carbon monoxide is one carbon atom and one oxygen atom
Explanation:
Why does surface mining cause animals to leave an area?.
Is plasma membrane the same as phospholipid bilayer?.
Answer:
Like all other cellular membranes, the plasma membrane consists of both lipids and proteins. The fundamental structure of the membrane is the phospholipid bilayer, which forms a stable barrier between two aqueous compartments.
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A cowboy rides in to town on friday, he stays for 3 days and leaves on friday.
Answer:the horse name is friday
Explanation: (thats an odd name)
Which statement about enzymes is true? O An enzyme functions to decrease the rate of a chemical reaction.
O Enzymes are proteins that function as catalysts in nonliving things.
O Each enzyme can catalyze many different biochemical reactions.
O Enzymes and substrates fit together like a lock and key.
The stacks of disks in the chloroplast are called:.
those disks are called thylakoids and the stack is called thylakoid membrane
Mark and his brothers worked together to pick tomatoes. Each of the 4 boys picked 8 pounds How many pounds did they pick in all? the subject is math
Answer:
32
Explanation:
There are 4 boys who each picked 8 pounds.
Boy one- 8 pounds
Boy two- 8 pounds
Boy three- 8 pounds
Boy four- 8 pounds
All together- 32 Pounds
4 times 8= 32
From which location does seafloor spreading originate.
Answer:
Mid-ocean ridges
Explanation:
This is when a divergent boundary causes two plates to move away from one another resulting in the seafloor spreading because of the magma pushing up between the two plates which happens at the Mid-ocean ridge location.
Hope this Helps!
What makes one animal less adapted than another?
a.) It has failed to adapt to its habitat during its lifetime.
b.) It is smaller and less brightly colored than others.
c.) It has a shorter lifespan than others of its species.
d.) Its phenotype is less suited to its environment.
Answer: C
Explanation:
Becuase the shorter the life span the less time to evolve
Answer:D
Explanation: Got it right on a quiz
1. Name 5 simple crochet stiches.
Explanation:
Single Crochet Stitch.
Double Crochet Stitch.
Half Double Crochet Stitch.
Treble Crochet Stitch.
Slip Stitch Crochet.
Ammonia is a toxic nitrogenous waste that is produced in cells. Identify the excretory organ that involved in converting ammonia into less toxic chemical to be safely eliminated out of the body
Answer:
the kidneys
Explanation:
Mammals, many terrestrial amphibians and marine fishes mainly excrete urea and are called ureotelic animals. Ammonia produced by metabolism is converted into urea in the liver of these animals and released into the blood which is filtered and excreted out by the kidneys.
What unexpected result did Rutherford obtain in his gold-foil experiment?
What happens if mitosis Stops?
Answer:
If there is no mitosis, there would be no cell growth and cell reproduction. Most importantly, genetic information cannot be passed on. All cell functions would be hugely affected.
Explanation:
