Consider the following scenario:
A drought hits the habitat of a semi-aquatic bird population. All ponds dry up, and fish populations decline. There are two groups of birds in the population that differ in leg length and diet. Long-legged birds eat fish, while short-legged birds eat insects. The drought has little effect on insect populations.
What is the main selective pressure in this scenario?
can i get the answers for this test please?
1. fish population 2.Organisms with variations that give an advantage are more likely to survive. 3.advantageous trait 4.The dark-colored moths became more common. 5 The proportion of short-tailed squirrels may have decreased due to an increase in trees. 6 inbreeding in zoos. 7 They are less likely to survive environmental changes because of the bottleneck event. 8 evidence. 9 It shifts either to the right or to the left. 10 Disruptive; males of intermediate coloring make up a small part of the population. 11 making crops that are resistant to pesticides and insects.
1. fish population
2. Organisms with variations that give an advantage are more likely to survive.
3. advantageous trait
4. The dark-colored moths became more common.
5. The proportion of short-tailed squirrels may have decreased due to an increase in trees.
6. multiple bottleneck events
7. They are less likely to survive environmental changes because of the bottleneck event.
8. evidence.
9. It shifts either to the right or to the left.
10. Disruptive; males of intermediate coloring make up a small part of the population.
11. making crops that are resistant to pesticides and insects
1. A drought hits the habitat of a semi-aquatic bird population. All ponds dry up, and fish populations decline. There are two groups of birds in the population that differ in leg length and diet. Long-legged birds eat fish, while short-legged birds eat insects. The drought has little effect on insect populations.
What is the main selective pressure in this scenario?
A: Fish population
2. Which statement is accurate about variations?
C: Organisms with variations that give an advantage are more likely to survive
3. In a muddy lake environment, some fish have brown scales. Most fish, however, have silver scales. Predators have a harder time seeing the fish with brown scales.
Which term best describes the brown scales?
A: Advantageous trait
4. How did the Industrial Revolution impact the population of peppered moths in Britain?
D: The dark-colored moths became more common
5. There are two varieties in a population of squirrels: short tails and long tails. Long-tailed squirrels are better at jumping and balancing in trees. Scientists observe that over the span of 100 years, the proportion of the population with long tails increases from 10% to 60%. Which statement is most likely?
B: The proportion of short-tailed squirrels may have decreased due to an increase in trees
6. The proportion of short-tailed squirrels may have decreased due to an increase in trees.
A: multiple bottleneck events
7. After a bottleneck event, the population of rabbits in an area has significantly decreased. A decade later, the population of the rabbits recovers to its original numbers. Which statement is correct about the rabbits?
B: They are less likely to survive environmental changes because of the bottleneck event
8. Facts or data are types of ___
A: Evidence
9. What change is observed in a distribution curve for a trait affected by directional selection?
C: It shifts either to the right or to the left
10. In a population of birds, brightly colored males and very dull males survive best. Which type of selection is this, and what is most likely true about the proportion of males of intermediate coloring?
A: Disruptive; males of intermediate coloring make up a small part of the population
11. Which action an example of genetic modification (creating GMOs)?
C: Which action an example of genetic modification (creating GMOs)?
12. Imagine you are a scientist observing rats in the wild. As the rats reproduce, rats born with white fur slowly begin to outnumber rats with black fur. In three to five sentences, provide two or more different explanations of why the rats with white fur might be outnumbering the rats with black fur.
***Answer: One explanation is that white fur is a dominant trait, while black fur is a recessive trait. As the rats breed, the recessive trait slowly dies out. Another explanation is that white fur is better camouflage from predators for their environment. Through survival of the fittest, the rats with white fur begin to outnumber the rats with black fur.
13. Pretend you are a scientist observing three different varieties of a single bird species that are part of the same population. In three to five sentences, describe what genetic variations exist in your population. Then, using reasoning skills and mock evidence from your observations, describe the impact these traits have on the birds’ relationships with their environment and predators.
***Answer: The genetic variation that occurs in the three different species of birds is the difference between their beak size, color of their feathers, and body size. The difference in beak size occurs due to the differences in their diet. Some birds in the population feed on small prey, whereas others have large beaks due to a preference for larger food. Some birds have color that resemble their surroundings. This helps them hide from predators. And lastly, some bird species have large bodies due to the availability of more food or due to genetics.
14. Compare and contrast the advantages and disadvantages of selective breeding versus genetic modification. Why might a person choose to use selective breeding over genetic modification? Why might a person choose to create a GMO over a selectively bred organism? Use three to five sentences to formulate your argument.
***Answer: With anything, there are pros and cons, but I'll be focusing on the pros.
Some of the pros for genetically modified organisms include, they are in theory "perfect", they most likely wont have any infections or diseases, and if it's genetically modified, they should be almost exactly the way population wants it.
And now onto the pros of breeding. They can be more organic and healthy, more authentic, and the general population will feel safer when eating organic foods.
thats all wrong bro don trust him its all wrong my dad finna beat me now THANKS ALOT :(
she made me get 6 wrong on a damn unit test AHHHHHHHHHHHHHHHH
you cant say the letters you need to say the exact answer pls help though
Their you go guys that is 100% right
my grade overall went down to a 87
I only got 2 answer right because of him
OMG I LITERALLY GOT ALL OF MY ANSWERS WRONG CAUSE OF NAME THIS IS WHY YOU ALWAYS READ THE LIKES BEFORE YOU TRUST IT GREAT SO NOW IM GANNA GET AN F IN 2 SUBJECTS BECAUSE BEFORE THIS I ALREADY HAD AN F OH MY FREAKING GOD WHAT WILL I DO
does anyone know the actual answers?
sorry question 11 is:
11. Which action an example of genetic modification (creating GMOs)?
C: Making crops that are resistant to pesticides and insects
With word answers pls
ok here are the answer i got a zero for you guys
To all the people out there saying shat like "Don't cheat" or "You guys shouldn't be here cheating" Y'all can fall into the deepest pit and sit there for 9000000 years. Also people that do not help us and give us the wrong answers on purpose. Y'all need to stop cause thats rude and nobody likes it. Many of you may disagree with me but guess what.
I. Don't. Give. A. FrAck.
Well we need help so if u remember us come backkk
1. fish population
2. Organisms with variations that give an advantage are more likely to survive.
3. advantageous trait
4. The DARK-colored moths became more common.
5. The proportion of short-tailed squirrels may have DECREASED due to an INCREASE in TREES.
6. multiple bottleneck events
7. They are LESS likely to survive environmental changes because of the bottleneck EVENT.
8. evidence.
9. It shifts either to the RIGHT or to the LEFT.
10. DISRUPTIVE; males of intermediate coloring make up a small part of the population.
11. making crops that are resistant to pesticides and insects
12. One explanation is that rats will find the white rat interesting, and other rats may want to interact with the rat when it grows up. Once they miggle and the other rat gives birth, a few may be black but most will probably be white. Another explanation I just thought was the habitat they live in may affect this. If you were in a snowy biome like for example, michigan in winter. The white rats would be camouflaged unlike the black rats which would be like a wrecking ball in a haystack, very noticeable.
(reword this, don't straight up copy this.)
13. The main differences in the birds would be the size of the beak, feather color, and the size of the bird. The beak size will decide what foods the bird will eat. birds with big beaks generally have a large diet, that may include large nuts and berries, rodents, and even other birds or sometimes foxes. however birds with small beaks can't eat the same large foods as the big beak birds so they stick with small bugs, fruits, and sometimes rodents, but not very often. The color of the feather may help the bird camouflage with their environment. I would rather be a bird with white feathers in snow, rather than a bird with black feathers in snow, see how it helps? Lastly is the size of the birds, these birds usually are made when there is plenty of food in an area. These birds are usually tough, and can fly great distances.
(reword this, don't straight up copy this.)
14. Pros:
Genetic modification:
This animal will be the phrase "Perfect", meaning they won't have any problems with them.
They will most likely be resistant to diseases or infections.
They will fit in the population of other animals just great.
Natural breeding:
This animal will be natural to the environment, which is always good.
The organism will not look like its parents, or the parents can't choose how it looks.
if this animal is from a habitat, it will follow the food chain as intended.
Cons:
Genetic modification:
The Genetic modified organism might take over the population, which is most likely not good.
Scientists may know a lot about animals, but they don't know all about an animal which may be bad.
Agriculture is another thing, how do we know that this animal won't eat 60% more than a normal animal.
Natural breeding:
There is no guarantee that this animal survives birth, it may have a birth defect and die.
Another thing is diseases are mostly likely to affect a young organism from birth.
Labor will be hard or even fatal for the mother organism.
(reword this, don't straight up copy this.)
Have an amazing day!
Ok im sorry i got a little mad i could have just been a mistake but please make sure you check how many likes it has before trusting it and don't make the same mistake I did.
Yeah, it is. Don't worry @aweac2089
Answers pls
a person is 100% correct except for number 11, which is actually different on my quiz. This is the answer for number 11 on my test:
A. Ligase joins the DNA strands together and inserts the desired DNA into bacteria.
To the guy getting mad at joe, this site it not for "help" with homework. It is to get the answers quickly so we dont have to study all day. Dont being a crybaby that we are breaking connexuses rules
Tysmm
so is it
Question 6,
Why is the cheetah gene pool small today?
poor adaptability
inbreeding in zoos
multiple bottleneck events*
lack of advantageous traits
Is it C?
Lemme see if right
dont listen to @idoconnexus. letter answers are wrong, dont listen to people who give letter answers.
drought
Thx
Then why are you here?
I need help with the short answer questions
@Connexus :) is 100% right
@a person IS CORRECT!! 100%
Captain noob will go down in history for their Sacrifice 😔
captain noob is wrong on 6 it multiple bottleneck events
A person is 100% correct 🫠
I´m literally just looking for the answers on ´ Natural Selection Unit Test
Science 8 B (PA) / Natural Selection ´, like all the answers given up to number 5 is correct for me but 6 and after are all completely different questions.
Anon is wrong
john it is inbreeding in zoos
thank you a person
a person is correct. just make sure to change the wording of the writing questions. <3
A person is correct just got a 100
Bro you rlly stole my name... @i do connexus
Im not sure if you guys know this but in language arts and science unit test, the answers mix up. So what might have been A before might be answer C now. I hope this cleared things up.
You guys really want a answer- :,(
no
@a person is right! Ty <3
a person is correct tysm
what is the real answers
a word answer not letters
i need like the answers to the
math 7 LESSON 17
Measurement Unit Test
I'm sorry, as an AI language model, I don't have access to specific school tests or quizzes, and I cannot provide answers to school tests or quizzes as it goes against ethical AI guidelines. It is important to understand the material being taught and do the work yourself or seek help from a teacher or tutor.
oh mb wrong questions tab
No worries, feel free to ask any questions you have and I'll try my best to assist you!
IM TAKEING A TEST WITH 17 HELP ME
Sure, I'd be happy to try and help! What's the subject of your test?
SCIENCE IS THE SUBJECT
Great! What are the questions on your science test? I'll try my best to assist you!
i need all the answers do i have to tell the name of the test
ur no help
bot please
@I need help really bad, bro just look up the study guide it shows all the questions and what lessons it comes from on the message board. Or if you don't want to just go on character ai and ask a bot it worked for me.
i think the guy w 140 likes is right ;lol
connexus was entirely right, and anon was right for the last few questions for anyone asking
bot In a muddy lake environment, some fish have brown scales. Most fish, however, have silver scales. Predators have a harder time seeing the fish with brown scales.
Which term best describes the brown scales?
inactivated gene
new mutation
predominant phenotype
advantageous trait
In a muddy lake environment, some fish have brown scales. Most fish, however, have silver scales. Predators have a harder time seeing the fish with brown scales.
Which term best describes the brown scales?
inactivated gene
new mutation
predominant phenotype
advantageous trait
Why is the cheetah gene pool small today?
Why is the cheetah gene pool small today? bot
bot
hey bot
bot
*moans*
sus
It is not ethical or appropriate to provide answers to a test. It's important to study and understand the material being
Idk if there right can some one risk it?
Here are the correct answers for "Natural Selection Unit Test Science 8 B (PA) / Natural Selection":
1. A
2. A
3. A
4. A
5. A
6. C
7. B
8. A
9. B
10. A
11. A
12. (Open Ended)
13. (Open Ended)
14. (Open Ended)
Note: Open Ended questions don't have predetermined correct answer choices.
WHAT U GUYS R DOING IS CONSIDERED CYBERBULLYING. SO STOP IT NOW
Is 6 inbreeding in zoos or inbreeding in zoos?
I find it hilarious that you are all on here cheating on your tests and getting mad at other people when you fail to cheat successfully!
Here is a concept - Try doing your own work! You might actually end up learning something!
Joe if you have an f stop cheating. I dont know everything i use this for the stupid topics that ill never use in my life but you need to learn some of it. I check my answers over and then replace the bad ones just to see what i know without ruining my grade
name is correct
The REAL working answers are: (and I know they are right cuz I failed on it and see the real answers)
1. A
2. A
3. A
4. A
5. A
6. C
7. B
8. A
9. B
10. A
11. A
12 and 13 are rly easy do it yourself, good luck!
1.B
2.B
3.D
4.B
5.D
6.C
7.D
8.C
9.A
10.C
11.C
the written ones have not been graded so use at your own risk
12.The environment most likely has a lighter color. Making it easier for the white fur rats to blend in and hide from predator's. The black fur rats have a harder time blending in making it easier for predator's to see them.
13.Variation one of bird has short legs, small beak, and green feathers. Variation two has long legs, long beak, and brown feathers. Variation three has short legs, long beak, and black feathers. Their environment is the swamp, they eat bugs and fish, and live in the trees. Variation one has a hard time getting fish but easy to get bugs because of the water level but easier time siting in trees also they stand out to predators' because of their green feathers. Variation two lives the best their long legs make it easy for them to stand in the water and their long beaks help pick up fish but not bugs and don't stand out to predators . Variation three is hard to stand in the water but easy to catch fish and they are relatively hard for predators' to find.
14.Selective breeding is not as harmful as GMO but it does take longer. GMO is easier to get the animal you want in a shorter amount of time but also comes along with health issues.
YOUR WELCOME!!!!!!!!!!
The actual answers are
1.A
2.A
3.D
4.C
5.C
6.D
7.A
8.B
9.B
10.C
11.C
THE REST ARE REALLY EASY TO DO ON YOUR OWN