Ask your own question, for FREE!
Physics 21 Online
OpenStudy (anonymous):

Desirable traits _____________ in populations because of the process of natural selection. become less common form are eliminated become more common

OpenStudy (anonymous):

@CGGURUMANJUNATH and @AnswerMyQuestions

OpenStudy (anonymous):

@SeaTurtle113

OpenStudy (seaturtle113):

The answer is become more common.

OpenStudy (anonymous):

@SeaTurtle113 can u help me with some more is very important

OpenStudy (seaturtle113):

Yes, I can try... I'm sorry I wasn't able to explain the answer... I should have done that.

OpenStudy (anonymous):

Natural selections need _________ in order to take place. a stable environment absence of diversity cloning competition

OpenStudy (anonymous):

@SeaTurtle113

OpenStudy (anonymous):

@Chineseboy15 and @kc_kennylau

OpenStudy (kc_kennylau):

I'd say competition but I'm not exactly sure

OpenStudy (seaturtle113):

Natural selection needs competition in order to take place.

OpenStudy (anonymous):

Natural selection eliminates the need for competition. is responsible for new traits in a population. allows populations to adapt to change. interferes with a species ability to adapt to change.

OpenStudy (anonymous):

@secret66

OpenStudy (anonymous):

@SeaTurtle113

OpenStudy (anonymous):

Wow! I just did this test today! Got a 20/20 on it!

OpenStudy (anonymous):

I think It's C.

OpenStudy (anonymous):

can u answer some more or me plz @AnswerMyQuestions

OpenStudy (anonymous):

The reproductive process that creates genetic variety in a population is asexual reproduction. cloning. sexual reproduction. nonsexual reproduction. @AnswerMyQuestions

OpenStudy (anonymous):

I learned that not long ago...

OpenStudy (anonymous):

A or C lemme see.

OpenStudy (anonymous):

It's C.

OpenStudy (anonymous):

Anymore?

OpenStudy (anonymous):

yes

OpenStudy (anonymous):

What are they?

OpenStudy (anonymous):

Individuals which produce the most offspring have traits that make them less successful in the environment. traits that are not well suited for the environment. traits that interfere with their ability to compete in the environment. traits that make them more successful in the environment.

OpenStudy (anonymous):

D. I think.

OpenStudy (anonymous):

and this one

OpenStudy (anonymous):

Describe the process of natural selection.

OpenStudy (anonymous):

This is an essay?

OpenStudy (anonymous):

yea

OpenStudy (anonymous):

Ok wait.

OpenStudy (anonymous):

ok

OpenStudy (anonymous):

Lemme look in my science lesson...

OpenStudy (anonymous):

Natural selection is when species born with a trait that's slightly different from what they are supposed to be turn out to have a bigger advantage in life.

OpenStudy (anonymous):

your awesome can u help me with some moree cause then i can go 4 wheeling @AnswerMyQuestions

OpenStudy (anonymous):

Sure!

OpenStudy (anonymous):

alright brb

OpenStudy (anonymous):

hey

OpenStudy (anonymous):

Hi.

OpenStudy (anonymous):

cna you awnser my question u seem smart

OpenStudy (anonymous):

Ok. I'll try.

OpenStudy (anonymous):

Acids form __________ ions in water. a. hydrogen c. positive b. hydroxide d. both a and

OpenStudy (anonymous):

I think it's hydrogen.

OpenStudy (anonymous):

one sec i got the questions now

OpenStudy (anonymous):

Which of the following best describes the probability of spinning a C on this spinner? A spinner is divided into four sections of different size. Each section is labeled as A, B, C, and D. Section D is the smallest. Section A and B are qual in size. Section C is the biggest. The arrow of the spinner is resting on C. less than twenty-five percent exactly twenty-five percent greater than twenty-five percent exactly one hundred percent

OpenStudy (anonymous):

@AnswerMyQuestions

OpenStudy (anonymous):

C.

OpenStudy (anonymous):

ok this is the next one

OpenStudy (anonymous):

Three friends are playing a board game in which moves are dictated by a spinner that has the numbers 1 through twelve equally distributed. Mariella is hoping to spin a 5 or a 9 on her next turn. Which of the following best describes this situation? certain events disjoint events impossible events overlapping events

OpenStudy (anonymous):

It's not C.

OpenStudy (anonymous):

what is not c?

OpenStudy (anonymous):

Because getting a 5 or 9 isn't impossible.

OpenStudy (anonymous):

Idk what is the right answer.

OpenStudy (anonymous):

Oh, I searched it online and there was a same question and someone said it was disjoint.

OpenStudy (anonymous):

do u know what flvs is?

OpenStudy (anonymous):

Yes. I do it too.

OpenStudy (anonymous):

so do u know what this is?

OpenStudy (anonymous):

6.02 Species Interaction. 1. What example does the lab use for mutualism? How do these organisms demonstrate mutualism? 2. What example does the lab use for commensalism? How do these organisms demonstrate commensalism? 3. Please fill in your hypothesis for the parasitism experiment: o The body weight of the lamprey living on a shark______________. o The body weight of the shark living with the lamprey________________. o The body weight of a lamprey living on its own___________________. o The body weight of the shark living on its own__________________. 4. Based on your observations , what effect does the lamprey have on the shark? 5. Compare and contrast these three symbiotic relationships. How are mutualism, commensalism and parasitism alike and how are they different? (hint: see chart above lab in the lesson).

OpenStudy (anonymous):

...

OpenStudy (anonymous):

OHHH! I JUST DID THAT LIKE YESERDAY!

OpenStudy (anonymous):

I'll paste mine in here.

OpenStudy (anonymous):

Wait, what is your name?

OpenStudy (anonymous):

What example does the lab use for mutualism? How do these organisms demonstrate mutualism? The example in the lab for mutualism is the relationship between flowers and bees. They demonstrate mutualism because they both benefit by increasing their chances of survival. When bees get food from flowers, the flowers reproduce because of pollenation. What example does the lab use for commensalism? How do these organisms demonstrate commensalism? The example in the lab for commensalism is remoras and sharks. The organisms demonstrate commensalism because the remoras feed on scraps of the sharks prey, and they get protected from their predators, and the shark does not get affected. Please fill in your hypothesis for the parasitism experiment: The body weight of the lamprey living on a shark increases. The body weight of the shark living with the lamprey decreases. The body weight of a lamprey living on its own decreases. The body weight of the shark living on its own does not change. Based on your observations , what effect does the lamprey have on the shark? The lamprey feeds on the blood from the shark and benefits from the shark's blood. Compare and contrast these three symbiotic relationships. How are mutualism, commensalism and parasitism alike and how are they different? (hint: see chart above lab in the lesson). They are all alike because all of them occur in nature, and they all involve 2 species. They are different because parasitism only benefits 1 species, and the other gets harmed. Commensalism benefits only 1 species also, but the other species is not affected. Mutualism benefits both species and does not harm any species.

OpenStudy (anonymous):

My teacher hasn't graded it yet.

OpenStudy (anonymous):

ohh yea what did u get though mine wont open bro

OpenStudy (anonymous):

Todd has 4 different long-sleeved T-shirts and 2 baseball hats. If he selects one of each without looking, which ratio represents the probability that he'll be wearing his favorite T-shirt and favorite hat? one-eighth one-sixth two-sixthts two-eighths next question @AnswerMyQuestions

OpenStudy (anonymous):

C.

OpenStudy (anonymous):

A bag contains 3 black marbles and 2 white marbles. Jake reaches in and selects one marble without looking. What is the probability that he gets a white marble? twenty percent forty percent fifty percent sixty-seven percent

OpenStudy (anonymous):

@AnswerMyQuestions

OpenStudy (anonymous):

B.

OpenStudy (anonymous):

If you were to choose one of the letters in the word PROBABILITY at random, what is the approximate probability that you'd select the letter B? nine percent ten percent eighteen percent twenty-two percent

OpenStudy (anonymous):

18?

OpenStudy (anonymous):

@AnswerMyQuestions

OpenStudy (anonymous):

Winona rolls a ten-sided die, numbered 1 through ten. What is the probability that she'll get an odd number or a 4? two-tenths four-tenths five-tenths six-tenths Question 7 (Multiple Choice Worth 2 points) Which word best describes the probability of any given person traveling to all seven continents in his or her lifetime? certain impossible likely unlikely Question 8 (Multiple Choice Worth 2 points) At a carnival game, a large horizontal board has twenty holes of the same size cut in it. For the game, you toss a ball onto the board and it lands or rolls into one of the holes. The board is surrounded on all sides, so the ball is certain to fall in a hole. Three of the holes will earn a small prize and one of the holes will earn a large prize. If Grady buys a ticket for one ball that he'll toss on the board, what is the probability that he'll win a prize? five percent fifteen percent twenty percent forty percent Question 9 (Multiple Choice Worth 2 points) How many outcomes are in the sample space for flipping three coins at once? 2 3 6 8 Question 10 (Multiple Choice Worth 2 points) Samuel selects one lettered tile at random from a bag that contains one of each letter of the alphabet. What is the probability that he'll select a vowel or a letter in his name? (vowels are A, E, I, O, and U) three twenty-sixths five twenty-sixths eight twenty-sixths

OpenStudy (anonymous):

@AnswerMyQuestions

OpenStudy (anonymous):

Hmm

OpenStudy (anonymous):

First is six-tenths.

OpenStudy (anonymous):

alright

OpenStudy (anonymous):

Next is unlikely.

OpenStudy (anonymous):

ok

OpenStudy (anonymous):

Next is 20%.

OpenStudy (anonymous):

Then next is 8.

OpenStudy (anonymous):

Then last one is C, the last one.

OpenStudy (anonymous):

we did it!!!!!!!!!!!

OpenStudy (anonymous):

so did u know the other thing cause i if i finish it i go 4 wheelin @AnswerMyQuestions

OpenStudy (anonymous):

6.02 Species Interaction. What example does the lab use for mutualism? How do these organisms demonstrate mutualism? What example does the lab use for commensalism? How do these organisms demonstrate commensalism? Please fill in your hypothesis for the parasitism experiment: The body weight of the lamprey living on a shark______________. The body weight of the shark living with the lamprey________________. The body weight of a lamprey living on its own___________________. The body weight of the shark living on its own__________________. Based on your observations , what effect does the lamprey have on the shark? Compare and contrast these three symbiotic relationships. How are mutualism, commensalism and parasitism alike and how are they different? (hint: see chart above lab in the lesson).

OpenStudy (anonymous):

@AnswerMyQuestions

OpenStudy (anonymous):

g2g

OpenStudy (anonymous):

Question 1 (Multiple Choice Worth 1 points) _______ cause(s) populations to change over time. Natural disasters Natural selection Weather Genes Question 2 (Multiple Choice Worth 1 points) Biological diversity includes a habitat. all of the different species living in the world. only the species with genetic variation. only species that asexually reproduce. Question 3 (Multiple Choice Worth 1 points) ______ is responsible for formulating the theory of evolution. Einstein Darwin Thomson Johnson Question 4 (Multiple Choice Worth 1 points) Low genetic diversity in a population can lead to extinction. growth. a large population. a small habitat. Question 5 (Multiple Choice Worth 1 points) A food web shows all of the following EXCEPT the relationship between predators and prey. that species may have more than one source of food. which animals are carnivores and which animals are herbivores. how to find information about animals online. Question 6 (Multiple Choice Worth 1 points) Living things change over time in response to the future environment fossil evidence cloning changes in their environment Question 7 (Multiple Choice Worth 1 points) Fossils can tell us about: phenotypes genotypes the future how species change over time Question 8 (Multiple Choice Worth 1 points) Predators are considered a(n) _________ limiting factor. biotic unimportant abiotic nonexistent Question 9 (Multiple Choice Worth 1 points) Bees collect nectar from flowers and, in turn, pollinate the flowers. This relationship is an example of commensalism. mutualism. parasitism. isolationism. Question 10 (Multiple Choice Worth 1 points) Which of the following is a way to increase diversity in a population? Add new individuals to the population. Isolate the population from all other factors. Prevent the population from reproducing. Feed the population different food. Question 11 (Multiple Choice Worth 1 points) Species diversity is defined as the number of habitats on a continent. the number of species that live in a given area. the number of individuals in a population. how different one individual is from the rest of the population. Question 12 (Multiple Choice Worth 1 points) Populations that have many different traits have low diversity no diversity partial diversity high diversity Question 13 (Multiple Choice Worth 1 points) A Bromeliad is a plant that provides water and shelter to frogs. The Bromeliad does not gain or lose anything in the relationship. This is an example of parasitism mutualism commensalism competition Question 14 (Multiple Choice Worth 1 points) A species is reintroduced to an area. Diversity in this area will fluctuate. stay the same. decrease. increase. Question 15 (Multiple Choice Worth 1 points) A clownfish and a sea anemone benefit from being together. Their relationship could be described as competition. commensalism. parasitism. mutualism. Question 16 (Multiple Choice Worth 1 points) Organisms with favorable traits will die before they are able to mate. pass those traits on to future generations. not pass those traits on to future generations. not be able to have offspring. Question 17 (Multiple Choice Worth 1 points) Populations with high levels of genetic diversity are _________ likely to adapt to changes in the environment. less not more somewhat Question 18 (Multiple Choice Worth 1 points) Some plants grow in trees and steal water and nutrients from the tree. This is an example of parasitism commensalism mutation mutualism Question 19 (Multiple Choice Worth 1 points) Diversity is greatest in areas with limited resources. small populations. many extinctions. many resources. Question 20 (Multiple Choice Worth 1 points) You would expect to find ________ in an ecosystem. only abiotic factors only biotic factors biotic and abiotic factors all the exotic factors Question 21 (Multiple Choice Worth 1 points) Natural selection would not take place without competition for resources deletions of genes cloning asexual reproduction Question 22 (Multiple Choice Worth 1 points) In order to decrease the genetic diversity of a population, you would need to add individuals to a population. only let individuals breed with other individuals that have very different characteristics. increase a population's territory. remove individuals from a population. Question 23 (Multiple Choice Worth 1 points) A species lives in its ________. relationship population habitat evolution Question 24 (Multiple Choice Worth 1 points) Three types of symbiotic relationships include trophism, parasitism, and communication mutualism, commensalism, and fragmentism mutualism, commensalism, and parasitism communalism, mutationism, and parasitism Question 25 (Multiple Choice Worth 1 points) Water is considered a(n) _______ limiting factor. unimportant biotic abiotic and biotic abiotic Question 26 (Multiple Choice Worth 1 points) Carnivores only eat which of the following? Plants Meat Both plants and meat Neither plats nor meat Question 27 (Multiple Choice Worth 1 points) The theory of _______ tells us that favorable traits will become common in a population over time. evolution natural selection translation mutation Question 28 (Multiple Choice Worth 1 points) We know of species that are no longer living because we have observations. written records. fossil evidence. we do not know this. Question 29 (Multiple Choice Worth 1 points) Food webs show how animals are connected. Food chains show how producers eat consumers. herbivores eat omnivores. energy is transferred. all life on Earth is connected. Question 30 (Multiple Choice Worth 1 points) Decomposers produce energy from the sun's rays. break down dead material in an ecosystem. produce energy by hunting prey. are found only in dry climates. Question 31 (Multiple Choice Worth 1 points) The process that allows for genetic diversity in populations is asexual reproduction. sexual reproduction. extinction. cloning. Question 32 (Multiple Choice Worth 1 points) Fossil evidence shows us that biological diversity has _____ over time. not changed increased become larger decreased Question 33 (Multiple Choice Worth 1 points) A tapeworm weakens its host, to the point of death. Their relationship is an example of competition. parasitism. mutualism. commensalism. Question 34 (Multiple Choice Worth 1 points) You find that there are 47 species living within 2 miles of your house. This is known as a habitat. a population. extinctions. species diversity. Question 35 (Multiple Choice Worth 1 points) When limiting factors _______, diversity in populations _________. decrease; increases decrease; decreases increase; increases stays the same; increases Question 36 (Multiple Choice Worth 1 points) A specific species that lives in an area is known as classification. speciation. census. population. Question 37 (Multiple Choice Worth 1 points) Species extinctions can cause which of the following? Decline in diversity. Natural disasters Spread of disease. Increase in diversity. Question 38 (Multiple Choice Worth 1 points) Variations in genotype through an entire population describes bio-diversity. genetic diversity. extinctions. species diversity. Question 39 (Multiple Choice Worth 1 points) A(n) _______ consumer eats producers. tertiary secondary omni primary Question 40 (Multiple Choice Worth 1 points) Some human actions that might result in a decrease in diversity in an area include destruction of habitat. formation of reserves. conserving resources. protecting species. Question 41 (Multiple Choice Worth 1 points) If you needed information on the relationships between predators and prey, you would consult a food chart. food network. food tree. food chain. Question 42 (Multiple Choice Worth 1 points) The theory of evolution does not say that populations change describe how life began support adaptation support the process of natural selection Question 43 (Multiple Choice Worth 1 points) Barnacles are stuck to a whale. The barnacles benefit and the whale is unaffected. This is an example of communication. commensalism. parasitism. mutualism. Question 44 (Multiple Choice Worth 1 points) Which of the following is not true of the relationship humans have with animals? Humans and animals compete for space. Human activities negatively affect animals. Humans and animals are rarely in conflict. Humans consume many natural resources animals need.

OpenStudy (anonymous):

@CGGURUMANJUNATH and @AnswerMyQuestions

OpenStudy (anonymous):

no one will answer that, its probably your exam @dragonknight326

Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!
Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!