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lbvjy [14]
3 years ago
5

How might a person use a floating stick to measure the speed at which a river flows?

Biology
1 answer:
-BARSIC- [3]3 years ago
7 0
A person might use a floating g stick to see how fast a ricer flows because when you put th e stick in the water,the stick moves with the water and goes as fast as it does, so when you look at how fast the stick is, you know how fast the water is.
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Species accumulation curves are used to estimate regional, or gamma, diversity.
MakcuM [25]
I believe the correct answer is true. A species accumulation curve can be used as a tool to approximate local, or alpha, diversity. The shape of this curve depends largely on the order of the samples processed. Hope this answers the question.
3 0
3 years ago
1. How would the predation of pythons on rabbits affect the population of other large predators such as bobcats and alligators?
Inessa [10]

Q1:

Answer:

Studies have reported that due to predation of pythons on rabbits, the population of other predators is badly affected.

Bobcats are a natural predator of rabbits thus they come in a competition with pythons for food. As pythons are more powerful so they target rabbits more easily than Bobcats. The population of Bobcats has been declined by 90% or more due to the establishment of pythons in the Everglades.

<em>Alligator mississippiensis </em>or American alligators are also abundant in Everglades and just like Bobcats they compete with pythons for their food. They can even kill pythons if pythons are smaller in size than them, but python will kill alligator if he is of smaller size. Although rabbits are food for both alligator and Python but Alligator is a key stone specie and it has very important ecological role, because it digs holes in land that retain water upon rainfall. These water hole provide water in the extreme dry weather and help in survival of other small specie like insects and birds.

So, we can expect the population of Alligator, Bob cats and other small insects and birds to decline rapidly if Python population kept on increasing with same speed.

-------------------------------------------------------------------------------------------------------------

Q2:

Answer:

There is no doubt that Pythons pose serious threat for both humans as well as survival of other organisms like Alligators and birds. However, I donot think that “Python challenge” is a reasonable way to kill or remove Pythons. Because It can threat the lives of many individuals who take part in competition, although they are trained but still they are nor professionals and get training of only few weeks so it is not safe competition.

There should be some strategy of introducing natural predators like Brown beers, Cougars and Alligators which can kill python naturally without staking the life of humans at risk.


Hope it helps!

6 0
3 years ago
PLEASE HELP FAST I WILL GIVE YOU A LOT OF POINTS Advancements in _________ help us change the way we think about existing scient
Alex73 [517]
I think it’s technology
8 0
3 years ago
Based on fossil data, the researcher estimates that humans and their most closely related species in the data set diverged appro
tester [92]

Answer:

Hello your question is incomplete attached below is the complete question

answer : = 1.25

Explanation:

i) Determine the rate of mtDNA percent divergence

From the data given the most closely related specie is Chimpanzee ( 8.8 sequence  difference )

Note : Given that this divergence took place seven million years from now

∴The rate of mtDNA percent  divergence per 1 millions years

= 8.8 / 7 = 1.25

5 0
3 years ago
1. Show your work using a Punnett square. Cross a homozygous dominant (black) rabbit with a homozygous recessive (white) rabbit.
xxTIMURxx [149]

Answer:

1. 0% will be homozygous dominant, 100% will be hetrozygous, 0 % will be homozygous recessive

2. 25% will be homozygous dominant, 50% will be hetrozygous, 25 % will be homozygous recessive

Explanation:

1. see the attachment for Punnet square

BB: homozygous(black) rabbit

bb: homzygous ( white) rabbit

2. see the attachment for Punnet square

Bb: hetrozygous(brown) rabbit

7 0
3 years ago
Read 2 more answers
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