The Galapagos Islands were formed from underwater volcanic activity. The islands initially were barren, supporting no life, and then they went through a series of colonization stages. The equilibrium model of island biogeography states that the species composition on an island will constitute a balance between the immigration and extinction rates. Based on the equilibrium model of island biogeography, indicate if the following statements concerning succession on the islands are predicted to be true or false.

a. Species arriving later might outcompete earlier arriving species, driving them to extinction.
b. The number of species on an island decreases as a function of the distance from the source-pool (in this case, mainland South America).
c. The number of immigrants will increase the closer the island is to the source.
d. The rate of extinction will be lower on smaller islands due to small population sizes and less competition.

Answers

Answer 1

Answer:

a. Species arriving later might outcompete earlier arriving species, driving them to extinction. (True)

b. The number of species on an island decreases as a function of the distance from the source-pool (in this case, mainland South America). (True)

c. The number of immigrants will increase the closer the island is to the source. (True)

d. The rate of extinction will be lower on smaller islands due to small population sizes and less competition. (False)

Explanation:

The equilibrium model of island biogeography, from the question, states that the species composition on an island will constitute a balance between the immigration and extinction rates.

The succession on the island would be how the species composition on an island develops gradually with time.

So, species arriving later might outcompete earlier arriving species. As the Islands continue to develop, major players like the primary producers and other factors that aid ecological development would support the growth of species that would previously have struggled to live on the island.

The number of species on an island can also be determined by the distance from the source-pool (in this case, mainland South America).

The more the island gets food from a near source, the more the influx of those organisms to the island.

So many factors contribute to extinction, some include, natural disasters, evolutionary changes, loss of habitat. Small population sizes and less competition do not mean a lower rate of extinction.


Related Questions

Compared to the crust of the North American Plate, the crust of the Juan de Fuca
Plate is

A: thicker and less dense
B: thicker and more dense
C: thinner and less dense
D: thinner and more dense

Answers

Answer: thinner and more dense

Explanation:

Earth crust is defined as the outer layer of the and is the top part of the lithosphere.

The correct answer is:

Option D: thinner and more dense.

The crust of North American and Juan de Fuca can be compared as:

1. Juan de Fuca is a small tectonic plate that is formed by the oceanic crusts. The crust of Juan de Fuca is denser as it flows towards the eastwards.

2. The North American Plate is a tectonic plate that includes oceanic and continental plates.  The crust of the North American plate is thinner and is a rigid slab formed billions of years ago.

Thus, the correct answer is Option D.

To know more about Earth's crust, refer to the following link:

https://brainly.com/question/25938468

oii tudo bem com vocês ❤️☺️​

Answers

Answer:

hello! which language are you typing???

What language is this???

Cross a heterozygous type A blood person with a hybrid type B person. Give the phenotypic ratio.

Answers

Answer: 25% A 25% B 25% O

Explanation:

Scientists classify organisms because

Answers

Answer:

Scientists classify living things in order to organize and make sense of the incredible diversity of life.

Explanation:

Modern scientists base their classifications mainly on molecular similarities. They group together organisms that have similar proteins and DNA. Molecular similarities show that organisms are related.

Answer:

The above pic might help you :)

what is microsublimation?​

Answers

Answer: microsublimation is a sublimation of a minute quantity of a material for microscopic examination

Explanation:

****Isra****

Why might the shape of a sickled red blood cell prevent the cell from doing its job? Hint: Think about the function(job) of the red blood cell Use the following Sentence starter: The shape of the sickled red blood cell would prevent the cell from doing its job because_________. *

Answers

Answer:

Normally, the flexible, round red blood cells move easily through blood vessels. In sickle cell anemia, the red blood are shaped like sickles or crescent moons. These rigid, sticky cells can get stuck in small blood vessels, which can slow or block blood flow and oxygen to parts of the body.

Hope this helps :)

Answer:

These rigid, sticky cells can get stuck in small blood vessels, which can slow or block blood flow and oxygen to parts of the body.

Explanation:

Pls only serious answer
Due soon.
I’ll give you Brainily.

The following graph shows the barometric pressure over the course of the day in Bellingham. What effect will this trend
likely have on cloud cover and precipitation over the city?

Answers

Answer:

It will be stormy/cloudy during the later part of the day/night and clearer in the first part of the graphs hours.

Explanation:

Generally weathers worse when the barometic pressure is down and better when its up. The times when its lower on the graph will be more cloudy or rainy.

Answer:

In the graph, barometric pressure is decreasing. The drop in pressure represents a low-pressure system. This type of system will cause an increase in cloud cover and precipitation.

Explanation:

word for word from edmentum

Human impact on environment daily which of the following correctly identifies the type of impact that humans have on the environment

Answers

Answer:

humans have a negative impact on the environment

Explanation:

This is because everyday humans overuse earth's resources and realsense lots of harmful gasses in the atmosphere

BRAINLIEST FOR BEST ANSWER

1.In 1973, biologist Theodosius Dobzhansky wrote an essay titled “Nothing in Biology Makes Sense Except in the Light of Evolution.” Why is evolution so important for understanding biology? Explain your answer in 1–2 sentences.(2 points)

Answers

Answer:

The transformation of animals, plants and other living things into different forms (now understood as a change in genetic composition) by the accumulation of changes over successive

What are the organelles that transport, store and recycle resources within the cell?

Answers

Lysosomes are organelles that digest and dispose of unwanted protein, DNA, RNA, carbohydrates, and lipids in the cell.

If helped mark me the brainiest. Need more clear explanation comment.

Which statement applies to all forms of sexual reproduction?
Choose 1 answer:
A All offspring from a mating look identical to the parents.
B
All offspring are clones.
C
Offspring receive genetic material from two gametes.
D
Offspring completely develop inside the mother's body before birth.

Answers

the answer would be C: offsprings recieve genetic material from two gametes

If a motion is not seconded, what happens to the motion?

Answers

Answer:

After a motion is proposed, if the motion requires a second and none is immediately offered, the chair of the body will usually ask, "Is there a second?" If no second is obtained within a few moments of proposing the motion, then the motion is not considered by the assembly, and is treated as though it was never offered. Such a motion may be introduced again at any later time.

Explanation:

This answer has been deleted

10
il. List down 5 simple ways you can do to conserve Earth's resources,
Need answer now please
No links​

Answers

Answer:

Compost, Recycle, Plant a tree, Solar power, Wind power, Hydroelectric power, and Save water

what makes us also different

Answers

People differ in so many ways; in their genetic make-up, sociocultural backgrounds, attitudes, the way they speak, listen, learn, behave, act and react. However, everyone is blessed, unique and important.

True or False? Changes to land happen at mostly the same speed.

Answers

Answer:

False

Explanation:

The world changes at different times, much like how people mature at different times. If the world was changing all the same speed, we would've had a mass continent again.

2. Plants follow a reproduction pattern called alternate generations. Explain the two processes in alternate generations.

Answers

Answer:

Alternation of generations is a type of life cycle by which species alternate haploid (n) and diploid (2n) individuals.

Explanation:

Alternation of generations refers to the life cycle observed in terrestrial plants by which species alternate between haploid (i.e., organisms having a single set of chromosomes) and diploid (2n, i.e., organisms having a single set of chromosomes) generations. Plants alternate between a sporophytic stage and a haploid gametophytic stage. This alternation of generations is accompanied by the alternation between sexual reproduction, where the fusion of male and female gametes from the gametophyte generation produces a diploid zygote that develops into the sporophyte, and asexual reproduction, where spores (generated in the sporangium of the diploid sporophyte) are released and germinate into new individuals.

please answer the question properly friends....​

Answers

Answer:

I can answer the sience one but not the social one.

Explanation:

poop,food,paper,tree/wood, and Eminem's

PLEASE HELP!!!
How many cells do you end up with in Meiosis?


A) 2


B) 1


C) 3


D) 4

Answers

Answer:

During meiosis , four daugther cells are produced

Answer:

4 cells. You end up with four cells.

Explanation:

Each daughter cell undergoes meiosis-II, producing two cells. In meiosis-II the separation of two chromatids occur so that equal number of chromatids (in fact chromosome due to duplication of genetic material) goes to each of the daughter cell.

Thus, at the end of meiosis-II, four daughter cells are formed. Each cell has half the number of chromosomes present in the diploid cell.

Our cells have many working parts that help the cell to survive and carry out its function. Which organelle releases energy in the cell necessary for all metabolic activities?

Answers

Answer:

Mitochondria

Explanation:

The mitochondria produce ATP, also known as energy. It is coined the power house cell.

mitochondria is the answer

Vertebrate embryos all follow a very similar developmental process. Which statement could explain this similarity? (1 point)
O All vertebrates develop a backbone that protects the spinal cord.
O All vertebrates require the same nutrients during embryological development
O All vertebrates inherit the same sequence of DNA from their parents.
O All vertebrates live in similar environments which require the same adaptations

Answers

A) All vertebrates develop a backbone that protects the spinal cord.

Vertebrate embryos all follow a very similar development process because all vertebrates inherit the same sequence of DNA from their parents.

Why vertebrate embryos follow similar development process?

Early developmental sequences of all vertebrates are similar due to common ancestry.

All vertebrate embryos, have gill slits and tails and by the adulthood, they lose the tail.

From the study of ontogeny, one can discover about transformation of species through evolutionary change.

Here, ontogeny is the process of individual development from a single cell to adulthood of the organism.

To know more about vertebrate embryo development :
https://brainly.com/question/8449465
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What type of sedimentary rocks form when crystals grow out of solution?
O A. Igneous
B. Chemical
C. Biogenic
D. Clastic



Answer is: Chemical

Answers

Chemical sedimentary rocks form because of the precipitation of crystals from aqueous (water) solutions and from chemical residues. When crystals grow out of a solution (for instance, halite, or table salt, out of water) they can only use the space they have available, often interfering with each other's growth pattern. B

Answer:

Correct! B. Chemical

Hope this helps :)

Jackson, a 4-year-old boy, is unable to get the measles (MMR) vaccine due to a severe allergy to the antibiotic neomycin. Jackson will be starting kindergarten next year and his parents are trying to decide whether to send him to Oak Crest Elementary School, which has an 80% vaccination rate for MMR, or Lincoln Elementary School, which has a 95% vaccination rate for MMR.

Required:
a. What would you advise them and why?
b. Is Jackson at risk of contracting measles? Explain your reasoning.

Answers

Answer:

In Lincoln Elementary School.

Explanation:

I advise them to send Jackson to Lincoln Elementary School which has 95% vaccination rate for MMR because there is less chances of having measles to Jackson as compared to Oak Crest Elementary School having 80% vaccination rate for MMR. Yes, Jackson is at risk of contracting measles because of no immunity acquire against measles disease by its body. The vaccine can provides immunity to Jackson from the disease but he can't take it due to allergy.

About how much saliva is produced by the salivary glands every day?

Answers

A quart, I really hope this has helped

How can we reduce the Disadvantages of Human-made Materials?​

Answers

A way we can reduce disadvantages of human made materials is simply by finding new uses for them such as when plastic is molded and used for a container of a liquid.

Natural selection leads organisms to become adapted to their environment over time. Using the concept of natural selection, explain how the giraffe most likely came to have such a long neck.

Answers

Answer:

when the giraffes had short necks they were unable to reach the leaves on trees. This resulted in centuries-long growth of their neck. Their neck slowly over time started helping them as they started growing longer.

Explanation:

Hope it helps

What's the role of GALT to the digestive system

Answers

Answer: to protect the body from invasion in the gut

Explanation: Gut-associated lymphoid tissue (GALT) is a component of the mucosa-associated lymphoid tissue (MALT) which works in the immune system to protect the body from invasion in the gut.

A type of asexual reproduction through which all the genetic information is copied and a new organism is produced is called

Answers

Answer:

Budding

Explanation:

I'm so sorry. I originally was thinking cells but then realized it was talking about a different situation. This is the answer.

the other person already answered it haha

helpppppppppppppppppppppp

Answers

Answer:

o Glucose, which required light, water and carbon dioxide to form this substance

glucose!
when plants go through photosynthesis, they create a sugar to sustain (feed) themselves, called glucose.

which organisms would be the prey for the hawk?

Answers

Shrew, snake, and Insect-eating Bird

Hope this helped! :T

Please select the word from the list that best fits the definition

An echinoderm that is covered with movable spines and that eats seaweed



sea urchin

sea star

brittle star

sea cucumber

echinoderm

Answers

Answer:

sea urchin

Explanation:

An echinoderm is an invertebrate animal (without backbones) that belongs to the Echinodermata group. Members of the echinoderm group are characterized by their possession of a star-shaped and spiny-skinned morphology. They are found strictly in marine habitats. They include sea urchins, sea cucumbers etc.

According to this question involving an echinoderm that is covered with movable spines and that eats seaweed, this describes a SEA URCHIN. This is due to the possession of the MOVABLE SPINES by sea urchins. Sea urchins, like other echinoderms, are predatory and feed on seaweed (algae) as well.

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