Question

I have 16 question need help really quick!!! will fan and medal!!

Answer 1

1. What is the term for a group of organisms that are able to interbreed and produce fertile offspring?
A.ecosystem
B.biological species <--- my answer
C.genus
D.population

2. Which is an example of a population?
A.group of individuals that make up a species <------ my answer
B.each dolphin in a pod of dolphins
C.one of the cactuses in a desert
D.all the brown bears that live in the woods

3.Scientists discovered that the Albert's squirrels became two separate populations during the Grand Canyon's formation; they are now known as the Albert's and Kaibab squirrels.
Their traits differ, and scientists agree that in the future they may no longer be able to breed with each other.
If this occurs and breeding can not happen, what will this be an example of?
A.speciation <------- my answer
B.spontaneous generation
C.succession
D.natural selection

4.Which process can lead to speciation?
A.Two populations become reproductively isolate; no inter-mating occurs. <------- my answer
B.Over time populations may differ only in coat color or limb length.
C.Over time two populations will occasionally interbreed.
D.Over time two populations may differ in their diet and behavioral adaptations but can still mate and produce offspring.

5.What is Charles Darwin's major contribution to science.
A.He showed DNA is passed from parents to offspring.
B.He categorized thousands of species to compare their different traits.
C.He explained how species evolve. <----- my answer
D.He performed an experiment showing how molecular compounds first formed.

6.Which supports the hypothesis that life has changed over time?
A.Eukaryotic cells have a nucleus and membrane-bound organelles.
B.The finches adapted to their habitat over many generations. <----- my answer
C.Around the world organisms are different from each other.
D.There are atmospheric changes that have occurred over time.

7.What was the difference between Darwin and Lamarck?
A.The idea of mutations was understood by both, but Darwin was able to prove it. <------ my
answer
B.The idea of mutations was understood by both, but Lamarck was able to prove it.
C.Darwin was able to explain evolution with evidence, something Lamarck did not do.
D.Lamarck was able to explain evolution with evidence, something Darwin did not do.

8.Which describes the scientific view's order of earth's first living things to the most recent? A.cyanobacteria. hagfish, giant ground sloths, crocodilians
B.crocodilians, giant ground sloths, hagfish, cyanobacteria
C.cyanobacteria, crocodilians, hagfish, giant ground sloths
D.cyanobacteria, hagfish, crocodilians, giant ground sloths <------- my answer

9.What did other investigators find based off Stanley Miller's 1953 primordial soup experiment?
A.That water turned into various types of gases found in the earth's early atmosphere.
B.That nitrogen gases, hydrogen gas, methane, and ammonia were formed in the waters of the past. <------ my answer
C.That amino acids, fats, and nucleic acids might have formed in the waters of the past.
D.That water turned into amino acids and fat, but nucleic acids were caused by lightning.

10.Which gas in the atmosphere made the development of eukaryotic cells possible? A.methane
B.carbon dioxide
C.nitrogen <------ my answer
D.oxygen

11.What was the first cell type produced in the absence of oxygen?
A.prokaryotic <----- my answer
B.eukaryotic
C.fungus
D.algae

12.What name is given to the images embedded in these rocks?
A.resin
B.drawings
C.fossils <----- my answer
D.animal pelts

13.Certain types of atoms break down at a known rate. Scientists can measure the amounts of the broken down products present in a sample to calculate its age.
What is this technique called?
A.speciation
B.radiometric dating <------- my answer
C.the fossil record
D.natural selection

14.Fossils allow scientists to determine when and for how long a certain species lived.
What can scientists deduce from this discovery?
A.which fossils are heavier
B.explain how earth remained unchanged
C.the food sources that were available
D.earth's life has changed over time <------ my answer

15.According to scientific evidence, earth’s earliest atmosphere lacked oxygen. Over time, oxygen was added to the atmosphere.
Which statements explain how this change occurred and how it affected life on earth?
Choose all answers that are correct.
A.The addition of oxygen to the earth's atmosphere helped make possible the development of eukaryotic organisms, which need oxygen to carry out many of their life processes. <------| Answer1
B.When cyanobacteria evolved, they carried out photosynthesis. Oxygen is a product of photosynthesis. The addition of oxygen to earth’s atmosphere helped make possible the development of eukaryotic organisms, which need oxygen to carry out many of their life processes. <-------- answer 2
C.The addition of oxygen to the earth's atmosphere helped make possible the development of prokaryotic organisms, which need oxygen to carry out many of their life processes.
D.When cyanobacteria evolved, they carried out photosynthesis. Oxygen is needed to carry out photosynthesis.

16.Imagine an island inhabited by a large population of a certain kind of creature—let’s call them furberts. Let’s call our group of furberts “Population A.” Now, imagine that a powerful hurricane picks up about half of the furberts (remember, you’re imagining this) and blows them to another island. Let’s call this group “Population AB.” As everyone knows, furberts can’t swim, so there’s no way for the furberts in Population AB to get back to their old island.
Because all the furberts in Population AB are isolated from the furberts in Population A, they cannot interbreed. It turns out that the furberts in Population AB ended up on an island very different from their old island. As time passes, one generation following another, the offspring of the AB furberts become adapted to their new conditions. The AB furberts soon all have long snouts and short curled claws—very different from the pug noses and short, stubby claws of the A furberts back on the old island.
Which process led to the changes in the furberts of Population AB?
A.natural selection
B.stabilization
C.mating ritual changes <------ my answer
D.DNA reversal

Answer 2

@Gir_lover_♥

Answer 3

II think 2 is right but idk the rest sry..I haven't taken this class in forever don't remember this stuff

Answer 4

ok thanks any way1

Answer 5

@Xmoses1

Answer 6

@ganeshie8

Answer 7

@.Sam.

Answer 8

@geniousmind13

Answer 9

@shifuyanli

Answer 10

Did you really expect us to all all that for you?