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3 years ago

How do scientists use ice to study ancient climates

2 answers:

Nookie1986 [14]3 years ago

8 0

Answer: Ice is very important for studying ancient climates. Ice can preserve the remains of organisms such as a Wholly Mammoth, possibly for hundreds of thousands of years. The details and phenotype of the mammoth such as its fur, can provide evidence of Earth's ancient climate, and where it occurred (which is somewhere that contains ice).

salantis [7]3 years ago

5 0

Counting the yearly layers can date them. The oxygen in the water molecules also holds a key to past climate. Scientists are able to use the oxygen atoms in the glacial ice as a proxy for air temperature above the glacier.

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For the same cross: BbTt x bbTt a. Using the Probability Method illustrated in lecture, break the complex two-gene cross into tw

shutvik [7]

Answer and Explanation:

cross: BbTt x bbTt

Cross for B gene

Parental ) Bb x bb

Gametes) B b b b

Punnet square) B b

b Bb bb

F1) Genotypic proportion: 2/4=1/2 Bb : 2/4=1/2 bb

Genotypic ratio 1:1

Phenotypic proportion: 2/4=1/2 B- : 2/4=1/2 bb

Phenotypic ratio 1:1

Cross for T gene

Parental ) Tt x Tt

Gametes) T t T t

Punnet square) T t

T TT Tt

t Tt tt

F1) Genotypic proportion 1/4 TT

2/4 Tt

1/4 tt

Genotypic ratio 1 : 2 : 1

Phenotypic proportion: 3/4 T-

1/4 tt

Phenotypic ratio 3 : 1

3 0

3 years ago

I observe that squirrels that live in the southeastern United States are much thinner than squirrels that live in the northeaste

stiv31 [10]

Answer:

No, it is not a scientific theory.

Explanation:

A scientific theory is a proposition that is made to explain the various phenomena that are occurring in nature and it is supported by experiments that have repeatability and well-analyzed results.

Scientific theories are usually tested in experiments under controlled conditions and verified as well.

In the given situation, the theory made by the observer is not being tested through any experimentation or quantification and therefore, it is just a hypothesis and not a scientific theory.

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2 years ago

7. Which statement correctly describes how the Sun's energy drives a process within the

abruzzese [7]

Answer:

Explanation:

6 0

3 years ago

Show the following as a food chain: omnivore, autotroph, herbivore

Thepotemich [5.8K]

omnivore⇒herbivore⇒autotroph

this is because an autotroph makes its own food (photosynthesis) so it doesn't have the need to eat other organisms. Herbivores eat only plans (remember this with the word herb is a type of plant) and an omnivore will eat either meat or plants so it can eat either of the things below it.

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3 years ago

1500- NA 4) What directions is Star Creek flowing? How do you know?

Svet_ta [14]

Answer:

Star Creek is flowing from East to West, that is because the creek is small and has just begun to form as an extension of the Cayuta Creek.

Explanation:

4 0

2 years ago