1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
sdas [7]
3 years ago
10

You probably believe that Earth is spherical. But as we look around, it certainly appears that earth is flat. One classmate sugg

ests that if you call someone on the other side of the world by phone, they can verify that it is midnight there when it it noon here. Another student reminds you of the picture taken of the spherical Earth from the moon landing. You teacher explains the ancient observation that when the sun was directly over head on one day near the equator, a pole some hundreds of miles away to the north still cast a shadow. What, then, is the best scientific basis for considering that the Earth is spherical?
A. If scientists say it, it must be correct until they determine otherwise.
B. Reasoning must be used to arrive at a model that best fits the observations.
C. If it is in a science book, it is known to be correct until another explanation is agreed upon and published.
D. The observation that Earth is flat is direct and objective, while all of the other observations are indirect, subjective, or based on extrapolated judgment.
Biology
1 answer:
docker41 [41]3 years ago
4 0

Going to have to say B. Hope that helps

You might be interested in
In a species of animal, a gene that determines fur color has only two alleles. The
Goshia [24]

Answer:

The yellow allele could start to become dominant, or the ones without that allele would die out.

3 0
3 years ago
A sporophyte stalk is formed of: a. Haploid cells c. Gametes b. Eggs d. Diploid cells
kirill115 [55]
The answer would be (A) Haploid Cells
3 0
3 years ago
Read 2 more answers
If a DNA molecule contains a total of 600 bases and 20% of the bases are cytosine, how
Dafna1 [17]

Answer:

We know that there are 200 guanine bases so there will be 200 cytosine bases also.

According to Chargaff’s base pair rule,

G+A=T+C=600,

A+200+T+200=600 (since total bases are 600)

A+T+400=600

A+T=200

since there is 50% adenine and 50% thymine , A=100, T=100, G=200, C=200

Verification

A+T+G+C=600

100+100+200+200=600

600=600

Explanation:

5 0
2 years ago
Numbers 1-5, if you know the answer to any of them, even just one, that would help:)
trapecia [35]

1.  Respiratory brings oxygen and nutrients to the cells, while the circulatory

moves gases in and out of the blood. These work together because they have to exchange carbon dioxide and oxygen with each other.

2.   The main parts and functions of the respiratory system are, the nose, pharynx, larynx, trachea, bronchi, and the lungs. As I said in the first answer, The respiratory brings oxygen and nutrients to the cells.

3. The main parts and functions of the circulatory system is the heart, lungs, arteries, veins, coronary, and portal vessels. The circulatory system moves gases in and out of the blood.

4.  There are two main parts in your lungs, the pharynx, and the larynx. So, when you swallow food, the epiglottes blocks the entrance to these two main parts. Simply..if you could breath while doing this..I think you could die.

5. They are connected to capillaries that distribute blood to and from all the cells.

3 0
3 years ago
Which career in marine biology appeals to you the most? Explain the aspects of the job that you find appealing.
gtnhenbr [62]

Answer:

The career in marine biology that appeals to me the most is aquatic science. Aquatic scientists use comparative studies, long term data, models, and theory to address a myriad of questions pertaining to water: water movement, water chemistry, aquatic organisms, aquatic ecosystems, movement of materials in and out of aquatic ecosystems, and the use of water by humans. This sounds very compelling to me.

3 0
3 years ago
Other questions:
  • After lunch, our blood sugar is high. Insulin is released in order to lower our blood sugar to an acceptable level. What is the
    6·1 answer
  • Describe the role that wind plays on surface currents.
    15·1 answer
  • Evidence used to support spontaneous generation was the observation that foods over time become covered in maggots or fungal and
    6·1 answer
  • A boundary between nonsedimentary and sedimentary rocks is an example of which type of unconformity?
    9·1 answer
  • Reproduction between two different species to create a new one.
    6·1 answer
  • The northern red-legged frog, or Rana aurora, is found along the western coast from British Columbia to Northern California. The
    6·1 answer
  • In maize, a dominant allele A is necessary for seed color, as opposed to colorless (a). Another gene has a recessive allele wx t
    8·1 answer
  • A species of rose was studied in Florida and was found to have the following distribution in petal color alleles: 70 for the red
    13·1 answer
  • Please help.What would you expect to occur if you were to repeatedly lift 25 pounds over your head for 1 minute,
    13·1 answer
  • What is the main difference between heterotrophs
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!