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
Aleks [24]
3 years ago
14

Which of the following elements makes up the smallest percentage of the atmosphere?

Biology
2 answers:
Tanzania [10]3 years ago
5 0

Answer:

c: Carbon Dioxide

Explanation:

Earth's atmosphere is mainly made up of:

78% nitrogen

21% oxygen

0.03% carbon dioxide

And smaller percentages of other elements. Therefore, out of the options, the answer is carbon dioxide

Brrunno [24]3 years ago
3 0

Answer: A

Explanation:

Oxygen makes up another 20 to 21 percent of our atmosphere. It's essential for life on Earth, and interestingly enough, it is poisonous when highly concentrated. Our concentration of 20 to 21 percent seems just right.

You might be interested in
Hibernating animals usually have low rates of metabolism. Periodically, they have episodes of arousal, where they rapidly increa
Alinara [238K]

Answer:

The protein is known as Uncoupling protein 1 (UCP1) that is present in inner mitochondrial membrane of brown adipose cells of mammals and other organisms undergoing hibernation.

Function:

  • The protein allows the organisms to produce metabolic heat that helps in the organism’s regulation of body temperature.
  • This protein can also serve as a source of carbon for the production of carbohydrates when organism faces the period of prolonged fasting and thus help the organism to survive.
  • The protein also helps in the movement of protons into the mitochondrial matrix that ultimately activate the electron transport chain and releases more and more heat for body’s maintenance.

Hope it helps!


7 0
3 years ago
Question 3 (1 point)
Anarel [89]

Steve would need to gather other scientists who have come to the same conclusion and introduce those claims to government officials.

<h3>Policy for Science</h3>

Policy for science can be arrived at when scientists pitch the outcomes of their findings to the government. especially if the findings affect the country or its people at large.

As a conservation biologist, Steve will need to work hand in hand with other scientists in the same field. Together, they can then present their findings to the government and advise the government accordingly.

More on policy for science can be found here: brainly.com/question/12720690

#SPJ1

4 0
2 years ago
Which is easier to identify: prophase, metaphase, anaphase, or telophase?
Romashka [77]

Answer:

metaphase

Explanation:

The easiest stage of mitosis to identify under the microscope is the metaphase stage.

<em>The stage is characterized by the alignment of chromosomes at the center (the equator) of the cell forming what is known as the 'metaphase plate'. The metaphase plate can easily be seen at a glance under a focused microscope. Other stages of mitosis are continuous and will take a bit of effort to pinpoint a particular stage from the transition stage. </em>

7 0
2 years ago
Classify the following under the headings 'cell structure', 'tissue', 'organ' or 'system'.
olga_2 [115]
It is system because bone nucleus and all the rest you put down are all a system structure in the body 
3 0
3 years ago
A biologist analyzes the DNA sequences of one gene in three different primates . The biologist finds that primates A and B have
Nataly_w [17]

The question is incomplete as it does not have the option which are:

  • primates A and B are more closely related to each other than either is to primate C.
  • all three primates appeared on Earth at about the same time.
  • either primate A or primate B must be a direct ancestor of primate C.
  • primate C must have been the ancestor of both primate A and primate B.

Answer:

Primates A and B are more closely related to each other than either is to primate C.

Explanation:

In the given question, on the basis of the given information, it can be predicted that the Primate A and B are more closely related to C as the DNA sequences of these two primates are almost similar. The similarity of the sequence suggests that these primates have descended or diverged from a common ancestor.

The DNA sequence of C is different from both A and B which shows that both A and B are different from the C.

Thus, the selected option is the correct answer.

5 0
3 years ago
Read 2 more answers
Other questions:
  • Choose 3 of your favorite animals from the Lion King and research their binomial nomenclature (scientific name) and one symbioti
    8·1 answer
  • Which macronutrient is considered a secondary energy source and helps repair damaged or injured tissue?
    13·1 answer
  • A student compares two different proteins. The student notices that the primary structures differ in both the number
    6·1 answer
  • Select all of the answers that apply. Which of the following features are types of folds? anticlines and synclines monoclines ho
    13·1 answer
  • 1. Describe the coronavirus structure and clinical features that presents in most cases.
    11·1 answer
  • Which statements accurately describe the effects of latitude and elevation on climate? Check all that apply.
    8·2 answers
  • Adding and removing energy can change the physical properties of a substance.
    8·1 answer
  • 1. What are viruses made up of?
    13·2 answers
  • CONSIDERAS QUE ES CORRECTO DECIR QUE LOS ANTIBIOTICOS SON MALOS PARA LAS BACTERIAS? Argumenta tu respuesta
    12·1 answer
  • Each student had three pots. All of the pots contained the same type and amount of soil. They
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!