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
Marta_Voda [28]
3 years ago
15

Which of the following statements about the Earth's atmosphere is true? It contains 21% oxygen. It contains 78% water vapor. It

contains 21% carbon dioxide. It blocks all radiation from the sun.
Biology
1 answer:
liberstina [14]3 years ago
3 0
The answer is 21% oxygen
You might be interested in
Anole lizards mainly eat small insects. Suppose an anole lizard saw a bright red butterfly and ate it, but was ill afterwards. F
Phoenix [80]

The answer is D. learned behavior.

A change in behavior of an organism takes place due an experience is called learning. Animals learn behavior in many ways. On such way is given the question that anole lizard ate bright red butterfly instead small insects which are its normal food and became ill. Anole lizard learned through experience that bright red insects are not its food. Thus, a learned behavior is one that an organism develops by encountering experience.    

6 0
2 years ago
Read 2 more answers
Which phase of mitosis involves the coiling of chromosomes, breakdown of the nuclear envelope, and the movement of centrioles to
rodikova [14]
It is the prophase which is the first phase of mitosis.
3 0
3 years ago
You inoculate two tubes of liquid culture medium with 100 bacterial cells and incubate one tube at 37°C and the other at 55°C. A
Nady [450]

Answer:

thermophile.

Explanation:

A thermophile is a kind of bacteria that belongs to the Archaea Domain and they are the kind of animals that can live in a region of high or extreme temperature. There has been a research on a kind of thermophile which is known as Methanopyrus kandleri which can exist in an extreme temperature of up to 500° C.

So, if we take a look at the question again we can see that after 48 hours and at 37°C 20,000 bacteria per milliliter are already in the tube and at more higher temperature of 55°C we have 1,568,000 bacteria per milliliter which means that at higher temperature more of the bacterial is produced.

5 0
3 years ago
Jayden was goofing around with a friend when he fell and hit his head. soon after, he was having difficulty with his vision. it
amm1812
An injury to the frontal lobe
5 0
3 years ago
The primary function of DNA is to
Daniel [21]
Is it not to store and transmit genetic info ?
7 0
2 years ago
Other questions:
  • You are handed a model of a protein. It has a three-dimensional shape, and by twisting it, you can see that there is only one po
    8·1 answer
  • Cells lining the human respiratory tract have projections that help keep the passageway clean, moving debris and mucus up and ou
    7·2 answers
  • Which coefficient is needed in front of NaNO3 to balance the equation Na2S + Zn(NO3)2 → ZnS + _NaNO3?
    11·2 answers
  • Due in 1 minute please help
    6·1 answer
  • What is annual, biennial and perennial?​
    13·1 answer
  • What blood vessel delivers oxygenated blood to the heart structure that separates the left and right ventricles?
    5·1 answer
  • Match each gymnosperm to its correct description. plzzz help me reeee​
    9·1 answer
  • Please help me with the following discussion questions for my biology experiment to determine the population of animals using a
    11·1 answer
  • Which is true of genes? Question 4 options: They are proteins that produce sections of DNA which control the cell's activities.
    15·1 answer
  • In the phase of wound healing, collagen closes the gap between tissues and scar tissue forms
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!