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
ryzh [129]
3 years ago
8

HELP MEEEEEEEEE

Biology
2 answers:
Furkat [3]3 years ago
6 0
I think it's 3 because you need oxygen in your body to survive
nika2105 [10]3 years ago
6 0
Oxygen because u can’t live without breathing oxygen
You might be interested in
How does heart rate change during and after an exercise is performed for two different periods of time?
andrew-mc [135]

Answer:

During exercise, your heart typically beats faster so that more blood gets out to your body. Your heart can also increase its stroke volume by pumping more forcefully or increasing the amount of blood that fills the left ventricle before it pumps.

Explanation:

8 0
3 years ago
When constructing a karyotype, the chromosome images are arranged in pairs according to ____________________ and _______________
konstantin123 [22]

Answer:

an Individuals chromosomes, and homologous pairs?

8 0
3 years ago
Can anyone answer this its urgent...<br>srrry if the cropping is bad<br>​
marusya05 [52]

Answer:

The answer for this question is the ureotelic

7 0
3 years ago
Read 2 more answers
Which is most likely an example of a vestigial structure?
Agata [3.3K]

Answer:

Just letting you know that the meaning of a vestigial structure

Explanation:

It is a structure that has no purpose. For ex. a pig's back toe has no purpose it's just there. It doesn't function

6 0
3 years ago
Read 2 more answers
Please answer ASAP!
alukav5142 [94]

Part A:

<span>If early conditions of primeval earth had ammonia, methane, hydrogen in its atmosphere, then it is possible that amino acids such as glycine, α-alanine, and β-alanine may have been spontaneously formed from chemical reactions spurred by energy from lightning.</span>

<span>Their hypothesis was that the early conditions of primeval earth favored the spontaneous formation of organic molecules, from inorganic precursors, that may have been the origin of life. This theory is called abiogenesis. </span>

 

Part B:

<span>Miller Urey put methane, ammonia, hydrogen gases in a glass flask and a pool of water at the bottom of the glass flask. The flask was heated moderately to simulate the hot conditions then. Sparks were also occasionally induced in the flask to mimic lighting. The flask was then cooled slowly to simulate cooling of earth over time.After one day, they found the presence of some amino acids (glycine, α-alanine and β-alanine) was discovered in the water in the flask</span>




5 0
3 years ago
Other questions:
  • Which of the following is true about tubular reabsorption?
    8·1 answer
  • What problems can an algal bloom cause in an ocean?
    8·1 answer
  • True false glucose is the most abundant sugar in our bodies.
    8·1 answer
  • A functional group that is acidic and part of the amino acid backbone: ____________
    15·1 answer
  • The final electron acceptor in aerobic respiration is A) ATP. B) NADPH. C) oxygen. D) water.
    7·2 answers
  • Which of the following is the best explanation for why it is important to follow lab safety guidelines? a. Following laboratory
    8·2 answers
  • HELPPPPPP
    13·1 answer
  • Which of the following are the two characteristics of communities that are related to stability? (Choose all that apply)
    5·1 answer
  • By substitution, justify that x= − 6 is a solution to x − 2 = − x − 14
    9·1 answer
  • What do u mean by photosynthesis​
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!