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
RUDIKE [14]
3 years ago
13

What gas is up close to one fourth of air surrounding earth

Biology
2 answers:
Ket [755]3 years ago
6 0
The answer is oxygen
NISA [10]3 years ago
3 0
The answer would be oxygen 
I hope this helped 

You might be interested in
Large ears Survival Advantage
Anna71 [15]

Answer:

what?

Explanation:

8 0
3 years ago
Read 2 more answers
A scientist helps a colleague do a better experiment by:
Virty [35]

Answer:

B. Offering advice about how best to perform a standard procedure.

Explanation:

Helping others can be in different ways, be it helping out or by giving encouraging words or advice. But in all aspects of help, there is always a positive outcome if help is given in the right way and at the right time. And it is also how one person lifts another.

A scientist can help a colleague out by offering advice and telling the person how to best perform a standard procedure. This will help the colleague do better in the experiment and also help ensure that the right things are done and the efforts are successful. The other options are all negative in their 'approach' which will only hinder the colleague in his/her works.

Thus, the correct answer is option B.

7 0
3 years ago
The sex of the child is determined by the male parent. Justify your statement.
nevsk [136]
Male has sex chromosomes: One X + one Y
Female has sex chromosomes: Two X

So, Female must contribute by one X chromosome, but male can contribute either by X or Y, if he sends, X chromosome, then Female (Girl) will form, but if he sends Y chromosome, then Male (Boy) will form

Hope this helps!
3 0
3 years ago
This phylogenic tree shows the changes in bacterial species from the ancestral species to the most current split in the modern c
pshichka [43]

Answer:

a

Explanation:

usa test prep

7 0
3 years ago
Read 2 more answers
Investigating the effect of temperature on enzyme activity question answers
Alex777 [14]
Well if the temperature goes above 42°c the enzymes become denatured so the body cannot function and you will die. Their optimum temperature is 37°c which is your normal body's temperature. If the body temperature. is too low the enzymes will not work effectively.
8 0
3 years ago
Other questions:
  • Which describes an example of ecological succession?
    5·2 answers
  • A rock that forms at or near earth's surface from the cooling of lava is a(n) _____ rock.
    13·2 answers
  • Is Human height an example of a trait that represents sex linkage because many separate genes contribute to this single trait.
    10·1 answer
  • Alteration of histones by addition of methyl and acetyl groups to particular amino acidsA) alters the denaturation and renaturat
    10·1 answer
  • Whether during mitosis or meiosis, sister chromatids are held together by proteins referred to as cohesions. Such molecules must
    13·1 answer
  • One scientific investigation may result in
    8·1 answer
  • If 60 seconds are in a minute, 60 minutes in an hour, and 24 hours in a day, then 86,400 seconds are in a day. What type of reas
    11·2 answers
  • Latency refers to ;the process of viral replication inside a host. the process of making a viral envelope from portions of the h
    11·1 answer
  • Genes and chromosomes are microscopic and difficult to observe. How does the simulation and model help in understanding how trai
    11·1 answer
  • PLEASE HELP :(
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!