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
Gemiola [76]
3 years ago
13

Please help!!!

Biology
2 answers:
ivann1987 [24]3 years ago
7 0
Respiratory and circulatory............................
Mrrafil [7]3 years ago
3 0
<span>B. respiratory and circulatory

When oxygen is inhaled it is then brought to the lungs. It soon goes through a series of steps which guide's the oxygen (which are now molecules) to the blood. The blood then takes the oxygen molecules through out the body, so now those molecules are spread through out the body.

Hoped I helped!

</span>
You might be interested in
Standard sea level pressure is about _____ lb/in 2 (pounds per square inch).
Deffense [45]
I had this question on one of my lessons the answer is 15.
7 0
4 years ago
Read 2 more answers
Q3.13. approximately how long did it take for the recessive allele to decline to half its initial frequency?
yaroslaw [1]

The rate for a recessive allele to decline to half its initial frequency will depend on the presence of selective evolutionary forces and random mating.

<h3>What is recessive allele frequency?</h3>

The recessive allele frequency refers to the initial frequency of a recessive allele in a population, which is masked in heterozygous individuals.

The recessive allele frequency depends on the adaptive fitness of this gene variant, the presence of selective forces and random mating, that facet its rate of change.

In conclusion, the rate for a recessive allele to decline to half its initial frequency will depend on the presence of selective evolutionary forces and random mating.

Learn more about recessive allele frequency here:

brainly.com/question/8518551

#SPJ1

6 0
2 years ago
This group of mushrooms, fungi, are growing up through the leaf litter on the forest floor. In any food chain, these fungi would
jekas [21]
These mushrooms and other fungi will be classified as decomposers and they will obtain their nutrition by breaking down the body of organisms that have died. These organisms play a vital role in the cycling of nutrients in a food chain, since they convert the macromolecules present in dead organisms into smaller ones and release them back into the environment.
5 0
3 years ago
What organ so the fluids made by the pancreas protect?
Margarita [4]
It's the small intestine that the pancreas protect
5 0
3 years ago
How do plant like protists help humans?
nirvana33 [79]
Plant-like protists<span> produce almost half of the oxygen found on our planet through the process of photosynthesis.</span>
4 0
3 years ago
Other questions:
  • Which of the following is TRUE regarding angiogenesis?
    9·1 answer
  • The function of glycolysis is to?
    7·1 answer
  • The _______________ pathway of RNA interference is a result of double stranded DNA entering a eukaryotic cell. The _____________
    15·1 answer
  • Glaciers erode land through which two processes?
    5·2 answers
  • Gentoo penguins will present a mate with a pebble that they find to attract a mate. Emperor penguins have a specific call and mo
    5·2 answers
  • Living parts of an ecosystem are<br> called
    9·1 answer
  • O<br> Compared to the outside of the cell, the inside of<br> the cell is
    6·2 answers
  • ___________ is the splitting of the cytoplasm
    10·2 answers
  • Moting happens when the
    13·1 answer
  • (HELP) After crossing-over as shown below, what would be the sequence of the alleles on each chromatid?
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!