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
Pepsi [2]
3 years ago
8

7TH GRADE SCIENCE

Biology
1 answer:
I am Lyosha [343]3 years ago
4 0

Answer:

For example, the respiratory and circulatory systems work together to provide the body with oxygen and to rid the body of carbon dioxide. The lungs provide a place where oxygen can reach the blood and carbon dioxide can be removed from it. Each of your body systems relies on the others to work well. Your respiratory system relies on your circulatory system to deliver the oxygen it gathers, while the muscles of your heart cannot function without the oxygen they receive from your lungs. ... Your circulatory system delivers oxygen-rich blood to your bones.

Explanation:

You might be interested in
Which of the following are limitations of HMO plans? (Select all that apply.)
anyanavicka [17]
B)<span>limited number of healthcare providers
&
c) </span><span>limited coverage for healthcare services

</span>
8 0
3 years ago
Read 2 more answers
The Roman Colosseum and many other ancient examples of architecture contain the metamorphic rock marble as part of their constru
Snowcat [4.5K]
True. Metamorphic rocks are pre-existing rocks that have been modified through the exposure to unusual temperatures and/or pressures. It has been used for blackboard, roofs, sidewalks, floors, and marble is an example of a  metamorphic rock that is used to make floor tiles, countertops and it is carved into statues and was used extensively in the building of the Roman Colosseum and other historic buildings. 
3 0
3 years ago
Why is vinegar used in food preservation?
weqwewe [10]
Vinegar is an extremely acidic liquid. Very few microorganisms (ie bacteria and fungus which cause foods to spoil) can survive in such an acidic environment. Among other effects, it can destroy their cell walls, and prevent their own enzymes working (enzymes are extremely pH sensitive). There are a small number of microorgamisms which are adapted to survive in extreme acidity. However, this adaptation prevents them from surviving in more 'normal' environments. Therefore, anything which can survive in the vinegar, will not likely survive on your kitchen surface, and the same is true the other way around. Therefore, as vitually nothing can colonise whatever is in the vinegar, the food will be very effectively preserved. . . . . . . . . . . you can say........................ . . the low pH a nd high acidity of vinegar destroy bacteria
3 0
3 years ago
Explain the most common machine in the human body
Ilya [14]
HI there!!!!!!

It would probably be the heart, brain or our muscles; they are constantly working !

5 0
3 years ago
Given the parents AABBCc × AabbCc, assume simple dominance for each trait and independent assortment. What proportion of the pro
Anit [1.1K]

Answer:

3/4

Explanation:

If we assume simple dominance and independent assortment for each trait, we can use Mendel's Law of Segregation to predict the phenotypic proportions in the offspring of the parental cross AABBCc x AabbCc.

<h3><u>Gene A</u></h3>

AA x Aa

  • F1 genotypes: 1/2 AA, 1/2 Aa
  • F1 phenotypes: all A
<h3 /><h3><u>Gene B</u></h3>

BB x bb

  • F1 genotypes: 1 Bb
  • F1 phenotypes: all B
<h3 /><h3><u>Gene C</u></h3>

Cc x Cc

  • F1 genotypes:  1/4 CC, 2/4 Cc, 1/4 cc
  • F1 phenotypes: 3/4 C, 1/4 cc

We want to know the proportion of progeny with all dominant phenotype (A_B_C_). Since the genes are independent, we can multiply the probabilities of each gene to obtain the overall probability of having a ABC progeny:

<h3>1 A_ x 1 B_ x 3/4 C_ = 3/4 A_B_C_</h3>
6 0
3 years ago
Other questions:
  • Elaborate on the changes in molecular motion of particles as they change from solid to liquid to gas.
    15·1 answer
  • What is one similarity between condensation and<br> precipitation *<br> Your answer
    14·1 answer
  • The field of vision of this microscope is brightly illustrated and used for most microscopic work.
    12·1 answer
  • Filtrate flow through the renal tubule increases when glomerular filtration rate
    7·1 answer
  • How is blood pressure measured?
    13·1 answer
  • How can a trait skip a generation? (for example, the parents have the trait, their children do not, but then later, their grandc
    7·1 answer
  • Over a long period of time, helpful variations in a species replace the unfavorable ones. This change can lead to
    12·1 answer
  • What is the most significant contributor to sea level rise?
    14·1 answer
  • During ______, the gravitational forces of the sun and moon pull on the Earth from the same direction, or opposite dire
    9·1 answer
  • Snapdragons are a type of flower. When red snapdragons are crossed with white snapdragons the resulting flowers are all pink. A
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!