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
PSYCHO15rus [73]
3 years ago
11

This type of circulatory system has cells in constant contact with circulatory fluid (no vessels). Some smaller organisms have t

his type of circulatory system because it isn't efficient for larger organisms. A) closed B) large C) open D) vessel
Biology
1 answer:
Temka [501]3 years ago
3 0
She's right C I just took da test
You might be interested in
Two ways in which the evolution of organisms can have a harmful effect on humans
Andreyy89
They can adapt and develop immunity to pesticides making it more difficult for humans to force them to leave our properties. You can also discuss the<span> evolution of antibiotic resistance in bacteria, which has a significant harmful effect on humans. It's mostly just developing methods of resistance to human impacts.</span>
6 0
3 years ago
Will give brainliest!
svet-max [94.6K]

Hard water is not considered a health hazard. However, it has been stated by the National Research Council that hard drinking water usually donates a small amount towards entire magnesium and calcium in the human dietary requirements.  

They further state that in some of the cases, where dissolved magnesium and calcium are very large, water could be a prime contributor of magnesium and calcium to the diet. However, very high hardness, that is, above 300 ppm that is not usual of drinking water arising from surface water, may be related to the higher threat of kidney stones and cardiovascular diseases.  

In the majority of the cases of kidney stones, the blood in the body of human being, due to some kind of inherent issues, begins to absorb more calcium from water and food that is in the real sense required. As a consequence, the extra amount of calcium gets deposited on the walls of the kidneys in the process of excretion.  


6 0
3 years ago
the map show a change in the migration patterns of three different species of migratory birds over 10 years period A scientist b
marshall27 [118]
Could you send the picture?
4 0
3 years ago
What gasses in the atmosphere are especially important to plants
Aloiza [94]

Carbon Dioxide (CO2) because it is essential to cellular processes that allow plants to thrive and generate oxygen that we can breathe. Nitrogen could also be an example of one gas that's important.

6 0
3 years ago
Which statement best describes both insulin and glucagon? They both provide structural support, but only insulin is a carbohydra
Tomtit [17]

Answer:

They are both hormones that regulate blood-sugar levels

Explanation:

Insulin is a hormone that controls the blood glucose level. It released in the blood stream when the glucose level increases after eating food. It is produces by pancreas, insulin helps the glucose to enter the body's cells where it can either be stored for future use or can be used for energy.

Glcogen  is produced by alpha cells of pancreas, it is a peptide hormone. Its main function is to raise the concentration of fatty acids and glucose in the bloodstream. It is one of the main catabolic hormone of the body

As per the above mentioned statements, the option 'They are both hormones that regulate blood-sugar levels' is the correct answer.

5 0
3 years ago
Read 2 more answers
Other questions:
  • Which charactistic is a property of water ?
    9·2 answers
  • The skin synthesizes a precursor of ______ in response to uv radiation in sunlight.
    5·1 answer
  • Which statement is incorrect about natural selection?​
    13·2 answers
  • Which examples describe how a plant might meet the challenge of getting and using energy? Choose all answers that are correct. A
    7·1 answer
  • Describe the chemical and physical structure and parts of a gene.
    14·1 answer
  • The olfactory bulbs of the sheep ___. a. located more superiorly then humans b. are less important as a food getting sense then
    15·1 answer
  • Which level(s) of organization are the main focus of<br><br> Vitor Becker's work?
    9·1 answer
  • Which biome has the highest average temperature?
    15·2 answers
  • Pasagot please need lang​
    8·1 answer
  • Which data would not affect maximum likelihood estimates of phylogenies when comparing different tree hypotheses?.
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!