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
Lemur [1.5K]
2 years ago
6

Ralph is looking at a blood vessel under a microscope as part of his study about the cardiovascular system. He notices that the

vessel contains blood and has valves. What is the blood vessel that he is observing?
Biology
2 answers:
coldgirl [10]2 years ago
8 0

Answer:

Veins

Explanation:

inn [45]2 years ago
3 0

Answer:

the person is correct its VEINS

Explanation:

You might be interested in
Am I right? Please someone help me
Dima020 [189]

Answer:

A. 17,100

Explanation:

The half life of carbon-14 is around 5,700 years. When the shell contains 50% of its original carbon-14, 5,700 years have passed. 25% means another 5,700 years have passed, meaning 11,400 years in total have passed. 12.5% means another 5,700 years have passed, meaning 17,100 years have passed in total.

3 0
2 years ago
What abiotic factors in the grasslands affect the zebra
Murrr4er [49]
Abiotic means not alive like rocks and soil. Abiotic Factor that affect the zebras in the grasslands is: water
Still trying to figure out the other abiotic factors.
6 0
3 years ago
1. · Explain the origin of coal and name its various varieties.
scZoUnD [109]

Answer:

Coal gas is a flammable gaseous fuel made from coal and supplied to the user via a piped distribution system.It is produced when coal is heated strongly in the absence of air. ... Facilities where the gas was produced were often known as a manufactured gas plant (MGP) or a gasworks.

Coal tar is a thick dark liquid which is a by-product of the production of coke and coal gas from coal. It has both medical and industrial uses. Medicinally it is a topical medication applied to skin to treat psoriasis and seborrheic dermatitis (dandruff). It may be used in combination with ultraviolet light therapy.

: a bituminous coal suitable for making into coke.

8 0
2 years ago
While hiking in a rural area, you encounter a wetland and conclude that it's a swamp. Which feature helped you reach this conclu
ExtremeBDS [4]

Answer:

I think answer

B. It contains a number of carnivorous plants.

8 0
3 years ago
Read 2 more answers
Over 99 percent of calcium in the body is found within the A. Bones and Teeth B. Stomach and small intestine C. Liver and spleen
Wewaii [24]

Answer : ) A. Bones and Teeth

5 0
2 years ago
Other questions:
  • How do substances get into and out of the cell?
    7·1 answer
  • How many players make up a soccer team while they are playing on the field? Helppppp
    11·1 answer
  • Which describes something in nature and predicts how it will behave without explaining why?
    9·2 answers
  • This process is used for growth repair it is also a form of reproduction in asexual organisms
    7·1 answer
  • Which of the following statements about biogeochemical cycles is true?
    10·1 answer
  • What major factors determine the marine ecosystem that exists in a particular place?
    10·1 answer
  • Which feature must a community have in order to use wind energy?
    8·1 answer
  • Mineral lab earth science
    10·1 answer
  • Describe one method for temporarily storing carbon in the natural cycle.
    10·1 answer
  • what technological advantages allow seafaring Arabs during the middle Ages to dominate the Mediterian Sea and trade with east Af
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!