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
horrorfan [7]
3 years ago
9

Joe, a hiker, stands at the top of a hill on a trail above the ocean. Joe's friend Dave is just starting out at the trailhead, w

hich is at the beach. Which statements about Joe and Dave are accurate? Check all that apply.
answers are
1. Joe is at a higher altitude than if he was at the beach.
2. The air Joe is breathing is less dense than the air at sea level.
4. If Joe keeps going up, air pressure will continue to decrease.
Biology
2 answers:
Jobisdone [24]3 years ago
6 0

Answer:

If Joe keeps going up, air pressure will continue to decrease.

Explanation:

Rashid [163]3 years ago
4 0

Answer: 1, 2, 4 are accurate.

Explanation:

1. Joe is on a hill (on a trail) above the ocean. The beach and ocean are at similar altitudes. Therefore Joe is at a higher altitude than if he was at the beach.

2. Since Joe is on a hill, he has a higher altitude than at sea level. Air at a higher altitude has lower density because there is less air "ontop" of itself than at lower altitudes. As well, his hill is above the ocean, which means there is a lot of water, making the air more humid than where he is. Humidity also makes air denser.

4.The air pressure will decrease if Joe goes up to higher altitudes because there will be less air on top of itself.

You might be interested in
How does eukaryotic cellular division differ from prokaryotic?
Feliz [49]
Prokaryotic cells are simpler than eukaryotic cells. This is because prokaryotic cells have  a single circular chromosome, no nucleus, and few other organelles. Eukaryotic cells have many chromosomes inside a nucleus, and they also have more organelles.
6 0
4 years ago
blood flows through an artery that is partially blocked. as the blood moves from the wider region into the narrow region, the bl
snow_tiger [21]

Blood flows through an artery that is partially blocked. as the blood moves from the wider region into the narrow region, alternately increases and then decreases.

<h3>What is the purpose of blood flow in heart?</h3>

The removal of positive charge by electrochemical gradients causes the membrane potential of the cell to shift more strongly in the direction of the equilibrium potential for potassium.

The membrane would become more negative as potassium permeability through the membrane increased. Given that potassium is a positively-charged ion and that the intracellular environment has a net negative charge, enhancing the membrane's permeability would result in a more negative membrane.

For instance, the amplitude of the potassium concentration gradient across the myocyte decreases as the external potassium level rises, lowering the resting membrane potential.

To know more about blood flow in heart you may visit :

brainly.com/question/4220852

#SPJ4

4 0
1 year ago
There are two types of vitamins: , which are stored in the liver (excess of them becomes toxic), and , which are excreted in the
Gnoma [55]

Answer:

I think these will be the fat soluble vitamins .....the A,D,E,K

Explanation:

The liver stores vitamin A, D, E, K and B12. The first four of these are all fat soluble. This means that the bile secreted during digestion is essential for absorbing them so that the body can use them. If bile production is compromised by liver damage, the proper absorption of these vitamins may be affected.

3 0
3 years ago
What are the general features of the prymnesiophyceae
Anna71 [15]

Answer:

  1. Prymnesiophyceae is an algal class. It is placed in the haptophyte clade.
  2. It is unicellular.
  3. It has flagella (usually two) known as haptonema. These structures help in attachment and feeding.
  4. The plastids are surrounded by four-layered membranes.
  5. Its species are mostly found in the marine environment, thus classified as phytoplanktons.
  6. Many members of prymnesiophyceae have cell covering made up of calcium carbonate. These structures are known as coccoliths.

8 0
4 years ago
The bushes have alleles for blue and red berries. Bushes with both red and blue alleles make purple berries.
Sedbober [7]

Answer:For more plants to have blue berries

Explanation:

3 0
3 years ago
Other questions:
  • What is the density if the mass is 10 grams and the volume is 50 ml?
    6·1 answer
  • Which two examples show adaptations for plants growing in the desert?
    14·1 answer
  • Mucin is a protein present in saliva and other secretions. When mixed with water, it becomes the slippery substance known as muc
    7·1 answer
  • the writers and philosophers of the enlightenment believed that's government decisions should be based on
    6·2 answers
  • The bicarbonate buffering system in the blood is the most important buffering system in the ECF. Bicarbonate ion and carbonic ac
    14·1 answer
  • Plz help
    7·2 answers
  • How do snails see an invisible trail?
    5·1 answer
  • PLEASE I NEED HELP WITH THIS SCIENCE HOMEWORK WILL GIVE BRAINLIEST
    12·2 answers
  • Name three different alleles for human hair color
    14·1 answer
  • HURRY! Pls. What occurs when molecules use ATP to pump molecules from one side of a membrane to the other?
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!