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
PilotLPTM [1.2K]
3 years ago
5

This is a cell, which is the basic unit of all life. All organs in human bodies are made of cells and require oxygen to survive.

Which two systems work together to deliver oxygen to cells throughout the body?
A) skeletal and endocrine
B) digestive and endocrine
C) skeletal and respiratory
D) respiratory and cardiovascular
Physics
1 answer:
kotegsom [21]3 years ago
5 0
The two systems that work together to deliver oxygen are D, respiratory and cardiovascular
You might be interested in
6. A light ray strikes a reflective plane surface at an angle of 560 with the surface.
Zolol [24]

Answer:

deez nouts

Explanation:

5 0
2 years ago
A vector has an x-component
9966 [12]

Explanation:

The magnitude of a vector v can be found using Pythagorean's theorem.

||v|| = √(vₓ² + vᵧ²)

||v|| = √((-309)² + (187)²)

||v|| ≈ 361

You can find the angle of a vector using trigonometry.

tan θ = vᵧ / vₓ

tan θ = 187 / -309

θ ≈ 149° or θ ≈ 329°

vₓ is negative and vᵧ is positive, so θ must be in the second quadrant.  Therefore, θ ≈ 149°.

4 0
3 years ago
When four people with a combined mass of 320 kg
ale4655 [162]
Each person is 80kg. 320/4
4 0
3 years ago
Which method involves using tools to control invasive species?
vitfil [10]

Answer;

Mechanical control

Explanation;

-Invasive species may cause environmental harm, economic harm, or impact human health. A key factor that makes many species invasive is a lack of predators in the new environment.

-Mechanical control usually refers to the mowing or mechanical cutting of an invasive plant infestation to limit seed production. With mowing, timing is essential. Invasive plants must be removed before the plants go to seed in order to be an effective method of control. Plants should be cut as close to the ground as possible and may have to be treated more than once in a growing season to achieve desired results.

5 0
3 years ago
a shopper pushes a cart 40.0m south down one aisle and then turns 90.0 degrees and moves 15.0m. He then makes another 90.0 degre
valentinak56 [21]

Answer:

Explanation:

The displacement is the distnce of the shopper from the starting point.

Sum of movement along the vertical = 40-20 = 20m

Movement along the horizontal (x direction) = 15.0m

Displacement will be gotten using the pythagoras theorem.

d = √20²+ 15²

d = √400+225

d = √625

d = 25.0m

Hence the shoppers total displacement is 25.0m

8 0
3 years ago
Other questions:
  • How long will it take to travel 200 km traveling 10 m/s ?
    11·1 answer
  • How many independent variables does a good investigator use in his or her experiment?
    7·1 answer
  • An ant is crawling along a straight wire, which we shall call the x axis, from A to B to C to D
    5·1 answer
  • The word electromagnetism in physics is used to describe one of the fundamental forces of nature this force is between somatic p
    15·1 answer
  • The mass of a ship before launch is 55,000 metric tons. The ship is launched down a ramp and drops a total of 10 vertical meters
    14·1 answer
  • A mixture that forms when one substance dissolves another is called
    14·1 answer
  • How longitudinal waves are formed
    5·2 answers
  • A disk with mass 1.64 kg and radius 0.61 meters is spinning counter-clockwise with an angular velocity of 17.6 rad/s. A rod of m
    10·1 answer
  • How much heat (in calories) are needed to raise the temperature of 60 g of water
    9·1 answer
  • What is the mass in rams of 30.00 ml of a liquid that has a density of 1.21 g/ml?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!