Subjects
PRICING
COURSES
SIGN IN
Start Free Trial
Lynn B.
Certified Teacher
Tutor Satisfaction Guarantee
Nutrition
TutorMe
Question:

Why does excessive exercise cause muscles to become stiff and sore?

Lynn B.
Answer:

During vigorous exercise, the circulatory system cannot supply oxygen to uncle fibers quickly enough. In the absence of oxygen, the muscle cells begin to produce lactic acid, which accumulates in the muscle. It is this build-up of lactic aid that causes soreness and stiffness.

Earth Science
TutorMe
Question:

What causes sinkholes?

Lynn B.
Answer:

Sinkholes are usually formed by the dissolving action of groundwater or the seepage of above-ground streams into the limestone below, causing cracks or fractures in subterranean rock.

Physical Science
TutorMe
Question:

Which chemical element is the most abundant in the universe?

Lynn B.
Answer:

Hydrogen (element 1) makes up about 75% of the mass of the universe.

Send a message explaining your
needs and Lynn will reply soon.
Contact Lynn
Ready now? Request a lesson.
Start Session
FAQs
What is a lesson?
A lesson is virtual lesson space on our platform where you and a tutor can communicate. You'll have the option to communicate using video/audio as well as text chat. You can also upload documents, edit papers in real time and use our cutting-edge virtual whiteboard.
How do I begin a lesson?
If the tutor is currently online, you can click the "Start Session" button above. If they are offline, you can always send them a message to schedule a lesson.
Who are TutorMe tutors?
Many of our tutors are current college students or recent graduates of top-tier universities like MIT, Harvard and USC. TutorMe has thousands of top-quality tutors available to work with you.