There are 3 kinds of contraction in skeletal muscle:
Concentric contraction: The muscle in this contraction will gives force more than the load gives. This will make the muscle shorten as it pulling the load.
Eccentric contraction: In this contraction, the force given by muscle is not enough to pull the load. This causes the load pulling the muscle instead. So the muscle will be lengthened as the load moving away.
Isometric contraction: In this contraction, the length of the muscle will be kept same by adjusting the force given to be equal to the force needed.
Grana is the stacks of thylakoids embedded in the stroma of a chloroplast.
Answer:
If the progesterone levels are reduced or withdrawn during pregnancy, then the uterus may not be able to carry the baby to term because it would contract more and perastalsis may increase which may cause spotting and miscarriage.
Explanation:
Progesterone is a female sex hormone. It’s produced mainly in the ovaries. It is necessary for the maintenance of pregnancy. Progesterone's main job is to get your uterus ready for pregnancy.After ovulation progesterone helps thicken the lining of the uterus to prepare for a fertilized egg. Along with that it also
necessary for breast development and breastfeeding.
Hello. This question is incomplete. The full question is:
"Using the prefix micro- and using what you know about meteoroids, which description below would best fit?
A. a large particle of dust or rock moving at slow speeds through space. B. a small particle of dust or rock moving at fast speeds through space. C. a large particle of dust or rock moving at fast speeds through space. D. a small particle of dust or rock moving at slow speeds through space."
Answer:
B. a small particle of dust or rock moving at fast speeds through space.
Explanation:
Micrometeoroids are small particles of dust or rock, smaller than asteroids, sometimes smaller than an atom, and that roam in space at high speeds. Depending on the diameter of a micrometeoroid, it can reach speeds close to the speed of light.
Micrometeoroids are fragments that have been released from an asteroid or from another rocky celestial body. They are a concern for astronauts who can be reached by them.
