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
scoray [572]
3 years ago
13

Plz help with science!

Biology
1 answer:
alisha [4.7K]3 years ago
7 0
B alkaline earth medal I think
You might be interested in
Which of these would be the most helpful when identifying a mineral?
hodyreva [135]
All of them, they are all very important factors to test for the identifying
3 0
3 years ago
Read 2 more answers
. As arteries extend outward they decrease in thickness until they turn into microscopic vessels known as_ ((frog dissection))
sveticcg [70]

ANSWER: The correct answer is CAPILLARIES

EXPLANATION: Arteries are the muscular wall tube that carries oxygenated blood from the heart to other part of the body. The arteries extend outward from the heart, and form capillaries.

The capillaries are hairlike thinnest blood vessels, that helps to join the arteries and ventricles together. The blood in the arteries extends to the capillaries of the organs where the blood is supplied, and then moves out to from the organ via the ventricles.

The capillary starts from the part of the arteries that are very thin.

7 0
4 years ago
What must happen to pyruvate before it can enter the kreb’s cycle? explain.
elena-s [515]

i think that before the Krebs cycle begins, pyruvic acid, which has three carbon atoms, is split apart and combined with an enzyme known as CoA.

4 0
4 years ago
Read 2 more answers
With all his gear, Neil Armstrong weighed 360 pounds on Earth. When he landed on the Moon, he weighed 60 pounds. Why?A. His mass
devlian [24]
C because the moon has less mass than Earth the Gravitational Force is less and thus anything on the moon weighs less than on Earth
7 0
3 years ago
Read 2 more answers
What structure of the sarcomere shortens during muscle contraction?
LiRa [457]

Answer:

The Z lines and H- zone shortens during the muscle contraction.

Explanation:

Sarcomere is the area between the two Z lines. The Z- lines are present in the centre of I - band and H - zone is present in the A - band. The actin filaments which are thin filaments present in I- band and contracts, slide over the myosin filament during contraction.

The I - band, H- zones are became shortens as they are thin than the A- band. It is anisotropic band having thick myosin filaments. They are not flexible and remain in its constant shape during the muscle contraction.

After the muscle contraction, the A- band and the H- zone comes to their original shape. In other words, the sarcomere shortens and comes back during muscle contraction, and relaxation.

3 0
4 years ago
Other questions:
  • Coral reefs are made of
    5·1 answer
  • In which of the following settings would sound waves travel the fastest through the air?
    7·1 answer
  • Please Help (:
    15·1 answer
  • When bacteria causes disease they're often called what​
    11·1 answer
  • Hope this help good luck
    5·1 answer
  • What is a reproductive strategy​
    5·1 answer
  • Which features are found in plant cells but not in animal cells?
    7·1 answer
  • How many different types of gametes can be produced by a plant with genotype aabbccddeeff?
    11·1 answer
  • Which of the following is a chemical change that occurs to the food?
    10·1 answer
  • Identify which is Active and which is Passive
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!