Answer:
in the wall of the right atrium of the heart.
Explanation:
The sinoatrial node (SA), consisting of spindle-shaped cells, initiates the electrical activity of the heart. From its location in the right atrium in proximity to the superior vena cava, the electrical activity spreads to the atria, whose cells are larger than those of the SA.
B because it takes in nutrients through endocytosis so the membrane opens up and envelopes the nutrients
Answer:
This is because fatty acids can be made directly into acetyl CoA
Explanation:
I took the test!
Answer:
1. ocular lens,2. eyepiece,3. arm,4.focus knob,5.objective lens,6,stage,7,light source,8 coarse knob
Explanation:
I'm pretty sure these include light availability, oxygen levels, water movement, salinity, density and pH. These conditions often vary from habitat to habitat and will either support or limit the life processes of the marine organisms living there.
Hopefully that's right.
