These threadlike structures that form muscle fibers are called myofibrils.
They are very long fibers organized into myofilaments, that layer on top of each other to create myofibrils, which then layer in order to create muscle fibers, which then layer to create muscles, which they cover our entire body and make up the muscular system of organisms.
<span> nucleus () of an atom along with positively charged particles called </span>protons<span>.</span>
Answer:
B Presence of an atmosphere and a rock surface composition
Answer:
Plants absorb water from the soil by osmosis. They absorb mineral ions by active transport, against the concentration gradient. Root hair cells are adapted for taking up water and mineral ions by having a large surface area to increase the rate of absorption.
Answer:
fruit weight
Explanation:
There are mainly <u>two variables</u> being considered in an experiment: independent variable and the dependent variable.
The <em>"independent variable" </em>is the<u> variable that can be changed</u> while the <em>"dependent variable"</em> is the <u>variable that is affected by change</u>.
Among the choices above, it is only the "fruit weight" that is affected by change. The weight of the fruit will largely rely on the<em><u> absence or presence of the fertilizers in different quantities.</u></em> Therefore, it is the dependent variable. The independent variable, on the contrary, is the <u>amount of fertilizer given</u> because <em>it is being changed among the plants</em>.
