<span>d. skeletal muscles and sensory receptors
The nervous system is a body system responsible for passing and regulating chemical messages and electrical impulses throughout the body for control, movement and responding.
The somatic nervous system is part of the nervous system that functions for voluntary movement. </span>
Actually many foods for example any fruit that u eat or even a simple thing that includes sugar
Answer:
"As a molecule moves through the plasma membrane it passes through <em>a hydrophilic layer of phospholipid heads then a hydrophobic layer of phospholipid tails and then another hydrophilic layer of phospholipid heads".</em>
Explanation:
Biological membranes are formed by two lipidic layers, proteins, and glucans.
Lipids characterize for being amphipathic molecules, which means that they have both a hydrophilic portion and a hydrophobic portion at the same time. These molecules have a lipidic head that corresponds to a negatively charged phosphate group, which is the polar and hydrophilic portion. They also have two lipidic tails that correspond to the hydrocarbon chains -the apolar and hydrophobic portion- of the fatty acids that esterify glycerol.
Membrane lipids are arranged with their hydrophilic polar heads facing the exterior and the interior of the cells, while their hydrophobic tails are against each other, constituting the internal part of the membrane.
Through this lipidic bilayer, some molecules can move from one side of the cell to the other, which happens because of concentration differences. When this occurs, molecules must pass through the hydrophilic layer of phospholipid heads then through the hydrophobic layer of phospholipid tails and then again through another hydrophilic layer of phospholipid heads.
Answer:
<u>Chromosomes</u> form is DNA in during mitosis.
Explanation:
In the context of the cell cycle, mitosis is the part of the division process in which the DNA of the cell's nucleus is split into two equal sets of chromosomes.
Answer and explanation:
One negative effect that floods have on an ecosystem is that they destroy natural habitats and wildlife homes.
One positive effect that floods have on an ecosystem is that they can make fertile land a soil for plants a crops to grow.
One impact hurricanes have on an ecosystem is that they can bring unnative species from one place to another.
One impact tornados have on an ecosystem is that they can also destroy homes of native wildlife species.
Hope this helps!
Also, if this is not a multiple choice question, please give me a little bit of credit. Thank you!
