The artifact is approximately the same age as the index fossil.
What are the functions of the three types of openings in the model: openings in villi, alveoli, and the cell membrane?
Answer: These villi increase the surface area for more efficient food absorption. Within these villi, are present numerous blood vessels that absorb the digested food and carry it to the bloodstream. It is hence from the bloodstream, the absorbed food is delivered to each and every cell of the body.
The process of exchanging gases (carbon dioxide for oxygen) occurs at the lung alveoli. Alveoli are coated with a moist film that dissolves air in the lungs. Oxygen diffuses across the thin epithelium of the alveoli sacs into the blood within the surrounding capillaries.
In exocytosis, a cell releases substances into its environment. During exocytosis, vesicles that contain substances are moved to the cell membrane and fuse with it. This cell membrane function has three results: the total surface of the membrane increases, toxins or waste products are eliminated, and proteins become part of the plasma membrane.
Explanation:
thats all of the things for openings in villi the alveoli and the cell membrane
Answer:
blood picks up oxygen from the lung from tiny sacs called alveoli and transports it the cells where it enters the cell membrane
Explanation:
how do the conductivities of solutions of ionic compounds and covalent compounds compare
Answer:
Ionic compounds are hard and crystal-like, while covalent compounds are softer and more flexible.
Explanation:
Ionic compounds are also more soluble in water than covalent compounds. This is because water dissolves polar substances, which is the consistency of the ionic compound, whereas covalent compounds are non-polar.
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Where in an equation for photosynthesis does glucose belong?
on the left, because it is a product
on the left, because it is a reactant
on the right, because it is a product
on the right, because it is a reactant
The beach you want to go to is 700 miles away, so you decide to book a flight. However, you need to plan for your car ride to the airport, first. What is the speed of your car for each segment of your ride to the airport? PLEASE HELP!!!
HELP!
Why is the air on the sea cooler even on a hot sunny day?
a. Water has the ability to regulate its own temperature.
b. Water keeps flowing which prevents the water from heating up at all.
c. Water needs to absorb a lot of solar energy to warm up.
d. Water absorbs the Sun's energy but does not transmit it.
Answer: IS GOING TO BE (B)
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