Answer:
Small vessels that carry blood away from the heart to the capillaries are <u>Arterioles</u>. Muscular-walled vessels that carry blood away from the heart are <u>Arteries</u>. One-cell-thick microscopic vessels that function to exchange nutrients and wastes are <u>Capillaries</u>. Small vessels that connect to the capillaries that carry blood back to the heart are <u>Venules</u>. Vessels that carry blood back to the heart are <u>Veins</u>.
Explanation:
We have different types of vessels in our bodies. We can divide them by their size and structure. Starting from the ones that carry blood away from the heath, we have the arteries. Arteries are vessels of big diameter that have muscle around them. Then, the arteries branch into arterioles, which have a smaller diameter. The arterioles branch into capillaries. These are small vessels with thin walls that allow the exchange of nutrients, wastes, and gases with the neighboring tissues. Once that the blood flows through the capillaries, it goes to the venules, which are small veins that will carry the blood to the veins and these to the heart. The veins do not have muscles in their structures, and their walls are thinner than the ones in the arteries.
I recommend a food web, because the arrows show exactly how the energy moves to different orginisms.
Answer:
D.
Explanation:
Whenever any clinical trail is conducted then the complete process is kept unbaised. Double blind testing can be defined as an experiment in which neither the researcher nor the person who is getting placebo and who is getting treatment knows. This is done in the clinical trials to keep the whole process unbaised.
Producers can make their own food by capturing the sun's energy, but consumers don't. Consumers need to eat other organisms to obtain energy.
<span>About 2 weeks.
Since the species isn't mentioned, I will assume human.
Definitions
Colostrum: This is the fluid expressed by the breasts just prior to and for a few days after giving birth. It contains a much higher concentration of nutrients in an easier to digest form than regular breast milk. This type of breast milk will be produced for 2 to 4 days after giving birth.
Transitional Milk: This is a thick creamy milk that contains more fat, lactose, vitamins and calories than colostrum. It starts within 4 days of giving birth and lasts approximately 2 weeks.
Mature Milk: This is a thinner milk that's about 90% water and 10% nutrients. It starts about 2 weeks after giving birth.
So the answer is about 2 weeks.</span>
