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bonufazy [111]
3 years ago
7

A vein in a leaf has what important function?

Biology
1 answer:
SpyIntel [72]3 years ago
6 0
Veins provide support for the leaf and transport both water and minerals (via xylem) and food energy (via phloem) through the leaf and on to the rest of the plant.
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Soap molecules have a hydrophilic head and a hydrophobic tail. What happens when you put soap in water?
Kisachek [45]
I believe the correct answer from the choices listed above is option D. When you put soap in water, the  hydrophobic tails cluster together and exclude water and the <span>hydrophilic heads interact with water. Hope this answers the question. Have a nice day.</span>
4 0
3 years ago
• Dr. Smith wants to examine whether a new drug increases the maze running
VARVARA [1.3K]

Answer:

Independent Variable: Give one group the drug and dont give the other group the drug

Dependent Variable:The data of if the drug improves the rats memory(if their memory is better, the same, or made worse)

5 0
4 years ago
Carson divided 40 unripe bananas evenly among eight paper bags and sealed the bags. He poked 20 small holes in four of the bags
olga2289 [7]

Answer:

See the answer below

Explanation:

From the illustration of the experiment, the question that Carson can best answer  is that<em> "Do bananas develop more brown spots if they are kept in bags with holes  compared to bags without holes?"</em>

The independent variable in the experiment is the hole poked in the bags while the dependent variable is the number of brown spots on each banana. The difference between the subjects is the hole poked in the bags, hence, any difference in the number of brown spots between bananas in the bags with holes and those in the bags without holes can be attributed to the hole poked in the bags.

<u>Therefore, the question that can be answered from the experiment is to see if poking holes in bags make bananas to develop more brown spots compared to bags without holes. </u>

4 0
3 years ago
8. Which of these is a behavioral adaptation?
sladkih [1.3K]

Answer:

A) A hognose snake pretends it is dead to trick a predator.

Explanation:There is behavioral adaption and structural adaption. Behavioral adaption are actions animals take in order to survive their environments such as hibernation or migration. Structural adaption is a characteristic in a plant or animal's body that helps it to survive its environment such as camouflage.  Answers B, C, and D are all examples of structural adaption.

6 0
3 years ago
Read 2 more answers
What organisms are at the bottom of the food chain?
ivolga24 [154]

Answer:

Photosynthetic organisms (plants and/or phytoplankton) are at the bottom of the food chain.

Explanation:

5 0
3 years ago
Read 2 more answers
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