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Rudiy27
3 years ago
10

What structure is responsible for the opening and closing of the stomata

Biology
1 answer:
katen-ka-za [31]3 years ago
6 0
There are guard cells surrounding each stoma that cause them to open or close throughout the life cycle of the plant. This occurs in response to water and ions concentration in the plant cell.
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How are convection current in the mantle and in the oceans similar? How are they different?
Vanyuwa [196]

Hello,


Convection currents in the mantle and in the ocean are similar because they both are responsible for the shaping the Earth's surface. Two forces are behind the movement of Earth's huge land masses. Those forces are convection and gravity.


Convection describes the movement of gasses or liquids due to different temperatures. The convection currents just beneath Earth's crust flow very slowly, causing movement in the plates above them. These currents are different with the fact that they produce different plate movements. Ridge push occurs from the convection currents in the ocean. These occur at mid-ocean ridges, which are elevated higher than the rest of the ocean floor. In contrary, convection causes material in the mantle to flow. Due to combined action of convection currents and gravity, Earth's plates are in constant motion.



Faith xoxo


8 0
3 years ago
HISTORICAL DATA QUIZ IN SCIENCE PLZZ HELPP ME BEEN HAVING A ROUGH DAY IF YOU COULD HELP I WOULD REALLY APPRECIATE ITT ASAPPP
Ivan

Answer:

c. Montana

Explanation:

Although many states have dinosaur sites, so far the states that seem to be the most prolific producers of fossils are Colorado, Utah, Wyoming, and Montana.

6 0
3 years ago
The first of every species name is?
PilotLPTM [1.2K]
Mammal I’m not sure sorryyyy
8 0
3 years ago
If one strand of a DNA molecule has the sequence of bases 5′-ATTGCA-3′, the mRNA synthesized following the template will be ____
rjkz [21]

If one strand of a DNA molecule has the sequence of bases 5-ATTGCA-3, the mRNA synthesized following the template will be 3-UAACGU-5.

Nucleotides are added to the growing strand one at a time in the precise sequence dictated by the existing  template strand. adenine and thymine are always paired with each other in the Watson-Crick DNA model, and cytosine is always paired with guanine.

The nucleotide sequence of DNA serves as a template for the nucleus, where mRNA is synthesised. The RNA polymerase II enzyme is responsible for this reaction's catalysis and needs nucleotide triphosphates as its substrates. Transcription is what happens in the nucleus when DNA is converted into mRNA. The cytoplasmic synthesis of proteins is controlled by the mRNA. The cytoplasm is where the mRNA that is produced in the nucleus attaches to the ribosomes after being transported from the nucleus. The nucleotide sequence of the mRNA serves as a guide for the assembly of proteins on ribosomes. The cytoplasm receives a "message" from the nucleus via mRNA. The nucleotide sequence of the mRNA, which is complementary to the nucleotide sequence of the messenger RNA, encodes the message.

To learn more click on the link below

brainly.com/question/15095679

#SPJ4

4 0
1 year ago
Compare the basic treatments for type 1 and type 2 diabetes.
Alchen [17]
Type 1: Take insulin, count carbohydrates, frequent blood sugar monitoring, eating healthy foods, exercising regularly and eating a healthy diet. Type 2: Nutrition Therapy, physical activity, medication, specialist care, and bariatric surgery
6 0
3 years ago
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