1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
kaheart [24]
3 years ago
6

Why are a plant's Stomata generally open during the day and closed at night?

Biology
1 answer:
marin [14]3 years ago
7 0
When stomata are open, carbon dioxide enters the plant through stomata. Carbon dioxide is necessary for the process of photosynthesis in which it is converted together with water into oxygen and glucose. For most plants, it is necessary that stomata are opened during the day when there is a lot of Sunlight also necessary for the process of photosynthesis.

However, some plants from the arid locations have <span>stomata closed during the day, so they reduce water loss that way. In the night when is colder, stomata open and carbon dioxide enters through stomata. </span>
You might be interested in
Look at the picture below.<br> What does this picture represent?
nata0808 [166]
A. Atoms with an ironic bonds
6 1
3 years ago
Read 2 more answers
Whales and hippos share what 3 characteristics?<br><br><br>source is https://youtu.be/lIEoO5KdPvg
NARA [144]
Answer: Hairlessness and Glands
explanation:Another notable similarity between the two groups is minimal hair. Both hippos and whales possess barely any hair on their bodies. They do not have sweat glands, either. These are both characteristics that can assist them in their aquatic lifestyles.
3 0
3 years ago
You and your roommate do a genetic analysis and learn that you share the same maternal ancestor 15,000 years ago in Europe. Whic
Vesnalui [34]

Answer:

Mitochondrial DNA.

Explanation:

Mitochondria is known as the power house of the cell and one of the important organelle responsible for the production of energy. Mitochondria contains its own DNA.

To understand the maternal ancestor history, the mitochondria DNA  must be studied. The mitochondria is solely obtained from the mother as the egg contains large amount of cytoplasm that contains mitochondria. The mitochondria can never be inherited from paternal origin as the sperm contains few amount of cytoplasm and mitochondria.

Thus, the answer is mitochondrial DNA.

4 0
3 years ago
Which of the following statements about excision repair is correct?
maxonik [38]

Answer:

a. True, b. False, c.True, d. True

Explanation:

a. Base excision repair is started by a DNA glycosylase  that recognizes the changes and removes the altered base by cleavage of the glycosidic bond binding the base and the deoxyribose sugar together.

b. Nucleotide excision repair works by a cut-and patch mechanism that removes their heavy lesions, including pyrimidine dimers and nucleotides . Endonucleases are responsible for the lesion of the damaged strand.

c. Nucleotide excision repair  is initiated by the proteins namely UvrA, UvrC, and UvrB in Escherichia coli.

-UvrD (helicase II) later removes the damaged strand

-DNA polymerase I (PolI) fills in the resulting gap.

d. DNA glycolases removes the damaged nitrogenous base.

-It leaves the sugar-phosphate backbone intact and thus creating an  apurinic/apyrimidinic site, which is commonly referred to as an AP site.

e. Xeroderma pigmentosum complementation group A(XPA)

-This is an essential protein in the nucleotide excision repair pathway.

- It helps to make a pre-incision complex along with other proteins.                

4 0
3 years ago
What phenomenon is considered to be evidence of the universe "cooling off" after the great explosion of the
Wewaii [24]

Answer:

If I’m correct it’s O cosmic background radiation

Explanation:

3 0
3 years ago
Read 2 more answers
Other questions:
  • When people feed wild dolphins, which of the following is LEAST likely to occur?
    13·1 answer
  • What kind of relationship would a caterpillar and a tree have? A. competitive relationship B. commensality relationship C. mutua
    14·2 answers
  • Is the following sentence true or false?? Fermentation releases more energy than respiration.
    11·1 answer
  • What are two diffrences between replication and transcription?
    13·1 answer
  • Which came first the chicken or the egg
    14·2 answers
  • The difference between generalized and specialized transduction is:___________
    7·1 answer
  • True or false?
    14·2 answers
  • How does Darwin’s Finches support the argument that genetic variation increases the survival rate of certain individuals in a po
    11·1 answer
  • If mitosis happens in our gonad cells that produce egg or sperm. How will it impact the progeny's chromosome number? Emphasize a
    9·1 answer
  • "Cellular respiration takes the energy stored in glucose and transfers it to ATP." Other word(s) for transfers:
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!