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
ddd [48]
2 years ago
7

Why are a plants stomata generally open during the day and closed at night brainly?

Biology
1 answer:
bagirrra123 [75]2 years ago
4 0
To keep in the stored enzymes so it can keep synthesizing at night, even when there is no sunlight. -- Stomata serve two main functions - they allow carbon dioxide to reach the cells in the leaf where the majority of photosynthesis takes place and they allow water to be transpired out off the leaf. During the day, stomata are generally open to allow photosynthesis to take place as quickly as possible. At night, when the lack of light means photosynthesis can't take place, many plants close their stomata to reduce water loss. There is one group of mainly desert plants, known as CAM plants, that keep their stomata closed during the day when water loss would be greatest, and open them at night, using a biochemical method to effectively store carbon dioxide in the leaf overnight.
You might be interested in
Please Help! I will give you brainiest!
tatuchka [14]

Answer:

Fur

Explanation:

It helps in keeping body warm.....Wheras skeleton function like stem i.e supporting the body

5 0
2 years ago
1
Xelga [282]

Answer:

At the most basic level of biodiversity, climate change is able to decrease genetic diversity of populations due to directional selection and rapid migration, which could in turn affect ecosystem functioning and resilience (Botkin et al.

Explanation:

<em> </em><em> </em><em> </em><em>s</em><em>o</em><em>u</em><em>r</em><em>c</em><em>e</em><em>s</em><em> </em><em>f</em><em>o</em><em>r</em><em>m</em><em> </em><em>google</em><em>;</em><em>)</em>

<em>Hope</em><em> </em><em>it'll</em><em> </em><em>help</em><em>.</em>

8 0
3 years ago
The city of Los Angeles wants to know if there is a connection between physical fitness and air pollution. Fifty volunteers from
zheka24 [161]

Answer:

Control group: volunteer stationary bike riders in a pollution-free chamber

Experimental group: volunteer stationary bike riders in a chamber filled with air pollutants common to Los Angeles

Independent variable: exposure to air pollution

Dependent variable: The heart rates (physical fitness) of the volunteer riders.

Explanation:

In a scientific experiment, data is compared between the control group and experimental group to ascertain the effect of the independent variable on the dependent variable. A control group is the group in an experiment that is not treated with the independent variable i.e. the independent variable is controlled while the experimental group is the group that is treated with an independent variable.

N.B: The independent variable is the variable controlled by the experimenter in order to influence the dependent variable (measurable outcome).

In this experiment, the independent variable is the AIR POLLUTION the volunteer riders are exposed to while the dependent variable is the PHYSICAL FITNESS/ HEART RATES of the volunteer riders, which is dependent on the exposure to air pollution (independent variable).

The control group in this experiment is the volunteer riders placed in a POLLUTION-FREE CHAMBER where the independent variable cannot influence or have any effect on the measurable variable (dependent). The experimental group is the volunteer riders placed in a CHAMBER FILLED WITH AIR POLLUTANTS. The independent variable (air pollution) has been changed in the experimental group.

4 0
3 years ago
Which choice describes what may happen if a predator species disappears from an ecosystem?
Morgarella [4.7K]
The answer is O growth in population of all other species
8 0
1 year ago
Please answer this, ITS IMPORTANT AND I NEED ASAP!!!
Neko [114]

Answer:

Chromosomes contain genes, which help to determine an organism's traits. Genes come in alternate forms called alleles. The actual gene combination that an organism receives from its parents is called its genotype, while the trait that gets expressed as a result is referred to as its phenotype. If an offspring receives the same type of allele for a given gene from each parent, it is said to be h o m o z y g o u s. If the alleles differ, it is h e t e r o z y g o u s.

Explanation:

5 0
3 years ago
Other questions:
  • What types of carbohydrates are made of chains of alpha and beta glucose?
    12·1 answer
  • How is human dna prepared for use in gene transfer?
    10·1 answer
  • PLEASE ANSWER!
    10·1 answer
  • Which discovery did scientists make when they arranged elements in order of increasing atomic mass?
    5·1 answer
  • Which is not a true statement about goals? Choose all that apply.
    7·2 answers
  • Which plant structure is most like the hyphae of fungi
    12·2 answers
  • A knife is an example of a(n) _______.
    6·1 answer
  • Some animals that are scavengers can eat bacteria-laden meat that would harm humans. Which of the following best explains why th
    9·2 answers
  • There was snow and a 25 mph wind on Monday. On Tuesday, there was rain and a 10 mph wind. Which changes to the weather component
    10·1 answer
  • Options
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!