All categories

2 years ago

HELP!HELP! PLZ HELP!!!!WILL MARK BRAINLIST WHEN I CAN!

Biology

2 answers:

s2008m [1.1K]2 years ago

8 0

Answer:

Explanation:

The stomata control gas exchanges in each leaf. The open and close as the help aid transpiration. This process is the diffusion of carbon dioxide into the leaf. By allowing the plant to take in carbon dioxide, they are able to photosynthesize. Without carbon dioxide, the plant wouldn't be able to photosynthesize. The stomata also help retain water in the plant by closing when the climate is hot or dry.

suter [353]2 years ago

4 0

Explanation:

Stomata are tiny openings or pores in plant tissue that allow for gas exchange. Stomata are typically found in plant leaves but can also be found in some stems. Specialized cells known as guard cells surround stomata and function to open and close stomatal pores. Stomata allow a plant to take in carbon dioxide, which is needed for photosynthesis. They also help to reduce water loss by closing when conditions are hot or dry. Stomata look like tiny mouths which open and close as they assist in transpiration.

You might be interested in

What type of inheritance can be seen in carriers

pogonyaev

Autosomal recessive inheritance: two unaffected people who each carry one copy of mutated gene for and autosomal recessive disorder (carriers) have a 25% chance with each pregnancy of having a child affected by the disorder.

4 0

3 years ago

Pain signals often have two components: an acute sensation of "first pain" which is felt almost immediately after an injury, and

o-na [289]

Answer:

This suggests that neurons that send the signals that we perceive as first pain Myelinated Tpye A-delta___, and neurons that send the signals that we perceive as second pain Unmyelinated-Type C.___.

Explanation:

Physiologically, primary afferent neurons that innervated the the touch, pain, temperature,and pressure receptors in the effectors to input sensory signals to the spinal cord and the brain are categorized based on their diameter, sizes, and nature of myelination. Based on this;

A-alpha has the largest diameter, myelinated, and sensitive to sensation from the muscle cells

A-beta are next in diameter, myelinated and sensitive to sensation of touch.

A-delta followed in diameter, and size. They are mylinated, and sensitive to pain and temperature.

C-fibres are least in diameter, they are unmyelinated, but sensitive to pain, touch and temperature.

Therefore, if the speed of conduction,of action potential in a neuron depends on the diameter(thickness) and myelination of the axon(saltatory conduction) :

''then, acute sensation/ first pain should be transmitted by the A-delta fibre. While the the slower/second pain should be transmitted by the slower unmyelinated - C-fibres''.

5 0

3 years ago

What is one of the negative consequences of burning waste

SVEN [57.7K]

air pollution is one

3 0

3 years ago

Read 2 more answers

why does a deletion mutation usually cause more defects during protein synthesis than a point mutation?

Illusion [34]

Answer:

Deletion mutations can affect the entire base sequence.

Explanation:

5 0

2 years ago

Read 2 more answers

g What are the three basic assumptions of Darwinian evolution? Group of answer choices Presence of phenotypic variation, some ph

enot [183]

Answer:

1- Presence of phenotypic variation

2- some phenotypic variation due to genetic variation

3- the given trait has an impact on fitness

Explanation:

The evolutionary theory by natural selection proposed by Darwin in his publication “On the origin of species” (1859) is based on a series of assumptions that enable to understand the amazing biodiversity on the Earth. First, individuals are not identical among them, i.e., there exists variation in the traits among the members of a given population, species, etc. Second, phenotypic variation leads to differential survival and reproduction of the organisms that are best fitted to the environment (i.e., competence among the members of the population). Finally, phenotypic traits are passed from generation to generation (i.e., phenotypic variation is inheritable), thereby favoring offspring from parents more adapted to the environment.

3 0

3 years ago