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3 years ago

Which of the following features differentiates a dicot stem from a monocot stem?

1 answer:

5 0

B- the presence of a distinct pith and cortex in a dicot stem and an undifferentiated ground tissue in monocot stem

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What is the difference between a mature and immature animal?

Schach [20]

Answer:

A mature animal will have been fully developed whereas an immature animal will not be fully developed. In a mature animal, all stages of development will have occurred whereas in an immature animal not all developmental stages would have occurred.

A mature animal will be better adapted to live in an environment as compared to an immature animal.

3 0

3 years ago

What the cell of the fish?

kari74 [83]

Fish have Eukaryotic cells

6 0

3 years ago

WILL GET BRAINLIEST!!!

ICE Princess25 [194]

Answer:

1. The characteristic thing about adult frog breathing is that drawing in air by lowering their mouth floor (option d).

2. The substance released by the lung secretory cells is the surfactant (option c).

3. The main divisions of the peripheral nervous system are the somatic and autonomic systems.

Explanation:

<h3>1. Breathing of the adult frog</h3>

The adult frog - while out of the water - uses a nasal breath, propelling air into its throat and oral cavity. The air content in the frog's mouth causes the internal pressure of the cavity to increase, and the floor of the mouth is modified to allow the passage of air to the lungs.

Under water, the frog's breath is cutaneous, that is, through its skin.

Adult frogs do not have gills or respiratory muscles.

<h3 /><h3>2. Pulmonary surfactant </h3>

Pulmonary surfactant is a substance produced and secreted by the pulmonary epithelium, specifically by type II pneumonocytes. The function of the surfactant is to keep the pulmonary alveoli open to allow gas exchange.

The surfactant is a substance of a lipidic and proteic nature that helps reduce the surface tension of the water, which in the socket prevents closure when the air is exhaled.

Another function is to prevent the germs - viruses and bacteria - present in the air from passing from the alveolus to the bloodstream.

<h3 /><h3>3. Divisions of the peripheral nervous system</h3>

The peripheral nervous system is dependent on the central nervous system and is made up of all the nerves that go to each of the tissues and organs of the body. It is divided into somatic and autonomic nervous systems.

Somatic nervous system is composed of nerves that drive nerve impulses to skeletal muscles, being predominantly voluntary. The involuntary response in this system is due to the existence of reflex arcs, whose center of integration is the spinal cord.
Autonomic nervous system is responsible for the innervation of coughs the internal organs, allowing their function under the coordination of the central nervous system. It is an involuntary system and is subdivided into sympathetic and parasympathetic systems.

The integration of both systems, somatic and autonomic, allows a body to perform all its functions, including the function of relationship, alertness and maintenance of organic homeostasis.

Learn more:

Frog breath brainly.com/question/1341903

Pulmonary surfactant brainly.com/question/7303958

Central and peripheral nervous systems brainly.com/question/2156614

5 0

3 years ago

In a flower, the female sex cells, or eggs, are produced by the __________. Pollen, which contains the male sex cells, or sperm,

aleksandrvk [35]

In a flower , the female sex cells, or eggs, are produced by the ovary . Pollen, which contains the male sex cells, is produced by the male cones or micro spores.

3 0

4 years ago

The high sea surface temperature in 1998 was most likely due to:.

kkurt [141]

Answer:

One change to Earth's surface can result in changes to other Earth systems.

All of the spheres on the Earth are interconnected, and they constantly interact with each other. When there's a change in one of the spheres then the other ones have changed as well. This is the case with the hydrosphere and the atmosphere. The atmosphere is becoming hotter in the past few decades, and this is contributing to the increased temperature of the hydrosphere (in this case, the sea surface). With the increasing temperatures of the sea surface, the cyclone activity becomes bigger and stronger, and this contributes to lots of natural disasters. So we can easily see the interaction and changes in this case between the spheres;

* atmosphere gets hotter - temperature of the sea surface rises - bigger cyclone activity.

6 0

3 years ago

Read 2 more answers