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bija089 [108]
2 years ago
7

Which of the following terms best relates to the mechanisn that flatworms use to obtain oxygen pharynx diffusion spiracles excre

tion
Biology
2 answers:
ziro4ka [17]2 years ago
7 0

Answer:

diffusion

Explanation:

A flatworm obtains oxygen needed for cellular respiration through simple diffusion

bagirrra123 [75]2 years ago
6 0

Flatworms absorb oxygen by diffusion mechanism through their skin to the cells in their bodies. Since flatworms do not have a circulatory system, their bodies' cells are positioned close to the skin to ease the uptake of oxygen from surrounding fluids or water.






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People often say that dogs are "man's best friend.How closely related are dogs and humans? To complete this activity, you will n
Svetllana [295]

Answer:

See explanation

Explanation:

Taxonomy actually means “arrangement law”. It is the branch of biology that deals with the classification of organisms.

The taxonomic classification system was invented by Carl Linnaeus. It is a hierarchical model of classifying living organisms based on shared characteristics.

Dogs are referred to as 'man's best friend' partly owing to some level of taxonomic relationship between the two species. Dogs and man belong to a class of vertebrates known as mammals- one of the shared characteristics of mammals is that they give birth to their young ones alive.

The taxonomic classification of man is:

Domain: Eukaryote - Kingdom - Animalia Phylum - Chordata Subphylum - Vertebrata Class - Mammalia Order - Primates Family - Hominidae Genus - Homo Species - sapiens.

The taxonomic classification of dog is:

Domain: Eukaryote - Kingdom - Animalia Phylum - Chordata Subphylum - Vertebrata Class - Mammalia Order - Carnivora Family - Canidae Genus - Canis Species - lupus familiaris

8 0
3 years ago
It is a winter day in Florida, and the temperature is 40°F in the morning. While you are walking to class, your body uses a nega
zhannawk [14.2K]

Answer:

negative feedback

Explanation:

The negative feedback system is the most common in the body, being considered by many authors the primary mechanism for the maintenance of homeostasis. It causes a negative change from the initial change, that is, a stimulus contrary to the one that led to the imbalance. In the case of the above question, when the ambient temperature increased, your body began to sweat to lower the temperature, that is, your body is trying to make a stimulus contrary to what is happening in the environment, so we can state that your body is going through a negative feedback system.

5 0
3 years ago
How would you differentiate between the coordination system of plants and animals?
Novay_Z [31]

Answer:

In the animals control and co-ordination is done by the  nervous system and endocrine system whereas in animals nervous system is adequately developed and consists of brain, spinal cord and nerves; in animals hormones are secreted by endocrine glands.

Explanation:

3 0
3 years ago
A plant produces tiny plants around the edges of its leaves. When these tiny plants fall to the ground, they take root and becom
Aleks04 [339]

Answer:

asexual reproduction - because the plant is producing little copies of itself.

Explanation:

In asexual reproduction, one or more new freely existing organisms arise from a single parent without fertilization. All the descendants of an asexually reproducing individual are the same genetically and are referred to as a clone.

8 0
3 years ago
How are signals sent from one neuron to another by jumping across a tiny space or?
Irina-Kira [14]
<span>Transmitted via neurotransmitters. There is a gap between two neurons. This place where the axon meets with dendrite is callde synapse. Neurotransmitters which are chemicals help transmit the signals from axon to dentrite. Calcium ions play major role in this process.</span>
5 0
2 years ago
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