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3 years ago

What is a digestive system

Biology

2 answers:

Wittaler [7]3 years ago

5 0

The digestive system is the group of organ that convert food to energy.

Inga [223]3 years ago

4 0

A digestive system is a part of the body that processes food into energy

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Why do organisms die if they don’t have enough water

Alla [95]

The transfers of most cells require water and if the body dosent have enough it will shut down

7 0

3 years ago

Treatment of dividing cells with a low dose of the antifungal drug benomyl, which destabilizes microtubules, slows down correct

lilavasa [31]

Answer:

The answer is letter A.

Explanation:

A loss-of-function mutant in the gene encoding Mad2.

3 0

3 years ago

Northern flickers are woodpeckers of the eastern United States. Males, but not females, have black feathers that resemble a mous

jek_recluse [69]

Answer:

This suggests that the moustache is a releaser for aggression.

Explanation:

Fixed action patterns are instinctive programmed responses in different species that are triggered by a specific external sensory stimulus. These stimuli are called sign stimuli or releaser. When the sign occurs, the animal starts a sequence of acts in response to the stimulus and continuous until the series of actions is completed.

The black feathers resembling a mustache in a Northern flickers male are an external sensory stimulus. This trait that can provoke another male to respond aggressively, as a fixed action pattern.

This trait might be considered as an unconditioned stimulus, which provokes an unlearned or reflex reaction. These aggressive responses are triggered by reflex.

7 0

3 years ago

Rabbits, turtles, fish, humans, and whales all share certain characteristics but also differ from each other. All of these speci

Delvig [45]

The levels of organisation are

Domain: Eukarya

Kingdom Animalia

Phylum :Chordata

Explanation:

They all share these levels of organisation because;

for the Domain Eukarya, they have;

→multi-cellular cells containing nucleus; and other membrane bound organelle.e.g Mitochondrial.

→their DNA located in the nucleus packaged as linear chromosomes bounded by histone proteins.

→mode of reproduction which is sexual.

They share Kingdom Animalia because;

→they have multi-cellular, specialised cells, bounded by plasma membranes.

→they have specialized tissues, organs, and system.

→they all undergo heterotrophic mode of nutrition as evident in the question 'that they must consume plants and animals as source of energy'

→they exchanged communication by nervous ssytem and 

→ use homeostatic mechanisms to regulate water balance of the body through the kidney.

→Humans,Rabbits,and whales are VIVIPAROUS; they give birth to young ones alive.

→Most fishes lay eggs to reproduce, they are said to be Ovoviviparous.

They belong to phylum Chordata because ;

→they all have noto chord; which serve as template for axial skeleton.

dorsal hollow nerve cord -template for the brain and spinal cord

→pharyngeal slits- templates for gill aches in bony fishes and components of inner ear in land animals.

→ tail length varies in these organisms.

8 0

3 years ago

Which process is most likely to result in a gene providing antibiotic resistance to be found in a viral genome

Lina20 [59]

Answer:

There are two important types of genetic mechanisms that can give rise to antibiotic resistance: mutation and acquisition of new genetic material. In the case of mutation, the rate at which resistance develops can be attributed to the rate at which bacteria mutate.

3 0

2 years ago