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3 years ago

What is the habitat of the starfish and what does it eat

1 answer:

7 0

Starfish, or more accurately sea stars, fill a niche as predator and prey in marine ecosystems close to shore. With more than 18,000 species in the world, they range from the tropics to the Pacific Northwest and further north. They can grow larger than a foot across and can have as many as 40 arms. While sea stars are known for their ability to regrow lost arms, they have an unusual digestive system, too.

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Which of the following choices correctly describes the composition of the cell membrane

lukranit [14]

I would say the second one

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3 years ago

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Is the sugar maple tree a monocot or dicot?

zhuklara [117]

Answer:

Its a dicot.

Explanation:

You know because when a seed sprouts it has two cotyledons.

The branching leaf veins and flower structure also tell you this.

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3 years ago

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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

pushing your body to its limits to encourage your body to make physiological changes describes which principle?

zavuch27 [327]

The overload principle

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2 years ago

Which kingdom includes multicellular, heterotrophic organisms that absorb nutrients from other dead organisms?

NemiM [27]

Answer: Fungi

Explanation:

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3 years ago