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1 year ago

Which of the following provided structural evidence for the concept of a common ancestor

1 answer:

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Physical characteristic was present in a common ancestor, species may have similar physical characteristics (homologous structures).

<h3>What are homologous structures?</h3>

A physical trait that distinguishes two or more species, such as a complicated bone structure or a body plan, may have been passed down from a common ancestor.

A common ancestor's evolutionary history causes physical characteristics to be homologous.

Sometimes, structures in an organism are similar to crucial structures in other animals, but they no longer serve the primary ancestral role. Vestigial structures are these structures, which are frequently scaled down.

Therefore, Physical characteristic was present in a common ancestor, species may have similar physical characteristics (homologous structures).

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Science/Grade 7 - Bell - 6 / Bel

labwork [276]

The observation of the relationships between the anemone and clownfish supports the statement 'symbiotic relationships are important to an ecosystem' it is a fundamental ecological interaction.

<h3>What is symbiosis?</h3>

Symbiosis is a type of ecological interaction where both organisms are benefited from such interaction.

Symbiosis is a fundamental biological interaction that supports the delicate equilibrium (homeostasis) of both marine and terrestrial environments.

The relationships between the anemone and clownfish represent a piece of clear evidence that symbiosis not only helps these species but also the entire ecosystem.

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2 years ago

When an earthquake occurs energy radiates in all directions from its source which is called the what

frez [133]

When an earthquake occurs energy radiates in all directions from its source which is called the what

A.) Epicenter this is where the earthquake starts

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3 years ago

Read 2 more answers

State the structure by which the embryo develops and grows.

netineya [11]

Answer:

the structure by which the embryo is called the oblica cord

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3 years ago

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when a prairie dog spots a predator, it responds by giving an alarm call, but only when close relatives are near. this is an exa

inn [45]

when a prairie dog spots a predator, it responds by giving an alarm call, but only when close relatives are near. this is an example of vocalization.

<h3>What do you mean by predator ?</h3>

The interaction between prey and a predator, where the energy flow occur called as predation and the organism feed on other organism called as predator and the food means the other organism is called as prey.

Predators can be carnivores and omnivores like Lions, tigers, sharks, and snakes, all are predators, it can fall prey to other large animals E.g. a snake is a predator to a mouse, but prey to a hawk.

Carnivorous predators directly kill and eat their prey like large animals such as the lion and tiger, they have their own mode of feeding.

Herbivore are plant eating animals like cows, buffaloes, goats, sheep, and deer; parasites are also under the category of predators which is a host dependent and live, get nutrients from host's body for survival and reproduction.

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1 year ago

Consider the events that describe the progress of a protein that will be secreted from the cell. 1. SRP binds to the growing pol

Sphinxa [80]

Answer: the answer is option A. 5 → 1 → 6 → 3 → 2 → 4

Explanation: the events that describe progress of a protein that will be secreted from cell are as follows; Protein synthesis begins in the cytosol, SRP binds to the growing polypeptide chain and to the ribosome, Translation pauses, SRP binds to its receptor, Translation resumes and finally - The signal sequence is cleaved. All these formed the sequence 5 → 1 → 6 → 3 → 2 → 4

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4 years ago