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GarryVolchara [31]
3 years ago
8

What is a characteristic of all chordates at some point during their life cycle?

Biology
1 answer:
Mila [183]3 years ago
3 0

Answer:they possess notochord,dorsal tubular nerve cord , pharyngeal pouches

Explanation:chordates are animals which possess the notochord.examples are humans,birds,fishes etc

At a time in the life cycle,a chordates possesses a stiff,dorsal rod which is supporting in nature (the notochord).

They also possesses a tail that extends from behind the anus.

They possess a hollow nerve cord.

They possess gills slit.

These characteristics are present developing embryo and may disappear as the embryo matures.

In humans,the notochord is replaced by the spinal column of the vertebrate.

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3 years ago
The small size of cells
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Answer:

A

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Identify the MOST specific taxonomic level.
UNO [17]

Answer:

Species

Explanation:

Species is the most specific and basic taxonomic level of classification and also the basic unit of biodiversity. Species is defined as group of highly closely related organisms that mate or breed to produce fertile offspring. After species genus is specific, and mostly organisms names are identified by species names and genus names as in binomial nomenclature, all scientific names are derived from genus and species e.g. the scientific name of frog is <em>Rana tigrina, </em>here '<em>Rana</em>' is genus name that is always capitalized and '<em>tigrena</em>' is species name that starts with small letter but both are always written in italics or underlined.

7 0
3 years ago
I'LL GIVE BRAINLIEST!!!!! PLEASE HELP!!!!!
Rufina [12.5K]

Answer:

results will be more accurate if there is a larger sample size.  

No matter what research is, the larger sample size is, the more accurately will be the results and vice versa. The larger samples increase a chance of significance because they reflect the population mean more reliably.

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3 years ago
The ability of body systems to increase their function, given the need to adapt, is known as the The ability of body systems to
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Answer:

The ability of body systems to increase their function, given the need to adapt, is known as the <u>physiologic reserve.</u>

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