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trapecia [35]
3 years ago
11

Which organisms were not alive during a time when the earliest fishes evoled

Biology
1 answer:
sladkih [1.3K]3 years ago
6 0

The coelacanth is another lobe-finned fish that is a living fossil. It is thought to have evolved into roughly its current form about 408 million years ago, during the early Devonian, and has not essentially evolved further from its ancient form.

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The fruit of a certain plant is sweet and fleshy. The seeds of this plant have a seed coat that is
Ann [662]

Answer:

Animal

Explanation:

The fact that the seed is sweet and fleshy means it attracts animals who ingest it due to its palatability. The animals get to diperse the plant seeds. The acidic environment of the digestive tract of the animals helps soften the seed coat. When the seed is finally excreted by the animal, is can easily germinate.  

7 0
3 years ago
If the vibrations have a low frequency, the sound is heard as a _______. If the vibrations have a high frequency, then the sound
spin [16.1K]

D.

If the vibrations have a low frequency, the sound is heard as a __low-pitched sound_____. If the vibrations have a high frequency, then the sound is heard as a __high-pitched sound_____.

Explanation:

High pitched sound is of higher frequency because they make the air molecules vibrate much faster than low-pitched sound. Due to their high frequency, their wavelength is shorter (Remember wavelength and frequency are inversely proportional). Vice versa is true to the low-pitched sound. They vibrate air molecules slower than high-pitched sound. Their wavelength is longer and frequency smaller.

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brainly.com/question/61859

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3 0
4 years ago
Read 2 more answers
Where does the protien-building begin? A. enzyme B. cytoskeleton C. DNA D. cell membrane
galben [10]

Answer: Option C

Explanation:

Protein building begins on the DNA strand. Usually, the DNA contains genetic information which flows from nucleic acids to proteins in a series of steps:

1) Replication: this is the first step. It involves the copying of parental DNA into daughter copies.

2) Transcription: this is the second step. Here, parts of the coded genetic message in DNA are copied precisely in the form of RNA - in the form of messenger RNA (mRNA).

3) Translation: this is the third step. Here, genetic message coded in mRNA is translated, on the ribosomes, into a protein with a specific sequence of amino acids.

Simply put, DNA makes RNA, and RNA makes protein.

3 0
4 years ago
Need Help ASAP plz will give Brianliest. Digestive juices contain enzymes, water and some
Schach [20]

Answer:

Hydrochloric acid  Prepares protein for  digestion  (denaturation)  Activates enzymes  and  “Disinfection”

Pepsin (an enzyme)  Begins protein  digestion

Gastric lipase  Some lipid digestion

Gastrin (hormone)  Stimulates gastric  secretion and  movement

Intrinsic factor (a  glycoprotein)  Needed for  absorption of vitamin  B12

Explanation:

8 0
3 years ago
What do cells store and release as the main source of chemical energy
DIA [1.3K]
They store and use ATP (Adenosine Triphosphate).

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7 0
3 years ago
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