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serious [3.7K]
3 years ago
14

How do geological changes affect evolution?

Biology
1 answer:
IRINA_888 [86]3 years ago
5 0
Tectonic plate movements, volcanic eruptions, earthquakes, and climate change have shifted wildlife habitats, wiped out large numbers of species, and created opportunities for the evolution of new species. Hope this helped!
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To survive, all animals must _____. view available hint(s) to survive, all animals must _____. digest plant material have a comp
Inessa [10]
The correct answer is '<span> balance consumption of food with use and storage of nutrients </span>'. All animals can only survive if the amount of food consumed is equal to or greater than that required for growth and respiration. Most animals have adapted to be able to store excess food (such as fat) during times of plenty, to be able to survive when there is insufficient food available.
7 0
3 years ago
After electrons leave photosystem ii, they go into an electron transport chain of three protein complexes. where do they go afte
Ira Lisetskai [31]

The right answer is photosystem I

And the three protein complexes are : plastoquinone, cytochrome b6f complex, plastocyanin.


In plants, photophosphorylation occurs in the membrane of thylakoids, within chloroplasts:

H2O ==> photosystem II (which contains P680) ==> plastoquinone ==> cytochrome b6f complex ==> plastocyanin → photosystem I (which contains P700) ==> ferredoxin ==> ferredoxin-NADP + reductase ==> NADP +

4 0
3 years ago
if a messenger RNA sequence is GUAAUCGCCAAU what is the amino acid sequence that this strand would create?
tresset_1 [31]

Answer:

Explanation:

The answer is in the codon. We interpret mRNA in a series of three nucleotides at a time called amore

6 0
2 years ago
What are the function of Golgi body​
ludmilkaskok [199]

Answer:

the golgi body packages proteins and other vesicles and send them around the cell

4 0
3 years ago
Read 2 more answers
1) How is DNA condensed to form a chromosome?
Bumek [7]

Answer:

1) DNA is wrapped around histone proteins to form chromatin

2) The genes are the functional units, the segments between them are used for regulation

3) The genetic code is the language used, gene expression is how the cell uses the information, the activity of the genes.

Explanation:

1) DNA forms a DNA/protein complex called chromatin. It does this by wrapping around histone proteins. These histone proteins are usually present in the form of a nucleosome, which is a unit containing 2 copies of 4 histones (H2A, H2B, H3 and H4). The chromatin fibre at its most compact forms tightly coiled structures called chromosomes. These structures are only present during cell division. When the cell is in interphase (i.e. not dividing), the chromatin is not as tightly condensed, and instead the chromatin is more relaxed to allow the genes within to be expressed.

2) Genes are the functional units that the cell uses to make RNA and protein. The genes are first transcribed into RNA, which is processed and then translated into a polypeptide chain, which forms a complete protein that performs activities in the cell/tissue/organism. However, the whole genome does not form genes, there are regions that do not correspond to a gene. These regions are called "non-coding DNA" or sometimes even "junk DNA". However, that does not mean that these regions do not have important roles. The role of this DNA is usually in regulating the activity of the nearby genes. This DNA might contain important regulatory sequences such as promoters/enhancers/silencers that control how the gene is used by the cell, by for example, recruiting transcription factors or silencing proteins.

3) The genetic code is the language used by the cell. It explains how the cell can transcribe the information in the DNA, to RNA, process the RNA, and then translate the RNA into a polypeptide, and eventually a mature protein. In contrast, gene expression represents how the cell actually uses this information. Not all the genes are transcribed at the same time, instead, the activity of genes is carefully controlled to produce appropriate gene expression patterns, allowing the cell to properly perform its functions. Gene expression is hugely different between cells in an organism, for example the gene expression patterns of a muscle cell will  be hugely different to that of a blood cell.

5 0
3 years ago
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