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Olenka [21]
4 years ago
12

Define ecology and identify the two features of organisms that ecologists try to explain. Discuss examples of experiments that e

xamine these features.
Biology
1 answer:
sleet_krkn [62]4 years ago
4 0

Answer:

Ecology is defined as the scientific study of the complex interactions between organisms, and the environment of the earth. Ecologists study, and examine the features of biotic and abiotic factors of the environment.

Abiotic factors include non-living factors, the physical, and chemical attributes, for example light, water, temperature, and nutrients which helps to influence the abundance, and distribution of organisms.

Biotic factors include living factors, the other organisms which are part of a separate environment, similarly influence the abundance and distribution of life present on Earth.

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Exocytosis is the process by which vesicles in the cytoplasm fuse with the cell membrane, releasing their contents into the cell
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2. Where does meiosis occur in females? When?
Greeley [361]

Answer:

In human males, meiosis occurs in the seminiferous tubules of the testicles while in females, it occurs in cells called as oogonia. In males, meiosis occurs at puberty while in females it occurs right at birth.

Explanation:

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3 years ago
Comparing DNA Replication and Transcription
ozzi

The missing information has been completed as:

DNA Tempelate        complementary DNA    mRNA

3' TTACG 5'                5' AATGC 3'                 5'UUACG 3'

       

3' AAUGC 5'                  5' TTACG 3'            5'UUACG 3'

3' GGCGG 5'                  5' CCGCC3'          5' CCGCC3'

' 3'TGCATCG5'               5' ACGTAGC 3'     5' ACGUAGC 3'

3' AGACTC 5'                 5' TCTGAG  3'       5' AGACTC 3'

3'GATAAGA 5'               5' CTATTCT 5'         5' CTAUUCA 3'

3' CTGGCTAC5'           5' GACCGATG 3'    3'CUGGCUAC 5'

Explanation:

Some of the sequence of DNA given is in 3' to 5' direction, mRNA sequence is also given.

The DNA is double stranded helix which replicates by semi conservative mode. The two strands unwind to act as a template for other strands. In transcription the 3' to 5' strand acts as a template because RNA synthesis takes place in 5' to 3' direction. mRNA is single strand. It has nucleotides in it from which 3 base pairs acts as a code for amino acid.

The following table shows DNA strand having complementary sequaence and mRNA synthesized.

 DNA Tempelate        complementary DNA    mRNA

3' TTACG 5'                5' AATGC 3'                 5'UUACG 3'

       

3' AAUGC 5'                  5' TTACG 3'            5'UUACG 3'

3' GGCGG 5'                  5' CCGCC3'          5' CCGCC3'

' 3'TGCATCG5'               5' ACGTAGC 3'     5' ACGUAGC 3'

3' AGACTC 5'                 5' TCTGAG  3'       5' AGACTC 3'

3'GATAAGA 5'               5' CTATTCT 5'         5' CTAUUCA 3'

3' CTGGCTAC5'           5' GACCGATG 3'    3'CUGGCUAC 5'

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3 years ago
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3 years ago
True or false? the term "sticky ends" refers to the overhanging ends on dna that are generated by restriction enzymes, which can
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<u><em>My answer is that this statement is false.</em></u>
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3 years ago
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