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PtichkaEL [24]
3 years ago
10

READING CHECK - Determine Central Ideas: How are internal and external fertilization alike and different?

Biology
2 answers:
Andrews [41]3 years ago
5 0
They are the same because they are both fertilised, but different because ones fertilised inside and the other artificially outside
marshall27 [118]3 years ago
4 0

Answer:

They are the same because they are both fertilised

Explanation:

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It’s for earth science homework!!
aniked [119]

Answer: Number 4 goes to - rise of one part of Earth's crust above another

Number 3 goes to - sinking of one tectonic plate beneath another

Number 1 goes to - pressure an chemical processes that transform sediment into rock

Number 2 goes to - small pieces of broken down,weathered rock

Explanation:

Hope it helps

4 0
3 years ago
Order the steps from arrival of transcription-promoting factors at the eukaryotic DNA gene promoter to synthesis of an mRNA copy
asambeis [7]

Answer:

Explanation:

There are 3 different types of DNA dependent RNA polymerase. RNAP II is the main enzyme synthesizing mRNAs.

1. Signals for initiation of transcription

Promoters: there are certain specific areas on the DNA that act as starting signals for initiation process.

The DNA polymerase attaches to the promoter site on the template DNA strand.

TATA Box: upstream of the transcription start site is 5'-TATAAA-3' it is referred to as the TATA Box. It acts as a signal for the start region.

2. Initiation of Transcription. The DNA helix unwind, and the RNAP binds to the promoter site on the 5' end DNA with the help of sigma factor. RNAP reaches the appropriate site of the gene and add the first nucleotide of the mRNA.

3. Elongation of Transcription: the RNAP moves along the DNA template, new nucleotides are incorporated in the nascent mRNA, one by one, according to the base pairing rule.

4. Termination of transcription: specific signals are recognized by the termination protein (Rho factor). When it attaches to the DNA, rnap can't move further. So the enzyme dissociate from DNA and consequently newly formed RNA is released.

4 0
4 years ago
Can some please help me
Anuta_ua [19.1K]

Answer:oh its B for sure!

Explanation:

6 0
3 years ago
in plants that have alternation of generations the haploid spores are made by the A. cotyledon. B. seed coat. C. sporophyte. D.
konstantin123 [22]
D. Gametophyte is the correct answer.
8 0
4 years ago
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Since all ruby-throated hummingbirds migrate at around the same time each year, many populations that were possibly isolated dur
rodikova [14]

Answer:

Gene flow

Explanation:

5 0
4 years ago
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