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liq [111]
3 years ago
5

Organisms that have very different taxonomies (e.g. are from different families) but look very similar represent an example of

Biology
1 answer:
bija089 [108]3 years ago
8 0
It’s making sure it really do able so it can counts to others to make it
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Select all that apply. Which of the following are current human uses for chordates? food research therapy entertainment affectio
topjm [15]
Chordates are animals that possess certain characteristics including a notochord. Humans fall into this category along with many vertebrates such as whales, falcons etc; therefore, all of the answers apply.
Food, research, therapy, entertainment affection.
8 0
3 years ago
Identify what Jean-Baptiste Lamarck believed about traits such as large muscles that are acquired during one's lifetime.
denis23 [38]
<span>What did Jean-Baptiste Lamarck believe about traits such as large muscles that are acquired during one's lifetime?

</span><span>They can be passed on to offspring.
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<span>Jean-Baptiste Lamarck proposed that organisms have an innate tendency toward complexity and perfection.</span>
4 0
3 years ago
Somebody explain this in short?
Olenka [21]

significant digits are certain digits that give detail in a number

ex. in the number 400 it is the 4 because it tells you how many hundreds are in the number, in the number 49.92 it would be all of them because they all help understand the number

Do you get it?


5 0
3 years ago
What is the difference between metaphase in mitosis and metaphase II in meiosis? How are they the same?
lora16 [44]

Answer:

What is the difference between Metaphase 1 and Metaphase 2? In Metaphase I, the 'pairs of chromosomes' are arranged on the Metaphase plate while, in the Metaphase II, the 'chromosomes' are arranged on the metaphase plate. In Metaphase I, the spindle fibers get attached to two centromeres of each homologous chromosome.

In metaphase 1 the pairs of chromosomes referred to as bivalents are totally condensed. Moreover the in metaphase 1 of meiosis there is no centromere division whereas in metaphase of mitosis it does. They align on the metaphase plate in between the poles.

Explanation:

4 0
3 years ago
1. Suppose the synthesis of an amino acid was accomplished by four enzymes encoded by four genes that formed an operon. Draw a m
vivado [14]

I have attached lac operon model having 4 genes. See attachment for better understanding.

Answer:

The Lac operon is controlled  by two signals.

Initiation

Glucose and lactose  concentrations control the initiation of  transcription of the Lac operon through  their effects on the Lac repressor protein  and Cap.

Lactose absent (Repression)

When lactose is absent, the Lac  repressor binds the Lac operator and shuts  off expression of the operon.

Lactose present (Transcription)

Addition  of lactose increases the intracellular  concentration of a related compound,  allolactose. allolactose binds to the  Lac repressor, causing it to undergo a  conformational change that releases its grip  on the operator DNa.

Glucose absent (Repression)

When  glucose is absent, cyclic aMp (red triangle)  is produced by the cell and Cap binds to  DNA.

Glucose present (Transcription)

LacZ, the first gene of the operon,  encodes the enzyme b-galactosidase, which  breaks down lactose to galactose and  glucose.

7 0
3 years ago
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