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insens350 [35]
3 years ago
7

A class is using marshmallows to demonstrate different chemicals' properties by heating and cooling the

Biology
2 answers:
Afina-wow [57]3 years ago
8 0

Answer: Kenneth is using the Bunsen burner to roast the marshmallows and eat them.

Explanation: you should not be eating in a lb environment without direct permission from your teacher or supervisor.

drek231 [11]3 years ago
7 0

Answer:

Kenneth is using the Bunsen burner to roast the marshmallows and eat them.

Explanation:

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6. species Closely related of orchids never mate in the wild because they bloom at different times. This is an example of ______
Dimas [21]

Answer:

temporal reproductive isolation

Explanation:

The correct answer would be temporal reproductive isolation.

<u>Reproductive isolation</u> generally refers to series of biological mechanisms or processes that prevent members of different species from mating/fertilization or prevent the product of their mating to be invalid.

Some reproductive isolation processes prevent members of different species from mating or prevent fertilization as a result of mating. These processes are known as pre-zygotic reproductive isolation mechanisms.

Some other processes ensure that the product of fertilization (when it occurs) is invalid. These are known as post-zygotic isolation mechanisms.

<em>A good example of the pre-zygotic reproductive isolation process is </em><em>when closely related by different species bloom at different times</em><em>. This will prevent mating or cross-pollination to happen between the different species. This is known as temporal reproductive isolation.</em>

5 0
2 years ago
To maintain homeostasis, freshwater fish must ________. excrete large quantities of water take in electrolytes through simple di
11Alexandr11 [23.1K]
<span>Choice (a) is the most correct. Fish must excrete large quantities of water as a way of keeping the homeostasis in their cells. Otherwise, the water levels in the cell could become too high and the cells would likely rupture, leading to the death of the organism.</span>
8 0
2 years ago
Producing oxygen, taking in carbon dioxide, and providing food, habitats, and lumber are just a few of the things that ______ do
Charra [1.4K]

Answer: plants do to benefit

8 0
1 year ago
Step 1: drag the lac promoter to the stretch of dna. do not drag the lacz gene to the dna. what happens? why is this?
Marat540 [252]

RNA polymerase binds to the lac promoter and begins transcribing the stretch of DNA to messenger RNA. Therefore, in other words, the stretch of DNA is expressed. The DNA sequence of the lac promoter 'signals' where the RNA polymerase will bind and where transcription will begin. Promoters are found upstream of a gene to be transcribed.


4 0
2 years ago
What would most likely happen to life on Earth if the carbon cycle stopped?
xxMikexx [17]
Poof just like that
everyone
gone
forever
lol
but in all seriousness, human life would cease to exist. 
5 0
2 years ago
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