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mixer [17]
3 years ago
15

How many electrons does carbon have available for chemical bonding? one two four

Biology
2 answers:
blsea [12.9K]3 years ago
5 0
4 because it is in 4A family
marishachu [46]3 years ago
4 0
I'm pretty sure it's 4, as the electron system for bonding goes-2,8,8 in terms of held bondables. I was never good at Chemistry, but I'm fairly certain about this.
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Which of the following statements best explains the fact that there was no discernable difference between the groups on day 1?
Hunter-Best [27]

Answer: The answer is option C

Explanation:

Option c- Beta carotene had not yet been absorbed by the body in sufficient quantities to influence the amount of vitamin A being produced. Beta carotene is an organic, red-colored pigment that is found to be abundant in plants and fruits. it is a member of the Carotenes. Beta carotene is an inactive form (precursor) to vitamin A.

5 0
3 years ago
Which statement is true for all sexually reproducing plants and animals? a) The process of mitosis always produces diploid cells
vazorg [7]

Answer:

d) The process of meiosis produces haploid cells

Explanation:

<em>Meiosis is a form of cell division that involves sex cells. A single diploid sex cell divides twice (meiosis I and meiosis II) to produce four haploid daughter cells. Meiosis is sometimes referred to as reductional cell division because involves halving of the chromosome number of the parent cell.</em>

When meiosis takes place in animals, the haploid cells produced can be directly referred to as gametes. However, in plants, haploid cells give rise to haploid gametophytic generations or simply gametophytes. The gametophytes eventually gives rise to gametes.

Hence, the most correct option is d.

6 0
3 years ago
I am having a hard time answering these questions. Please help.
Reptile [31]

Answer:

1) Altering the DNA of organisms is considered controversial because we do not know what circumstances might occur if the DNA which is being altered turns out to have adverse effect on the organism. There are also concerns that altering the genome and producing organisms with better traits might eradicate the particular wild type organisms on the whole.

2)Yes, there should definitely be a guideline as to who can you the recombinant DNA technology and up to what limits. If guidelines are not set up then it can lead to serious devastating results. We might end up making manipulations which can be very harmful for life. Hence, recombinant DNA technology should be used with much care and under strict guidelines.

3) The techniques in recombinant DNA technology has enable us to make precise changes in the DNA at a higher frequency but certain guidelines shall be set up to control the devastating results which might occur. The concern related to life shall be the first and foremost concern while practicing such techniques.

5 0
3 years ago
Division of replicated chromosomes occurs during:
OlgaM077 [116]

This happens in meiosis l. :)

3 0
3 years ago
What feature distinguishes adipose tissue from other connective tissues?
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<span>The extracellular material of connective tissue, which plays a major role in the ... feature that distinguishes connective tissue from the other tissues of the body.</span>
6 0
4 years ago
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