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NikAS [45]
3 years ago
10

How do we determine a middle atom without looking at electronegativity?

Biology
1 answer:
IgorLugansk [536]3 years ago
4 0

Answer:

An atom's electronegativity gets higher as you move up in the periodic table. Thus, the atoms in the top right have the highest electronegativities and the atoms in the bottom left have the lowest ones.

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Which of the following populations would be considered r-selected? Black Widow Spiders - they produce 1000s of offspring and few
belka [17]

Answer:

Option 1.

Explanation:

r-selected species may be defined as the species that has higher growth rate, shows less parental care and the rate of survival of the off spring is low as compared  with k selected species.

Black widow spiders have the ability to produce 1000 offspring. Their chances of survival are extremely low and only few species of black widow spiders survive. Hence, black widow spider is r-selected species.

Thus, the correct answer is option (1).

7 0
3 years ago
Suppose that, among related host species that carry related symbionts, the relationship is mutualistic in some pairs and parasit
romanna [79]

Answer & Explanation:

a) a) Mutualistic relationship differs from parasitism because the first one benefits both of the involved organisms. Otherwise, parasitism benefits only one of the organisms and it can harm the host. Therefore, the parasite would have to be smaller than the host and it would be somehow extracting energy from the host.

b) The direction of evolutionary changes would follow some kind of pattern, like coevolution. Therefore, analyzing the phylogenies individually and then contrasting them, would help to understand how the host, as well as the parasite, have been evolving.

c) The phylogeny would also help to understand what changed first, or if they changed together as a result of coevolution.

5 0
3 years ago
Parts and function of microscope levels of organization comment/remark
katen-ka-za [31]
ok so no problem i’ll is going on the same page as ttyy and
7 0
2 years ago
Hypotheses are used in science but never in the design of new technology.<br><br> True False
timofeeve [1]
True if u know that humans are
4 0
3 years ago
2. If 10% of the bases in a molecule of DNA are adenine, what is the ratio of adenine to guanine in the same
sertanlavr [38]

Answer: Option D) 1:4

Explanation:

Recall that the sum of all nitrogenous bases in the DNA nucleotide is equal to 100%. And specific base pairings of Adenine to Thymine (A=T), and Cytosine to Guanine (C=G) must be equal.

So, the percentage of Adenine equal thymine, and that of cytosine equals guanine.

Now, A + T + C + G = 100%

So, if adenine makes up 10% of the DNA nucleotides, then thymine is also 10%.

Then, 10% + 10% + C + G = 100%

20% + C + G = 100%

C + G = 100% - 20% = 80%

Thus, divide 80% by 2 to obtain the individual percentage of cytosine and guanine. Each will take 40%

Ratio Adenine to Guanine is 10% to 40%

or 1:4 in simplest form

7 0
3 years ago
Read 2 more answers
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