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ivolga24 [154]
3 years ago
6

An element's atomic number is the

Biology
2 answers:
il63 [147K]3 years ago
7 0
Any element's atomic number represents the number of protons it contains (D). The mass, weight, and sum of protons and neutrons can change for various isotopes a single element, but any isotope of a single element has the same number of protons.

I hope this helps.
Tju [1.3M]3 years ago
3 0
D. Number of protons in an atom's nucleus
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Dimples (D) and brown hair (A) are dominant traits. Answer the following questions based on the dihybrid cross shown:
ira [324]
1. DDAA, DdAa
2. DDaa, Dada
3. ddAA, ddAa
4. ddaa
5. The phenotypic ratio is 9:3:3:1 where 9 combinations will produce offspring with both dominant phenotypes (dimples and brown hair), 3 will produce offspring with one dominant phenotype and one receive phenotype (dimples, blonde hair), 3 will produce offspring with one receive phenotype and one dominant phenotype (no dimples, brown hair), and one will produce offspring with both recessive phenotypes (no dimples, blonde hair)
5 0
3 years ago
At what point during meiosis do homologous chromosomes pair up?
Readme [11.4K]

Answer:

Prophase 1

Explanation:

In prophase 1, homologous chromosomes pair up and exchange sections of DNA in a process called crossing over.

8 0
2 years ago
Read 2 more answers
According to the principle of stratigraphy which layer in a rock formation would you expect to be the oldest
Olegator [25]
The answer would be the Base layer
6 0
3 years ago
The half — life of nickel is 96 years. How much of a 30-gram sample is left after 270 years?
-Dominant- [34]

The amount of the 30 gram-sample that will remain after 270 years is 6.61 grams

<h3>How to determine the number of half-lives </h3>

We'll begin by obtaining the number of half lives that has elapsed. This can be obtained as follow:

  • Half-life (t½) = 96 years
  • Time (t) = 270 years
  • Number of half-lives (n) =?

n = t / t½

n = 270 / 99

n = 2.8125

<h3>How to determine the amount remaining </h3>
  • Original amount (N₀) = 30 grams
  • Number of half-lives (n) = 2.8125
  • Amount remaining (N) =?

The amount remaing can be obtained as follow:

N = N₀ / 2^n

N = 30 / 2^2.8125

N = 6.61 grams

Learn more about half life:

brainly.com/question/26374513

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5 0
1 year ago
The body felt cool to the touch. The thermometer gave a reading of 70˚F. No rigor mortis was evident, but permanent livor mortis
BigorU [14]

Answer:

Basically enzyme activities are affected by drop in temperature. in additions the corpse was cool to touch.Therefore this  explains while there was no bloating or bacteria activity since the decomposing  bacteria  enzymes  were inactive because of the cold temperature.

Consequently, if the Livor mortis (lividity) is +8hrs 0-4days, evidently  the corpse must have been refrigerated after livor mortis sets in, with the decomposition slowed down by the cold environment.

Notes: Algor mortis is 26.8hrs, and there was no algor mortis.

Explanation:

3 0
3 years ago
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