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valentinak56 [21]
2 years ago
12

The following diagram shows where, in layers of rock, fossils of certain organisms are found.

Biology
1 answer:
DIA [1.3K]2 years ago
5 0
Need a picture of the diagram pls
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Genetics experiments on the breeding of plants or animals are based on the laws of _____. segregation isolation genetics probabi
grigory [225]

Hello.

The answer is Probability

Genetics experiments on the breeding of plants or animals are based on the laws of probability. They are based on the laws of segregation. Probability will determine what you are likely to get though.

Have a nice day


3 0
2 years ago
5 facts about Anaphase Mitosis ?
Klio2033 [76]
The sister chromatids are then pulled apart by the mitotic spindle which pulls one chromatid to one pole and the other chromatid to the opposite pole.

The chromosomes line up neatly end-to-end along the centre (equator) of the cell.
The centrioles are now at opposite poles of the cell with the mitotic spindle fibres extending from them.
The mitotic spindle fibres attach to each of the sister chromatids.

The DNA in the cell is copied in preparation for cell division, this results in two identical full sets of chromosomes?.
Outside of the nucleus? are two centrosomes, each containing a pair of centrioles, these structures are critical for the process of cell division.
6 0
2 years ago
Read 2 more answers
Which is part of the theory of evolution by natural selection all animals in a <br>population​
Anika [276]

Answer:

What are the 4 stages of natural selection?

The Process of Natural Selection

Variation. Organisms (within populations) exhibit individual variation in appearance and behavior. ...

Inheritance. Some traits are consistently passed on from parent to offspring. ...

High rate of population growth. ...

Differential survival and reproduction.

Explanation:

4 0
2 years ago
Postive and negative of entertainmeant
maksim [4K]

Answer:

Positive - give pleasure to the watcher

Negative - uses time the watcher could've spent doing something else, the watcher can never get that time back again.

Explanation:

Positive - give pleasure to the watcher

Negative - uses time the watcher could've spent doing something else, the watcher can never get that time back again.

6 0
3 years ago
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While alive, an organism absorbs (radioactive) carbon 14 at such a rate that the proportion of carbon 14 in the organism remains
Inga [223]

Answer:

The person has been dead for approximately 15,300 years

Explanation:

<u>Available data</u>:

  • The half-life of carbon 14 is 5,600 years
  • The human skeleton level of carbon 14 is 15% that of a living human

To answer this question we can make use of the following equation

Ln (C14T₁/C14 T₀) = - λ T₁

Where,

  • C14 T₀ ⇒ Amount of carbon in a living body at time 0 = 100%
  • C14T₁ ⇒ Amount of carbon in the dead body at time 1 = 15%
  • λ ⇒ radioactive decay constant = (Ln2)/T₀,₅
  • T₀,₅ ⇒ The half-life of carbon 14 = 5600 years
  • T₀ = 0
  • T₁ = ???

Let us first calculate the radioactive decay constant.

λ = (Ln2)/T₀,₅

λ = 0.693/5600

λ = 0.000123

Now, let us calculate the first term in the equation

Ln (C14T₁/C14 T₀) = Ln (15%/100%) = Ln 0.15 = - 1.89

Finally, let us replace the terms, clear the equation, and calculate the value of T₁.

Ln (C14T₁/C14 T₀) = - λ T₁

- 1.89 = - 0.000123 x T₁

T₁ = - 1.89 / - 0.000123

T₁ = 15,365 years

The person has been dead for approximately 15,300 years

4 0
3 years ago
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