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pav-90 [236]
3 years ago
5

Why do most living thing not leave fossils behind

Biology
1 answer:
DiKsa [7]3 years ago
5 0

Answer:

Explanation:

I believe why most living things do not leave fossils behind is most likely because they are decomposed before the fossils are covered by grouts and a predator might've eat them. The fossils are created when a plant or animal dies in a liquid environment and is covered by dirt.

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You may have heard through various media of an animal alleged to be the hybrid of a rabbit and a cat. Given that the cat (Felis
Katyanochek1 [597]

Answer:

The correct answer is - 2n = 41 chromosomes.

Explanation:

It is given that the cat has a diploid chromosome number of 38 while the rabbit has a diploid number of 44 chromosomes and if they form a hybrid then their expected chromosome number in somatic cells would be -

Cat (2n=38) produces haploid gametes with 19 chromosomes (n-19).

Rabbit (2n=44) produces haploid gametes with 22 chromosomes(n=22)

19+22= 41 chromosomes in the particular hybrid as half number of chromosomes come from each parent.

6 0
2 years ago
NEED HELP ASAP!!!!!!!!!!!
ipn [44]
Water is the most abundant molecule in the Earth’s atmosphere is false.
8 0
2 years ago
50 POINTS PLEASE ANSWER ASAP
Artyom0805 [142]

Answer:

I'm a bit confused with the question... it is worded weird.

Explanation:

By the looks of it the controlled variable is how far you dip the paper towel in the water, the independent variable is the bowl filled with water, and the dependent variable is the water climbing up the towel.

FYI: I'm not 100% positive, but I'm pretty sure these are correct for the most part. Sorry I couldn't be more help!

3 0
2 years ago
4. Which of the following elements does not want to have eight valence electrons? a. magnesium c. hydrogen b. oxygen d. nitrogen
Cloud [144]

Answer:

Hydrogen.

Explanation:

Hydrogen is the simplest chemical element that exists. The symbol for the chemical element Hydrogen is "H" and it is a colourless, tasteless, odorless, and highly flammable gas.

Hydrogen is a chemical element found in group (1) of the periodic table and as such it has one (1) electrons in its outermost shell. Therefore, Hydrogen has an atomic number of one (1) and a single valence electrons because it has only one proton and one electron in its nucleus.

Based on the octet rule which states that atoms of chemical elements gain, lose or share electrons so as to have eight (8) electrons in their valence shell. Therefore, atoms of chemical elements bond in order to attain the electronic configuration of a noble gas i.e a full valence shell which comprises of eight (8) electrons.

However, the chemical element "Hydrogen" is an exception to the octet rule because it is only able to hold a maximum of two (2) valence electrons in its outermost shell to become full.

<em>Hence, Hydrogen is an element which does not want to have eight valence electrons. </em>

7 0
2 years ago
B=black and b=brown. A Bb guinea pig crosses with a Bb guinea pig, and four offspring are produced. All of the offspring are bla
Sladkaya [172]

If two Bb guinea pigs cross, there are four possible outcomes:

  • both pass the B: the son is BB
  • one of the pass the B and the other pass the b: the son is Bb
  • both pass the b: the son is bb

Since B (being black) is dominant, the son will be black in both BB and Bb cases. In order for a son to be brown, he must be a pure bb specimen.

So, if all of the offspring are black, it means that all four guinea pigs are either BB or Bb, which in turn means that at least one of the parents passed the B gene.

8 0
3 years ago
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