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coldgirl [10]
3 years ago
6

The Cenozoic Era follows the end of the _______ period.

Biology
2 answers:
BaLLatris [955]3 years ago
8 0
I'm gonna say its # 2 Jurassic
tensa zangetsu [6.8K]3 years ago
7 0

Answer:

Option (D)

Explanation:

The Cenozoic era starts after the end of the Cretaceous. It is marked by the global mass extinction event known as the Cretaceous-Tertiary (K-T) boundary. The Cenozoic era started from about 65 million years back to the recent.

The new species started to evolve from the start of this era and there were abundant land animals during this era, and so this era is often regarded as the age of mammals. This is the most recent era in the geological time scale and is marked by the diverse group of organisms that has appeared after a long evolutionary process.

The Cenozoic era is again divided into three parts-

1) <u>Tertiary-</u> It is divided into (a) Palaeogene, (b) Eocene, and (c) Oligocene

2) <u>Neogene-</u> It is divided into (a) Miocene and (b) Pliocene

3) <u>Quarternary</u>- It is divided into (a) Pleistocene and (b) Holocene

Thus, the correct answer is option (D).

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Flower color in snapdragons results from the amount of the pigment anthocyanin in the petals. Red flowers are produced by plants
USPshnik [31]

Answer:

The genotypes found in the F2 offspring will be An1An1, An1An2 and An2An2.

Explanation:

In the example given in the question, the color of the petals of snapdragon flowers are given with the An1 allele having full activity and the An2 allele being the null allele. For the F1 offspring, two snapdragon flowers are crossed, one with red petals which is An1An1 and one with ivory petals which is An2An2. All the genotypes for the F1 offspring will result in An1An2.

Then using this F1 offspring, the F2 offspring is found and the genotype of the F2 offspring will be An1An1 / An1An2 / An1An2 / An2An2.

So the genotypes found in the F2 offspring will be An1An1, An1An2 and An2An2. One red petal snapdragon, 1 ivory snapdragon and 2 pink snapdragons.

I hope this answer helps.

8 0
3 years ago
The proximal end of the radius illustrates the relationship of form and function. The cup-like surface of the radial head articu
aleksklad [387]
<h2>The Forearm</h2>

Explanation:

The proximal end of the radius illustrates the relationship of form and function. The cup-like surface of the radial head articulates with the rounded shape of the capitulum. This forms a joint that allows for movement of elbows and forearms.

Radius and ulna are the two bones of the forearm.  Their proximal ends articulate and fit into the cup like end of the humerus. This forms a synovial joint called the elbow joint.  The movement of this joint allows the forearms to supinate and pronate.

5 0
3 years ago
Effect of water pollution​
PIT_PIT [208]

Destruction of biodiversity. Water pollution depletes aquatic ecosystems and triggers unbridled proliferation of phytoplankton in lakes — eutrophication —. Contamination of the food chain.Human diseases: Pathogens(viruses,bacteria,fungi,protozoa etc)are biological pollutants of water. They cause typhoid,cholera,dysentery,jaundice,hepatitis.

HOPE IT HELPS

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6 0
3 years ago
If you cross Bb with bb what's is the genotype ratio?
insens350 [35]

Answer:

Genotype ratio 1:1, there are two types of genotype BB and Bb in equal ratio.

Phenotype ratio 1:0, because all offspring have allele B. “B” is dominant and there is no bb genotype, so recessive trait will not be shown.

Explanation:

4 0
2 years ago
Read 2 more answers
What bond holds each amino acid together to make a protein?
Naddik [55]

Answer:

PEPTIDE BOND.

Explanation:

Amino acids can link with each other through a peptide bond to form a protein or polypeptide .

this is a condensation reaction that involves the elimination of water molecule.i.e a H2O molecule is produced in this reaction.

the peptide linkage occurs when the OH group of acidic side of one amino acid reacts with the H-atom of the other amino acid and C-N link to form a bond called a PEPTIDE BOND.

5 0
3 years ago
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