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Lubov Fominskaja [6]
4 years ago
10

What is the Phanerozoic eon?

Biology
1 answer:
stepan [7]4 years ago
6 0

Answer:

The Phanerozoic Eon is the current geologic eon in the geologic time scale, and the one during which abundant animal and plant life has existed. covers 541 million years to the present.

The Mesozoic Era is the age of the dinosaurs and lasted almost 180 million years from approximately 250 to 65 million years ago. This era includes 3 well known periods called the Triassic, Jurassic, and Cretaceous periods.

Dinosaurs are a diverse group of reptiles of the clade Dinosauria. They first appeared during the Triassic period, between 243 and 233.23 million years ago.

Dinosaurs are divided into two orders based on their hip (pelvic) structure:

  • the "Lizard-Hipped" or Saurischian dinosaurs

  • the "Bird-Hipped" or Ornithischian dinosaurs.

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Photosynthesis is a process carried out by
BARSIC [14]

Answer: photosynthesis is a process carried out by plants

Explanation:

Photosynthesis takes in the carbon dioxide produced by all breathing organisms and reintroduces oxygen into the atmosphere. Photosynthesis is the process used by plants, algae and certain bacteria to harness energy from sunlight and turn it into chemical energy.

5 0
3 years ago
What would happen to a cell if all the organelles it contained stopped working?
butalik [34]

Answer:                                                                                                                        If the nucleus didn't exist, the cell wouldn't have direction and the nucleolus, which is inside the nucleus, wouldn't be able to produce ribosomes. ... If the cell membrane were gone, the cell would be uprotected. Everything would lead to the death of the cell.

A. The cell would die.

Explanation:

6 0
3 years ago
The survival of any species depends on variation among its members. Which of the following prodcues the LEAST variation in a spe
Harman [31]

Answer:

asexual reproduction

Explanation:

because every single organism in the species is the exact same genetically, there is no variation between them.

4 0
3 years ago
A student is collecting the gas produced
marissa [1.9K]

Answer:

0.062 moles of hydrogen gas

Explanation:

We must first out down the reaction equation before we can attempt to solve the problem.

Mg(s) + 2HCl(aq) ----> MgCl2(aq) + H2(g)

Next we obtain the number of moles in 1.5 g of magnesium metal from;

Molar mass of magnesium = 24.3 gmol-1

Number of moles of magnesium= mass/molar mass = 1.5g/24.3gmol-1 = 0.062 moles

From the reaction equation;

1 mole of magnesium metal yields 1 mole of hydrogen gas

0.062 moles of magnesium metal will yield 0.062 moles of hydrogen gas

Therefore, reaction of 1.5g of magnesium metal with excess hydrochloric acid will yield 0.062 moles of hydrogen gas.

7 0
3 years ago
2: describe the process of natural selection.
uranmaximum [27]

Answer:

Variation, Inheritance, Time and Adaption.

Explanation:

Natural selection is a simple mechanism that causes populations of living things to change over time. In fact, it is so simple that it can be broken down into five basic steps, abbreviated here as VISTA: Variation, Inheritance, Selection, Time and Adaptation.

6 0
2 years ago
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