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mario62 [17]
3 years ago
10

(ᵔᴥᵔ)(For the smartest of chirren)(ᵔᴥᵔ)

Biology
1 answer:
Dovator [93]3 years ago
3 0

Punnet squares are a useful tool for predicting what the offspring will look like when mating plants or animals. Reginald Crundall Punnett, a mathematician, came up with these in 1905, long after Mendel's experiments. Let's take a look at how Punnet squares work using the yellow and green peas example from im not sure about the tree by three thing but maybe this will help :)

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The Miller and Urey experiment is often viewed as an important experiment for AP Biology students to know/understand. Describe t
Leya [2.2K]

Answer:

The Miller and Urey experiment is a well-known classic experiment in which hypothetical conditions of the early Earth's evolution were simulated to test the possibility of chemical evolution. In fact, this was an experimental test of the hypothesis previously expressed by Alexander Oparin and John Haldane that the conditions that existed on primitive Earth promoted chemical reactions that could lead to the synthesis of organic molecules from inorganic ones. It was held in 1953 by Stanley Miller and Harold Urey. The apparatus designed for the experiment included a mixture of gases corresponding to the notion of the composition of the atmosphere of the early Earth in the 1950s, and electric discharges passing through it (simulating lightning strikes on the ground). The Miller and Urey experiment is considered one of the most important experiments in the study of the origin of life on Earth.

6 0
3 years ago
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The structure of the cell membrane was discovered in 1895 by _________. finding a similarity to olive oil, he discovers membrane
Sidana [21]

In 1895, Ernest Overton proposed that cell membranes were made of lipids

According to the lipid bilayer theory, which Gorter and Grendel put forth in 1925, the cell membrane bilayer structure can be described using crystallographic research and observations of soap bubbles.

<h3>What is Cell membrane ?</h3>

All cells have a cell membrane, also known as a plasma membrane, which separates the interior of the cell from the external environment.

  • A semipermeable lipid bilayer makes up the cell membrane. The movement of materials into and out of the cell is controlled by the cell membrane.
  • Biological membranes serve three main purposes. First, they prevent harmful substances from entering the cell. Second, they have receptors and channels that let certain molecules, like ions, nutrients, wastes, and metabolic products,
  • Third, they divide metabolic processes that are necessary but incompatible that take place within organelles.

Learn more about Cell membrane here:

brainly.com/question/1768729

#SPJ4

5 0
2 years ago
In which direction does the Sun appear to move across the sky?
11Alexandr11 [23.1K]

Answer:

The answer is B. from east to west

6 0
3 years ago
Proof reading is performed by?
anygoal [31]
It's like editing over what's already written. it's the process of reading something and marking for any error. (: Usually deemed more helpful when you let two completely different people proof read the same paper to get a better result!
Good luck, rockstar! (: I wish you the best and hope you pass!
8 0
3 years ago
The lungs remain inflated because ___________.a. intrapleural pressure is exactly equal to atmospheric pressure b. intrapleural
kkurt [141]

Answer:

Option C,  Intrapleural pressure is less than intrapulmonary pressure

Explanation:

During inspiration, the air enters the lungs due to lower pressure in the intrapulmonary or intra-alveolar  than the atmospheric pressure. During quite respiration, the intrapulmonary pressure reduces to a pressure that is 3 mm Hg lower than that of atmospheric pressure. During quiet expiration, the intrapulmonary pressure rises up to a pressure that is 3 mm Hg higher than that of atmospheric pressure. This leads to lack of air in the intrapleural space thereby producing intrapleural pressure which is lesser than that of intrapulmonary pressure.  

This difference in pressure (i.e higher pressure with in the lungs than the atmosphere)  causes lungs to remain attached to the chest wall and hence looks inflated.  

Hence, option C is correct

8 0
3 years ago
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