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Vlad [161]
3 years ago
5

A pea plant is heterozygous (aa) for seed color and heterozygous (bb) for seed shape. according to mendel's principle of indepen

dent assortment:
Biology
1 answer:
max2010maxim [7]3 years ago
8 0

According to Mendel’s principles of independent assortment is that a gamete that receives a dominant allele for the colour of the seed, it is equally likely to receive the allele dominant for the shape of the seed as it is in the recessive allele for the shape of the seed.

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How are things transported through the membrane
AlladinOne [14]

Answer:

The mechanisms of transport across the cell membrane are as follow: 1- simple diffusion, 2- facilitated diffusion, 3- primary active transport and 4-secondary active transport

Explanation:

The cell membrane is a selectively permeable structure capable of transporting substances by different mechanisms. Simple diffusion is a type of passive transport (i.e. does not require energy) where non-polar molecules (e.g. O2, CO2) pass across the membrane by a process that does not require energy from the cell. Facilitated diffusion is another type of passive transport where larger polar molecules (e.g., glucose and amino acids) pass across the membrane by using specific transmembrane integral proteins. On the other hand, primary active transport is a type of active transport that uses chemical energy (e.g., ATP) to move substances such as metal ions (Na+, K+, Ca2+) across the cell membrane against their concentration gradient. Finally, secondary active transport is another type of active transport where transporter proteins are used to couple the movement of ions (e.g., H+ protons) down their electrochemical gradient to the transport of another ions/solutes against their concentration/ electrochemical gradient.

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3 years ago
What is an electrically charged atom? A. ion B. isotope C. molecule D. compound
Alenkinab [10]

The answer is A because it’s  produced by either moving or removing electrons from the neutral atom

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3 years ago
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The plasma membrane of the sea urchin egg ______. A. is outside of the fertilization membrane B. releases calcium, which initiat
Butoxors [25]

The plasma membrane of the sea urchin egg has receptor molecules that are specific for binding acrosomal proteins .

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

Plasma membrane is the outermost covering of the body which selectively permits the entry and exit of different type of materials .

Thus ,it is also called as selectively permeable membrane.it also separates the inner and outer environment of the cell .

It also helps in the diffusion process .

<h3>What are sea urchins ?</h3>

Sea urchins belongs to the animalia kingdom , Echinodermata Phylum, and Echinoidea class . they are small marine animals .Sea urchins are spiny , globular .

Learn more about sea urchins here :

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8 0
2 years ago
Regular aerobic exercise gives an individual more endurance is a sentence that shows cause and effect. Which word indicates the
Elenna [48]
<span>b. Exercise



If we conduct a research investigation in these given situation. More specifically, an experiment this would suggest a most probable scenario of a cause and effect situation or technically called causality. 

Here the Independent variable is the exercise 
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Hence regular EXERCISE increases endurance. </span>
8 0
3 years ago
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2. Before Mendel's discoveries, which
Alexus [3.1K]
I believe letter (c) is the right answer
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3 years ago
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