Answer:
The heart initially appears in the midline and we know that it moves to the left. How? Because there are cells that, once the cardiac primordium is formed, arrive from both sides of the embryo towards the center
Answer:
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<em>Science</em><em> </em><em>is a study of nature human</em><em> </em><em>beings plants animals chemicals and machines</em><em> </em>
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The process responsible for the movement of substance A into the cell will be active transport.
<h3>What is active transport?</h3>
It is a kind of cellular transportation of molecules against their concentration gradients through the use of energy.
Active transports are different from passive transports. The latter has to do with the cellular transportation of molecules in and out of the cell without involving the use of energy.
In the diagram, there is more concentration of substance A inside the cell than the outside. Thus, moving substance A into the cell will be a movement against its concentration gradient.
The movement of substances against concentration gradients always requires energy, usually in the form of ATP - active transport.
More on active transport can be found here: brainly.com/question/12133248
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Answer: B or D both the scenarios are explained below
Explanation: The black fur is dominant over white(light) color which means black fur trait only require one copy of allele to express itself.
Where,
B=black
b=white
Provided that the genetic cross is between genotype (BB) and (bb).
so, the probability that the offspring of this cross will have black fur is 100%.
2. Provided that the genetic cross is between genotype (Bb) and (bb).
so, the probability that the offspring of this cross will have black fur is 50%.
Explanation:
unicellular organism are single celled organisms and usually cab not be seen by our naked eyes. Example:yeast, microscopic algae, bacteria and more
multicellular organisms are organisms that have two or more cells. Example plants, animals