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galina1969 [7]
1 year ago
7

In a _______________________ av junction, the impulse will reach the atria and the ventricles simultaneously, so the p wave is h

idden by the qrs complex.
Biology
1 answer:
professor190 [17]1 year ago
6 0

In a mid-av junction, the impulse will reach the atria and the ventricles simultaneously, so the p wave is hidden by the complex.

The definition of an urge is a strong or unexplained urge. An example of an urge is when you have the urge to go to Vegas. An example of an impulse is buying something without thinking. noun.

An urge is a sudden desire to do something. Unable to contain his impulses, he stared at the sea again. An impulse buys, or impulse buy, is something you didn't plan on doing but decided to do when you saw it. For a constant force, the momentum of a force is the product of the resulting force ΣF and the duration of that force Δt. The force impulse is the cause of the change in movement and therefore the change in impulse.

Learn more about impulse  here

brainly.com/question/229647

#SPJ4

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Why are the cells produced by meiosis considered gametes?
4vir4ik [10]
<span>Gametogenesis is the process of forming gametes (by definition haploid, n) from diploid cells of the germ line. Spermatogenesis is the process of forming sperm cells by meiosis (in animals, by mitosis in plants) in specialized organs known as gonads (in males these are termed testes).</span>
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2 years ago
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Now that you have come up with an equation that describes the relationship between amounts of different nucleotide bases in DNA,
Colt1911 [192]

Answer:

G=21 %

T= 29 %

A= 29 %

Explanation:

Since C only binds to G, you have the same amount of C and G, so G is 21 %.

100 % minus 42 % ( 21 % C plus 21 % G=) equals 58 %.

So the other 58 % is made of T and A. Since T only binds to A , the half of the extra 58 % is T and the other half is A. Therefore 29 % is T and 29 % is A

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3 years ago
Which consist of sperm cells and egg cells? <br> gametes<br> tetrads<br> diploids<br> chromosomes
motikmotik
The answer is Gametes
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3 years ago
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Now, assume the individuals with the filled symbols in the kindred have the O blood type, whereas all the individuals with the o
jek_recluse [69]

Answer:

When we talk about the inheritance of traits, or the passage of traits from parents to future generations down the line, we are not just talking about the visual (phenotypical) expression of those traits, but also, their underlying explanation, which is the genotype. A genotype is basically how the genes of the parents combine in such a way that the children inherit a set of traits from the parents, and express them phenotypically, or not.

In the case of blood types, we have four phenotypic groups: A, B and O. Each one of these types is characterized by the underlying set of genes that are responsible for what is expressed. While the O blood type presents a genotype ii, which is recessive, the A and B types will have the following genetic patterns: Ia Ia, or, Ia i (characteristic of the O genetic material) for the A type and: Ib Ib, or Ib i, for the B type. When there is a genetic conjugation from parents genetic material, regarding blood type, we would have these sets of genes combining. In most of the possible combinations genetically speaking, we have the recessive i gene appearing, including in the A and B dominant blood types. This means that when crossed, there will always be a chance of at least one offspring presenting the O blood type, even if one of the parents is dominant A, or B.

In answer: it is the fact that all three types present the recessive allele i, typical of the O blood type, that when pairings of genes happen between parents, the genetic characteristic of the O type may present itself in a dominant fashion, instead of the usual recessive pattern.

4 0
2 years ago
When did Cyanobacteria start producing pure oxygen
Travka [436]

<u>Answer:</u>

Cyanobacteria start producing pure oxygen around 200 million years ago.

<u>Explanation:</u>

Many scientists believed that Earth did not have any oxygen. Cyanobacteria or the blue green algae are the microbes which produced oxygen for the first time with the help of photosynthesis.  This was around 4.5 billion years ago: after Hadean eon.

They were very simple, but they produced oxygen in the early earth’s atmosphere. So, they brought evolution on earth. This “blue-green algae” exists in salt water, rocks and soils and play a major role in maintaining the ecosystem.

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3 years ago
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