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maksim [4K]
3 years ago
7

How are fish hearts and mammal hearts different?

Biology
2 answers:
Nonamiya [84]3 years ago
5 0
They each have different amounts of chambers. Fish have 2 chambers, and mammals have 4 chambers! Hope that helps!
tamaranim1 [39]3 years ago
3 0
One can breathe under water and the other can’t
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There are 150 Pakicetus in the population at present. Assume Charles had another mutation; this one at the B locus, to produce a
alekssr [168]

Answer: Hello your question is incomplete below is the complete question

Let’s look at a different gene locus, we’ll call it B. The normal, wild type, the population was 100% BB. There are 150 Pakicetus in the population at present. Assume Charles had another mutation; this one at the B locus, to produce allele b. What is the gene frequency of allele b in the population if the population of Pakicetus reaches 100,000

answer : ≈ 1

Explanation:

<u>Determine the Gene frequency of allele b </u>

Population = 100,000

There are 150 Pakicetus in population i.e. 300 alleles at locus B

hence the frequency of b = 1/300 = 0.33%

Increase in population does not affect frequency of b ( HW equilibrium )

<em>therefore the Gene frequency of allele b </em>

= 0.33% * 0.33% * 100000 = 1.08  

≈ 1

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In its role as an antioxidant, _____ guards cell membranes, body proteins, dna, and cholesterol, and thus helps prevent heart di
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Answer:

The answer is Vitamin E or α-tocopherol.

Explanation:

Vitamin E is a <u>fat-soluble</u> vitamin is first absorbed in the small intestine and is then <u>stored at the liver</u>. It is an <u>antioxidant</u> which <u>protects cells from free radicals or reactive oxygen species (ROS)</u>. It can also prevent bad cholesterol from depositing in the blood vessels.

Vitamin E can be <u>naturally found in nuts, seeds, and vegetable oils</u>. As a dietary supplement, it takes the form of  α-tocopherol. The RDA depends on the age of the person, as it may range from <u>4 mg to 15 mg per day</u>.

<u>Vitamin E deficiency is so rare</u> that it will only occur if the person has a <u>fat malabsorption illness like Crohn's disease, abetalipoproteinemia</u>, etc. Symptoms of deficiency include <em>muscle weakness, retinal degradation, peripheral neuropathy, and an immunocompromised state</em>.

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Sarah and Jim are siblings, and they both have brown eyes. Their mom, dad, grandparents, uncles, aunts, and cousins have brown e
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Provides evidence that human traits can be passed down genetically
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PLZ EXPLAIN, AND I NEED HELP NOW!
saul85 [17]

Answer:

6 chromosomes

Explanation:

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According to the Punnett square, offspring from these two parents have a ____________ chance of inheriting two b alleles. Indivi
aliina [53]

Explanation:

50%; homozygous recessive; phenotype

According to the Punnett square, offspring from these two parents have a <u>50%</u>chance of inheriting two b alleles. Individuals that inherit two b alleles are <u>homozygous recessive </u>. Inheriting two b alleles confers the <u>phenotype</u> of blue eyes.

Inheritance describes the way in which certain traits are passed onto offspring of sexual reproduction. For instance, co-dominance, both of a gene's alleles are present, and notable in the phenotype.

The nucleus is a large membrane-bound organelle that houses the genetic information, DNA, in the cell. Sequences of DNA make up genes which can have different forms called alleles and comprise the genotype. DNA is transcribed into mRNA and later translated into amino acids which are linked together by rRNA to form proteins. These proteins, when expressed, are referred to as an organism's phenotype.

Learn more about transcription at brainly.com/question/11339456

Learn more about DNA and RNA brainly.com/question/2416343?source=aid8411316

Learn more about proteins and carbohydrates at brainly.com/question/10744528

#LearnWithBrainly

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