What is the blood flow of the ventricular systole? What is the blood flow of the diastole?
What if the blood flow of the antrial systole?

Answers

Answer 1

Answer: 1. pump blood into the pulmonary trunk from the right ventricle and into the aorta from the left ventricle
2. it occur as the heart beats, pumping blood through a system of blood vessels that carry blood to every part of the body.
3. incorrect question

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The man responsible for devising the modern scientific classification system still in use today is ______ .a. Carolus Linnaeusb. Sir Harry Johnstonc. Albert Einsteind. William S. Pinkston Jr.
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Manuel releases a pendulum bob. The drawing shows its path. At which point does the pendulum bob have the most gravitational potential energy? A. point B B. point C C. point D D. no differences
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Ex.1 Which of the following statements regarding mutation rates is correct? a) Mutation rates are independent of gene size. b) Mutation rates for all genes of an organism are approximately the same. c) Mutation rates are independent of exposure to external agents such as UV radiation. d) Average mutation rates vary among taxonomic groups. Practice Problem 64 The amino acid changes noted in Parts A-C are the result of changes in DNA sequence. For each of these amino acid changes, evaluate whether a single base change in the given codons could account for the change in the amino acid. Part A For which codon(s) could a single base change account for this amino acid change? Lysine to Asparagine Select all that apply. UUU AAG AAA none of these codons Part B For which codon(s) could a single base change account for this amino acid change? Alanine to Phenylalanine Select all that apply. GCG GCU GCC GCA none of these codons Part C For which codon(s) could a single base change account for this amino acid change? Leucine to Glutamine Select all that apply. CUC UUG UUA CUG CUU CUA none of these codons

If bed bugs had never been exposed to DDT in the 1950's and 1960's, how would you expect that to affect bed bugs' resistance to pyrethroids during the last decade?

Answers

What is the connection between DDT and pyrethroids? They are both pesticides, but different ones. However, many mutations that protect the bugs from one of them also work on the other.

So, if they had been exposed, they'd be selected for resistence to these pesticides. But if they have not been exposed; they would be dying more often during the last decade.

its D: Without the use of DDT, natural selection would not have favored any mutations that provided protection from pesticides; bed bugs would be more susceptible to today's chemicals.

Sometimes scientists make a mistake, or ___, and need to do the experiment again?

Answers

Sometimes scientists make a mistake, or error, and need to do the experiment again.

The errors can occur at various stages, including experimental design, data collection, analysis, or interpretation.

When scientists make a mistake or encounter unexpected results, it can compromise the validity or reliability of their findings.
Mistakes can arise due to human error, such as miscalculations, misinterpretation of instructions, or accidental contamination.
Equipment malfunctions or technical issues can also contribute to errors in data collection or measurement.
In some cases, scientists may realize that they have made a mistake during the experiment, such as using the wrong reagent or applying an incorrect procedure.

Recognizing these mistakes and errors is an important part of the scientific process.

Thus, the complete sentence is "Sometimes scientists make a mistake, or error, and need to do the experiment again".

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Complete question.

Complete the sentence.

Sometimes scientists make a mistake, or ___, and need to do the experiment again.

Sometimes scientists make a mistake, or errors / miscalculations, and need to do the experiment again.

Wind with the speed of less than 50 km/h is called

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Winds with the speed of less than 50km/h is called a tropical storm. A tropical cyclone is a rapidly rotating storm system characterized by a low-pressure center, strong winds, and a spiral arrangement of thunderstorms that produce heavy rain. I hope this helps.

Tropical Cyclone? There are names when the sustained wind hits less than 50km/h.

Which of these animal groups was NOT present by the end of the Cambrian? bryozoans arthropods chordates mollusks

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Only phylum bryozoans were not present during Cambrian period. It is an extensive fossil that did not appear in Cambrian nor pre-cambrian rocks. Bryozoans are found in the early Ordovician period. It could have probably existed during the Cambrian period but were soft-bodied or not preserved.

The original population of brown spotted deer declined drastically after their forest habitat was flooded. After frantic efforts over three decades by the forest authorities to revive the dwindling population, it did bounce back. Now the deer population is as huge as it was three decades ago, but it shows a decreased amount of genetic variations. Which factor could be responsible for this microevolution?

Answers

Evolutionary bottleneck. The current population is descended from the few deer that existed at the population's lowest level.

A. Convergent evolution produces organisms with different adaptations but common ancestry, whereas adaptive radiation produces organisms with similar adaptations but different ancestry.

Mollusks' group of organs is called a

Answers

It is called the visceral mass

The structure that mollusks use to excrete wastes is known by the name of nephridia. Mollusk is the other name for shellfish. there are three varieties of shell fish present. Hatcher footed, Belly footed and head footed variety of shellfish are available.

Final answer:

The group of organs in a mollusk is called a 'visceral mass'. It includes the digestive system, respiratory system, circulatory system, and the reproductive system. The mass is enclosed within the mollusk's shell in many species.

Explanation:

The group of organs within a mollusk is called a 'visceral mass'. Mollusks are a group of invertebrates that includes animals such as snails, clams, and squids. The visceral mass, which is surrounded and protected by the animal's shell in many species, includes systems for digestion, circulation, respiration, and reproduction.

The digestive system of a mollusk includes a mouth, stomach, and intestines where food is ingested, broken down, and nutrients are absorbed. The circulatory system is typically open, meaning blood flows freely in cavities within the visceral mass. The respiratory system typically involves a pair of gills where oxygen is absorbed and carbon dioxide expelled.