one specific substance necessary for muscle activity that is delivered to muscles more efficiently as a result of increased heart rate

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Answer 1
Answer: One specific substance necessary for muscle activity that is delivered to muscles more efficiently as a result of increased heart rate is blood volume. With increased blood volume, the amount of hemoglobin will increase and this will result in an increased intake of oxygen. This will make a person exercise for a longer span of time.

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In nerve cells the sodium-potassium pump is used to generate gradients of both sodium and potassium ions to propagate electrical signals that travel along nerves. This is a(n)

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active transport or endo or exocytosis

active transport mechanism

Mendel's experiments demonstrated the law of dominance: traits are inherited as dominant and recessive alleles, and the dominant allele for a trait can mask the presence of the recessive allele. Occasionally, that law is contradicted: offspring exhibit a blend of their parents' traits. For example a red flowering plant when crossed with a white flowering plant would produce a plant with pink flowers. This type of inheritance pattern is called A) codominance. B) multiple alleles. C) incomplete dominance. Eliminate D) heterozygous dominance.

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Answer:

Incomplete dominance

Explanation:

Due to technical problems, you will find the complete explanation in the attached files.

The venus flytrap is different from most other green plants because it _____.   a. can digest insects.  
b. grows very slowly.  
c. survives without much water.  
d. lives off the roots of a tree.

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Answer: a. can digest insects.

Explanation:

The Venus flytrap is a carnivorous plant that is native to the subtropical wetland of East Coast of United States. It exhibit tiny hair like outer structures which are capable of trapping the insects. The enzymes present inside the plant are capable of digesting the insects. It is different from other plants as plants basically acquire their nourishment from photosynthesis. Along with photosynthesis animal like carnivory can also be a mode of nourishment for this organism.

"A" because the Venus trap has a key word TRAP plus the plant is know for that

What are the 2 main types of cells?

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Eukaryotic and Procaryotic cells

Which of the five factors that can lead to evolution would operate on a change in body color that enabled animals to better hide from predators?A. natural selection
B. genetic drift
C. sexual selection
D. gene flow

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Adaptive evolution means evolutionary changes in an organism that make it suitable for its habitat. Natural selection is the factor that can lead to evolution for change in body color that enabled animals to better hide from predators.

What is the process of adaptive evolution?

A genetic trait that helps organisms to increase their reproductive success are adaptive traits. It is a type of natural selection.

Adaptive evolution can be done by following process:

  • Selecting beneficial alleles.
  • Increasing their frequency.
  • Selecting deleterious alleles.
  • Decreasing their frequency.

Thus,the correct option is A.

For more information about adaptive evolution, visit:

brainly.com/question/1596691

D.Gene Flow or B.Genetic Drift! Because most of the time, its genetics or genes!

where does embryo development take place in oviparous animals?

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Oviparity means a mother animal does not retain the eggs of her offspring, the embryonic development occurs outside a living body. Most fish, amphibians, and reptiles are oviparous while all birds, bugs, and arachnids are oviparous.