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olga2289 [7]
2 years ago
7

Which factor is a major cause of the changes that

Biology
1 answer:
slamgirl [31]2 years ago
3 0

The changes that occur during puberty are mostly a result of changes in hormone levels in the body.

<h3>Puberty</h3>

The transition from a child to an adult is caused by changes in the level of some hormones in the body.

In females, there is an increase in follicle-stimulating hormones as well as luteinizing hormones, leading to an increase in the production of progesterone.

In males, there is an increase in the production of testosterone hormone among many other hormones.

Both progesterone and testosterone are responsible for the development of physical features in females and males respectively.

More on puberty can be found here: brainly.com/question/9410140

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Which two phrases describe the nature of an electromagnetic force?
AysviL [449]

Answer:

opposite charges attract one another.

Like charges.repel

5 0
3 years ago
Read 2 more answers
An alleles is dominant is heterozygote when it is
Fittoniya [83]

An allele is dominant and heterzygote (Pp) when a dominant allele (P) is crossed with a recessive allele (p).

Explanation:

A dominant allele is the one with a particular dominant character or phenotype which dominates even though there are other alleles found.  

A heterozygous allele results from two different alleles coding for a gene.

A heterozygous dominant allele (Pp) results from the crossing of a dominant allele (P) with a recessive allele due to complete masking of the recessive allele (p).

For example, when dominant brown eyes are crossed with recessive blue eyes, in a heterozygous dominant allele results in brown eyes and masks the recessive blue eyes.

4 0
3 years ago
Critically analyze the following three popular training systems: bigger, faster, stronger (BFS); crossfit; and high intensity tr
elixir [45]

Answer:

The answer is explained below

Explanation:

The BFS program consists of training for agility, flexibility and sport-definite technique five days per week and weight training three days per week. This program is specifically for athletes and not for your average fitness clients; it still does not adhere to the Principle of Individual Differences.

CrossFit- Crossfit is a strength and conditioning program mainly the mix of aerobic exercise, calisthenics (Body weight exercise). In this type of gyms use equipment for multiple disciplines including barbells, dumbbell, pull-up bars. This type of workout makes body more flexible and capable to bear the abnormalities when necessary. Many types of workout are in it like, Chipper (squats, press ups, burpees), Ladder.

HIT – High Intensity Training refers to the one set failure type training program promoted as the most effective and scientifically based strength training program. In this type of program multiple sets of each exercise are performed. Volume is the most common form of weight training program seen in the gym and fitness centers. HIT also recommended sporting persons.

Human born with different strengths and weakness, this fact is considerable for the training program. When beginners at any sport see great improvement when he or she starting their programs. Person needs to improve their loading as possible to make them stronger.

Nowadays CrossFit is the best workouts to have to do because it makes physically stronger, flexible and smarter.

6 0
3 years ago
Which describes the process of fermentation?
xxMikexx [17]

Explanation:

<u>anaerobic process that restores NAD+ supply </u>

<u></u>

Within cells, aerobic respiration may not occur due to several factors:

  • - a lack of inorganic, final electron acceptors
  • -incomplete or lack of a complete electron transport system
  • -missing genes for enzymes within the Kreb's cycle

Thus, they utilize other means for the generation of energy in the form of ATP and to replenish NAD+ an oxidized form of NADH, the main electron carrier in glycolysis. Pyruvate is produced in the cytoplasm via glycolysis- it is also used as an electron acceptor in a process called fermentation.

Further Explanation:

overall: C6H12O6 (glucose) + 6 O2 → 6 CO2 + 6 H2O + ≈38 ATP

In all eukaryotic cells mitochondria are small cellular organelles bound by membranes, these make most of the chemical energy required for powering the biochemical reactions within the cell. This chemical energy is stored within the molecule ATP which is produced. Respiration in the mitochondria utilizes oxygen for the production of ATP in the Krebs’ or Citric acid cycle via the oxidization of pyruvate( through the process of glycolysis in the cytoplasm).

Oxidative phosphorylation describes a process in which the NADH and FADH2 made in previous steps of respiration process give up electrons in the electron transport chain these are converted it to their previous forms, NADH+ and FAD. Electrons continue to move down the chain the energy they release is used in pumping protons out of the matrix of the mitochondria.

This forms a gradient where there is a differential in the number of protons on either side of the membrane the protons flow or re-enter the matrix through the enzyme ATP synthase, which makes the energy storage molecules of ATP from the reduction of ADP. At the end of the electron transport, three molecules of oxygen accept electrons and protons to form molecules of water...

  • Glycolysis: occurs in the cytoplasm 2 molecules of ATP are used to cleave glucose into 2 pyruvates, 4 ATP and 2 electron carrying NADH molecules. (2 ATP are utilized for a net ATP of 2)
  • The Citric acid or Kreb's cycle: in the mitochondrial matrix- 6 molecules of CO2 are produced by combining oxygen and the carbon within pyruvate, 2 ATP oxygen molecules, 8 NADH and 2 FADH2.
  • The electron transport chain, ETC: in the inner mitochondrial membrane, 34 ATP, electrons combine with H+ split from 10 NADH, 4 FADH2, renewing the number of electron acceptors and 3 oxygen; this forms 6 H2O, 10 NAD+, 4 FAD.

Learn more about cellular life at brainly.com/question/11259903

Learn more about cellular respiration at brainly.com/question/11203046

#LearnWithBrainly  

6 0
3 years ago
(Physical or Chemical Property). When you can use your 5 senses to determine a substance.
ser-zykov [4K]

The answer is Physical Property

5 0
3 years ago
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