The diagram below shows the bones in the forelimbs of three different organisms.

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How does this support that the organisms developed from a common ancestor and then experienced divergent evolution?

Question 17 options:

Each organism has very different bones present today, and the changes are a result of adapting to the different environment that each organism lives in today.

Each organism has the same number and type of bones present, however mutations created adaptations that allowed them to survive in different environments.

Each organism has the same number and type of bones present, however the changing environmental conditions caused changes in the bones to allow each to survive.

Each organism has very different bones present today, but the original bones would also have been different so each organism could survive its environment.

Question 18 (2 points)

Answers

Answer 1

Answer: C

Explanation: Edge

Related Questions

Consider a population of lizards living on the coast of Africa. A storm creates piles of debris that the lizards use to raft to a faraway uninhabited island. Which evolutionary process is happening?
A) founder effect
B) bottleneck effect
C) coalescence
D) mutation-selection balance

Answers

The evolutionary process that is happening in the scenario where a storm creates piles of debris that the lizards use to raft to a faraway uninhabited island is founder effect.

The founder effect is a situation that occurs when a small group of individuals breaks off from a larger group to form a new population. These individuals are the founders of the new group, and they carry only a small fraction of the genetic diversity found in the original population.

In other words, the genetic diversity of the new population is constrained by the alleles present in the founding population. Therefore, genetic drift, which is a random variation in the frequency of alleles in a population, will be significant and potentially drive the new population's .

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There are _______ amino acids that are uniquely combined to make up proteins important for human health and wellness

A. 10
B. 20
C. 50
D. 100

Answers

There are 20 amino acids that are uniquely combined to make up proteins important for human health and wellness. These 20 amino acids differ from one another based on their side chains, which are also known as R groups.

Amino acids are the building blocks of proteins. In order for a protein to form, amino acids must be linked together in a specific order and shape. This is known as the protein’s primary structure. The side chains of the amino acids play a crucial role in determining the protein’s overall shape, which in turn influences its function.There are two types of amino acids: essential amino acids and non-essential amino acids. Essential amino acids are those that cannot be produced by the body and must be obtained through the diet.

Non-essential amino acids, on the other hand, can be produced by the body.Both essential and non-essential amino acids are necessary for human health and wellness. They play important roles in a wide range of bodily processes, from muscle growth and repair to the production of hormones and enzymes.

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What is the use of pancreas in the human body

Answers

Answer:

production of hormones that regulate blood sugar levels and glandular secretion) and exocrine (the function of the digestive gland)

the percentage of members of a population who have a given trait at the time of a study"" – what is this definition describing?

Answers

The definition that describes the percentage of members of a population who have a given trait at the time of a study is prevalence. This is a statistic term that is used in medicine, epidemiology, public health, and in other related disciplines.

Prevalence is a statistical term that describes the percentage of members of a population who have a given trait at the time of a study. The trait can be any condition, such as a disease or a disorder, or a behavior, such as smoking or physical inactivity. In medical research, prevalence is a measure of how common a particular condition is in a population.The prevalence of a disease or disorder can be calculated in a variety of ways, depending on the study design and the data available.

In cross-sectional studies, prevalence is calculated by dividing the number of individuals with the condition at the time of the study by the total number of individuals in the population. In longitudinal studies, prevalence can be calculated by dividing the number of individuals with the condition at any point during the study by the total number of individuals in the population.The concept of prevalence is important in public health and epidemiology, as it provides an estimate of the burden of a particular condition in a population. Prevalence data can be used to identify populations at higher risk for a particular condition and to guide the development of prevention and intervention strategies.

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because genetic information is transmitted from one generation to the next which of the following is observed?

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As genetic information is transmitted from one generation to the next, the fact which is observed is that, more than 100 genetic disorders result from genetic mutations. A genetic mutation is a change in the sequence of DNA in a gene, which affects the gene's final product.

Genetic mutations can be inherited or acquired throughout a person's lifetime.The genetic material that determines an individual's characteristics is contained in the DNA of the chromosomes. In every cell of a person's body, except red blood cells, there are 46 chromosomes arranged in 23 pairs. Each pair of chromosomes contains genes that are responsible for various traits or characteristics.There are more than 100 genetic disorders that result from genetic mutations. Some examples include sickle cell anemia, cystic fibrosis, and Huntington's disease.

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Which of the following sexually transmitted bacteria is a significant cause of blindness in humans? 1)Treponema B)Listeria C)Chlamydia D)Neisseria.

Answers

The sexually transmitted bacteria that is a significant cause of blindness in humans is Chlamydia. imperative to practice safe sex, including the use of condoms to prevent sexually transmitted infections (STIs) like Chlamydia.

The correct option is -C Chlamydia.

Chlamydia is a sexually transmitted bacterial infection. The bacteria that cause Chlamydia are the Chlamydia trachomatis. It is common in sexually active individuals, and often does not exhibit any visible symptoms. But, if left untreated, it could lead to several severe and life-threatening complications.

In addition to genital infection, Chlamydia infection can also lead to trachoma (a chronic bacterial infection of the eye). Trachoma is a significant cause of blindness in humans, accounting for 5-10% of all causes of blindness. Therefore, it is imperative to practice safe sex, including the use of condoms to prevent sexually transmitted infections (STIs) like Chlamydia.

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Phospholipids spontaneously form a bilayer in an aqueous solution. Why do the heads of the phospholipids point out and the tails point toward one another?

a) The tails are repelled by the aqueous environment, and the heads will directly interact with the aqueous solution.
b) The heads are repelled by the water inside and outside the cell.
c) The tails are nonpolar and form hydrogen bonds with one another.

Answers

The reason for phospholipids spontaneously forming a bilayer in an aqueous solution with the heads of the phospholipids pointing out and the tails pointing towards one another is option A.

The tails are repelled by the aqueous environment, and the heads will directly interact with the aqueous solution. phospholipid bilayer is the basic structure of the cell membrane. It is made up of two layers of phospholipid molecules, each having a hydrophilic (water-loving) head and a hydrophobic (water-fearing) tail.

The tails of the phospholipids are made up of fatty acids, which are hydrophobic, while the heads are made up of a glycerol molecule and a phosphate group, which are hydrophilic. Because of this, the heads of the phospholipids will interact directly with the aqueous environment (either inside or outside of the cell) while the tails will avoid water and instead associate with one another.Phospholipids spontaneously form a bilayer in an aqueous solution because the hydrophilic heads are attracted to water molecules, whereas the hydrophobic tails are repelled by water and will interact with each other instead.

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What kind of access does RNA Polymerase have to heterochromatin?
A.) None
B.) Moderate
C.) Easy
D.) Varied by chromosome
E.) Permanent

Answers

Heterochromatin is a tightly compacted form of chromatin that exists in the nucleus of cells, particularly in eukaryotic organisms.

The correct answer is option A)

It's a type of chromatin that is dense and dark under a microscope, and it contains a small amount of genetic material as compared to euchromatin.RNA polymerase access to heterochromatinRNA Polymerase has no access to heterochromatin, which is a tightly compacted form of chromatin that is usually inaccessible to transcription factors or RNA polymerase. Heterochromatin is distinguished from the more loosely packed euchromatin by its high concentration of the histone H3 variant known as H3K9me3, which is bound by the heterochromatin protein 1 (HP1).

This protein is critical for heterochromatin assembly and its maintenance .Because of the tightly packed nature of heterochromatin, it's inaccessible to transcription factors, and RNA polymerase II, which needs to access DNA for transcription to occur. As a result, genes situated in heterochromatic regions are typically silenced, and they don't express or only express at low levels.

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