which of the following is not an example of evolution by sexual selection? which of the following is not an example of evolution by sexual selection? male peacock tail feather display peppered moth light coloring in the light forest the horns of male elk the large size dimorphism of elephant seal males

Answer:

A and B

Explanation:

The correct answers would be A, B, and E. Hope this helped. Have a nice day :D

Horses can pull wagons because they are large and strong animals with the ability to generate a significant amount of pulling force. Similarly, humans can pull 18 wheelers because they have access to specialized equipment such as hydraulic jacks, winches, and power lifts that enable them to exert a greater amount of force than would be possible with just their own strength.

Hydraulic jacks work on the principle of Pascal's law, which states that pressure applied to a confined fluid is transmitted equally in all directions and acts with equal force on equal areas.

In addition, humans can use leverage and mechanical advantage to amplify their strength and make it easier to pull heavy loads. For example, using a pulley system can reduce the amount of force required to move a heavy object, making it possible for a human to pull an 18-wheeler.

To know more about Pascal's law, visit:

https://brainly.com/question/29875098

#SPJ1

Mendel's laws, which he developed using pea plants, helped establish the laws of genetics.

Using information from genetic crosses in pea plants, Mendel formulated his first law, the law of segregation, which states that the two alleles of a trait separate from each other during the formation of gametes. Thus, half of the gametes carry one allele of a trait, and the other half carry the other allele. A new person is produced when a sperm and an egg combine, giving them both two elements for each trait, just like the parent. This process is known as fertilization.

Mendel also carried out a number of dihybrid crossings, resulting in the creation of his second law, the law of independent assortment. This law states that alleles of a trait independently segregate during the formation of gametes, such that one allele does not influence the inheritance of another gene.

More on genetics: https://brainly.com/question/32287923

#SPJ11

Bacterial operon: Functional DNA unit with promoter, operator, and genes transcribed together.

Lac Operon induction: Lactose inhibits repressor, enabling gene transcription.

Glucose repression: Presence of glucose prevents Lac Operon induction.

Lac operon mutants: lacoe mutants are cis-dominant; CAP gene mutation affects lac operon expression.

A bacterial operon is a set of genes that are regulated together as a single unit, typically under the control of a single promoter. Prokaryotes use operons for transcriptional regulation as a means of conserving energy and resources by only producing the proteins they need in a given environment.

Lactose brings about the induction of synthesis of B-galactosidase, permease, and acetyltransferase by binding to the Lac repressor protein and preventing it from binding to the operator site. This allows RNA polymerase to transcribe the genes of the operon.

Glucose prevents induction of the Lac Operon by inhibiting the activity of cAMP-CAP complex, which is required for activation of the promoter of the operon.

LacOc mutants are cis-dominant but not trans-dominant because they only affect the operon to which they are physically linked.

A mutation in the CAP gene would result in a decreased ability to activate the transcription of the wild-type lac operon in the presence of lactose.

Learn more about bacterial operon

brainly.com/question/3272691

#SPJ11

Answer:

they transfer water and nutrients from the roots the plants leaves

Explanation:

Answer:

Bb, Bb, bb, bb
Blue and pink

Explanation:

   B       b

b  Bb    bb

b  Bb    bb

The genotypes of their offsprings are: Bb, Bb, bb, bb

Since you would need to have at one B to receive blue fur, there is a 50% chance that their offsprings with be blue and a 50% chance that there offsprings will be pink.

Answer:

Proteins with seven conserved "helicase domains" play essential roles in all aspects of nucleic acid metabolism. ...

Explanation:

Known or putative helicases are required for general transcription initiation and for transcription-coupled DNA repair, and may play important roles in elongation, termination, and transcript stability.

The continuous movement of water on, above, and below the surface of the Earth is described by the water cycle, also known as the hydrologic cycle. Evaporation, condensation, precipitation, and runoff are just a few of the crucial processes that make up the cycle.

Water vapor is created when heat energy is absorbed during the process of evaporation, which turns water from a liquid to a gas. Although it also happens from the surface of the soil and vegetation, this mostly happens at the surface of bodies of water, such as oceans, lakes, and rivers. Temperature, humidity, wind speed, and the amount of water surface area available for evaporation are just a few of the variables that affect how much water evaporates.

In order to form clouds, water vapor cools as it ascends and eventually condenses into tiny droplets. These clouds have the ability to produce precipitation, such as rain, snow, or hail, which replenishes the water on the Earth's surface. When the water enters rivers, streams, and oceans, the cycle restarts.

Since it helps to distribute water throughout the Earth's atmosphere and regulates the planet's temperature, evaporation is a crucial component of the water cycle. It is also a crucial process in agriculture because it enables plants to absorb water through their roots and transfer it to their leaves for photosynthesis.

The process of development of specific structures in specific locations is known as pattern formation.

Pattern formation is a fundamental process that underlies the development of all multicellular organisms. It involves a complex interplay of signaling molecules, gene expression, and cellular behavior, which collectively give rise to the diverse shapes and structures of different tissues and organs.

During pattern formation, cells become specialized into different cell types, migrate to their appropriate locations, and differentiate into the appropriate structures. The process is highly regulated and can be influenced by various internal and external factors, including genetic mutations, environmental cues, and cellular interactions.

To learn more about development refer to:

brainly.com/question/6283811

#SPJ4

Answer:

No.

Explanation:

No, solute molecules are larger in comparison to solvents, so they cannot pass through the semi-permeable membrane.

Answer:

Nope Nope Nope, They cannot pass through it

Explanation:

Osmosis describes the diffusion of the solvent through a semipermeable membrane. The driving force of the solvent shift is the concentration difference of solutes in the solutions separated by the semipermeable membrane. In contrast to solvent, solutes cannot pass this barrier.

Answer:

The number of STR repeats is unique and therefore it is considered as an allele of that locus

Explanation:

Short Tandem Repeats (STRs), also known as microsatellites or simple sequence repeats (SSRs), are short DNA sequences with a size of 1-6 nucleotide bases which may be many times repeated in tandem. STRs localize in specific regions of the genome (loci) and therefore they are molecular markers. Gel electrophoresis a technique used to separate DNA fragments based on their size. In consequence, the pattern of STR repeats or 'alleles' obtained by electrophoresis can be used to identify individuals. In a gel electrophoresis, STR markers produce different bands that run more slowly or faster on the gel in different lanes according to their size (e.g., more slowly >> higher size of the STR sequence), and thereby STR alleles are unique and serve to identify individuals.

For radioactive materials with short half-lives, you use a very sensitive calibrated detector to measure how many counts per second it is producing. Then using the exact same set up you do the same at a latter time. You use the two readings and the time between them to determine the half-life. You don’t have to wait exactly a half-life, you can do the math with any significant time difference. Also, you don’t need to know the absolute radioactivity, as long as the set up is the same you only need to know fraction by which it changed.

For radioactive materials with long half-lives that won’t work. Instead you approach the problem differently. You precisely measure the mass of a very pure sample of the radioactive material. You can use that to calculate the number of atoms in the sample. Then you put the sample in a counter that is calibrated to determine the absolute number of disintegrations happening in a given time. Now you know how many of them are disintegrating every second. You use the following equations:

Decays per Second = (Number of Atoms) x (Decay Constant)

Half-life = (Natural Log of 2) / (Decay Constant)

And you can calculate the half-life

Hope it helps :)

Mark it as brainliest pls :)

Water in the air cools down and forms droplets.  The process is called as condensation. The correct answer is option B.  

It is the water cycle in which evaporation along with the condensation both goes on.

Condensation is the process by which the water that is present in the form of vapors in air gets cooled down and the latter changes into the water drops as they fall on the surface. For example when we see a pot in that on the heating the water that is  evaporated falls on the surface if placed a lid.

Basically it is the change in the state where the gaseous state gets changed into the liquid state. It is crucial to the atmosphere as it is responsible for the formation of clouds.

Learn more about water cycle at :

https://brainly.com/question/1151425

#SPJ6

The 7 parts of nephron are: glomerulus, Bowman's capsule, proximal convoluted tubule, loop of Henle, distal convoluted tubule, collecting duct, and papillary duct.

The nephron is the basic functional unit of the kidney, and each nephron is made up of these 7 parts. The glomerulus is a tiny blood vessel surrounded by Bowman's capsule. The proximal and distal convoluted tubules are involved in the reabsorption of vital substances back into the bloodstream. The loop of Henle is responsible for creating a concentration gradient of ions, which helps regulate the balance of salt and water in the body. The collecting duct collects the filtrate from the distal tubule and carries it to the papillary duct, which then drains the filtrate into the renal pelvis, from which it is carried to the bladder as urine.

Learn more about glomerulus here:

https://brainly.com/question/30174227

#SPJ4

Operations performance objectives trade off against each other as the performance of one objective can be improved by compromising on another.

These trade-offs are mostly due to resource constraints, and thus, they are a significant factor in operations management.

Operations performance objectives refer to the specific outcomes that an operation seeks to achieve. They are the goals of an operation. Organizations use operations performance objectives to create a strategy that addresses the objectives and outlines how to achieve them. Operations performance objectives are split into five categories: Cost: This objective refers to providing a service or product at the lowest possible cost.

Quality: This objective refers to providing a service or product that meets or exceeds customer expectations. Speed: This objective refers to delivering a service or product quickly. Dependability: This objective refers to delivering a service or product as promised. Flexibility: This objective refers to the ability to provide a service or product that meets customer needs. Operations performance objectives trade-offs Operational performance objectives trade-offs refer to the relationship between performance objectives. In operations management, achieving one objective often means sacrificing another. For example, achieving higher quality may mean incurring higher costs, which is a trade-off between quality and cost. In some cases, achieving one objective may enhance another. For instance, a quicker turnaround time (speed) can increase dependability and flexibility. These examples show that trade-offs can be positive or negative. The following are common trade-offs among operational performance objectives: Cost vs. quality: Offering higher quality goods or services will increase costs. Flexibility vs. speed: Being flexible slows down the speed of operations. Speed vs. quality: Higher speed may lead to lower quality. Dependability vs. flexibility: To be dependable, the operations need to be standardized, limiting flexibility.

Learn more about Operations performance here.

https://brainly.com/question/29636818

#SPJ11

Three relationships between heredity and environment were outlined by behavior geneticist Sandra Scarr: Because the child's biological parents, who are connected to him or her genetically, provide a setting in which to raise the child, there are passive genotype-environment correlations.

There are three ways that heredity and environment are associated, according to a behavior geneticist: passive genotype-environment correlations, evocative genotype-environment connections, and active (niche-picking) genotype-environment correlations.

There are three different kinds of gene-environment correlations: active (environment preference will reflect a person's genetic makeup), evocative (a person's behavior causes their environment to react, like a husband and wife), and passive (a person's environment as a child is influenced by their genetics).

Learn more about sandra scarr's Visit: brainly.com/question/21579304

#SPJ4

Answer:

Meiosis

Explanation:

Because Meiosis creates cells that are destined to be gametes (reproductive cells), this reduction in chromosome number is critical without it. The union of two gametes during fertilization would result in offspring with twice the normal number of chromosomes

All scientists will be using one name for mountain lions is why it is best for scientists to use the scientific name from the taxonomic system.

This involves the process of naming, defining and classifying organisms based on shared characteristics.

Mountain lions having just one name helps to prevent confusion and is why  it is best to use the scientific name from the taxonomic system.

Read more about Taxonomic system here https://brainly.com/question/1304906

Answer:

All scientists will be using the same name no matter where they live is your answer.

Explanation:

It is because it is a universal language among scientist (binomial nomenclature) It is important that everyone calls animals the same name (in science) so they dont get confuesed and waste time when they could be making discoveries.

The existence of magnetic stripes traced in the oceanic crust reflect the creation and spreading of oceanic crust along the mid-oceanic ridges.

Oceanic crust is the uppermost layer of the oceanic portion of the tectonic plates. It is composed of the upper oceanic crust, with pillow lavas and a complex, and the lower oceanic crust.

The oceanic crust is thin, relatively young and uncomplicated compared to the continental crust, and chemically magnesium-rich compared to continental material. The oceanic crust is the product of partial melting of the mantle at the mid-ocean ridges.

Oceanic Crust Oceanic crust, extending 5-10 kilometers (3-6 kilometers) beneath the ocean floor, is mostly composed of different types of basalts. Geologists often refer to the rocks of the oceanic crust as “sima.” Sima stands for silicate and magnesium.

Learn more about oceanic crust:

https://brainly.com/question/1101764

#SPJ1

Answer:

the one surrounding the nucleus. i cant see what number it is

Explanation:

Translation, in ribosomes, binds amino acids together to form a polypeptide chain, creating proteins, option B is correct.

During the process of translation, the genetic information in mRNA is used to specify the sequence of amino acids in a polypeptide chain. The ribosome facilitates the binding of amino acids together through peptide bonds to create a polypeptide chain.

This process involves the interaction of tRNA molecules with the mRNA and the ribosome, bringing in the appropriate amino acid to the growing chain. Once the chain is complete, it may undergo further modifications, including folding and post-translational modifications, to form a functional protein. Therefore, the step that makes proteins by binding amino acids together is translation in the ribosome, option B is correct.

To learn more about ribosomes follow the link:

https://brainly.com/question/241631

#SPJ1

Answer:

they allow you to breathe, they exchange gases in bloodstream and body tissues, and they allow you to smell.

Answer:

Movement of an oxygen-containing medium so it contacts a moist membrane overlying blood vessels.

Diffusion of oxygen from the medium into the blood.

Transport of oxygen to the tissues and cells of the body.

Diffusion of oxygen from the blood into cells.

The type of endocytosis is the cellular process of engulfing liquid particles by the cell membrane is called pinocytosis

Pinocytosis refers to how living cells consume liquid droplets. Pinocytosis is a type of endocytosis, which is the method by which cells envelop external substances and collect them in special membrane-bound vesicles inside the cell. Pinocytosis occurs when a droplet of the liquid becomes bound, or reabsorbed, on the cell membrane. It then invaginates (creates a pocket) and pinches off to create a vesicle in the cytoplasm instead of a single droplet of liquid traveling inactively through the cell membrane.

To learn more about pinocytosis: brainly.com/question/14776020

#SPJ4

The corpus luteum is maintained until the placenta takes over its hormone-producing functions.

If implantation is successful, the developing embryo releases a hormone called human chorionic gonadotropin (hCG), which signals the body to maintain the corpus luteum. The corpus luteum is a temporary structure that forms in the ovary after ovulation and is responsible for producing hormones, mainly progesterone, to support early pregnancy. By maintaining the corpus luteum, the hCG ensures a continued supply of progesterone, which is essential for the maintenance of the uterine lining and the prevention of menstruation.

This hormonal support is crucial during the early stages of pregnancy until the placenta is fully developed and capable of producing its own hormones to support the pregnancy. Once the placenta takes over the hormone-producing functions, the corpus luteum gradually degenerates and transforms into a scar tissue called the corpus albicans. Therefore, the successful implantation leads to the maintenance of the corpus luteum until the placenta assumes its hormone-producing role.

To learn more about implantation, here

https://brainly.com/question/13085579

#SPJ4

Answer: B: Hypotonic

Explanation:

Just took the test.

Answer:

Explanation:

4

Answer:

Darwin's theory.

Explanation:

The first and third halves of the moon, when the moon seems to be "half full," are when neap tides occur.

Every month, at perigee, when the moon is closest to Earth, tidal-generating forces are stronger than usual, resulting in tide ranges that are higher than typical. When the moon is at its furthest distance from Earth, or apogee, about two weeks later, the lunar tide-raising effect is weaker and the tidal ranges are smaller than usual.

The Moon is facing the Earth and Sun at a 90-degree angle during this phase. The Moon appears to be partially lighted and partially in shadow. We observe what appears to be the right half during the first quarter.

To know more about neap tides visit:-

https://brainly.com/question/29417771

#SPJ1

Answer:

Meiosis is a process where a single cell divides twice to produce four cells containing half the original amount of genetic information. These cells are our sex cells..

Explanation: