Belding’s ground squirrels live in closely related groups. When they feed in the open, certain individuals (guard squirrels) watch for predators instead of feeding. The guard squirrels give an alarm call when a predator is sighted, allowing the rest of the group to run safely. Researchers have noted that, because the alarm call draws attention to the guard, the guard is more likely to be caught by the predator and has a lower survival rate than the other squirrels. Which of the following best explains the behavior of the guard squirrels?
A. The behavior of the guard squirrels increases the survival of close relatives that share the genes of the guard squirrels.
B. Guard squirrels typically have recessive alleles, and by sacrificing themselves, they lessen the chance that recessive alleles will get passed on.
C. Guard squirrels are typically females who have already reproduced, so they are no longer needed by the group.
D. The guard squirrels confuse the predator, lowering the predator’s success rate because the predator cannot tell which squirrel is producing the sound.

The type of scientist best qualified to perform genetic engineering to produce more productive seeds in agriculture would be a molecular biologist, the correct option is C.

Molecular biologists specialize in studying the structure, function, and interactions of molecules within biological systems, including DNA and genes. Genetic engineering involves manipulating the genetic material of organisms, which requires a deep understanding of molecular biology principles.

Molecular biologists have the expertise to identify and isolate specific genes responsible for desired traits in crop plants, such as increased productivity or resistance to pests or diseases. They can then modify or introduce these genes into target plants to achieve the desired outcomes, the correct option is C.

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The AU-rich element in the 3' untranslated region of some eukaryotic mRNAs plays a crucial role in mRNA degradation. If this element were mutated or deleted, the mRNA would be more stable, leading to increased gene expression.
If the AU-rich element in the 3' untranslated region of a eukaryotic mRNA were mutated or deleted, the mRNA would likely be more stable, leading to increased gene expression. This is because AU-rich elements are involved in regulating mRNA stability, and their absence can result in a longer mRNA half-life, leading to increased protein synthesis and gene expression.

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The tool that is commonly used for cutting wood, trees, and grasses is a bolo, option A is correct.

This tool is a long-bladed cutting implement that is similar to a machete or a large knife. The blade of a bolo is typically made from high-quality steel and is designed to be sharp and durable and used for cutting wood, trees, and grasses.

The handle of a bolo is usually made from wood, plastic, or other materials that are comfortable to hold and provide a good grip. The bolo is a versatile tool that can be used for a wide range of outdoor activities such as farming, gardening, and hunting, option A is correct.

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Answer:

hey MR.PICKLE it is bellzE

Explanation:

I miss u

Condensation

Condensation is the process by which water vapor in the air is changed into liquid water. Condensation is a apart of the water cycle because it is responsible for the formation of cloud.

People born with high genetic risk for schizophrenia were A. less likely to develop schizophrenia if they were raised in healthy family environment than if they were raised in disturbed family environment.

Schizophrenia is a mental disorder where people interpret reality very abnormally. Schizophrenia can result in combination of hallucinations, delusions, and extremely disordered thinking and behavior that impairs daily functioning and people with schizophrenia require lifelong treatment.

The exact cause of schizophrenia is not known but combination of genetics, environment, and altered brain chemistry and structure may have a role. Schizophrenia is characterized by thoughts that seem out of touch with reality, disorganized speech or behavior.

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Answer:

ductility is ability to lengthen when pulled or bent.

Explanation:

Metal are ductile while non metal are brittle.

Hope this helps :)

need further explanation? don't hesitate to ask

Answer:

Explanation:

Answer:

Eating whole grains like brown basmati rice is linked to a lower risk of heart disease. Whole grains help to reduce blood cholesterol levels.

https://www.webmd.com/diet/health-benefits-basmati-rice#1

Bacteriophages engage in two interactive cycles with bacteria, these cycles are lytic cycle and the lysogenic cycle

Bacteriophages have two interactive cycles with bacteria, namely the lytic cycle and the lysogenic cycle. In the lytic cycle, phages invade the host cell and use its replication and metabolic machinery to create progeny phages. In this cycle, the phage hijacks the bacterial cell's transcriptional, replicative, and translational processes, leading to the destruction of the bacterial cell.

In contrast, the lysogenic cycle occurs when the phage integrates its genome into the host bacterium's chromosome as a prophage and replicates as a part of the bacterial genome, without causing the host's cell death. The phage's genome exists in the lysogenic cycle in a dormant state and activates during times of stress to shift into the lytic cycle. So therefore these cycles are lytic cycle and the lysogenic cycle the lytic cycle results in the host cell's death and the lysogenic cycle results in the genetic modification of the host bacterium, which can lead to changes in its phenotype.

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Answer: Zeb2 controls commitment to both the cDC2 and pDC lineages by inhibiting Id2.

Explanation: Pre-pDCs give rise to plasmacytoid dendritic cells, whereas pre-cDCs, which are lineage-committed, give rise to the two lineages of conventional dendritic cells (cDC1 and cDC2). The formation of pDCs and cDC1s has been linked to a number of transcription factors , but it is uncertain whether TFs are necessary for pre-cDCs to commit to the cDC2 lineage at an early stage. From the pre-pDC and pre-cDC stage on, Zeb2 was expressed, and it was significantly expressed in mature pDCs and cDC2s. Id2 was discovered to be a specific target of Zeb2 by chromatin immunoprecipitation research. We thus deduce that Zeb2 controls commitment to both the cDC2 and pDC lineages by inhibiting Id2.

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Answer:

In taxonomy, an undescribed organism is a taxon (for example, a species) that has been discovered, but not yet formally described and named.

Explanation:

Answer:

yep hmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmj

Explanation:

Answer:

5

Explanation:

The object distance Is 20 I'm

The image distance is 6.666

Therefore the focal length can be calculated as follows

1/f = 1/20 + 1/6.66

= 6.66+20/133.2

= 26.66/133.2

1/f= 26.66/133.2

f = 133.2/26.66

= 4.99

= 5

Hence the focal length is 5

Answer: B. The bacteria would be genetically more similar

The inability to perform transduction would hurt the bacterial colony's chance for survival because: B. The bacteria would be genetically more similar.

Transduction can be defined as a biological process which typically involves the change of a signal message contained in the outside of a cell to a message within or inside the cell.  

Generally, the inability of the bacteria in a colony to perform transduction would hurt their chance for survival because the bacteria would become genetically more similar.

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Answer:

Since plants and fungi are both derived from protists, they share similar cell structures. Unlike animal cells, both plant and fungal cells are enclosed by a cell wall.

The name of the process in diploid eukaryotic species where homologous chromosomes exchange pieces with each other is called "crossing over."

This process occurs during meiosis and is responsible for genetic diversity in offspring.

Homologous pairs of chromosomes exist in diploid cells, homologous chromosomes, and alleles connected to diploid cells. These chromosomal pairs carry the same genes, but not necessarily the same alleles.

In a homologous pair, all the chromosomes have the same genes in the same order, but there may be variations between them that give rise to various alleles. Different variations in these alleles may or may not have functional implications.

Homologous chromosomes align during meiosis, and recombination takes place between them. This produces genotypes with distinctive combinations of alleles on each chromosome, and as a result, distinctive individuals.

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The correct answer is D. DNA polymerase is not involved in the transcription of DNA into mRNA, but rather in the replication of DNA. The essential components in transcription include the promoter,

which signals the start of transcription and is recognized by RNA polymerase; transcription factors, which bind to the promoter and help recruit RNA polymerase to the correct site; the template DNA strand, which serves as the blueprint for mRNA synthesis; and the terminator sequence, which signals the end of transcription. During transcription, RNA polymerase reads the DNA template strand and synthesizes a complementary RNA strand, which is then processed and exported to the cytoplasm for translation into protein.

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Bats have a longer lifespan compared to mice, even when the mice are protected throughout their lives in a laboratory setting, due to a combination of genetic, physiological, and lifestyle factors.

Bats have a lower metabolic rate compared to mice. Generally, animals with lower metabolic rates tend to live longer. This is because a slower metabolism produces fewer metabolic byproducts, such as free radicals, which can cause damage to cells and tissues over time.

Bats have more efficient DNA repair mechanisms. DNA damage is one of the main factors contributing to aging and age-related diseases. Bats have evolved enhanced DNA repair mechanisms, which help them maintain the integrity of their genetic material for longer periods, reducing the accumulation of age-related damage.

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Answer:

a) Cats show incomplete dominance which means the kitten can be born with full length tails, short length tails and without tails.

b) The genotype of the parent will be heterozygous (Tt ) and the kittens will be:

Genotype | Fenotype

-TT | (long tail)

-Tt | (short tail)

-tt | (no tail).

Answer:

it is accepted that cells contain DNA in chromosomes and RNA in the nucleus and cytoplasm, but only in the modern cell theory. the classical cell theory does not include this. ... though prokaryotes (e.g. bacteria) contain DNA, they lack a nucleus.

Explanation:     prokaryotes is the answer

Gymnosperms and angiosperms are both seed-producing vascular plants, but differ in the way their seeds are enclosed and in the production of flowers.

Similarities:

Differences:

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The type of fatty acid that has hydrogen atoms located on the same side of the double bond is a cis fatty acid.

Fatty acids are organic molecules composed of a hydrocarbon chain and a carboxyl group (-COOH) at one end. They can have one or more double bonds in their hydrocarbon chain. In cis fatty acids, the hydrogen atoms attached to the carbon atoms of the double bond are on the same side of the molecule.

The cis configuration creates a kink or bends in the fatty acid chain. This bent structure affects the physical properties of the fatty acid, such as melting point and fluidity. The presence of the cis double bond introduces a rigid and less compact structure, making the fatty acid more likely to be in a liquid or oily state at room temperature.

Therefore, it is the cis configuration of the double bond in fatty acids that causes the hydrogen atoms to be located on the same side of the bond.

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If there was a dramatic increase in skeletal muscle cell damage and apoptosis, I would not expect a change in blood myoglobin and CK levels, because these markers are linked to cardiac muscle damage.

Elevated CKMB can be a sign of cardiac (heart muscle) damage or chronic kidney failure. At the onset of acute symptoms, after cardiac peaks, CKMB values ​​are elevated after 3-6 peaks after 12-24 hours between 12-24 hours, values ​​at 24-48-48.

With this information, we can conclude that if there was a dramatic increase in skeletal muscle cell damage and apoptosis, we would not expect a change in blood myoglobin and CK levels, because these markers are linked to cardiac muscle damage.

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Explanation:

The answer is #1.

As cells become abnormal, old and damaged cells do not go through the cell cycle and can not regenerate like usual & the damaged. Any new cells are the cancerous ones that triple in number.

The disruption of cell cycle regulation is one of the main features of cancer. The correct option is 1.

The cell cycle is a strictly controlled process that makes sure that cells grow, divide, and are kept in good condition.

This regulating mechanism can be upset in cancer by mutations or changes in the genes responsible for controlling the cell cycle.

The cell cycle typically moves forward through a number of checkpoints that keep an eye on the DNA's integrity, the availability of critical resources, and the signals for cell division.

These checkpoints serve as controls to stop the division of damaged or aberrant cells.

Thus, the correct option is 1.

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Answer:

organic compounds always have a carbon atom while most of the inorganic compounds do not contain the carbon atom in them.

Explanation:

In soil management in agriculture, the materials and methods used should be described in sufficient detail to allow another competent worker to replicate the work.

This typically includes information about the materials used, such as the type of soil, fertilizers, and amendments, as well as the methods employed, such as tillage practices, crop rotation, and irrigation techniques. Additionally, the time frame, location, and any specific measurements or data collection procedures should be included. By providing these details, the process of soil management can be accurately replicated by others in the field.

Adding organic matter, such as compost, manure, or cover crops, improves soil structure, water-holding capacity, and nutrient content. Organic matter also enhances microbial activity in the soil, promoting nutrient cycling and overall soil health. Conservation tillage practices minimize soil disturbance and erosion by reducing or eliminating plowing or intensive tilling. This helps preserve soil structure, moisture, and organic matter, while also reducing fuel and labor costs.

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Explanation:

guesss b............

Answer:

Answers for the entire assignment for e2020! This will help future people in order to get a excellent grade! :)

Determine whether each statement below describes traditional or modern classification.

(Answers)

Traditional Classification is based on similar appearance

Modern Classification is based on evolutionary relationships

Modern Classification is known as Cladistics

Traditional Classification is known as Linnaean classification

Which piece of information provided the stimulus for the shift from traditional classification to modern classification?

Answer: An understanding that species share a common ancestor

Fill in the blank below with the vocabulary word that best completes the sentence.

Using a ______  clock, scientists are able to estimate the amount of time that two species have been evolving independently.

Answer: molecular

How does the molecular clock work?

Answer: It compares the number of mutations that exist in the DNA of two different species.

Select the correct word from the drop-down menu to complete the sentences.

______ are branching diagrams that depict the evolutionary relationship among species.

Answer: Cladograms

_____ is a point in a cladogram where a single ancestral lineage breaks into two or more descendant lineages.

_____ is a group of organisms that includes an ancestor and all of its descendants.

_____  is any named group of organisms, whether they form a clade or not.

Answer(s):

Node

Clade

Taxa

According to the cladogram, which of the following is the derived characteristic shared by amphibians and reptiles?

Answer: Lungs

After much research and DNA analysis it has been determined that species in the same clade are actually more distantly related than originally thought. What is one way that the cladogram may change because of this information?

Answer: A node would be introduced

According to the cladogram, which species are MOST closely related?

Answer: D and E

Use the cladogram about fish to answer the following questions.

Which of the following best describes the organism located at point B?

Answer: Has jaw, but no bones

The organism at location D is the  ______ to organisms at location A, B, and C.

Answer: Ancestor

According to the cladogram, arthropods are MOST closely related to which group of organisms?

Answer: annelids

You're welcome! :)

Explanation:

Answer:

c

Explanation:

Ecology is an area of study that focuses on interactions in nature.

Answer:

The answer is choice C

Explanation:

All the ohther answers are techniqually not "studying"

Answer:

This makes it quite difficult to model considering that different bacteria and microorganisms behave differently.

Explanation:

Small biomes or microbiomes often have complex microclimates, which are shaped by many factors. The challenge is building and replicating normal conditions for these microorganisms.

Answer:

A.

Explanation:

I'm so sorry if I'm wrong answer

Answer:

According to the multiple choice given it's most likely A