Which bases are found in In 1953, who developed the model that is shown below?a strand of DNA?

Answer:

B. Both are involved with stages of succession, but pioneer species are the beginning and climax communities are the end result.

Explanation:

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The relative abundance of species in a community is known as species evenness. Therefore, option C is correct.

Species evenness refers to the measure of the relative abundance of different species within a community or ecosystem. It describes the balance of the distribution of individuals among the different species present in a particular area.

For example, a community with high species evenness would have similar numbers of individuals in each species, while a community with low species evenness would have a few dominant species with many individuals and many less abundant species with fewer individuals.

Species evenness is often used in conjunction with species richness, which refers to the total number of different species present in a community, to provide a more complete picture of the biodiversity of an area. Thus, option C is correct.

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Explanation:

The immune response contributes to homeostasis by helping to fight off infection and heal after infection or trauma. During an infection, molecules called pyrogens are released, which alert the brain to increase the temperature of the body, causing a fever

The homeostatic response when the human body is fighting an infection is negative feedback, increasing body temperature; that is the third option, as increasing body temperature helps to inhibit the growth and replication of pathogens and also enhances the immune response.

When the body is fighting an infection, it triggers a complex set of responses to try to restore homeostasis and overcome the infection. One of these responses is the activation of the immune system, which produces various cells and molecules to fight off the invading pathogens.

One of the most important homeostatic responses during an infection is the increase in body temperature, which is known as fever. The body's thermostat, which is located in the hypothalamus of the brain, is set to a normal temperature of around 37°C (98 °F). However, during an infection, the body may raise its temperature to 38°C (100.4°F) or higher.

Hence, the homeostatic response when the human body is fighting an infection is negative feedback, increasing body temperature; that is the third option.

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Answer:

independent assortment  

Explanation:

The independent assortment of chromosomes refers to the process by which pairs of homologous chromosomes are randomly separated during meiosis. In metaphase I, pairs of homologous chromosomes line up along the center of the cell at the metaphase plate, and subsequently segregate at anaphase I. For example, in humans, there are 8,324,608 different gametic combinations that can result from meiosis (i.e., 23 chromosome pairs >> 2²³ = 8,324, 608 gametic combinations). In consequence, it is almost impossible that two gametes have the same combination of chromosomes after meiosis, thereby this process increases the genetic variation in the population.

The enzyme called tyrosinase produced the dark compound in the skin (melanin) but in albinism, this enzyme does not work or is not present, thereby this mutation could be responsible for Albinism because this phenomenon alters the molecular signaling pathway involved in the synthesis of skin pigments.

The relationship between genetic mutations and the alteration of signaling molecular pathways is based on the fact that alteration in the genetic material can lead to defective proteins involved in a signaling network, thereby altering the final outcome of the pathway.

Therefore, with this data, we can see that the relationship between genetic mutations and the alteration of signaling molecular pathways is based on the molecular mechanisms that are altered during the generation of a phenotypic feature such as in this case skin pigmentation.

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Answer:

high death rate is the major factor that limits population growth, and also the practice of family planning also limit population growth in a contry

According to the information, we have to draw two branches from Cephalopoda to classificate new orders. Also, we have to draw one branch from each order to mention their common names.

To organizate the information in a good way, we have to identify the brach of Mollusks and then, we have to understand how is the organization of each classification.

We have to follow the instructions, so we have to draw three branches from Mollusks to classificate Cephalopoda, Gastropoda and Bivalve. Once we did that, we must to draw two branches from Cephalopoda to classificate new orders (Octopoda and Teuthida). Finally, we have to draw one branch from each one to mention their common names.

Note: This question is incomplete because there is some information missing. Here is the complete information.

Graph attached

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Answer:

2.the inner ear 3. the smooth muscle and the skeleton muscle.

Answer:

When a person has been outside long enough for their core temperature to drop, their body will respond by shivering. Shivering is an involuntary muscle movement that helps to generate heat and raise the core body temperature back to a normal level. This is an important response as it helps to protect the body from hypothermia, a dangerous condition in which the body's core temperature is too low.

Explanation:

Answer:

lower temperatures

Explanation:

Ozone generates heat in the stratosphere, both by absorbing the sun's ultraviolet radiation and by absorbing upwelling infrared radiation from the lower atmosphere (troposphere). Consequently, decreased ozone in the stratosphere results in lower temperatures.

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Yes, there is change when they occur in different ecosystems because each ecosystem contains a different set of abiotic and biotic features that interact with each other.

Competition is defined as the struggle for survival that exists between two similar organisms in an ecosystem where one who gains survives and the one that loses dies.

Predation is defined as the feeding interaction that exist between organisms whereby the one organism, the predator, kills and eats another organism, its prey.

The patterns of interaction between organisms such as competition and predation would change because each ecosystem contains a different set of abiotic and biotic features that interact with each other.

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The test tube that contained cream+ lipase+ bile contains all components necessary for optimum fat digestion.

Fats are lipid molecules of animal origin which usually are on solid form.

Fats are hydrophobic and serve as large energy stores in the body of animals.

The enzymes involved in fat digestion are known as lipases.

During fat digestion, They are first emulisified by bile before action by lipases.

Cream contains fats and are first emulsified before action by lipases.

Therefore, the test tube that contained all components necessary for optimum fat digestion is the one that contains cream+ lipase+ bile.

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Answer:

The test tube that contained cream+ lipase+ bile contains all components necessary for optimum fat digestion.

Explanation:

I am pretty sure i am sorry if i am wrong

In addition to breaking down food so that the nutrients may be absorbed, enzymes also generate vitamins like biotin and vitamin K and protect the body from dangerous microorganisms.

Biological system's ability to self-regulate and maintain stability while responding to shifting environmental factors is known as homeostasis.

The body needs a steady supply of nutrients from food that has been digested. They are crucial for maintaining health and carrying out bodily tasks. The body may absorb and use food that has been broken down by the digestive system.

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Answer:

B

Explanation:

The definition of gradualism is the slow and gradual changes that happen within an organism or society to make a better environmental fit for animals and humans. An example of gradualism is the stripes of a tiger developing over time so they are better able to hide in tall grass.

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Answer:

wave power is greater

Explanation:

deep water waves meaning that the depth of the water is greater the wave length

Answer:

True

Explanation:

Answer:

Activation of infectious inflammation:

PAMPs are derived from microorganisms and thus drive inflammation in response to infections. After identifying microorganisms infections PAMPs by PRRs, activate cytoplasmic complexes called inflammasomes.

After activation of inflammasomes, these inflammasomes activate the protease caspase-1, which then cleaves or breaks various pro-inflammatory cytokines, resulting in maturation and cellular release that cause inflammatory reactions.

Answer:

a. True

b. True

c. False

d. True

e. False

f. False

g. True

Explanation:

The homeotic genes refer to evolutionarily conserved genes that modulate the development of different structures in organisms of the same groups (in this case, plants).  Moreover, homeobox genes are genes that encode transcription factors involved in the regulation of development in eukaryotic organisms. The knotted1 (kn1) gene is a plant homeobox gene is a member of the kn1 homeobox (knox) gene family, which is responsible for maintaining indeterminacy and preventing cellular differentiation. In maize, kn1 plays a key role in maintaining the cells of the shoot apical meristem in an undifferentiated state, being mainly expressed in shoot meristems during postembryonic stages of shoot development. It has been observed that maize mutant plants where kn1 is ectopically expressed (i.e., in tissues in which this gene is not normally expressed) exhibit proximal-distal patterning defects.

Answer: c

Explanation:

a is mitochondria which is part of the cell

b is the cell itself

c is the virus

d is a nerve

Complete question:

Among dogs, short hair is dominant to long hair and dark coat color is dominant to white (albino) coat color. Assume that these two coat traits are caused by independently segregating gene pairs. For each of the crosses given below, write the most probable genotype (or genotypes if more than one answer is possible) for the parents. It is important that you select a realistic symbol set and define each symbol below.

 Parental Phenotypes                         Phenotypes of Offspring    

                                                            Short     Long   Short     Long  

                                                            Dark     Dark   Albino   Albino

(a)  dark, short × dark, long                26          24         0            0  

(b)  albino, short × albino, short          0            0         102        33  

(c)  dark, short × albino, short            16            0          16           0  

(d)  dark, short × dark, short               175         67         61          21

Assume that for cross (d), you were interested in determining whether fur color follows a 3:1 ratio. Set up (but do not complete the calculations) a Chi-square test for these data [fur color in cross (d)].

Answer:

(a) DDSs   x     DDss

     DDSs   x     Ddss

(b) ddSs   x     ddSs

(c)  ddSS   x     DdSS

     ddSs   x     DdSS

     ddSS   x     DdSs

(d)  DdSs     x       DdSs

-------------------------------------------

Chi square = X² = ∑ ((O-E)²/E) = ((242 - 243)² / 243) + ((82 - 81)² /81) = 0.0164  

Explanation:

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

Answer:

There is no picture shown, however, if the variation benefits the organism and helps them strive then the answer would be yes.

Answer:

B. Analogous structure

Explanation:

The wings of a bat and a butterfly perform similar function. They are believe to have evolved differently from different ancestors, however, they perform the same function.

Such structures are referred to as Analogous structures.

Analogous structure like the wing of butterfly and bat appear similar and perform similar function. They have evolved separately to become adapted to perform similar function.

The diagram shows a food web. The snake population is wiped out is the hawk population will decrease. Therefore, option (D) is correct.

A food web is the natural interconnection of food chains and a graphical representation of what-eats-what in an ecological community.

A food web consists of all the food chains in a single ecosystem. Each living thing in an ecosystem is part of multiple food chains. Each food chain is one possible path that energy and nutrients may take as they move through the ecosystem.

The fundamental purpose of food webs is to describe feeding relationship among species in a community. Food webs can be constructed to describe the species interactions.

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Answer:pls what is the question cause im not sure what it is asking

Explanation:

Answer:

Explanation:

The rate of a reaction is a powerful diagnostic tool. By finding out how fast products are made and what causes reactions to slow down we can develop methods to improve production.

Reaction rates are important for biological organisms in order to maintain the proper functioning of organisms' bodies and sustain life generally.

Life in biological organisms is sustained by several interdependent metabolic processes. Each metabolic process consists of reactions whose rates are carefully controlled so as to maintain certain physiological conditions of organisms.

The maintenance of relatively constant internal processes in organisms is what is called homeostasis. If reaction rates exceed or fall below normal, internal physiological processes may become disrupted and this may spell doom for the organism.

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Answer:

answer is C spermatogenesis

Answer: . A mutation is a change in a DNA sequence. Mutations can result from DNA copying mistakes made during cell division, exposure to ionizing radiation, exposure to chemicals called mutagens, or infection by viruses

Explanation:

Answer:

Biology is a branch of science that deals with living organisms and their vital processes.

Explanation:

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