The two different extreme variations in a trait are favored in
a. directional selection
b. disruptive selection
C. stabilizing selection
d. alternate selection

Answer:

The correct answer is option A, that is, light intensity and direction.

Explanation:

A photoreceptive organelle witnessed in the motile or flagellated cells of unicellular photosynthetic species like euglenoids and green algae is known as the stigma or the eyespot apparatus. It permits the cells of the organism to detect the intensity and direction of the light and react towards it.  

This assists the organisms to either swim away from the light known as negative phototaxis, or to swim towards it known as positive phototaxis. The eyespots are the basic and the most typical eyes witnessed in nature. The eyespots comprise bright areas or orange and red granules of pigment and photoreceptors.  

Answer:

Cell membrane is fluid because individual phospholipid molecules and proteins can diffuse within their monolayer and thus move around.

Explanation:

Answer:

oxygen

Explanation:

I think it's oxygen, if not I'm sorry

The concentration of which gas results from the activity of producer organisms is oxygen. Thus, option C is correct.

Producer organisms that has been included the plants as well as algae and refer to the organisms that are able to produce their own food by the synthesizing it from inorganic matter. This has been what plants and algae are able to do just through the process of the photosynthesis.

During photosynthesis, these has been organisms produce food for themselves and in doing so they produce the oxygen as a by-product. This has been what contributes mostly to the concentration of oxygen in the atmosphere.

Strontium and oxygen is a pair  of atoms that would exhibit ionic bonding. During the process of photosynthesis has been defined as the process by which green plants prepare their own food in the presence of sunlight and during this process heat energy has been converted into chemical energy.

Therefore, The concentration of which gas results from the activity of producer organisms is oxygen. Thus, option C is correct.

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Scientists have to draw a conclusion by identifying and reporting only the data that support the investigation's hypothesis.

A scientist will follow the scientific method described in the steps below when conducting scientific research in order to conduct the study:

A scientist may be able to draw a conclusion based on the data he or she has gathered and interpreted. The conclusion of the investigation must be supported by the evidence that has been gathered during the investigation, such as data and observations. A conclusion may explain the causes and effects of the events that occurred during the course of the investigation by explaining what caused them.

Hope this helps :)

Answer:

D. By thinking critically and logically about possible explanations for

the data.

Explanation:

It was not B. :(

Answer:

synchronized

Explanation:

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Moths and other insects collected around lights like lamps is a common sight, particularly in the summer. Frequently, organisms mesmerised by such a radiance die from overheating or are devoured by predators.

Certainly, there is blood in insects, but it is not human blood. Human blood is red because of the presence of haemoglobin and is needed to transport oxygen throughout our bodies. In insects, blood carries nutrients but not oxygen throughout the body.

According to the "tergal theory," wings may have developed as gliding membranes on the tergum, the top of the insect body wall. The "pleural theory" contends that ancient leg segments that fused with the torso before ending up on the back gave rise to wings.

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The type of volcano that is pictured is Shield volcano. That is option A.

Volcano can be defined as the eruption of the gases, lava and ash through an opening from the earth crust.

There are various types of volcano an example of which is the Shield volcano.

The shield volcano is different from other volcanoes because they :

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Answer:

He separated the phages into radioactive sulfur-containing protein ghosts and radioactive phosphorus-containing DNA. They found that the radioactive sulfur protein ghosts could attach to bacterial membranes while the radioactive phosphorus DNA could not

Answer:

He separated the phages into radioactive sulfur-containing protein ghosts and radioactive phosphorus-containing DNA. They found that the radioactive sulfur protein ghosts could attach to bacterial membranes while the radioactive phosphorus DNA could not

Explanation:

The change to the investigation that would remove the source of the error noticed by the scientist is to test a fourth group, in which the participants do not receive the mineral supplement (option A).

A controlled experiment is an experiment designed to replicate the main experiment in every way, except in respect of the one variable that is being tested, so as isolate the effect of that variable.

In other words, a control is introduced in the experimentation process. A control is group of test subjects left untreated or unexposed to the independent variable.

According to this question, a company is testing the effect of a mineral supplement on common cold. The experimental procedure is okay except that they didn't include a fourth group, which will serve as the control.

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An insertion error during DNA replication can occur when an extra nucleotide is added to the growing DNA strand.

During DNA replication, the DNA double helix unwinds and separates into two strands. Each strand serves as a template for the synthesis of a new complementary strand. DNA polymerase, an enzyme involved in DNA replication, adds nucleotides to the growing DNA strand based on the template strand. However, sometimes errors can occur in the DNA polymerase's activity.

In the case of an insertion error, an additional nucleotide is inserted into the newly synthesized DNA strand. This can happen if the DNA polymerase mistakenly incorporates an extra nucleotide during the replication process. As a result, the DNA sequence becomes longer by one nucleotide at the specific insertion point.

These errors can disrupt the reading frame and potentially alter the protein-coding sequence, leading to changes in gene function or protein structure.

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Answer:

NAD+ is reduced to NADH during glycolysis in yeast.

Explanation:

Answer:The RNA remains in the nucleus and that dna leave the nucleus is the one that is incorrect

Rna is called the messenger dna because after it creates a copy it leave the nucleus and goes to the ribosome to make proteins while dna stays in the nucleus

Answer:

5 answer is c

6 answer is a

Explanation: your welcome

The functions of rough endoplasmic reticulum and Golgi body are related because A .proteins synthesised by the rough endoplasmic reticulum are modified by the Golgi body

Both the Golgi body and the rough endoplasmic reticulum (RER) are important in the production and processing of proteins. Ribosomes, which are found throughout the RER and produce proteins, are subsequently transferred into the lumen of the RER for further processing. These proteins are delivered by the RER to the Golgi body, where they are modified, sorted, and packaged for distribution to various locations inside cell or for secretion beyond it.

The Golgi body is in charge of altering proteins that the RER has synthesised. This might entail altering amino acids by adding or removing functional groups, adding carbohydrate chains to proteins to create glycoproteins, or chopping off pieces of proteins to create smaller peptides.

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Answer: answer below ⬇

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According to the question the solubility %Ba and %Li in the sample are 25.8% and 74.2%, respectively.

Solubility is the property of a substance to dissolve in a solvent. It is a measure of how much of a substance can dissolve in a given amount of a particular solvent.

The solubility of BaCl₂ is 0.75 g/L and the solubility of LiCl is 0.78 g/L.
The number of moles of BaCl₂ and LiCl present in the sample can be calculated as follows:
BaCl₂: 0.2025 g/ (208.23 g/mol) = 0.000973 moles
LiCl: 0.2025 g/ (71.9 g/mol) = 0.002804 moles
The amount of AgNO₃ needed for the precipitation of the chlorides is calculated as follows:
BaCl₂: 0.000973 moles x (1 mol/1 mol) = 0.000973 moles AgNO₃
LiCl: 0.002804 moles x (1 mol/1 mol) = 0.002804 moles AgNO₃
Total amount of AgNO₃ needed = 0.000973 moles + 0.002804 moles = 0.003777 moles
Therefore, the amount of AgNO₃ solution required for the precipitation of chloride is calculated as follows:
0.003777 moles / (0.1200 M) = 0.031483 L = 31.48 mL
The amount of AgNO₃ solution required for the precipitation of chloride is 20.25 mL, which is lower than the calculated amount of 31.48 mL. This means that not all of the chloride ions present in the sample were precipitated.
The %Ba and %Li in the sample can be calculated as follows:
%Ba = (Moles of BaCl₂/Total moles of BaCl₂ and LiCl) x 100
%Ba = (0.000973 moles/ (0.000973 moles + 0.002804 moles)) x 100
%Ba = 25.8%
%Li = (Moles of LiCl/Total moles of BaCl₂ and LiCl) x 100
%Li = (0.002804 moles/ (0.000973 moles + 0.002804 moles)) x 100
%Li = 74.2%
Therefore, the %Ba and %Li in the sample are 25.8% and 74.2%, respectively.

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Answer:
C. phosphorus

Explanation:

Fragmentation is a form of asexual reproduction and is seen in annelids, fungi, cyanobacteria, sponges, and flatworms.

In Fragmentation, an organism divides itself into a number of fragments. It occurs when an organism completely breaks down independently irrespective of the other parts. Each one of these fragments matures into fully grown adults that are clones of the original organism.

Asexual reproduction usually involves the participation of a single parent alone can produce new offspring. The newly produced individual is genetically identical to one another and its parent. Both multicellular and unicellular organisms divide by fragmentation which is asexual reproduction.

Fragmentation is the most common method of reproduction in lower invertebrates. It is seen in many organisms including filamentous cyanobacteria, algae, lichens, molds, many plants, and animals such as flatworms,  annelid worms, sponges, and sea stars.

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The organisms that can reproduce by fragmentation are Option d Sponges and Sea anemones.

Fragmentation is a form of asexual reproduction in which an organism breaks into two or more fragments, and each fragment develops into a new individual. Both sponges and sea anemones are examples of organisms that exhibit this mode of reproduction.

Sponges are simple multicellular animals that lack true tissues and organs. They possess a porous body structure, and when a sponge is fragmented, each fragment has the potential to develop into a new sponge through regeneration. These fragments contain specialized cells called archaeocytes that can differentiate into various cell types required for the formation of a new sponge.

Sea anemones, on the other hand, are marine animals belonging to the phylum Cnidaria. They have a cylindrical body with tentacles surrounding their mouth. When a sea anemone is fragmented, each piece can regenerate into a complete individual. The process involves the differentiation of cells within the fragments, leading to the development of new tentacles, body parts, and eventually a mature sea anemone.

Both sponges and sea anemones have remarkable regenerative abilities, allowing them to reproduce through fragmentation. This form of asexual reproduction enables them to colonize new areas, expand their population, and adapt to changing environmental conditions. Therefore the correct option is D

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The Question was Incomplete, Find the full content below :

The organisms which can reproduce by fragmentation are:

(a) Corals and Sponges

(b) Corals and Spirogyra

(c) Sea anemone and Spirogyra

(d) Sponges and Sea anemones.

Explanation:

Gene therapy involves altering the genes inside your body's cells in an effort to treat or stop disease. Genes contain your DNA — the code that controls much of your body's form and function, from making you grow taller to regulating your body systems

Gene therapy is a medical field which focuses on the utilization of the therapeutic delivery of nucleic acids into a patient's cells as a drug to treat disease. 

Hurricanes can lead to deforestation by the force of the winds being able to destroy the flora, eventually because of that, and the fauna in points of contact with the hurricane. Trees can be blown away, as weel as, some animals, being taken to great distances and destabilizing the florest habitat.

Answer:

Between 100,000 and 150,000 light-years

Explanation:

According to BBC, "the Milky Way Galaxy is probably between 100,000 and 150,000 light-years across"

Answer: In addition to the phospholipids, the plasma membranes of animal cells contain glycolipids and cholesterol. The glycolipids are found exclusively in the outer leaflet of the plasma membrane, with their carbohydrate portions exposed on the cell surface.

Explanation:

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Answer:

Glucose

Explanation:

Glucose is the macromolecule that is a product of photosynthesis.

In photosynthesis, the macromolecule glucose is made from solar energy, water, and carbon dioxide.

Answer: glucose

Explanation:

Answer:

c

Explanation:

always were either one color or the other

Answer:

Sperm and ovum

Explanation: