In humans, there is a phenotype for curly hair and a phenotype for straight hair. The homozygous dominant genotype CC is for curly hair, and the homozygous recessive genotype cc is for straight hair. Heterozygous Cc is a phenotype for wavy hair.

In a hypothetical population, 36% of people are born with straight hair (cc). What percentage of this population will have wavy h

Answer:

The answers are B, C, and D.

Explanation:

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Osmosis Jones is metaphorically a white blood cell, which in biological context, helps protect the body against diseases and fights infections.

Osmosis Jones is a character from an animated film. However, relating this to biology, the character represents a type of cell known as a white blood cell. White blood cells are part of the immune system and help protect the body against diseases and fight infections. In Osmosis Jones' case, he is depicted as a police officer, patrolling the human body and defending it against viruses and bacteria. This characteristically mirrors the role of white blood cells in our bodies.

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Anna's assumption that salty water helps plants grow better is incorrect. High salinity in watering water can cause dehydration and toxicity in plants, resulting in wilting or death. While some specialized plants can tolerate high salinity, it poses serious osmotic stress for most plants.

No, Anna's thinking is not correct. Watering plants with salty water can have detrimental effects on their growth and survival. Salinity in the water creates an osmotic effect that can cause water to diffuse out of the plants, leading to wilting and death. This is due to the plants' inability to absorb water efficiently when competing with high salt concentrations. Consequently, salt does not necessarily increase water uptake in plants but rather creates osmotic stress, posing a threat to their well-being.

In high-salt conditions, two main problems arise for plants: osmotic stress and the accumulation of toxic ions. The osmotic problem emerges as the soil's salt concentrations escalate, making it difficult for plants to obtain water, evoking a state of drought stress. Additionally, toxic ion accumulation occurs when saline levels are high, leading to detrimental effects on the cells, and potentially plant death if the salts are not efficiently excluded or sequestered.

Some plants have developed mechanisms to excrete sodium or sequester it in vacuoles to cope with saline conditions. There are specialized plants, known as halophytes, that have adaptations enabling them to survive in high salt environments. However, these are exceptions rather than the norm. For most plants, exposure to high salinity can lead to deleterious outcomes and negatively impact their growth and development.

Answer:

3

Explanation:

it is a simple microscope

It was a compound light microscope through which microscopes were cells first observed by Robert Hooke. The correct option is C.

Microscopes are electronic magnifying machines that are sued to see very minute objects and the sample of the cell, like blood, or serum. They contain magnifying glasses which make the small things look clear.      

The different types of microscopes that are used in scientific research and experiments are:

The majority of microscopes used in research labs and other settings are called compound microscopes because they use separate objective and eyepiece lens assemblies to provide significantly higher magnification powers.

Thus, the correct option is C. compound light microscope.

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The wind speed is a fundamental quantity of atmosphere that is caused by air moving from pressure high to low due to changes in temperature i.e., pressure gradient.

A physical quantity that shows direction and rate the pressure that increases the most rapidly around a particular location is pressure gradient.

The wind speeds are determined by moving air from pressure high to low due to changes in temperature which means air pressure gradient.

Thus, the answer is air pressure gradient.

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The right option is; a. Predation and commensalism

Predation is an interaction between organisms in which one organism (the predator) benefits from another organism (the prey), while commensalism is also an interaction between organisms of different species in which one species benefits from the other without either harming or benefiting the latter. From the question, the remoras benefits from the relationship by living on sharks and feeding on the leftovers of the sharks, but the sharks are not affected in any way. The relationship describes predation and commensalism.

Half-life is the time taken by a substance (molecule, drug or other) to lose half of its proportion. Used by extension in the field of radioactivity, the half-life, also called radioactive half-life, is the time at which half of the radioactive nuclei of a source have disintegrated.

The term half-life is often misinterpreted: two half-lives do not correspond to the full life of the product. The half-life is, in fact, the median of the life of a product, that is to say, the duration below which there remains more than 50% of the product, and beyond which there remains less than 50%. So two half-lives correspond to the duration where 50% of the 50% of the product remains, ie 25% (the quarter).

Answer:

population

Explanation:

The answer is population

The right answer is It has peptidoglycan.

Eubacteria are not multicellular beings, but are unicellular.

Eubacteria certainly have a cell wall, but we must not forget that plant cells also have a cell wall, so this is not really a feature.

Eubacteria are microorganisms but there are eukaryotic microorganisms, so it is not a characteristic.

Peptidoglycan (or murine, or mucocomplex, or mucopeptide) is a characteristic component of the bacterial wall (not found elsewhere) maintaining the shape of cells and providing mechanical protection against osmotic pressure. It forms a thin layer in Gram-negative bacteria and a thick layer in Gram-positive bacteria.

True

The The National Wildlife Refuge were started in 1903 when there was need to save brown pelicans. This refuge provides home to more than 700 varieties of birds, more than 1000 species of fish, 250 kinds of reptiles and amphibians. They also provide home to countless number of invertebrates and wildlife. Along with animals the National Wildlife Refuge also provides shelter to a large number of plant species.  

The statement is true.

National Wildlife Refuge is the United States premiere network of public lands and waters which provide habitat for fish, wildlife and plants. It is administrated by the US Fish and Wildlife Service and thus looks after the protection of endangered and vulnerable species. It manages migratory birds and restores nationally significant fisheries in the country.

Final answer:

Neutrons are found in the nucleus and have a neutral charge. The proton has a positive charge, while the electron is negatively charged. Liquids allow particles to move somewhat freely, and gases have particles that are the least attracted to each other.

Explanation:

Neutrons are found in the nucleus and have neutral charge. Therefore, the correct answer is that neutrons are found in the nucleus with a neutral charge.

The particle with a positive charge is the proton. Protons are constituents of the nucleus and carry a positive electric charge.

The particle with a negative charge is the electron. Electrons orbit the nucleus and are negatively charged.

In the state of matter where particles move somewhat freely but not enough to fill the entire space of a container, the correct answer is liquid. Unlike solids, whose particles vibrate but do not move from place to place, particles in a liquid can move around each other, although they are still attracted enough to stay together.

Particles are the least attracted to each other in the gas state of matter, allowing them to fill the entire space of a container.

Answer:

2 ATPs are produced in fermentation and 38 ATPs are produced in cellular respiration

Explanation:

A cell undergo lactic acid fermentation only when there is no oxygen i.e anaerobic condition only. This usually happens when a person do rigorous exercise and the oxygen demand escalate suddenly which is unmet by normal respiration process.

In fermentation,  carbohydrates such as starch or sugar convert  into lactic acid or alcohol in the absence of oxygen with production of 2 ATP while in cellular (aerobic respiration) nearly 38 ATPs are produced

Energy exists in different forms, including chemical, mechanical, radiant, and electrical energy.

Energy exists in different forms, such as chemical energy, mechanical energy, radiant energy, and electrical energy. Chemical energy is stored and released as chemical bonds are formed and broken. Mechanical energy directly powers physical activity. Radiant energy is emitted as waves, such as in sunlight. Electrical energy is the power of moving electrons.

Chemical Energy: This is the energy stored in the bonds between atoms and molecules. It's released during chemical reactions. For example, the energy in food is released and converted into other forms when it's digested.

Mechanical Energy: This is the energy associated with the motion or position of an object. It can be either kinetic energy (associated with motion) or potential energy (associated with position). For example, a moving car has kinetic energy, while a book on a shelf has potential energy.

Radiant Energy: Also known as electromagnetic energy, this form of energy includes visible light, radio waves, X-rays, and other forms of electromagnetic radiation. It travels in waves and carries energy.

Electrical Energy: This is the energy associated with the movement of electrons. It's what powers electrical devices and flows through wires to provide electricity for various purposes.

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Answer;

D. Most of the energy from photosynthesis flows out as heat

Explanation;

Energy flow is the amount of energy that moves through a food chain in a given ecosystem.

Producers such as green plants in a ecosystem convert energy from the the sun into carbon bonds, such as those found in the sugar glucose through the process of photosynthesis.

The amount of chemical energy storied as nutrients in the bodies and wastes of organisms flows through ecosystems from one trophic level to the next and through this flow energy also is lost as heat. And the chemical energy available to the succeeding feeding level decreases.

Final answer:

The period of cell growth and duplication of cell parts is called interphase. Interphase consists of three stages: G1, S, and G2, during which the cell grows, replicates its DNA, and prepares for division.

Explanation:

The period of cell growth and duplication of cell parts is called interphase. Interphase is the phase of the cell cycle during which the cell grows, carries out normal metabolic functions, and replicates its DNA. It consists of three stages: G1, S, and G2.

During G1, the cell grows and doubles its organelles. In the S phase, the cell replicates its DNA. And in G2, proteins are synthesized that will help the cell divide. After interphase, the cell enters the mitotic phase, which includes mitosis and cytokinesis, resulting in the formation of two daughter cells.

Explanation:

Haploid cells have the half number of chromosomes(n) than the other groups. Other groups may be diploid, triploid, or sexual and asexual etc. Diploid cells have two complete set of chromosomes(2n), triploid cells have 1 complete set of chromosomes and a 1 half number of chromosome that is (3n). Diploid cells present in each cell an organism and haploid cells are present in gametes forms during spermatogenesis and oogenesis. Mitosis is the parent cell divided into the two daughter cells  with equal to 2n. Whereas meiosis produces four genetically different daughter cells.

Answer:

A.activators and inhibitors

Explanation:

took test

Final answer:

Nonnative plants are able to grow after a forest fire due to the increased availability of sunlight and open space after the elimination of the dominant tall trees. This process is part of secondary succession, which leads to the eventual recovery and formation of a new climax community.

Explanation:

After a forest fire, the dominant tall trees that previously shaded the ground and absorbed most of the sunlight are no longer present. This loss of canopy opens the area to sunlight, allowing nonnative plants and pioneer species to grow. These plants are often well-adapted to thrive in the open, sunny, and disturbed conditions that a fire creates. The process through which a forest recovers after a disturbance like a fire is known as secondary succession.

Initially, annual plants and grasses will colonize the area because they grow quickly and can take advantage of the sudden abundance of sunlight and space. As these pioneer species alter the environment, such as by enriching the soil with their decomposing biomass, the area becomes more accommodating for other plants like shrubs and eventually small pine, oak, and hickory trees, referred to as intermediate species. Over time, a new climax community forms, resembling the original forest's species composition.

Answer:

DFG = 48°.

JKL = 42°.

Explanation:

DFG and JKL are the complementary angles.

Complementary angles may be defined as the angles that has the sum of 90°.

∠DFG + ∠ JKL = 90°.

∠DFG = x+2 and ∠ JKL = x-4.

x+2 + x-4 = 90°

2x- 2 = 90°

x = 46°.

DFG = x+2 = 46+ 2 = 48 °.

JKL = x-4 = 46-4 = 42°.

Thus the answer is DFG = 48 and JKL = 42°.

Answer:

True.

Explanation:

One and effective example is forest fires. They tend to happen naturally also, in hot seasons. Also, we have volcanic eruptions, wind erosion, natural radioactivity...

Just remember that pollution means the presence of contaminants that causes adverse changes, against natural equilibrium.

Answer:

c

Explanation: