Which of the following statements about human impact on trees is true? a. Human activity always has a negative impact on trees. b. All human uses of trees require destruction of the trees. c. Human activity has had both a positive and negative impact on trees. d. Cutting down trees is the only activity that has a negative impact on trees.

Answer: C. a population in Florida

As a biologists is writing about a report on group of rattlesnakes that all lived in the state of Florida. It is mentioning about the species of a particular snake but a group of organisms considering a group or organisms which breed with one another and produce offsprings that can reproduce together. All these features can be defined under a single term called as population. Members of species that are be breed with each other and can produce viable fertile offsprings is called as population. Therefore, in this report biologist is describing about population in Florida.

Answer:

The correct answer is option C, a population in Florida

Explanation:

The population description is an efficient language is termed as demographics. The descriptive components of the demographics are –  

a) Population Size – It gives the number of individuals within a population

b) Population Density – It defines the size of a population with respect to the space occupied by it

c) Age Structure of the Population – It categorizes different individuals in a population group to different age sections

d) Fecundity – It describes about an individual that is able to produce during a given period of time  

e) Morality – It gives the death and birth rate of a population

f) Sex ratio

The right answer is B. glaciers and polar ice caps.

The hydrosphere is the part of the globe occupied by water (or ice). it includes oceans, rivers, lakes, glaciers, polar ice caps...

Glaciers and polar ice caps are the only solid elements in the hydrosphere (rocks and minerals are not part of the hydrosphere but the lithosphere).

The hydrosphere includes materials that are not in liquid form, such as glaciers and polar ice caps, which are the largest stores of fresh water, greater than groundwater, lakes, and streams.

The materials included in the hydrosphere that are not in liquid form are glaciers and polar ice caps. These represent significant stores of freshwater and are part of the Earth's hydrosphere, even though they are in solid form. The largest store of fresh water in the hydrosphere is not the ocean, but rather glaciers and ice caps, followed by groundwater. The majority of Earth's freshwater is locked up in these reservoirs, vastly more than what is found in lakes and streams.

The option that does not contribute to Earth's uneven warming is 'The Sun is farther from Earth during the winter.' The other options relate to how sunlight interacts with Earth's surface and atmosphere, which are true contributors to the uneven warming of the Earth.

The student asks which factor does not contribute to the uneven warming of Earth's surface. The incorrect option among those provided is b. The Sun is farther from Earth during the winter. While it's true that Earth's orbit is elliptical and the distance from the Sun changes slightly over the year, this variation is not significant enough to cause the seasons or affect the uneven warming of the Earth's surface. Instead, the uneven warming is mainly due to the other three factors: different surfaces warming at different rates, the Sun's rays hitting the surface at different angles, and different surfaces retaining energy differently. The way the Sun's rays strike Earth varies depending on factors like the angle and duration of sunlight, which are influenced by Earth's tilt and position in its orbit around the Sun. During summer, for example, the Sun's rays hit the Earth more directly, causing more intense and concentrated warming.

Answer: The correct answer for the blank is-

A. tropism.

Tropism is a biological process that indicates growth of a plant in a particular direction in response to any external stimuli (any change in the environment that induces a specific response in a biological system).

For example - Phototropism in plants is a type of tropism process in which plants tend to grow towards the direction of sunlight.

Thus, option A) is the right answer.

Answer:

Scientifc therory is the correct answer

Explanation:

Mitochondria and vacuoles perform distinct roles within a cell, with the mitochondria providing energy through cellular respiration, and the vacuoles storing water, nutrients, and waste and maintaining the shape of the cell. The energy provided by the mitochondria is critical for the function of the vacuoles, and indeed all other parts of the cell.

The mitochondria and vacuole in a cell carry out distinct but interconnected roles. The mitochondria, often called the 'powerhouse of the cell', is where cellular respiration occurs. This process converts energy stored in nutrient molecules such as glucose into adenosine triphosphate (ATP), a form of energy that the cell can use.

On the other hand, vacuoles serve as a storage and transport system. They not only store water, nutrients, and waste products, but also help in maintaining the shape of the cell. In plants, enzymes within vacuoles can break down macromolecules. Some vacuoles, known as contractile vacuoles, can excrete excess water and waste from the cell through a process called endocytosis, where the vacuoles merge with the cell membrane and expel waste into the environment.

While their functions may seem separate, the energy provided by the mitochondria is critical for the function of the vacuoles, and indeed all other parts of the cell. Thus, the mitochondria and vacuoles work together to ensure the cell can function and survive.

https://brainly.com/question/4121224

#SPJ2

Answer: The correct answer is -

c. the leg.

Skeletal muscle is one of three major categories of muscle tissues (other two being smooth muscle and cardiac muscle.

This is striated muscle tissue, which is voluntary in nature (therefore also termed as voluntary muscle) and lies under the somatic nervous system.

Majority of skeletal muscles are connected to bones with the help of tendons (which are bundles of collagen).

Skeletal muscles provide support to the body and assist in movement. This is because contraction of skeletal muscle allows pulling of tendons, which are basically attached to bone. This assist in movement of legs (such as walking, jumping).

This indicates that every physical activity performed by an organsim is related to skeletal muscle.

Thus, muscles associated with legs are example of skeletal muscles.

Therefore, option c) is the right answer.

Answer:

The correct answer is the option: heredity

Explanation:

Hello!

Let's solve this!

Hereditary diseases are uncontrollable. Since they depend solely on the genes we have, inherited from our parents.

This is a very very important factor is cardiovascular disease, more specifically.

We conclude that the correct answer is the option: heredity

The theory of special creation predicts that there should be no nonfunctional structures in perfectly adapted organisms, contrasting with evolutionary theory which supports adaptation and change over time.

The theory of special creation predicts that there should be no nonfunctional structures in organisms perfectly adapted to their environment. This viewpoint is based on the belief that each species was created individually and perfectly suited to its environment from the outset, making the idea of vestigial organs or structures unnecessary according to this theory. In contrast, evolutionary theory, supported by evidence such as the presence of vestigial structures and fossils indicating gradual changes in species over time, suggests that organisms do change and adapt through natural selection and shared ancestry.

Answer:

The correct answer is - test tube 4.

Explanation:

The sprig of Elodea produces carbon dioxide and oxygen after the incubation of 24 hours whereas the snail releases the oxygen in the test tube during the incubation period. The presence of both gases gives a yellowish color to the test tube solution.

Incubation is the process in which organisms or anything at a precise environment and temperature so it can develop properly.

Thus, the correct answer is- test tube 4.

The correct answer is - d. all of the above.

The fish populations and other aquatic resources can be affected by multiple factors. The water temperature is a defining factor, if it is colder than lots of marine life will dye out and be replaced with other species, and vice versa, if its too warm lots of marine life adapted to colder conditions will die out. Diseases are always an impact factor in any environment, so if a dangerous, fatal, disease appears, it can demolish the populations of the aquatic organisms. The water quality is becoming an ever-growing concern, and that is because of the human activity. If the water gets polluted, or eutrophicized, the marine life will very quickly die out and leave empty waters behind it.

Answer:

D: Telophase

Explanation:

The following is NOT a product of the Krebs Cycle is FADH2. The correct option is D.

The Krebs cycle is also called the tricarboxylic acid and citric acid cycle. This cycle works under aerobic conditions. This produces energy in bodies. Krebs cycle converts acetyl CoA molecules into NADH.

Pyruvic acid and acetyl-CoA combine to create glucose in this mechanism. The Krebs cycle, commonly known as the aerobic stage because it takes place in the presence of oxygen, is the second step of cellular respiration.

Given that anaerobic organisms cannot survive in the presence of oxygen, we might infer from this that not all living things participate in the Krebs cycle. NADH is not produced in this cycle.

Therefore, the correct option is D. FADH2.

To learn more about Krebs Cycle, refer to the link:

https://brainly.com/question/7220096

#SPJ2

Answer: Option D

Explanation:

At the time of DNA replication the nitrogenous bases used is thymine because DNA is the end product of replication.

Whereas, in case of translation the end product is mRNA in which the nitrogenous base used is uracil.

Both of the process combinely helps in cell division and formation of new cells.The proliferation of cell is very crucial and important step inside the cell.

Answer:

genetic variation

Explanation:

trust in me

Answer:

[tex]120[/tex] N-m

Explanation:

Work done is equal to the product of  mass of an object and the distance by which it is displaced.

Hence, mathematically the relationship between work done (W), Mass of an object (M) and its displacement (D) is equal to

[tex]W = M * D[/tex]

Substituting the given values in above equation, we get -

[tex]W = 20 * 6\\W = 120[/tex] N-m

Hence, work of [tex]120[/tex] N-m is done here

Answer: A) The rate of photosynthesis would decrease and less glucose would be produced.

Explanation: Photosynthesis is a phenomenon in which green plants containing chlorophyll use sunlight as a source of energy to convert carbon dioxide and water to form glucose and oxygen.

Photosynthesis is the process used by plants, algae and certain bacteria to convert energy from sunlight and turn it into chemical energy in the form of glucose which is used a s a source of energy by many organisms.

[tex]6CO_2+6H_2O\overset{sunlight}\rightarrow C_6H_{12}O_6+6O_2[/tex]

Thus decreasing the amount of sunlight would decrease the rate of photosynthesis and less glucose will be produced.

Answer:

The time passed would be an independent variable and the height of the lentil seedling would be the dependent variable.

Explanation:

The actual variable a researcher sets out to measure during the course of a research is the dependent variable. It is measured to determine how its response to variation in the independent variable.

The independent variable is the one that is usually manipulated or changed during the course of a research or experiment. The effect it creates is determined by measuring the dependent variable.

Hence, in a graph of growth rate of a plant, a growth measuring factor (such as height, number of leaves, branching, etc.) serves as the dependent variable while time will serve as the independent variable.

Therefore, in the case of Paisely, the height of the lentil seedling would be a dependent variable and the time passed would be the independent variable.

Answer: Carnivore, consumer

Explanation:

The carnivores are the animals that feed on the smaller organism for their energy. They can be as small as a bird and as bid as a lion.

Consumers are the organism that feed on the producers for their energy needs. Here, the bird is omnivores that feed on insect as well as on plants for their energy needs.

A bird feeding on insect is an example of consumer, carnivore.

Raccoons belong to the family Procyonidae. This family is part of a hierarchical taxonomic classification system used in biology to organize and understand relationships between organisms.

The raccoons belong to the family Procyonidae. This classification is part of the taxonomic hierarchy, which categorizes living organisms in a ranked structure from broad to specific. The hierarchy includes the domain Eukarya, followed by the kingdom Animalia, the phylum Chordata, class Mammalia, and then progresses to the order Carnivora. Within this order, we find the family Procyonidae, which includes the genus Procyon, and finally the species lotor, signifying the common raccoon with the scientific name Procyon lotor. Taxonomic classification is important in biology as it helps scientists organize and understand the relationships between different organisms. Each level of classification from kingdom down to species is referred to as a taxon.

The right answer is it can be attributed to similarities among organisms in proteins and nucleic acids (especially in their coding regions in their genome).

Genomes consist of coding regions, which correspond to genes, and non-coding regions. The coding part is the one that gives the proteins that are involved in the structure and metabolism of the individuals. if two individuals have a similar protein-giving genome, then they will probably have the same structure and metabolism.