A scientist is studying a worm. It is three millimeters long and pointed at each end. The worm is unsegmented and has only male reproductive structures.

Which kind of worm is the scientist most likely studying?

a tapeworm
a flatworm
a roundworm
an earthworm

Answer:

The five senses collects informations from the surrounding and sends to the brain.

Explanation:

The brain through the help of the five senses helps a person to react to objects in their surroundings.

The five senses of touch sight, smell, hearing and taste all have their special sensors. These sensors are what picks messages from objects and sends to the brain. The brain then interprets the message received by the person from any of the senses.

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Answer:

A. When water evaporates, it leaves salt behind, increasing its salinity.

Explanation:

when water evaporates it only evaporates the water and leaves the salt behind thus the salinity increases since there is less water to salt. hope this helps! :D

The independent variable is the scientists most likely monitoring in their investigation for the investigate the effects of chronic acidification on a desert ecosystem - c. The daily production of sulfur dioxide by a nearby factory

Ecosystems result in chemical changes to soil and to surface waters and groundwater as a result of reduction of base cation or H⁺. The major effects of SO2 emission have on the soil system

An increase in contents of total sulfur, organic carbon, and exchangeable Al, leads to a lowering of pH and causes acidification of soil. Fog does not participate in acidification

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Answer: the daily production of sulfur dioxide by a nearby factory

Explanation: it was correct on the quiz

Answer:

There would be no production of high energy sugars in the plant.

Explanation:

Plants produce their food (autotrophism) in a process unique to them called PHOTOSYNTHESIS. Photosynthesis is the process whereby plants produce energy-storing sugars (glucose) in the presence of light from sun.

This photosynthetic process combines Carbon dioxide (CO2) and water (H2O) as reactants to form sugar (C6H12O6) and oxygen (O2) as products. The equation for photosynthesis is as follows:

6CO2 + 6H2O → C6H12O6 + 6O2

This means that water and carbon dioxide are strictly needed for the process of photosynthesis to occur in plants. Hence, if water or carbon dioxide were not available to plants, there would be no photosynthetic process and ultimately no production of high energy sugars.

Answer: Food consumption and production have a considerable impact on the environment.  Food production contributes

Explanation: , for example, to climate change, eutrophication and acid rain, as well as the depletion of biodiversity. It is also a considerable drain on other resources, such as nutrients, land area, energy, and water.

Answer:

This is possible.

Explanation:

The man's AB blood will dominate over the recessive O blood of the mother.  The possible outcomes shown by a Punnett Square are A and B children.

ans b

Explanation:

milk teeth are less than permanent teeth

Answer:

D. Overcast skies with strong winds.

Explanation:

clouds, high winds, and precipitation occurs if there is low air pressure is present. A low air pressure areas or regions is also known as cyclogenesis because when the intensity of low air pressure occurs, there is high chances of formation of storms or hurricanes in that region. A low air pressure system refers to a large mass of air that rises due to warmer land or water.

Answer:

fact: a statement that is objective or unchanging

informal: done in a way that is friendly or casual

formal: done in a way that is suitable, appropriate,

or based on guidelines

opinion: a statement that is subjective or based on

interpretation

topic: the main point of a given subject

Match each word with the phrase that best defines it.

1. Fact: a statement that is objective or unchanging

2. Informal: done in a way that is friendly or casual

3. Formal: done in a way that is suitable, appropriate, or based on guidelines

4. Opinion: a statement that is subjective or based on interpretation

5. Topic: the main point of a given subject

A phrase is a group of words or a singular word which functions as a grammatical unit. For example, the English expression "the very happy boy" is a noun phrase containing the adjective phrase "very happy".

It can be a single word or a complete sentence. Phrases are used to describe the people, things, or events.

There are following types of phrases. They are:

Thus, matching the following words with its phrases

1. Fact: a statement that is objective or unchanging

2. Informal: done in a way that is friendly or casual

3. Formal: done in a way that is suitable, appropriate, or based on guidelines

4. Opinion: a statement that is subjective or based on interpretation

5. Topic: the main point of a given subject

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Answer:

A 2008 study suggests that sympatric speciation has occurred in Tennessee cave salamanders.

Explanation:

Hope this helps

Answer:

29.0576 meters per second

Answer:

Explanation:

29 m/sec

Answer:

to convert ADP to ATP

= first option

Explanation:

so it must be the first option

since in order for this conversion the process stated in the first option must occur.

Answer:

Explanation:

A. The role of promoter in eukariotic gene expression is It is to bind transcription factors that regulate transcription initiation. This molecule is so important because control the binding of RNA polymerase to DNA. The promoter region may be short or very long; the longer the promoter is, the more protein binding space is available. A negative regulatory molecule has the possibilty to inhibit transcription at the promoter because these molecule block the binding of RNA polymerase to the promoter region, thus not allowing the initiation of transcription, in some particular cases the negative regulator binds to the lac repressor and will bind to the promoter in the same site where RNA polymerase would bind to.

B. Two process that occurs during RNA processing are RNA splicing and 5′ capping, 3′. RNA splicing is a process known for removing the introns from the pre-RNA and stuck back together the restant parts, exons. This process has as a goal form a mature mRNA that does not contain the intron sequences. RNA splicing has an effect on the variation of mRNA molecules because through a process called alternative splicing more than one mRNA can be made from the same gene. 

C. Even though they are not quite the same thing miRNA and negative regulatory molecules have the same role, which inhibits the translation and silence genes. They regulate gene expression by binding to the 3'-UTR of their target mRNAs and destabilizing the mRNA and translational silencing, repressing protein production. Even so, under specific circumstances, miRNA can activate translation or regulate transcription.

Answer:

The ecological effects of acid rain are most clearly seen in aquatic environments, such as streams, lakes, and marshes where it can be harmful to fish and other wildlife. As it flows through the soil, acidic rain water can leach aluminum from soil clay particles and then flow into streams and lakes

Explanation:

Hope this helped <3

Answer:

True

Explanation:

Answer:

The effiency decreases at higher altitudes

Explanation:

The higher up a person is on a mountain, the thinner the air is due to the lack of plants that can grow. An example of this is Mount Everest. At a certian point on the mountain, called the "Death Zone", the air is too thin to supply enough oxygen to the human body to survive. That's why they bring oxygen tanks with them on their adventures.

Answer:

DNA -> Gene -> Chromosome -> Genome

Explanation:

A genome is an organism's complete set of DNA including all of its genes. Each genome contains all of the information needed to build and maintain that organism. Chromosomes are the threadlike structures located inside the nucleus of animal and plant cells. A gene is the basic physical and functional unit of heredity.

The material and components that are vital for the growth and functioning of an organism that gets inherited from parent to offspring are the components of genetic information.

From simplest to complex they are arranged as:

DNA ⇒ Gene ⇒ Chromosome ⇒ Genome

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Answer:

a

Explanation:

The correct answer is C. Brain Stem.

The thalamus and other areas of the brain receive nerve signals from our senses through the brain stem. It is made up of the medulla, pons, and midbrain and is situated at the base of the brain.

The brain stem is in charge of regulating life-sustaining processes including breathing, heart rate, and blood pressure. It is also in charge of transmitting sensory data from the body to the thalamus, which subsequently transmits the data to the relevant parts of the brain.

Although the brain stem is the main pathway for nerve impulses from our senses, the hippocampus, corpus callosum, and thalamus are all important in the processing of sensory information.

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Answer:

Mountain lands provide a scattered but diverse array of habitats in which a large range of plants and animals can be found. At higher altitudes harsh environmental conditions generally prevail, and a treeless alpine vegetation, upon which the present account is focused, is supported. Lower slopes commonly are covered by montane forests. At even lower levels mountain lands grade into other types of landform and vegetation—e.g., tropical or temperate forest, savanna, scrubland, desert, or tundra.

The largest and highest area of mountain lands occurs in the Himalaya-Tibet region; the longest nearly continuous mountain range is that along the west coast of the Americas from Alaska in the north to Chile in the south. Other particularly significant areas of mountain lands include those in Europe (Alps, Pyrenees), Asia (Caucasus, Urals), New Guinea, New Zealand, and East Africa. The worldwide distribution of mountain lands is shown in Figure 1.

Figure 1: Worldwide distribution of mountain lands.

Explanation:

The answer is B because the new cells formed during asexual reproduction are formed by mitosis there is no genetic diversity.

Answer and Explanation:

To calculate the allele frequency in the population, we divide the number of occurrences of the particular allele by total number of all alleles in the population Allele frequencies can be represented as a decimal, a percentage, or a fraction.

Given the population of white (W) and black (w) sheep, 22 out of 244 sheep are black, the frequency of the dominant allele in the population = 222/244×100=

Answer:

meiosis

Explanation:

because Mendel's law of segregation states that: “During the formation of gamete, each gene separates from each other so that each gamete carries only one allele for each gene.” Same applies to meiosis the chromosomes separate.

Answer: pituitary gland

Answer:

D)  omnivores.

Explanation:

The bird consumes both plants and arthropods

Answer:

omnivores

Explanation:

omnivorous consumers. they eat other animals like snails and worms but they also eat berries.