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Answer:

(Pteridophyta) of vascular plants (such as a fern) that have roots, stems, and leaves but lack flowers or seeds

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Answer: A member of the  Pteridophyt

Explanation:

a division of plants including  ferns and their allies.

vaccines cause the production of specific molecules that will react with and destroy

Answer:

XbY

Explanation:

because the question asks genotype of a male, the chromosomes would be XY, so XBX and XbXb can be eliminated leaving only XBY and XbY. XBY is incorrect because the question states that colorblindness is represented by lowercase b, so the correct answer is XbY.

Answer: plateaus

Explanation: there not canyons so you can cross that off and its not the dunes nor the deltas so if you look at the picture you can tell it is the plateaus

Rivers in the area weather and erode the land, forming a mouth in this area.

It is the place where a stream of water, such as a river, empties. Thus, a river can have as its mouth another river, a large lake, a pond, a sea or the ocean.

With this information, we can conclude that the rivers in the area weather and corrode the land, forming a mouth in this area.

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Ecologists study both biotic and abiotic factors and how they interact. Therefore, ecologists often use methods and data from other areas of science, such as geology, geography, climatology, chemistry, and physics.

Abiotic factors refer to non-living physical and chemical elements in the ecosystem. Abiotic resources are usually obtained from the lithosphere, atmosphere, and hydrosphere. Examples of abiotic factors are water, air, soil, sunlight, and minerals

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Through geology and geography, we can study biotic and abiotic factors within an ecosystem.

The interactions between biotic factors, such as organisms like flora and fauna, and abiotic factors.

For example, all animals (biotic factors) breathe in oxygen (abiotic factor). All plants (biotic factor) absorb carbon dioxide (abiotic factor) and need water (abiotic factor) to survive.

Thus, geology and geography, are the two ways to study biotic and abiotic factors within an ecosystem.

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Answer:

first one is active transport sorry cant help with the rest

Explanation:

Answer: time

Explanation:

Answer:

Solvent

Explanation:

Answer:

Explanation:

dnanananans

Answer:

It’s D

Explanation:

I jus did it.

Answer:

1. Both

2. Prokaryotes

3. Prokaryotes

4. Eukaryotes

5. Both

6. Both

7. Both

8. Eukaryotes

Answer:

Bacterial cells come in different shapes: from rods, to spheres, to spirals

Explanation:

Answer:

False

Explanation:

Pluripotent stem cells are master cells. They're able to make cells from all three basic body layers, so they can potentially produce any cell or tissue the body needs to repair itself.

Pluripotent stem cells have the ability to undergo self-renewal and to give rise to all cells of the tissues of the body (but not the placenta).

Answer:

It's insoluble

Explanation:

Starch is better than glucose for storage because it's insoluble.

Insoluble meaning it can't be dissolved.

Answer:

Soils are composed of mixtures of mineral and organic materials, but are classified according to the size of their mineral particles. The three main texture groups are sandy, silty, and clay.

Sandy soil contains particles that can be seen with the naked eye and feels gritty when rubbed between the thumb and forefinger. Sandy soils will generally not stick together when wet.

Silty soil contains particles, which are smaller than sand particles but larger than clay particles. Silt feels powdery when rubbed between the thumb and forefinger. Silty soil sticks together when wet, but will not hold its shape after it is dry.

Clay soil contains the smallest particle size. Clay particles form a sticky soil when wet and will generally hold a shape after drying. Soils are rarely composed of just sand, silt, or clay. They are usually a mixture of the three with a larger percentage of one size of particles.

Answer:  

Depending upon the average grain-size and the conditions under which soils are formed and deposited in their natural state, they may be categorized into following types on the basis of their structure: In the grain-size classification, soils are designated according to the grain-size or particle-size. The more common classification systems are enlisted below: Geological Classification

Classification by Structure

Classification based on Grain-size

Unified Soil Classification System

Preliminary Classification by soil types

Based on the agencies responsible for their present state, soils may be classified under following types:  Residual Soils

Transported Soils:

Alluvial or sedimentary soils

Aeolian soils

Glacial soils

Lacustrine soils

Marine soils.

Then you have inorganic and organic soils.

Explanation:

Answer: mitochondria

Explanation: ur welcome

Answer:

thus , protons and neutrons are no more indivisible than atoms are ; indeed , they contain still smaller particles , which are called quarks . quarks are as small as or smaller than physicists can measure

Explanation:

1. Cell starts into mitosis phase of the cell cycle.

2. Helicase begins to break the hydrogen bonds between the nitrogen bases. (The double helix has to be unwound in order to expose the nucleotides)

3. DNA polymerase attach the free-floating nucleotides to the exposed nitrogen bases. (this allows a new DNA strand to be made on the existing one)

4. Free floating nucleotides pair up with exposed nitrogen bases (this is what really builds the new strand, based around the template strand)

5. Two new molecules of DNA are created

Statements:

Adenine

Cytosine (Car in the Garage, Apple in a Tree is a good trick to know how they pair)

DNA

Replication

Double helix

Answer:

Codominance

Explanation:

Both parents carry a dominant trait, so the offspring will have a coat of main colour, and also some hairs of another colour.

Answer:

Natural Selection in Real Time

"When we made the comparison between the size of the offspring generation and the population before selection, we found a measured, evolutionary response had taken place and it was almost identical to what we had predicted."

-Peter Grant

Darwin thought that evolution took place over hundreds or thousands of years and was impossible to witness in a human lifetime. Peter and Rosemary Grant have seen evolution happen over the course of just two years.

The Grants study the evolution of Darwin's finches on the Galapagos Islands. The birds have been named for Darwin, in part, because he later theorized that the 13 distinct species were all descendants of a common ancestor. Each species eats a different type of food and has unique characteristics developed through evolution. For example, the cactus finch has a long beak that reaches into blossoms, the ground finch has a short beak adapted for eating seeds buried under the soil, and the tree finch has a parrot-shaped beak suited for stripping bark to find insects.

The Grants have focused their research on the medium ground finch, Geospiza fortis, on the small island of Daphne Major. Daphne Major serves as an ideal site for research because the finches have few predators or competitors. (The only other finch on the island is the cactus finch.) The major factor influencing survival of the medium ground finch is the weather, and thus the availability of food. The medium ground finch has a stubby beak and eats mostly seeds. Medium ground finches are variable in size and shape, which makes them a good subject for a study of evolution.

The first event that the Grants saw affect the food supply was a drought that occurred in 1977. For 551 days the islands received no rain. Plants withered and finches grew hungry. The tiny seeds the medium ground finches were accustomed to eating grew scarce. Medium ground finches with larger beaks could take advantage of alternate food sources because they could crack open larger seeds. The smaller-beaked birds couldn't do this, so they died of starvation.

In 1978 the Grants returned to Daphne Major to document the effect of the drought on the next generation of medium ground finches. They measured the offspring and compared their beak size to that of the previous (pre-drought) generations. They found the offsprings' beaks to be 3 to 4% larger than their grandparents'. The Grants had documented natural selection in action.

While beak size is clearly related to feeding strategies, it is also related to reproduction. Female finches tend to mate with males that have the same size beaks. These factors together can add to the development of new species.

The Grants return each year to Daphne Major to observe and measure finches. They have been collecting data on the finches for over 25 years and have witnessed natural selection operating in different ways under different circumstances.

Answer:

D

Explanation:

The reaction force is the force of the ball on the bat

Answer:

The answer is B

Explanation:

According to Newton's third law, for every action, there is an equal and opposite reaction. In other words, an interaction between two objects results in the two objects exerting forces upon each other.

Answer:

Cellular Respiration: C6H12O6 + 6O2 → 6CO2 + 6H2O.

Explanation:

Answer:A or the more twins they are

Explanation:

Answer:

The kinetic energy of a moving object is directly proportional to its mass and directly proportional to the square of its velocity.

Explanation:

The mass-kinetic energy relationship is ; Directly proportional

The Kinetic energy of an object is directly proportional because an increase in the kinetic energy of a moving object leads to an increase in the mass of the object and also to the increase in the velocity of the object squared.

i.e. K.E ( kinetic energy ) = [tex]\frac{1}{2} mv^2[/tex]

Hence we can conclude  that the mass-kinetic energy relationship is directly proportional.

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Answer:

Insects are protected by a chitin exoskeleton. The Venus flytrap cracks this protective shell using special digestion enzymes that are produced once the sensory hairs register a stimulus. It will ebb away if the hairs are not further stimulated.

Answer:

I do believe that the Venus flytrap is a predator because it is a carnivorous plant.  The plant's trap is a single large leaf with trigger hairs.

Explanation:

A strand of RNA with the sequence "AUUGCGCGAA" has been transcribed from a DNA strand with the sequence "TAACGCCTT". Thus, the correct option is C.

Transcription is the process of formation of mRNA from the DNA in the nucleus of cell. The machinery involving all the enzymes and nucleotides are present in the nucleus for the development of mRNA. mRNA is the messenger RNA which is transcribed from DNA.

The sequence of mRNA formed from the DNA in a cell is complementary to the leading strand of the DNA in which only the thymine residues are replaced by the uracil residues. Adenine base pairs with uracil and thymine residues base pairs with adenine residues. Cytosine residues base pairs with guanine residues and vice versa.

Thus, the sequence of DNA from which mRNA has been synthesized is "TAACGCCTT".

Therefore, the correct option is C.

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Answer:

The mushrooms act as decomposers, there are many other species that also does this such as worms

Answer:

dont question the impossible

Explanation:

Answer:

That the purple trait is dominant and the purple pea plant has a gene type of PP and the white flower has a gene type of pp