Answer:
c. Bb
2-a. 0%
2b. 50%
3. 50%
Explanation:
where in the fossil record would you expect to see older common ancestors
How would gradualism persent in the fossil record
Answer:
hii
Explanation:
what are you doing
how are you doing
Please help no ones helping or giving real answers... will mark branliest
Answer:
B
A
D
Explanation:
In what ways can ecosystems be analyzed by the levels of organization within them?
Answer:
nniiii him jjijjjbjbhbijjhh oj
Why is the structure of a
nucleosome so important?
Answer:
In eukaryotes, nucleosomes play major roles in chromatin organization and gene expression
Explanation:
In eukaryotic organisms, chromosomal DNA is packaged with the help of proteins called 'histones' to form chromatin. The nucleosomes represent the basic packing units of the chromatin. Each nucleosome is composed of a histone octamer containing each two histones H2A, H2B, H3 and H4 wrapped around by 147 bp of DNA. Nucleosomes act as scaffolds to form higher-order chromatin structures (i.e., 30-nm chromatin fibers and condensed chromosomes). Moreover, nucleosome histone proteins can be chemically modified at defined amino acid residues, and thus nucleosomes also provide an epigenetic layer of information that can promote or inhibit gene expression.
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Answer: B
Explanation:
1. Animals are _____ and hence they depend on other organisms (plants and other
animals) for their food.
Animals are consumers and hence they depend on other organisms (plants and other animals) for their food.
in which does light travel fastest
Light waves do not need a medium in which to travel but sound waves do. Explain that unlike sound, light waves travel fastest through a vacuum and air, and slower through other materials such as glass or water.
Answer:
light travel faster in Vacuum and Air
Sedimentation and erosion lead to what characteristic of streams?
A]meandering
B]channeling
C]reduced flow
D]increased salinity
Answer:
b. channeling
Explanation:
PLEASE HELP
" Your alien friend from planet Xenon is visiting and wants to learn how to breed pea plants. You show your friend a recent batch of pea plants with purple flowers that you grew by crossing plants that had purple flowers with plants that had white flowers. Your alien friend is still confused as to why all your plants have purple flowers. How would you explain the most, simplest way possible, what happened?
Enter your answer in the space provided. "
Answer:
well you mixed two different types or colors of flowers
Explanation:
Write 3 sentences about what you learned yesterday about phases of the moon.
Answer:
1) There are 8 main phases of the moon: new moon, waxing crescent, first quarter, waxing gibbous, full moon, waning gibbous, third quarter, and waning crescent.
2) A full moon occurs about once a month. (every 29.5 days to be exact)
3) The phases of the moon are caused by the light from the sun and the moon's orbit around the Earth.
a point mutation changes the DNA sequence CGA to CGT but the same protein is still produced. which point mutation occurred
Answer: The correct answer is silent mutation . In this type of mutation there is no change in the phenotype of the individual which means there occurs a mutation where two different amino acid codes for the same protein .There are sequences present in the body where a point mutation occurs but the protein formed is still the same .If you will see the genotype you can easily observe that the amino acid sequence is different but the protein formed is same. Example AAA codes for lysine and the amino acid lysine is formed by AAG .
HOPE THIS HELPS
Answer:
silent mutation
Explanation:
hope this helps
Long tail X short tail + all long.
Mate two of these long tailed mice together and you get 3/4 long, 1/4 short.
C. Incomplete dominance
E. Dihybrid cross
A. Dominant/recessive gene
B. Codominance
D. Lethal gene
Can someone help me with this question?
Answer:
the answer is A
Explanation:
hope it helps!!!
Physical description of a cell membrane?
Answer:
Cell membrane
Explanation:
A cell membrane is basically a protection of the cells. It controll what goes in and out of the cell and separates the interior of the cell from the outside environment. they contain receptors and channels that allow specific molecules, such as ions, nutrients, wastes, etc that mediate cellular activities to pass between organelles.
The image below represents a satellite view. What type of land features are pictured in this image?
Canyons
Hills
Volcanoes
Ocean
Answer:
Canyons
Hope this helps :) Have a wonderful rest of your day!
A canyon is a small, deep valley with cliff-like sides. The Spanish word caon, which meaning “tube” or “pipe,” is where the term “canyon” originates. Thus, option A is correct.
What Canyons type of land features represented?A deep valley that has been carved into the surface of the earth over a long period of time by erosion from a flowing river is referred to as a canyon.
It is also referred to as a gorge and typically features rocky cliffs and very steep walls. One of the most well-known instances is the Grand Canyon, which the Colorado River carved out.
Canyon: A deep valley with steep walls and a V-shape created by a river slicing through hard rock. These valleys are common in the upper reaches of rivers, where the stream's fast, strong current rapidly digs the valley. Gorges are smaller valleys with a similar aspect.
Therefore, Although “gorge” is frequently used interchangeably with “canyon,” a gorge is nearly invariably narrower and steeper.
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A watershed, also known as a drainage basin, is an area of land where water drains to a central point like a lake river or an ocean. natural vegetation in the landscape, helps maintain the natural flow of Regine of water and rapid change in water level in lakes and wetlands. imagine a position of a wetland that has changed as scenes in the image. predict what will happen to the natural flow of water is natural vegetation as replaced by impervious surfaces
A) groundwater flows increase to its endpoint causing flooding
B) runoff will increase and less water will penetrate the soil to become groundwater
C) groundwater will puddle up and remain in one place instead of flowing to a central point
D) impervious surfaces such as roads and parking lots will divert water flow and it will not reach its endpoint
Answer:
B) runoff will increase and less water will penetrate the soil to become groundwater.
D) impervious surfaces such as roads and parking lots will divert water flow and it will not reach its endpoint
Explanation:
The runoff will increase and less water will penetrate into the soil to become groundwater if natural vegetation is replaced by impervious surfaces. The natural vegetation helps to lower the speed and intensity by absorbing large amount of water. Due to this absorbing, there is an increase occur in the concentration of groundwater level which increases underground water reserves for the coming generations. These impervious surfaces also act as a barrier that diverts water and prevents the water to reach to its ending point.
B is the correct answer.
An ecosystem experiences a ten year drought. As a result of the
drought, many plant and animal species are not able to survive.
What will be the effect on the biodiversity and sustainability of the
ecosystem?
A. Increased biodiversity and increased sustainability
B. Decreased biodiversity and increased sustainability
C. Increased biodiversity and decreased sustainability
D. Decreased biodiversity and
decreased sustainability
Please help I need to be done with this TODAY.
Answer:
D. Decreased biodiversity and decreased sustainability
Explanation:
The correct answer is Decreased biodiversity and decreased sustainability.
Weak sustainability is a concept inside environmental economics that states that 'human capital' can substitute 'herbal capital'. It is primarily based totally upon the paintings of Nobel Laureate Robert Solow, and John Hartwick.
Biodiversity loss refers back to the decline or disappearance of organic diversity, understood because of the style of residing matters that inhabit the planet, its distinctive ranges of the organic corporation, and their respective genetic variability, in addition to the herbal styles found in ecosystems.
What is an ecosystem?An environment is a geographic region wherein plants, animals, and different organisms, in addition to climate and landscape, paintings collectively shape a bubble of life. Ecosystems incorporate biotic or residing, parts, in addition to abiotic elements, or nonliving parts. Biotic elements consist of plants, animals, and different organisms although related, sustainable improvement and sustainability are distinctive concepts.
Hence clear that Decreased biodiversity and decreased sustainability are correct.
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Normal red blood cells slide easily through narrow blood vessels. In sickle cell disease, many red blood cells change to a crescent shape like a slender moon. Crescent-shaped blood cells cause blockages in blood vessels. These blockages decrease the transport of oxygen. People with sickle cell disease often have sharp pains due to the lack of oxygen in parts of the body. The sickle cell version of the gene that causes sickle cell disease is recessive. Suppose that two parents with no symptoms have a child with sickle cell disease. What genes did the child inherit from the parents?
Answer:
please give me brainlist and follow
Explanation:
Normally, the flexible, round red blood cells move easily through blood vessels. In sickle cell anemia, the red blood are shaped like sickles or crescent moons. These rigid, sticky cells can get stuck in small blood vessels, which can slow or block blood flow and oxygen to parts of the body.
Answer:
alleles
Explanation:
1. I got the answer right
2. I learned about it in class
A can of antifreeze spills near a clump of Dryopteris dilatata, a type of fern. The chemical seeps into the ground, endangering the plant's roots. The plant roots grow as far away from the chemical as possible to absorb only fresh water and minerals.
During this process, the roots primarily work in conjunction with which system? a) The immune system to defend against the toxic chemicals
b) The vascular system to reduce the absorption and transport of toxic chemicals
c) The reproductive system to make more root cells
d) The digestive system to create enzymes that break down the toxic chemicals
Answer:D
Explanation:
I got it right on my test
Dryopteris dilatata is in family Dryopteridaceae. The movement of plant away from spill the roots primarily work in conjunction with vascular system to reduce the absorption and transport of toxic chemicals.
What is Dryopteris dilatata?Dryopteris dilatata is a fern mainly located in deciduous or semi-evergreen family, native of Europe.
It can be grown in most cool, moist and light shaded areas. It is also called as broad buckler-fern.
As to avoid antifreeze spills, the plant roots grow far away from the area of spill. During this process roots primarily work with vascular system to reduce absorption and transport of toxic chemicals.
Thus, the correct option is b.
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Which of the following is NOT an example of natural selection?
A. Plants with thorns are less likely to be eaten by herbivores than other members of the same species that lack thorns.
B. Bacterial populations in hospitals develop resistance to drugs used to combat infection by them.
C. Scientists breed cows that give greater amounts of milk than their ancestors.
D. Fruit fly larvae with an enzyme to break down alcohol are better able to feed on fermenting fruit than those that lack the enzyme.
Answer:
The correct answer would be - C. Scientists breed cows that give greater amounts of milk than their ancestors
Explanation:
Natural selection is the process of adapting according to the new changes in condition and change accordingly to survive. So the individuals of organisms that are better and adapt faster to survive and reproduce better than others are the result of natural selection.
Plants developed thorns so they can be avoided by predators is the adaption and example of natural selection. Similarly, bacterial populations adapt and develop resistance to the drug. Fruit fly larva developed and adapt as well. Breeding cows for more amount of milk than ancestors by scientists is not natural selection.
Sentence Arrange s— Put the steps of DNA replication in order by writing a number in the space before each statement.
Two new molecules of DNA are created.
_____
DNA polymerase attach the free-floating nucleotides to the exposed nitrogen bases.
_____
Helicase begins to break the hydrogen bonds between nitrogen bases.
_____
Cell starts into the mitosis phase of the cell cycle.
_____
Free floating nucleotides pair up with exposed nitrogen bases.
_____
Complete the statement guanine, cytosine, and thymine are the four nitrogen bases.
_____
In DNA, always forms hydrogen bonds with guanine.
_____
The sequence of carries the genetic information of an organism
_____
The process of produces a new copy of an organism's genetic information.
_____
The double coiled shape of DNA is called a
_____
Answer:
1. Cell replication starts into the mitosis phase of the cell cycle
2. Helicase begins to break the hydrogen bonds between nitrogen bases
3. The double coiled shape of DNA is called double helix
4. DNA polymerase attach the free-floating nucleotides to the exposed nitrogen bases.
5. Free floating nucleotides pair up with exposed nitrogen bases
6. Guanine, Adenine, cytosine and thyamine are the four nitrogen bases
7. In DNA, cytosin always forms hydrogen bonds with guanine.
8. The sequence of DNA carries the genetic information of an organism
9. The process of mitosis produces a new copy of an organism's genetic information.
10. Two new molecules of DNA are created
Explanation:
Through this replication process two complete molecules of DNA are created from one DNA molecule, with a double helix structure. This event is important for every organism in order for they to grow, reproduce and repair.
There are many proteins and enzymes that take part in all these steps.
The correct order of DNA replication is:
1. Cell replication starts into the mitosis phase of the cell cycle.
2. Helicase begins to break the hydrogen bonds between nitrogen bases.
3. The double coiled shape of DNA is called a double helix.
4. DNA polymerase attaches the free-floating nucleotides to the exposed nitrogen bases.
5. Free-floating nucleotides pair up with exposed nitrogen bases.
6. Guanine, Adenine, cytosine and thymine are the four nitrogen bases.
7. In DNA, cytosine always forms hydrogen bonds with guanine.
8. The sequence of DNA carries the genetic information of an organism.
9. The process of mitosis produces a new copy of an organism's genetic information.
10. Two new molecules of DNA are created.
What is DNA replication?
DNA replication is the process by which a molecule of DNA is duplicated.
When a cell divides, it must first duplicate its genome so that each daughter cell winds up with a complete set of chromosomes.
Thus, the correct order of DNA replication is that.
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Where is the question!?
Which statement describes the relationship between bond strength and the
melting and boiling points of a substance?
A. As the force between the particles increases, the melting and
boiling points also increase.
B. As the force between the particles increases, the melting point
increases and the boiling point decreases.
C. As the force between the particies increases, the melting point
decreases and the boiling point increases
D. As the force between the particles increases, the melting and
boiling points decrease.
Answer:
D
Explanation:
hope this helps:))))))))))
Which of the following is possible genotype for the offspring?
Answer:
a or d
Explanation:
i believe it is one of those
Answer:d. long tailed, stripped fur
Explanation:
Read the excerpt from How Hurricanes Form.
Hurricanes are often compared to engines. Just like engines, they need a type of fuel. Hurricanes form over warm ocean waters near the equator. For hurricanes, their fuel is warm, moist air. When hurricanes form, the warm, moist air above the ocean rises upward from close to the surface of the water. Because the warm air rises, it results in less air under the surface of the water. This area with less air is known as an area with low pressure.
Air from areas surrounding this low pressure space pushes in to the area. This fills the low pressure area. The new air in this space becomes warm and moist and also rises. As the air continues to rise, the air surrounding the space swirls in to take its place. This process of air swirling in to replace air that has risen continues. Eventually, the moisture in the air forms clouds.
The wind and the clouds that form create a system. A system is a pattern of weather. The system of clouds and winds continues to spin and grow. The water evaporating from the ocean's warm surface acts as the fuel, which is what helps this spinning and growing. The system rotates faster and faster until the eye of the storm forms in the center area. Ironically, the eye of the storm is the calmest part, and it has very low air pressure. The higher pressure above the hurricane continually flows down into the eye.
Select the detail from the excerpt that supports the main idea of this part of the article. (2 points)
a
Hurricanes are often compared to engines.
b
The eye of the storm is the calmest part of the storm and has very low air pressure.
c
The water evaporating from the ocean's warm surface acts as the fuel.
d
This process of air swirling in to replace air that has risen continues.
Answer: I think its C
Explanation:
How is energy and forces related
Una persona sana necesita 1500 cal diarias para mantener su peso y su actividad rítmica normal ¿Cuántos J se obtendrá en 18,5 horas?
Answer:
4838J se requieren en 18.5 horas
Explanation:
Para resolver esta pregunta debemos, primero, hallar la cantidad de calorías necesarias para 18.5h (Ya sabemos que para 24 horas se necesitan 1500 calorías). Después, este resultado debemos convertirlo a Joules (1cal = 4.184J):
Calorías en 18.5h
18.5h * (1500cal / 24h) = 1156.25cal son requeridas en 18.5 horas
Joules requeridos:
1156.25cal * (4.184J / 1cal) =
4838J se requieren en 18.5 horasA science class is doing an experiment on how light affects the growth of plants. One set of plants is placed under a special light, a second set
of plants is placed in the dark. A third set of plants is left under normal room lights. The class measures and charts each plant's growth for a
week.
In this experiment, the third set of plants that was placed under normal room lights would be identified as the
Answer:
control group
Explanation:
5. How is density affected when the depth increases?
Answer:
As you go deeper in depth, pressure increases. Density = mass/volume. The layers beneath us due to pressure get packed to the point of being very dense.
transforms one strand of nucleic acid into two sets so that each set may be passed on to daughter cells in cell division
Answer:
If you`re asking what the term for this definition is, it`s DNA replication
Explanation:
Answer:
DNA Replication
Explanation:
In molecular biology, DNA replication is the biological process of producing two identical replicas of DNA from one original DNA molecule. DNA replication occurs in all living organisms acting as the most essential part for biological inheritance. Additionally, Walther Flemming's drawing of chromosomes. This process involves replication of the cell's chromosomes, segregation of the copied DNA, and splitting of the parent cell's cytoplasm. The outcome of binary fission is two new cells that are identical to the original cell.