Answer:
You can predict geno/pheno types using a Punnet square.
Explanation:
Some traits appear more often because they are dominant. Dominant traits win out over recessive genes.
explain step by step where the DNA is located and what equipment they will need to observe the DNA
PLEASE BE QUICK
Gel electrophoresis is a technique used to separate DNA fragments according to their size.
DNA samples are loaded into wells (indentations) at one end of a gel, and an electric current is applied to pull them through the gel.
DNA fragments are negatively charged, so they move towards the positive electrode. Because all DNA fragments have the same amount of charge per mass, small fragments move through the gel faster than large ones.
When a gel is stained with a DNA-binding dye, the DNA fragments can be seen as bands, each representing a group of same-sized DNA fragments.
Introduction
A student outlined the following steps of the lytic cycle of bacteriophage infection of bacterial cells:
1. Virus lands on host cell.
2. Virus injects the capsid containing its DNA into the cell.
3. Viral DNA is used by bacteria to make vinis parts.
4. New viruses are assembled in the bacterial cell.
Choose all (3) that are correct. Cells become specialized:
A. immediately after conception occurs.
B. from stem cells.
C. in order to perform different functions.
D. when certain genes are expressed while others are not
Answer:
B. from stem cells.
C. in order to perform different functions.
D. when certain genes are expressed while others are not
Explanation:
A is the only one not correct because conception happens in meiosis which is a whole different process! Hope this helps :)
Answer: A
Explanation:
The gas giants all have many moons and rings
True or false
Answer:
true.
Explanation:
I have a freind that works at nasa and she said it is true.
suggest the consequences of having a diet that lacks fresh fruits and fibre .
Answer:
unbalanced diet leds to deteriorated health .
Explanation:
The energy stored in food molecules in living cells is gradually released in a series of linked chemical reactions called a ____________.
help me pleaaaasseee!!!?? explain how locusts affects crop production and how it can be prevented...
I think this will help
Explanation:
good luck. :)
Salmonella bacteria is commonly found on fruit skins.
True
False
Answer:
no it's false because salmonella bacteria is commonly found undercooked pork.
Answer:
False
Explanation:
How have plants evolved?
Give at least 5 examples.
Answer:
Over time, plants had to evolve from living in water to living on land. In early plants, a waxy layer called a cuticle evolved to help seal water in the plant and prevent water loss. ... To allow the plant to retain water and exchange gases, small pores (holes) in the leaves called stomata also evolved (Figure below)
Explanation:
1 DNA evidence suggests that the first eukaryotes (green plants) evolved from prokaryotes (through endosymbiotic events) between 2500 and 1000 million years ago. ... Cyanobacteria have a close evolutionary relationship with eukaryotes. They have the same photosynthetic pigments as the chloroplasts of algae and land plants.
2Plants adapt their growth, including key steps in their life cycle such as germination and flowering, to take advantage of environmental conditions. ... All land plants evolved from an aquatic ancestor, and it was after colonisation of the land that the gibberellin mechanism evolved.
3 700 million years ago
The researchers found that land plants had evolved on Earth by about 700 million years ago and land fungi by about 1,300 million years ago — much earlier than previous estimates of around 480 million years ago, which were based on the earliest fossils of those organisms.
4 The earliest trees were tree ferns, horsetails and lycophytes, which grew in forests in the Carboniferous period. The first tree may have been Wattieza, fossils of which have been found in New York State in 2007 dating back to the Middle Devonian (about 385 million years ago).
5 Plants adapt to their environment from necessity. Plants may also adapt by growing lower and closer to the ground to shield themselves from wind and cold. Desert environments may have some of the following adaptations, these help the plant to conserve food, energy and water and still be able to reproduce effectively.
giveme brainlyest
Which factor can cause secondary succession?
clear cutting
glacial melting
competition
predation
Answer:
A
Explanation:
Clear cutting can cause secondary succession. Therefore, option (A) is correct.
Secondary succession is a type of ecological succession that occurs after a disturbance, such as a fire, flood, or clear-cutting of a forest.
Clear cutting refers to the process of removing all trees in an area, leaving behind a bare landscape. This can disrupt the natural balance of the ecosystem and create an opportunity for secondary succession to occur. After clear cutting, the soil is often left exposed and vulnerable to erosion, which can alter the physical and chemical properties of the soil. This can affect the types of plants and animals that can grow in the area, leading to a new community of organisms that gradually develops over time.
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HURRY 10 POINTS
How are S waves and P waves similar?
They shake the ground.
They travel through liquids.
They arrive at the same time.
They vibrate from side to side.
Answer:
answer B D C E
Can you pls help me. Question: Water is moved in surface currents in the ocean. Identify the source of energy for surface corrects and describe the energy transfer between water molecules occurring as water moves in the ocean.
Answer:
Well the type of energy used for movement is Kinetic Energy, (I'm sorry if this doesn't help I'm not great)
Why is one side of the moon called "the dark side of the moon"?
Answer:
Because much like the Earth, only one side of the Moon receives light, and the side receiving no light is called, "the dark side of the moon."
Explanation:
What are reef producing coral called? What is the coral reef composed of? How are they created? (Site 1)
Answer:
Reef producing coral is called hermatypic corals.
Coral reef is composed of hundreds to thousands of polyps which are tiny coral creatures.
Coral reefs are created when free-swimming coral larvae are attached to the hard surfaces or submerged rocks.
Explanation:
Reef producing coral is called hermatypic corals.
The coral reef is composed of hundreds to thousands of polyps which are tiny coral creatures. Each of the polyps secretes calcium carbonate.
Coral reefs are created when free-swimming coral larvae are attached to the hard surfaces or submerged rocks. These hard surfaces are basically along the edges of islands or continents.
an entire DNA molecule is split down the middle and the bases on each side are used as a pattern for a new strand when DNA is
A.transcribed
B.mutated
C.complemented
D.replicated
Answer:
A
Explanation:
Hope this is helpful!!
Which of the following is NOT a method that has been used to predict earthquakes?
Answer:
Watching changes in weather patterns (Answer Choice 3)
Explanation:
Atmospheric weather cannot indicate impending earthquakes, while the processes described in the other answer choices can.
Answer
Watching changes in weather patterns (3)
please help! ASAP giving 20 points!
Shelly is in Hawaii on vacation with her family. What type of rock would she most likely find on the surface of Hawaii?
Answer:
igneous rocks
Explanation:
since Hawaii is so densely populated with volcanoes, the probability of finding rocks due to volcanic eruptions would be very likely compared to sedimentary or metamorphic.
can yeast replace itself with new cells
Answer: Yes
Explanation:Most yeasts reproduce asexually by budding: a small bump protrudes. A few yeasts reproduce by fission, the parent cell dividing into two equal cells.
You want to determine what vehicle will get you to school in the fastest amount of time. Each day at 6:30am, you drive a different vehicle: a Ferrari, a
Nissan 350ZX, a Mazda RX8, and a Neon SRT4. Your results state that the Ferrari takes you the least time to get to school. The dependent variable in
this experimentis
A.the time that you leave each day (6:30am)
B.the type of vehicle
C.the time that it takes you to get to school
D.the route that you take each day
Answer:
The correct answer would be - option C. the time that it takes you to get to the school.
Explanation:
The dependent variable is the factor or variable in any research or experiment is the variable that depends on the independent variable which means it changes with the change in the independent variable.
Here the time the different vehicle takes to get to the school is a dependent variable as it depends on the fact that which vehicle is using and changes with the change in the type of vehicle.
I’m not sure if I’m anywhere close to right on this, can someone simply review it and give me feedback? Please! Giving all my points
Answer:
Your 100% Correct Im an advanced scientist in highschool!
Well Done! Also Im new so sorry if you done trust.
Explanation:
What phase is the moon in when it is not visible in the night sky?
What is meant by “concentration”? How can you increase the concentration of salt (electrolytes) in a solution of water? How can you decrease the concentration of electrolytes in a solution?
Answer:
The concentration of a substance is the quantity of solute present in a given quantity of solution.
Explain why scientists classify organisms and how scientists classify species.
Which change in the earth's atmosphere allowed organisms to live on land?
A) a collision with a comet
B) the development of the ozone layer
C) a strong burst of particles from the sun
D) the absorption of carbon dioxide by oceans
Explanation:
hi it's my first answer lol btw the answer is
D :)
1. the process by which organisms produce new organisms of the same type ____________________
2. a method of reproduction in which all the genes passed on to the offspring come from a single individual or parent
______________________________
3. a method of reproduction that involves two parents producing offspring that
are genetically different from either parent _________________________
4. an organism that is genetically identical to the organism from which it was produced ________________________
5. the male sex cell __________________
6. a sex cell produced by a female __________________________
7. an egg or sperm cell; a sex cell
8. the cell division process that divides the cell’s nucleus into two, each with a complete set of genetic material from one parent
cell ___________________________
9. the cell division process that results in the production of sex cells (sperm and egg)
________________________________
10. the process that combines a sperm cell and an egg cell _____________________
11. the cell that results from the joining of the egg and sperm
_________________________________
12. the process that transforms developing cells into specialized cells with
different structures and functions
__________________________________
13. the organ of the human female reproductive system that produces an egg cell, the female gamete
____________________________________
14. female reproductive hormone (either one) __________________________
15. female reproductive hormone (either one)
_________________________
16. the organ, in female animals, where the embryo develops into a fetus _________________________________
17. the organ that enables nutrients and oxygen to pass from the mother’s blood to the fetus, and waste products to pass from the fetus to the mother’s blood
________________________________
18. the male reproductive organ, that produces sperm and the hormone testosterone
________________________________
19. a hormone associated with male sexual development and reproduction
________________________________
20. structure in female where fertilization occurs______________________________
Answer:
Sexual reproduction was an early evolutionary innovation after the appearance of eukaryotic cells. The fact that most eukaryotes reproduce sexually is evidence of its evolutionary success. In many animals, it is the only mode of reproduction. And yet, scientists recognize some real disadvantages to sexual reproduction. On the surface, offspring that are genetically identical to the parent may appear to be more advantageous. If the parent organism is successfully occupying a habitat, offspring with the same traits would be similarly successful. There is also the obvious benefit to an organism that can produce offspring by asexual budding, fragmentation, or asexual eggs. These methods of reproduction do not require another organism of the opposite sex. There is no need to expend energy finding or attracting a mate. That energy can be spent on producing more offspring. Indeed, some organisms that lead a solitary lifestyle have retained the ability to reproduce asexually. In addition, asexual populations only have female individuals, so every individual is capable of reproduction. In contrast, the males in sexual populations (half the population) are not producing offspring themselves. Because of this, an asexual population can grow twice as fast as a sexual population in theory. This means that in competition, the asexual population would have the advantage. All of these advantages to asexual reproduction, which are also disadvantages to sexual reproduction, should mean that the number of species with asexual reproduction should be more common.
However, multicellular organisms that exclusively depend on asexual reproduction are exceedingly rare. Why is sexual reproduction so common? This is one of the important questions in biology and has been the focus of much research from the latter half of the twentieth century until now. A likely explanation is that the variation that sexual reproduction creates among offspring is very important to the survival and reproduction of those offspring. The only source of variation in asexual organisms is mutation. This is the ultimate source of variation in sexual organisms. In addition, those different mutations are continually reshuffled from one generation to the next when different parents combine their unique genomes, and the genes are mixed into different combinations by the process of meiosis. Meiosis is the division of the contents of the nucleus that divides the chromosomes among gametes. Variation is introduced during meiosis, as well as when the gametes combine in fertilization.
Explanation:
By the end of this section, you will be able to:
Explain that variation among offspring is a potential evolutionary advantage resulting from sexual reproduction
Describe the three different life-cycle strategies among sexual multicellular organisms and their commonalities
Understand why you could never create a gamete that would be identical to either of the gametes that made you
What are the abiotic and biotic factors of a Beach Coastal?
Answer:
Beaches have specific abiotic factors like sandy, rocky soil, high amounts of sunlight, strong wind, high salinity and changing tides. Despite these challenges many biotic factors survive, such as mangrove trees in tropical areas, and flat, sprawling succulents in sand dunes.
Tidal energy is produced through the use of tidal energy generators. These large underwater turbines are placed in areas with high tidal movements, and are designed to capture the kinetic motion of the ebbing and surging of ocean tides in order to produce electricity.
Answer:
Alternative energy
Explanation:
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How is the process used to produce sex cells different from
the process used to produce body cells?
The process used to produce se_x cells which is different from the process used to produce body cells is called meiosis.
What is meiosis?Meiosis is a cellular process that generates four daughter germinal cells having half genetic material.
Conversely, mitosis produces two genetically identical somatic (body) cells.In conclusion, the process used to produce se_x cells which is different from the process used to produce body cells is called meiosis.
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