Answer:
by National Research Council · 1987 · Cited by 3 — When traditional, or classical, breeders cross two sexually reproducing plants or ... A few techniques for gene transfer can handle segments of DNA at the upper end of ... Again, depending on the experiment's purpose, many copies or only one ... The transferred genes can also be reisolated from the animal or plant cells, put ...
Explanation:
3. If seismographs showed a specific region as earthquake prone, what proposed solutions
could lessen the damage of potential earthquakes? (Describe at least two.)
4. What are some costs and benefits of one of your proposed solutions?
The proposed solutions that could lessen the damage of potential earthquakes are establishing the ledge barrier on shelves, always anchoring the large appliances to walls employing protection cables or straps.
What is Earthquake?An earthquake may be defined as an impulsive violent trembling of the ground, generally causing tremendous devastation, as an outcome of motions within the earth's crust or volcanic action.
The costs of proposed solutions are a little bit expensive, while it results in the benefit to save and escape your life from earthquake activity to a larger extent.
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Worth branliest only if u get it right please answer properly and not just for points it’s the last question for this homework
PLEASEEEEE HELPPPP I WILL GIVE YOU BRAINLEAST
a two-paragraph report on flower reproduction
Answer:
Flowering plants reproduce sexually through a process called pollination. The flowers contain male sex organs called stamens and female sex organs called pistils. ... Cross-pollination happens when the wind or animals move pollen from one plant to fertilize the ovules on a different plant. The primary purpose of a flower is reproduction. Since the flowers are the reproductive organs of plant, they mediate the joining of the sperm, contained within pollen, to the ovules — contained in the ovary. Pollination is the movement of pollen from the anthers to the stigma.
Explanation:
Answer:
Alternation of generations occurs in plants, where the sporophyte phase is succeeded by the gametophyte phase. The life cycle of a flowering plant. The angiosperms were the last of the seed plant groups to evolve, appearing over 100 million years ago during the middle of the Age of Dinosaurs. Reproductive parts of the flower are the stamen and carpel. Often the carpel is referred to as the pistil, the female parts collectively termed the gynoecium. The androecium is the individual units of the androecium are the stamens, which consist of a filament that supports the anther.
Pollen Pollen grains, from the greek palynos for dust or pollen, contains the male gametophyte phase of the plant. The outer part of the pollen is the exine, which is composed of a complex polysaccharide, sporopollenin. Hypothesized steps in the evolution of the carpel. Nonvascular plants, the mosses, and liverworts have the gametophyte phase dominant. Vascular plants show a progression of increasing sporophyte dominance from the ferns and "fern allies" to angiosperms.
Brainlist Pls!
Which of the following does biodiversity NOT contribute to?
a
Food
b
Clothes
c
Wireless Internet
d
Medicine
Help Me! Pick An Scenario! Thank you!
Answer: I would pick scenario 3.
Explanation:
It talks about a relevant factor in a local state. More and more trees are being chopped down today. This can make a community lack natural and fresh air.
List the 4 types of plant tropisms and give 1-2 examples of each type. Be sure to explain why each tropism helps the plant survive.
What evidence have you discovered to explain how cells are organized in the body, similar to the way dots in pointillism art is organized.
Answer:
I'd have to say that cells are grouped by function and specialty. Many of the same type of cell are joined in a common task. Muscle cells are joined to form a specific task. Different cells in the body form into different organs and structures to form the whole body.
In art, pointillism uses dots of various sizes and colors. These dots are arranged so as to produce a specific visual effect. The entire work is composed of many individual points to form the whole picture.
In this way, we can equate the body's various cell to dots in a work of pointillism.
Explanation:
The HPA axis of the endocrine system works together with the sympathetic nervous system to increase an individual's heart rate, blood flow, and blood sugar levels during times of stress. This stress response is also referred to as the
Answer:
Adrenaline rush aka fight or flight response
Explanation:
Epinephrine adrenaline and norepinephrine a release to focus attention on the task at hand heart rate and blood pressure increase delivering oxygen to the muscles for flight. The eyes take in more light to increase visual acuity and more sugar is released into the bloodstream to increase energy. Functions like digestion, reproductive, and urinary system are slowed
Which wave has the higher frequency A or B?
Answer:
wave b has the higher frequency
Answer:
b wave has the higher frequency
Which are characteristics of a prokaryotic cell? A. Single cellular, has nucleus.
B. Multicellular, has nucleus
C. Single cellular, has no nucleus.
D. Multicellular, has no nucleus
Which level(s) in the energy
pyramid represents the
producers?
1 Producers
2 Primary consumers
3 Secondary consumer
4 Tertiary consumers
5 Quaternary consumers
Answer:
1
Explanation:
2. Use the list below to complete the following statements.
Florida panther rain temperature fossils
runoff wetlands pollutants technology
vehicles radios telephones
a. _____________________is the knowledge and tools we use to do difficult tasks.
b. ________________ and ____________________ are all examples of technology we use daily.
c. ___________________ is water that travels over the surface of the land during and after rain. It can carry and nutrients to waterways and disturb ecosystems.
d. When vehicles roll down the roads, the rubber that wears off the tires may run downhill during the next ______________________ .
e. Oil, gas, and other pollutants may pose a threat to Florida's lakes and ______________.
f. Greenhouse gases are chemicals emitted into the atmosphere that add to the overall increase in Earth's _____________________________.
g. Greenhouse gases are produced by burning _______________ fuels, which are the remains of living organisms.
h. When roads cross a habitat, they expose animals within the habitat to increased rates of death due to encounters with __________________________.
i. It is believed that the creation of isolated pockets of animals has likely contributed to the endangerment of the ___________________________.
Answer:
In the Explanation
Explanation:
a. technology
b. radios, telephones
c. runoff
d. rain
e. wetland
f. temperature
g. fossil
h. vehicles
i. panther
Hope this is helpful!
In this exercise, we are completing statements by selecting appropriate words from the given list. Each statement requires us to choose the correct word or words that fit logically and accurately. By carefully reading each statement, we can identify the missing word or words and select the appropriate options from the given list.
a. Technology is the knowledge and tools we use to do difficult tasks.
b. Radios and telephones are all examples of technology we use daily.
c. Runoff is water that travels over the surface of the land during and after rain. It can carry pollutants and nutrients to waterways and disturb ecosystems.
d. When vehicles roll down the roads, the rubber that wears off the tires may run downhill during the next rain.
e. Oil, gas, and other pollutants may pose a threat to Florida's lakes and wetlands.
f. Greenhouse gases are chemicals emitted into the atmosphere that add to the overall increase in Earth's temperature.
g. Greenhouse gases are produced by burning fossil fuels, which are the remains of living organisms.
h. When roads cross a habitat, they expose animals within the habitat to increased rates of death due to encounters with vehicles.
i. It is believed that the creation of isolated pockets of animals has likely contributed to the endangerment of the Florida panther.
It is important to consider the context and meaning of each statement to choose the most suitable word or words from the list. Additionally, being familiar with the definitions and concepts related to the given words can help us accurately complete the statements.
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How did the volcano on the land
Form?
Answer:
On land, volcanoes form when one tectonic plate moves under another. Usually a thin, heavy oceanic plate subducts, or moves under, a thicker continental plate. When this happens, the ocean plate sinks into the mantle. Water trapped in the rocks in this plate gets squeezed out.
Explanation:
How does volcanic rock in Hawaii turn into sediment?
Answer:
cools down and water helps it
Explanation:
Please help. This test is timed and this course is way too hard. I will mark Brainliest if you have the best answer! No random answers though. Only answer if you actually know the answer. Or else I report you.
How do the temperaments of cows and bulls compare?
A. Bulls are typically more docile, while cows are more hostile.
B. Bulls are more playful, while cows are more unpredictable.
C. Bulls are more combative, while cows are more maternally protective.
Answer:
C
Explanation:
Bulls are a more extreme version of a cow. A cow is like a mother who cares for her children while a bull is like a rowdy person who does weird and unpredictable things at times. That's why when people hear the word wild cow, they don't usually get frightened but when they hear the word wild bull, they kind of get afraid.
How are a tundra and a desert different?
A tundra has a lot of precipitation and a desert has little.
A tundra has few trees and plants and deserts have many.
A tundra has soil that is often sandy and a desert has grass.
A tundra is dry and cold and a desert is dry and hot.
An eagle on a tree branch sees an injured squirrel 50 meters away on the ground. The eagle then flies from the tree to prey on the injured squirrel. Which of the following best describes what happened with the eagle before it started to fly toward the squirrel?
A.
The eagle was born with the ability to prey on squirrels, so no brain activity was required.
B.
The eagle's brain recognized the squirrel as prey.
C.
The sight of the squirrel came only from the eagle's memory, which stimulated the muscles to move.
D.
The sense received from the squirrel went directly to the eagle's eyes to its muscles.
1. What are the necessary criteria for proper measurement of an epicenter location? Are
there any limitations in this virtual lab that make finding the exact epicenter of an
earthquake more difficult?
2. How will knowledge of an earthquake epicenter help emergency management teams
make better earthquake response plans?
Answer:The epicenter locaiton is where the locations overlap. We need to find the Distance to an Epicenter by identifying the S-P intervals from the seismograph. The limitaions in the lab is that we don’t have the actual materials in front of us so we cant find the exact epicenter.
Explanation:
The epicenter locaiton is where the locations overlap. We need to find the Distance to an Epicenter by identifying the S-P intervals from the seismograph. The limitaions in the lab is that we don’t have the actual materials in front of us so we cant find the exact epicenter.
3. Which level in the energy pyramid represents the secondary consumer
Which level in the energy pyramid represents the tertiary consumer
Answers
Producers
Primary consumers
Secondary consumer
Tertiary consumer
Quaternary consumers
The diagram on the left shows the layers of Earth's atmosphere and how temperature changes with altitude. The diagram on the right shows the layers of Venus' atmosphere and how temperature changes with altitude. Both diagrams indicate the altitude below which 90% of each atmosphere's mass is located.
According to the diagrams, which of the following statements is true?
A.
90% of the mass of Venus' atmosphere is within 10 km of the surface.
B.
The upper part of Venus' troposphere is about 200°C colder than the upper part of Earth's.
C.
Venus' troposphere is several times thicker than Earth's troposphere.
According to the diagrams. the following statements which is true is the upper part of the Venus' troposphere is about 200°C colder than the upper part of the Earth's atmosphere. Thus, the correct option is B.
What is the relation between troposphere and temperature?As the elevation increases, there is less air above us thus the pressure keeps on decreasing. As the pressure decreases, air molecules spread out further and expand in air, and the temperature of the atmosphere decreases.
Temperature of the atmosphere decreases with the increase in altitude because the troposphere is warmed from below, through the absorption and re-emission of incoming solar radiation by the Earth's surface, rather than it is being warmed from above through the incoming solar radiation.
According to the given diagram, the statement which is true is that the upper part of Venus' troposphere is about 200°C colder than the upper part of Earth's.
Therefore, the correct option is B.
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The cytoplasm is the watery fluid found within cells. The cytoplasm holds all of the organelles, except _______, in place within the cell.
A. chloroplasts
B. mitochondria
C. the nucleus
D. vacuoles
Bacteria in the Shigella genus cause the disease shigellosis. The symptoms of shigellosis include diarrhea, fever, and intestinal cramping. The disease is unpleasant, but most people recover within a week. Shigellosis is transmitted from one person to another through bodily wastes. You can catch shigellosis from a baby when changing its diaper. People also catch the disease by drinking contaminated water. The best way to avoid shigellosis is through frequent hand-washing with soap.
A strategy for fighting bacterial infections uses viruses. Viruses that infect bacteria are called bacteriophages. Phage comes from the Greek word for “eater.” Explain why it is not accurate to call a virus that kills bacteria a “bacteria eater." What happens when a virus attacks a cell?
How many hydrogen bonds are between A and T, and C and G?
Answer:
A and T form two hydrogen bonds with one another, while G and C form three hydrogen bonds with one another.
Explanation:
The mass of an unidentified rock is 27.5 grams. Students determine the volume of the rock by placing the rock in a cylinder with water. The students calculate the density of the rock. They determine the identity of the rock based on the density ranges in the table.
The students most likely have which type of rock?
Dolomite
Sandstone
Peridotite
Coal
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Taking into consideration the sensitivity of the balance, what do you conclude about the mass of salt and water as the salt dissolves?
It can be concluded that the mass of salt and water gets lighter as the salt dissolves.
How does the magma in underwater volcanoes in Hawaii form?
Answer:ike a blowtorch, the heat transforms deep rocks into oozy magma
Explanation:
Answer:
Like a blowtorch, the heat transforms deep rocks into oozy magma. The magma rises upward until it erupts onto the seafloor. When the sizzling lava (which is what magma is called when it erupts) hits the cooler water, it hardens into an underwater volcano, the heat transforms deep rocks into oozy magma
Explanation:
Site 3: http://www.experiment-resources.com/darwins-finches.html
Read the first two sections "Darwin's Finches" and "The Galapagos Islands"
5. Did Darwin first believe that each finch he found was a different species? Was he right or wrong?
6. How did organisms arrive at the Galapagos Islands?
Site 4: http://www.biologs-online.org/2/12 selective breeding.html
7. Why is selective breeding useful to farmers?
8. What does it mean to selectively breed an organism?
Site 5: Vereesforlife.cz forest forest-ecologica
9. What is mimicry? How does mimicry benefit an organism?
Answer:
Have a good day!
Explanation:
How is this possible if the Law of conservation of Mass says that Mass can neither be created or destroyed?
Answer:
according to the law of conservation of mass, the mass of the products in a chemical reaction must equal the mass of the reactants. Hope this helps! :)
There were many factors that affected people who lived in the Great Plains during the Dust Bowl era. What was the main factor that drove people from the Great Plains?
Answer: The Dust Bowl was caused by several economic and agricultural factors, including federal land policies, changes in regional weather, farm economics and other cultural factors. After the Civil War, a series of federal land acts coaxed pioneers westward by incentivizing farming in the Great Plains.
Explanation:
1) Manifest Destiny: The US Government wanted settlers to move onto the Plains as they needed the land to be settled and farmed and for communities and towns to grow up and expand. This was needed if the USA was to be a rich and successful country. The government therefore promoted the idea of Manifest Destiny.
the punnett square below shows a cross between a pea plant with yellow seeds and a pea plant with green seeds
If mating produces 100 offspring, about how many will have yellow seeds?
A. 25
B. 50
C. 75
D. 100
life iscience 7th grade
Answer:
D
Explanation:
The yellow pea is dominant so if it is crossed with a pure recessive then they will all be yellow
According to Punnett Square, if mating produces 100 offspring, then all of them will have yellow seeds. Thus, the correct option for this question is D.
What is the Punnett Square?The Punnett Square may be characterized as a kind of table in which all of the plausible consequences for a genetic cross between two individuals with known genotypes are systematically demonstrated.
According to the question, there is a homozygous dominant genotype of one parent when crossed with the heterozygous genotype of other parents, then the genotypes of resultant offspring must carry at least one dominant allele which governs the phenotype of the entire offspring.
Therefore, according to Punnett Square, if mating produces 100 offspring, then all of them will have yellow seeds. Thus, the correct option for this question is D.
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