es la A
Hace aproximadamente 250 millones de años ocurrió la extinción masiva del Pérmico-Triásico, un evento en el cual murieron hasta el 96 por ciento de las especies marinas y un porcentaje similar de las terrestres. Cerca de tres millones de años después se produjo la separación, a partir de un ancestro en común, de los linajes que con el tiempo darían origen a las aves y los cocodrilos. El grupo que incluye tanto a cocodrilos como aves se lo denomina Archosauria, que significa ‘reptiles dominantes’.
espero y te ayude
will give 15 points and brainliest just awnser like
1.ghkdigh
2.ighdf
3.ygf
and so on thanks!
Answer:
1.Law of conservation of energy
2. Energy transformation
3.Friction
4. electric, thermal
5. Kinetic, Potential
6. Potential, Kinetic
7.Kinetic
8.Radiant, electrical
9. Electrical
10. Radiant
Which of the following mechanisms is the correct sequence of events that takes place during the plant responses to internal and external signals?
A) transduction, reception, and response
B) reception and transduction
C) reception, transduction, and response
D) reception and response
Answer:
C) reception, transduction, and response
Explanation:
Plant signaling means that information is conveyed from receptor systems to effectors within and between plant cells.
Signals can be of chemical form or electrical form.
Plant responses to internal and external signals take place in the following sequence:
Reception
Transduction
Response
So, option C) is correct
explain the difference between solid lines in the diagram and the dashed lines in the diagram
Answer: in an organization chart, a solid line is used to indicate the relationship between a manager and their reports. A "dotted line report" is an employee that has some level of accountability to another, but is not a direct report.
Explanation:
In the United States, there has been an increase in the number of people infected by mosquito spread diseas that were previously found only in countries south of the United States. Scientists want to investigate the cause of the increase in mosquito spread diseases. Scientists have predicted that the mosquitos carrying disease have moved further north as global temperatures have increased. Which questions would help investigate how the new mosquitoes are affecting the ecosystems of the United States ? Select all that apply. AHow much money has been spent to fight the diseases caused by these mosquitoes across the globe? B. How have the food webs in the United States changed as a result of the new mosquitoes? the natural predators to the mosquitoes also migrated north? What types of organisms are preying on the mosquitoes in their new habitats? E Are places in the United States using more pesticides to kill the new mosquitoes? If so, how are these pesticides impacting others in the ecosystems
Answer:
What types of organisms are preying on the mosquitoes in their new habitats?
Explanation:
I think it is all the answers except for What types of organisms are preying on the mosquitoes in their new habitats? this is because when a new species comes to an area it does not have anything to prey on it
Easy question about plant water loss?
Answer:
B,C,F
Explanation:
Different organs work together to create an ____________ that carries out a specific process in the body.
A. organ system
B. cell
C. tissue
Answer:
organ system A
Explanation:
Answer:the answer is a
Explanation:
Define these types of relationships (symbiosis).
a. mutualism -
b. commensalism-
c. parasitism -
d. predator/prey -
e. competition -
Answer:
mutualism -Both species benefit
commensalism- One species lives with, on, or in another species (the host). The host species neither benefits nor is harmed from the relationship. The species that lives on the host is benefited.
parasitism - One species (the parasite) lives with, on, or in a host species, at the expense of the host species. Unlike in predation, the host is not immediately killed by the parasite, though it may sicken and die over time.
predator/prey -One species (the predator) hunts and kills another species (the prey)
competition -The struggle among organisms for the same limited resources in an ecosystem
Explanation:
The pH of a solution is a measure of how acidic or basic it is. The greater the pH, the more basic the solution is. Corals and other marine invertebrates require less energy to make their exoskeletons and shells when ocean water is slightly basic. As carbon dioxide concentrations in Earth’s atmosphere rise, ocean water absorbs carbon dioxide and becomes more acidic. This process is called ocean acidification. How do you think ocean acidification will affect the coral reef?
Explanation:
Because coral reefs have limestone (calcium carbonate), the coral reefs will be greatly affected. The increase in hydrogen ions in the ocean will corrode the coral reef, making it inhabitable for species. This will affect the crabs that get their food and the community that lives within in it. Making countless of species to loose their lives and their way if living.
A scientist has found fossils of an organism that she suspects is related to a living
vertebrate species, but it has different physical characteristics. The fossil is dated
at 10 million years old. The scientist wishes to look for a transitional species
between the fossil organism and the living vertebrate species. Which location
would be the best to find fossils of a transitional species?
in volcanic rock that is dated at 10 million years old
in volcanic rock that is dated at 20 million years old
in sedimentary rock that is dated at 5 million years old
in sedimentary rock that is dated at 20 million years old
Answer:
the 3rd one
Explanation:
Can someone plz help me on this science its due today and STAAR test is next week
Answer:
answer is c
Explanation:
hope it helps!!!
A freckled man marries a woman without freckles. They have four children, two with freckles, and two without freckles. What are the genotypes of all these people?
Answer:
The genotype of the father: Ff
The genotype of the mother: ff
The genotype of the two children without freckles: ff
The genotype of the two children with freckles: Ff
Explanation:
Freckles (F) are is dominant trait, so one dominant allele in the genotype of an individual will cause he/she to have freckles. Since the father has freckles, but only two of his children has freckles; that means that he has a heterozygous genotype. In the Punnett Square, the offsprings' genotypes are shown, as well as the parents'.
A freckled man marries a woman without freckles, and they have four children, two with freckles and two without, so the genotype of the parents are Ff, ff and the children with freckles are Ff, while the freckleless are ff types.
What is the significance of the freckle trait?There are both dominant and recessive traits that determine the person's quality, such as freckles, which are dominant over being freckleless. When the parents with freckles cross with the parents without freckles, they will produce half the freckles and half the freckleless. The parent with a freckle is heterozygous (Ff), so two types of gametes will be produced, such as F and f, and will form Ff and ff offspring when crossed with the freckleless parent (ff).
Hence, a freckled man marries a woman without freckles, and they have four children, two with freckles and two without, so the genotype of the parents are Ff, ff and the children with freckles are Ff, while the freckleless are ff types.
Learn more about the freckle here.
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the cell shown in the diagram is ?
Answer:
Plant cell
Explanation:
Because vacuole, chloroplast and cell wall is only present in A Plant cell
Mention the function of oveary ,ovduct and utterus in the female reproductive system. how essential materials are supplied for the development of foetus?
Answer:
- The ovary is the female organ that produces the female gametes
- The oviducts are tubes that extend from the ovaries to the uterus
- The uterus is an organ that acts to nourish and house a fertilized egg until the fetus is delivered
- Materials are supplied by the mother's placenta
Explanation:
The ovaries are the female gonads that function to produce and release female gametes (i.e., oocytes) into the reproductive tract. These organs are also in charge of producing female hormones (e.g. progesterone). The oviducts, also known as fallopian tubes, are a pair of tubes that extend from each ovary to the top of the uterus. The uterus is a thick muscular organ of the female reproductive system that nourishes and houses the embryo and fetus. Finally, materials such as oxygen and nutrients pass from the mother's bloodstream through the placenta which is connected to the fetus by the umbilical cord.
Clouds form when water vapor _________.
A. evaporates
B. condenses
Answer:
B. condenses
Explanation:
Clouds form when water vapor condenses.
NO LINKS I WILL REPORT U
Answer:
I belive the answer would be c...Im sry if im not right
Explanation:
Answer:
C. Return fixed nitrogen to the soil
Explanation:
I'm so sorry if I'm not correct
difference between blood and lymph
Explanation:
Hope this is helpful
[tex]\LARGE{\color{pink}{\textsf{\textbf{⠀❥คɴᎦᴡєя⠀}}}} [/tex]
Blood has RBC's, WBC's, platelets and a fluid called plasma. Whereas lymph has WBC's and watery fluid. They both have immune and also circulatory functions in them. One of the major differences between them is that blood flows through blood vessels and lymph through lymphatic vessels.
_________________
~ hαppч lєαrníng ~
which of the following is NOT a natural resource?
A gold
B water
C oil
D fire
Answer:
D
Explanation:
Fire is man made because for there to be fire you have to strike a match or use other man made sources
Please help ;(
question and answer options in photo
zoom in if needed
Thank You :D
Answer:
B Decomposers
Explanation:
There is nothing to eat the dead animals/ leaves for when they die
Answer:
I believe the answer is, B
Circle the letter of each sentence that is true about the cell wall.
a. Cell walls are made of cellulose.
b. Plant cells have cell walls.
c. Animal cells have cell walls.
d. Water and oxygen cannot pass through the cell wall
Answer:
D.Water and oxygen cannot pass through the cell wall
Explanation:
not sure
Can y’all help me with 3 & 4 please I beg you I need to pass this test
Answer:
A
Explanation:
I think an untreated water can carry disease causing organisms and make people sick
Alice wanted to see if a new premium gasoline would give her more kilometres per litre. She filled her car with the new gasoline and went on a long trip. When she calculated her mileage, she discovered that she has gone 40 kilometres further on this tank of gas than she went on a tank of regular gas when she was driving around town as usual. She decided to buy the premium gas from then on to get better mileage. What are the errors in this experiment?
Answer:
She didn't cover the same distance for the new premium gasoline and regular gas
Explanation:
which parrots were killed by predators
Answer: Raptorial birds especially the forest eagles, hawk-eagles, Accipiter hawks, and falcons are the most likely species to prey on adult parrots and macaws.
Explanation:
Answer:
i am a little confused do you mean what predators kill parrots or if it is predators then raptors like owls eagles and hawks cats like jaguars
Explanation:
Erosion and deposition work together to
shape Earth's surface. Which of the following
statements best describes deposition?
A. A river flows into an ocean slows and
drops sediment.
B. Rushing water beats against the rocks at
the base of a waterfall.
C. A rushing river spreads out and forms a
wide river valley.
D. Sediment is carried away from the outer
bank of a river.
Answer:
A
Explanation:
Is it true ocean cover over 50% of earths surface
Answer:
that's the answer I got
if it's not enough just tell me
A substace put in a space or cantainer to fill it, usually applied in wood to fill up cracks and grooves
Answer:
Glue and sawdust.
Explanation:
Glue and sawdust are the substances that applied in wood to fill up cracks and grooves. You can use the glue and sawdust method to fill the gaps present in the wood. This method is a quick and easy solution that successfully fill up the gaps and grooves on the wood. The method of using this method is, first fill the gap with a small amount of wood glue, then rub sawdust into the gap which attached the saw dust with itself and the gaps are filled.
Explain why natural selection happens to the individual but adaptation happens to an entire population.
Answer:
Natural selection kills a single individual that was weaker/less suited for the environment than the others. Adaption happens to one individual but through breeding, it becomes a trait for the entire species.
Explanation:
What does biodiversity mean ?
Answer:
biodiversity mean Biodiversity, also called biological diversity, the variety of life found in a place on Earth or, often, the total variety of life on Earth.
Explanation:
Answer: Biodiversity is a term used to describe the enormous variety of life on Earth. It can be used more specifically to refer to all of the species in one region or ecosystem. Biodiversity refers to every living thing, including plants, bacteria, animals, and humans.
Explanation: Usually three levels of biodiversity are discussed—genetic, species, and ecosystem diversity.
Genetic diversity is all the different genes contained in all individualplants, animals, fungi, and microorganisms. It occurs within a species as
well as between species.
Species diversity is all the differences within and between populationsof species, as well as between different species.
Ecosystem diversity is all the different habitats, biological communities,and ecological processes, as well as variation within individual ecosystems.
The maintenance of a self-sustaining ecosystem requires a
A.soil that is acidic
B.constant temperature
C.greater numberof herbivores than producers
D.cycling of materials between organisms and their environment
All of Earth's biomes considered together represent:
A. population
B. community
C. biosphere
D. ecosystem
All of Earth's biomes considered together represent biosphere.
What is a biome?A biome is an amalgamation of plants and animals with similar traits for their habitat. Biomes can be found in many different locations. They are biological communities that have developed as a result of the area's common physical climate.
What is a biosphere?The biosphere is a small area of the earth's surface where soil, water, and air work together to support life. Only in this region is life possible.
What is a population?A population is a collection of people who can interbreed, share resources, or compete with one another for those resources.
What is a community?A community is defined as a collection of individuals belonging to various species who reside in the same region.
What is an ecosystem?An ecosystem is a biotic and abiotic component-based functioning unit of nature. Air, water, and soil are examples of abiotic components. The biotic components are producers, consumers, and decomposers.
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Explain how genetic modifications impact crop yield. How will this help feed the world in 2050?
Answer:
The first, which was published in 2014 and included the review of 147 studies, concluded that GM crops have allowed an average increase in agricultural yield by 22 percent and increased farmers' profits by 68 percent, with profit margins even larger in developing countries.Explanation:
