1. What is vestigial structure?
2. What is analogous structure?
3. What is homologous structure?
Answer:
1. What is vestigial structure?
Vestigial structures are structures that have no obvious purpose and appear to be leftover components from a previous progenitor. The human appendix, a snake's pelvic bone, and the wings of flightless birds are all examples of vestigial features.
2. What is analogous structure?
Analogous structures are characteristics of various species that are comparable in function but not necessarily in form, do not come from a shared ancestral feature (in contrast to homologous structures), and evolved in response to a similar environmental challenge.
3. What is homologous structure?
Homologous structures are physical traits that are comparable in species with a common ancestry but perform radically distinct purposes. The limbs of humans, cats, whales, and bats are examples of homologous structures.
what is the nucleus of a cell
relationship between living environment and non living environment. 6point strong
•Relationship between living environment and non living environment.
Answer:
•Living things need nonliving things to survive. Without food, water, and air, living things die. Sunlight, shelter, and soil are also important for living things. Living things meet their needs from living and nonliving things in ecosystems.
Explanation:
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Which of the following is a question which science cannot answer?
Why does the moon have different phases?
What will be the date when the sun burns out?
O How do green plants make their own food?
How long does it take for the earth to orbit the sun?
What is a tree that produces fruit called?
A: Non-flowering plant
B: Flowering plant
C: Sprouting plant
D: Spore-bearing plant
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Photosynthesis involves oxidation - reduction and the movement of electrons from one molecule to another. Recall what oxidation and reduction reactions are and study the figure to identify A and B as either oxidation or reduction.
Answer:
There you go!!
Explanation:
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What is a carbon sink or carbon reservoir?
O A place where carbon is stored
O A place where carbon is changed
1. Atoms achieve stability by forming chemical bonds.
True or false
Answer:
True
Explanation:
Ionic , covalent and metallic bonds are formed to make atoms stable
three factors that cause environmental pollution
Answer:
Oil,air pollution and soil erosion
sorry if I get it wrong
Answer:
industries , Transportation , Agricultural Activities
Explanation:
Environmental pollution has existed for centuries but only started to be significant following the industrial revolution in the 19th century
Parts Of Volcano
●Ash cloud
●Base
●Bedrock
●Branch pipe
●Conduit (pipe)
●Crater
●Flank
●Lava
●Layers of ash emitted by the volcano
●Layers of lava emitted by the volcano
●Magma chamber
●Parasitic cone
●Sill
●Throat
●Vent
Review Map D. Predict future weather for New Orleans, LA. What weather might occur there? What is the cause of this weather? Predict the future weather for Washington, DC. What is the cause of this weather?
Answer:
1. Many fronts cause weather events such as rain, thunderstorms, gusty winds, and tornadoes. At a cold front, there may be dramatic thunderstorms. At a warm front, there may be low stratus clouds. Usually, the skies clear once the front has passed.
2. As the warm moist air rises, towering clouds often form releasing energy in the form of brief, intense rain storms with high winds and lightning. On the other hand, warm fronts will ride up and over cold air near the surface. As it rises, the air cools and the humidity condenses to form clouds and precipitation.
Explanation:
When a population of animal 'X' was introduced into the community, the
number of lions increased while the number of deer decreased. Animal
"X' could be described as what?
Answer:
X is a predator of the deer and a prey of the Lion.
a new species can be formed by
Answer:
b) solitary isolation only
b) 1950s
Explanation:
When two species don't get to meet because of physical barriers, they're called "geographical isolation." This eliminates the rest of the answers.
Question in picture
Answer 1:formation of mountain ranges
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Explanation:
What system is a long tube that travels through you body? It take me the butriente out of food for you body to use
Answer:
The broken-down food is then absorbed into the bloodstream from the small intestine and the nutrients are carried to each cell in the body. THE DEGISTIVE TRACT begins at the mouth and ends at the anus. It is like a long muscular tube, up to 10 metres long, with digestive organs attached along the way.
The Arctic Desert partially occupies the territory of which country?
Answer:
The ecoregion stretches 2,000 km west-to-east, and 1,000 km north-to-south, across the Arctic Ocean north of Norway and Russia. It covers the island groups of Svalbard (Norway), Franz Josef Land (Russia), Severny Island (Russia), and Severnaya Zemlya (Russia).
Explanation:
What is located between the left atrium and left ventricle?
Answer:
Mitral ValveMitral valve, between the left atrium and left ventricleInternal adaptations are the traits created by an evolutionary process whereby a population becomes better suited to its habitat by adapting the function of its internal structures. What is an internal adaptation birds have that makes them well suited for flight? A) Beak B) Hollow bones C) Smooth feathers D) Crop and gizzard
Answer:
B) Hollow bone
Explanation:
Air sacs are attached to the hollow areas in a bird's bones. Essentially, their lungs extend throughout their bones. This helps birds take in oxygen while both inhaling and exhaling. This adds more oxygen to the blood, providing a bird with extra energy for flight.
Answer:
B hollow bones
Explanation:
its style was said to be a modifiaton of the marching mode
Answer:
yes
Explanation:
yes yes yes yes yes yes yes yes
How do
plants capture light energy?
Answer:
In most plants, the leaves are the main food factories. They capture the sun's energy with the help of chlorophyll in the leaf cells. The chlorophyll traps and packages the energy from the light of the sun in a process called photosynthesis. Leaves usually have a large surface so they can collect the most sunlight.
Explanation:
We should avoid the company of bad friends to stay away from tobacco alcohol and drugs .Justify the statement
Explanation:
we should avoid bad company of bad friends to stay away from tobacco alcohol and drugs because they are always the first who might affect us in bad way They will force us to use those unwanted or harmful chemicals they will lead us to destruction and make our life addicted in drugs alcohol and tobacco.We should stay away from them or we can also tell them not to use those harmful chemicals.
list some common structures that are found in both modern birds and Archaeopteryx.
Common features found in birds and Archaeopteryx include
feathers,three-fingered hands,wishboneWhat are birds?Birds are a group of animals that possess wings and can usually fly.
Birds belongs to the class of animals aves.
Birds are believed to be descendants of the ancient animal called Archaeopteryx.
Some common features found in birds and Archaeopteryx include:
feathers,three-fingered hands,wishbone, and long robust forelimbs.In conclusion, the modern birds can be said to be a descendant of the Archaeopteryx due to common features shared by them.
Learn more about birds and Archaeopteryx at: https://brainly.com/question/18112936
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Carbon Cycle
Are you talking about the carbon cycle
[MA]:
Carbon cycle.
Writer's Note: Sorry if this is wrong, i was never good at things like this.
[xArtsy]
what is testis and wnat is overy how zygote form
Answer: hope this helps u
Explanation:
One of two egg-shaped glands inside the scrotum that produce sperm and male hormones is called testis.
One of a pair of female glands in which the eggs form and the female hormones estrogen and progesterone are made.
A zygote forms when a sperm penetrates the outer surface of an egg.
The ovary produces female gametes called ova and the testes produce male gametes called sperms.
The fusion of ovum and sperm is called fertilisation. The fertilised egg is called a zygote.
6. List What types of
particles make up a
carbon atom?
Answer:
The subatomic particles in the nucleus of a carbon atom are protons and neutrons.
Explanation:
The atomic nucleus contains protons and usually neutrons (except for hydrogen-1 (protium) atoms. The number of protons is an element's atomic number and is the same for all atoms of an element. Carbon has atomic number 6. So all atoms of carbon have 6 protons in their atomic nuclei. Carbon atoms also contain neutrons in their atomic nuclei, which may number 6, 7, or 8.
How are a desert and a tundra similar? (100 points) BRAINLIEST will be given!
They both have high levels of precipitation.
They have many trees and a lot of vegetation.
They have high average temperatures.
They have low humidity and low levels of precipitation.
Answer:
they have high average temperatures
Explanation:
:3
Describe the role of competition in the simulation?
Answer: Competition ensures the survival of the fittest.
Explanation: The better characteristics and genes can be passed on.
Answer:
Competition can sometimes be viewed as not always necessary in an organisation especially when it comes to training; however I oppose this idea, especially in the context of business simulation games. There are various advantages of creating healthy competition within a business simulation game environment, just like in the real business world:
Explanation:
hope it helpWhat is the function of the carrier molecule in photosynthesis?
A. to transport electrons and H+ ions to the dark reactions
B. to bring carbon dioxide into the chloroplast
C. to prevent the leaf from drying out
Answer:
B
Explanation:
We breath in oxygen, and we breath out carbon dioxide. Plants breath from the sun.
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Animals inherit traits from their parents. They pass some of these sare traits on to their children,
Suppose a pair of animals has a trait that helps them survive in their environment. They pass this trait on to their children What
effect will that probably have on the children?
A. The children will be more likely to survive than if they did not have the trait
B. The children will be able to adapt if the environment changes.
C. The children will be more likely to survive than their parents were
D. It will not affect the children
Answer:
A)
Explanation:
Heredity is a process in which organisms acquire characteristics from their parents. These characteristics are called traits. Every individual is unique because they have a unique set of traits. The traits which are transmitted by the parent to its offspring during the process of fertilization are inherited traits. This inheritance is determined by certain rules of heredity. Inherited traits are coded in our DNA and hence can be passed on to the next generation.
blue eyes is nature or nurture?
Answer:
Nurture.
Explanation:
Whether or not you get blue eyes depends on your parents and their genes.
