Answer:
I am having trouble with the same question as well.
Explanation:
Can anyone help us.
The evolutionary modifications in trilobites could have occurred relatively quickly but there are periods with little to no change to the species.
Trilobites represent an extinct group of animals that disappeared during the end Permian mass extinction event.This event (Permian mass extinction) removed over 90% of all species on Earth. The equilibrium punctuated theory suggests that there are periods of very little change in the evolution of a species, and then periods having huge evolutionary modifications.In conclusion, the evolutionary modifications in trilobites could have occurred relatively quickly but there are periods with little to no change to the species.
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In the human body, each hormone is regulated by certain genes. These genes are turned on at times and turned off at other times. Which best explains this process?
Genes are directly regulated by hormones found in the integumentary system.
a. Genes are regulated by hormones secreted by the endocrine system.
b. The regulation of genes is only affected by external factors.
c. The regulation of genes is directly controlled by the nervous system.
Answer:
c. The regulation of genes is directly controlled by the nervous system.
Explanation:
C.The regulation of genes is directly controlled by the nervous system.
In the human body, each hormone is regulated by certain genes. These genes are turned on at times and turned off at other times the best explains this process is the regulation of genes is directly controlled by the nervous system.Thus, the correct answer is C.
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Which of the following is NOT a main reason myths were an important part of everyday life in ancient Greece? Group of answer choices They gave them something to do. They explained religious rituals. They explained the weather. They gave meaning to the world
Answer:
They gave them something to do.
Explanation:
3. In what stage do humans have an exceptionable ability to learn?
O Adolescence
O Adulthood
O Infancy
Childhood
It is an
advantage for two species to share the same niche.
Answer:
False.
Explanation:
The competitive exclusion principle states that when two species compete for exactly the same resources (thus, they occupy the same niche), one is likely to be more successful. As a result, one species "outcompetes" the other species, and eventually the second species is eliminated.
what happen if a person has brain injury?
Answer:
Mild traumatic brain injury may affect your brain cells temporarily. More-serious traumatic brain injury can result in bruising, torn tissues, bleeding and other physical damage to the brain. These injuries can result in long-term complications or death.
Explanation:
the study of the life cycle of mosquito is important for its control, why?
Hello Goodmorning...God bless..here is the answer to your following question- :)
Explanation:
By the study of life cycle of mosquito, we can conclude the female mosquito lays eggs in stagnant water and develop larva and pupa in it
with the help of life cycle of mosquito, we can control them.
Knowing the different stages of the mosquito's life will help you prevent mosquitoes around your home and also help you choose the right pesticides for your needs, if you decide to use them.
PLEASE HELP DUE TODAY
1. What are some examples of different types of
asexual reproduction?
2. What are some types of advantages of asexual reproduction?
3. What are some of the disadvantages if asexual reproduction?
4. What is sexual reproduction?
5. What are alleles?
6. Which has greater variation, asexual reproduction or sexual reproduction?
Answer:
a) There are a number of types of asexual reproduction including fission, fragmentation, budding, vegetative reproduction, spore formation and agamogenesis. Spore formation occurs in plants, and some algae and fungi, and will be discussed in additional concepts
b) The advantages of sexual reproduction:
.) produces genetic variation in the offspring.
.) the species can adapt to new environments due to variation, which gives them a survival advantage.
.) a disease is less likely to affect all the individuals in a population.
c) The disadvantages of asexual reproduction include:
.) it does not lead to genetic variation in a population.
.) the species may only be suited to one habitat.
.) disease may affect all the individuals in a population.
d) the production of new living organisms by combining genetic information from two individuals of different types (sexes). In most higher organisms, one sex (male) produces a small motile gamete which travels to fuse with a larger stationary gamete produced by the other (female).
e) each of two or more alternative forms of a gene that arise by mutation and are found at the same place on a chromosome.
f) Sexual reproduction gives rise to more viable variation than asexual reproduction. Because in sexual reproduction, genetic material from both the parents mixed (recombination of parent chromosomes) by fertilization...
Explanation:
such a long question .....
hope the answer was helpful ......
The Archean Time Period (Stage 1) had lots of oxygen available.
O True
O False
Answer:
True
Explanation:
Environment. The Archean atmosphere is thought to have nearly lacked free oxygen. Astronomers think that the Sun had about 70–75 percent of the present luminosity, yet temperatures on Earth appear to have been near modern levels after only 500 Ma of Earth's formation (the faint young Sun paradox).
Celestial body: Earth
Chronological unit: Eon
Alternate spelling(s): Archaean, Archæan
Lower boundary definition: Defined Chronome...
Hope it Helps! :D
Which of the following undercut farmers in developing countries?
A)
competition among local food growers
B)
donations from other countries
C)
disruptions in distributions
D)
transportation of food over long distances
NOT A
Answer: Might it be B? Either B or C.
Explanation: I would suggest B since developing country farmers suffer when other countries export cheap foods to them. This creates competition and can hurt the farmers’ source of income, essentially undercutting them. If it isn’t B, it has to be C since I got D wrong :)
Answer:
B) donations from other countries
Explanation:
I got it right on Edge :)
What is the name of the process that occurs in
the core of the sun producing the light and heat
energy for life as we know it on planet Earth?
For example, hydrogen atoms are fused together to form helium. In the process, an immense amount of heat and energy is released. Much of that energy is on the electromagnetic spectrum that we cannot see (eg: ultraviolet light), but the visible portion of the spectrum is what we can see and that produces the yellow glow of the sun.
Explain how a carbon atoms moves From primary consumers to secondary consumers
Explain how a carbon atoms moves From consumers back to the atmosphere (2 different methods)
Explain how a carbon atoms moves From consumers to fossil fuels
Answer:
There are a few types of atoms that can be a part of a plant one day, an animal the next day, and then travel downstream as a part of a river’s water the following day. These atoms can be a part of both living things like plants and animals, as well as non-living things like water, air, and even rocks. The same atoms are recycled over and over in different parts of the Earth. This type of cycle of atoms between living and non-living things is known as a biogeochemical cycle.
All of the atoms that are building blocks of living things are a part of biogeochemical cycles. The most common of these are the carbon and nitrogen cycles.
Tiny atoms of carbon and nitrogen are able to move around the planet through these cycles. For example, an atom of carbon is absorbed from the air into the ocean water where it is used by little floating plankton doing photosynthesis to get the nutrition they need. There is the possibility that this little carbon atom becomes part of the plankton’s skeleton, or a part of the skeleton of the larger animal that eats it, and then part of a sedimentary rock when the living things die and only bones are left behind. Carbon that is a part of rocks and fossil fuels like oil, coal, and natural gas may be held away from the rest of the carbon cycle for a long time. These long-term storage places are called “sinks”. When fossil fuels are burned, carbon that had been underground is sent into the air as carbon dioxide, a greenhouse gas.
Recently, people have been causing these biogeochemical cycles to change. When we cut down forests, make more factories, and drive more cars that burn fossil fuels, the way that carbon and nitrogen move around the Earth changes. These changes add more greenhouse gases in our atmosphere and this causes climate change.
The element carbon is a part of seawater, the atmosphere, rocks such as limestone and coal, soils, as well as all living things. On our dynamic planet, carbon is able to move from one of these realms to another as a part of the carbon cycle.
Carbon moves from the atmosphere to plants. In the atmosphere, carbon is attached to oxygen in a gas called carbon dioxide (CO2). Through the process of photosynthesis, carbon dioxide is pulled from the air to produce food made from carbon for plant growth.
Carbon moves from plants to animals. Through food chains, the carbon that is in plants moves to the animals that eat them. Animals that eat other animals get the carbon from their food too.
Carbon moves from plants and animals to soils. When plants and animals die, their bodies, wood and leaves decays bringing the carbon into the ground. Some is buried and will become fossil fuels in millions and millions of years.
Carbon moves from living things to the atmosphere. Each time you exhale, you are releasing carbon dioxide gas (CO2) into the atmosphere. Animals and plants need to get rid of carbon dioxide gas through a process called respiration.
Carbon moves from fossil fuels to the atmosphere when fuels are burned. When humans burn fossil fuels to power factories, power plants, cars and trucks, most of the carbon quickly enters the atmosphere as carbon dioxide gas. Each year, five and a half billion tons of carbon is released by burning fossil fuels. Of this massive amount, 3.3 billion tons stays in the atmosphere. Most of the remainder becomes dissolved in seawater.
Carbon moves from the atmosphere to the oceans. The oceans, and other bodies of water, absorb some carbon from the atmosphere. The carbon is dissolved into the water.
Carbon dioxide is a greenhouse gas and traps heat in the atmosphere. Without it and other greenhouse gases, Earth would be a frozen world. But since the start of the Industrial Revolution about 150 years ago humans have burned so much fuel and released so much carbon dioxide into the air that global climate has risen over one degree Fahrenheit. The atmosphere has not held this much carbon for at least 420,000 years according to data from ice cores. The recent increase in amounts of greenhouse gases such as carbon dioxide is having a significant impact on the warming of our planet.
Carbon moves through our planet over longer time scales as well. For example, over millions of years weathering of rocks on land can add carbon to surface water which eventually runs off to the ocean. Over long time scales, carbon is removed from seawater when the shells and bones of marine animals and plankton collect on the sea floor. These shells and bones are made of limestone, which contains carbon. When they are deposited on the sea floor, carbon is stored from the rest of the carbon cycle for some amount of time. The amount of limestone deposited in the ocean depends somewhat on the amount of warm, tropical, shallow oceans on the planet because this is where prolific limestone-producing organisms such as corals live. The carbon can be released back to the atmosphere if the limestone melts or is metamorphosed in a subduction zone.
The technique of asexual reproduction most commonly used in the production of fruit trees is _____.regenerationbuddinglayeringadventitious rooting
Answer:
biofactory
Explanation:
Please answer me in struggling so much with this
Salt water crabs have the same proportion of salt in their cells as the water that they live in considering this, what would happen to the cells of a crab if you put it in the fresh water, why?
Answer:I believe the cells would burst.
Explanation:
Water would keep moving in because of the imbalance.
Why do different types of cells have different structures/ shapes
Answer:
Cells have different shapes because they do different things. The shapes of cells have evolved to help them carry out their specific function in the body, so looking at a cell's shape can give clues about what it does. Neurons are cells in the brain and nervous system.
Explanation: Brainlest plz?
Explanation:
Cells have different shapes because they do different things. ... The shapes of cells have evolved to help them carry out their specific function in the body, so looking at a cell's shape can give clues about what it does. Neurons are cells in the brain and nervous system.
help plz timed
What is the function of cellular respiration in plants?
to make sugars
to use up carbon dioxide
to break down sugars
to absorb sunlight
The function of cellular respiration in plants is to break down sugar
Set up a Punnett square using the parent genotype listed below (Round seeds are dominant to wrinkled seeds)
RR X Rr
What % of the offspring will be round?
0
25
50
75
100
Answer:
The correct answer would be - 100
Explanation:
It is given that round seeds caused by allele R is dominant over the r which is responsible for the wrinkled seeds. The cross between plants with RR which is round seed and Rr that is heterozygous for the round seed plant,
The possibilities of the round seed plant by the above cross can be found with the help of Punnett square:
Gametes: R, R and R, r
Cross
R R
R RR RR
r Rr Rr
There are two dominant and two heterozygous round seed offsprings produces, however phenotypically all the offsprings are round, therefore 100% of the offspring will be round.
IT'S AN EMERGENCY PLEASE HELP ME!!!!!!!!!!!!!!!!!!!!!!!! PLEASE I NEED HELP ASAP PLEASE HELP!!!
Which of the following is multicellular?
Human cheek
Sand
Bacteria
(This is 7th grade science).
Answer:
Human cheek
Explanation:
Adaptation is -
A. the ability to change to fit one’s environment
B. a trait that helps an organism survive and reproduce
C. being the biggest organism in a population
D. turning a popular book into a movie
In which scenario would you have the most applied pressure? A. The tip of a nail B. The eraser end of a pencil C. The bottom of a gym shoe D. A table top
Answer:
C. The bottom of a gym shoe
Explanation:
Describe one similarity and one difference between the two terms in each of the following pairs. 1. biosphere, ecosystem 2. hypothesis, theory 3. accuracy, precision
Answer:
Explanation:
6 A person becomes infected with a pathogen, such as a virus. What internal stimulus most
likely takes place in order for their body to maintain homeostasis?
А
Dehydration due to lack of water
B
Their core temperature increases
с
The production of hormones is activated
D
Sweating occurs to help cool the body down
Answer:
B. Their core temperature increases.
Explanation:
Pathogens are organisms such as virus, fungi, bacteria, protozoa, worms that causes diseases to its host.
Homeostasis can be defined as a process through which a living organism maintains a steady or stable physical, internal and chemical environment ideal to enhance life and proper functionality.
If a person becomes infected with a pathogen, such as a virus. The internal stimulus that most likely takes place in order for their body to maintain homeostasis is that their core temperature increases. This is because pathogens such as a virus do not thrive or survive in a hot environment; they're naturally allergic to high temperature (heat).
Additionally, in order to reduce pathogens and prevent illness, it is very important to cook our food to high degrees of temperatures. These pathogens are usually destroyed by heat, so it's necessary and important to properly cook food to a high temperature by grilling, boiling, frying, roasting and baking. Also, a hot-holding unit can be used to store food in order to reduce pathogens.
What is the end result of Meiosis?
1: 4 haploid daughter cells
2: 2 haploid daughter cells
3: 4 diploid daughter cells
4: 2 diploid daughter cells
PLEASE HELP ILL GIVE BRAINLYEST ANSWER!!!
When plant seedlings emerge from the ground, the leaves always
grow upwards while the root system grows downward into the
ground
Explain the force used by plants to determine their growth
direction
Gravitropism ensures that roots grow into the soil and that shoots grow toward sunlight. Growth of the shoot apical tip upward is called negative gravitropism, whereas growth of the roots downward is called positive gravitropism.
write a short story (at least a paragraph and a half long) explaining the rock cycle
The Rock Cycle
by _________________
The rock cycle is a process in which rocks are continuously transformed between the three rock types igneous, sedimentary and metamorphic .Conversion to metamorphic rocks requires conditions of increased temperature and/or increased pressure, conversion to sedimentary rocks occurs via the intermediate stage of sediments, and conversion to igneous rocks occurs via the intermediate stage of magma. Increased temperature and pressure occurs in subduction zones and in areas where two plates of continental lithosphere collide to produce a mountain range, while increased pressure without increased temperature is produced when sedimentary rocks are deeply buried under more sediments. Sediments are produced when rocks are uplifted, weathered and eroded, and the resulting detrital material deposited in marine or terrestrial basins. If the sediments are buried under further layers of sediment, they can become lithified to produce a sedimentary rock. Magma is produced when rocks are melted. This melting can occur when a lithospheric plate descends into the Earth’s crust at a subduction zone, or when a mid-ocean ridge opens up and produces decompression melting in the athenosphere under the ridge. When the magma solidifies, it becomes an igneous rock.
The rock cycle has many alternative pathways. The following diagram illustrates one of these and gives an indication of the plate tectonic setting where it occurs:
Select the correct answer from each drop-down menu.
In an experiment, Dr. Travis examined the effects of calcium intake on osteoporosis, a condition that causes an increased risk of bone fractures. The amount of calcium is what
variable. The risk of bone fractures can be changed by what?
.
Answer:
By consuming necessary amount of calcium per day.
Explanation:
The amount of calcium is recommended for adults are 1000 mg per day whereas for aged people, it should be 1200 mg per day and for children it becomes 1300 mg per day in order to make the bones stronger and avoid the risk of fracture. The risk of bone fractures can be changed by consuming the recommended amount of calcium through your diet.
Create a new sentence to help remember the names of the eight planets, in order.
Answer:
My very educated mother just served us noodles
Explanation:
I just made that up, have a good day
My Very Easy Method Just Speeds Up Names
M=Mercury
V=Venus
E=Earth
M=Mars
J=Jupiter
S=Saturn
U=Uranus
N=Neptune
Connective tissue provides which of the following functions? (Multiple answers)
1) support and structure
2) excretion
3) absorption
4) transportation of fluids
Answer:
1. support and structure. 4. transportation of fluids.
Explanation:
Answer:
1) support and structure
and
4) transportation of fluids
Explanation:
What is the correct definition of ellipse? i need this ASAP
circle that is stretched out a little on both sides
squished circle
perfectly round circle
Answer:
it's an oval so prob the first answer
Do humans have the right to colonize other planets, such as Mars? What challenges will humans have colonizing Mars?
If you take a look at evolution on Earth, 99.9 percent of all life forms have gone extinct. When things change, either you adapt or die. That’s the law of Mother Nature. We face various hazards. First of all, we have self-inflicted problems like global warming, nuclear proliferation and bio-engineered germ warfare. Plus, Mother Nature has hurled at the Earth a number of extinction cycles. The dinosaurs, for example, didn’t have a space program. And that’s why the dinosaurs are not here today.
So i thiink the answer is yes?
Why is damage to some organs, particularly those whose cells are commonly in the G0 phase, so challenging to heal?
Answer:
because all the white cells are rushing to patch the damaged area to prepare for healing