Answer:
before puberty begins
Explanation:
because on your menstrual cycle the blood clots are actually pieces of uterus and that's actually your uterine shedding and it usually starts doing that even before your period begins so it definitely be before puberty begins hope I didn't make the answer to awkward but that's the truth LOL
The periodic shedding of the uterine lining usually takes place before puberty begins. The correct option is D.
Thus, An egg is released from the ovary into the fallopian tube during ovulation, which happens roughly halfway through a woman's menstrual cycle. The uterine lining that was developed to support a potential pregnancy is no longer required if fertilization of the egg by a sperm does not take place.
The uterine lining sheds as a result, causing menstruation, often known as the monthly menstrual cycle. In a typical 28-day menstrual cycle, this shedding typically takes place around 14 days following ovulation.
In females of reproductive age, menstruation is a normal process that lasts until menopause, at which point it ceases. Menstruation is a component of the menstrual cycle.
Thus, The periodic shedding of the uterine lining usually takes place before puberty begins. The correct option is D.
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Carbon is an organic element found in all life forms. Which of the following occurs through the process of
breaking down carbon-based molecules?
A. Water molecules are transferred through the body.
B. Elimination of waste products occurs.
C. Energy needed for life functions is released.
D. Absorbing of oxygen through pores occurs.
Answer:
C is the Answer.
Explanation:
Carbon is an organic element which when broken down will release energy within an organism.
Process of elimination
A: Wrong because Water has nothing to do with carbon being broken down.
B: Wrong because when carbon is broken down no waste products are being eliminated.
C: Right because Energy is released when Carbon is broken down
D: Wrong because Carbon being broken down has nothing to do with oxygen being absorbed.
Worth 30 points, and I will recommend you! PLS!
If the primary consumer level contained 1,500 kcal (joules) of energy, how much energy would be in the tertiary consumer level?
Answer:
15
Explanation:
Divide by 10%
1500
to
150
to
15
A scientist helps a colleague do a better experiment by:
O A. laughing when a common and avoidable mistake is repeated.
B. offering advice about how best to perform a standard procedure.
C. explaining why a hypothesis does not need to be tested in an
experiment.
D. refusing to allow anyone else to use an expensive instrument.
Answer:
B. Offering advice about how best to perform a standard procedure.
Explanation:
Helping others can be in different ways, be it helping out or by giving encouraging words or advice. But in all aspects of help, there is always a positive outcome if help is given in the right way and at the right time. And it is also how one person lifts another.
A scientist can help a colleague out by offering advice and telling the person how to best perform a standard procedure. This will help the colleague do better in the experiment and also help ensure that the right things are done and the efforts are successful. The other options are all negative in their 'approach' which will only hinder the colleague in his/her works.
Thus, the correct answer is option B.
Answer:Offering advice about how best to perform a standard procedure.
If a mutation introduces a new skin color in a lizard population, which factor might determine whether the frequency
(presence) of the new allele will increase?
A)The size of the population
B)The fitness benefit of the mutation
C)How many other lizards have the mutation
D)Whether or not the mutation occurred naturally
______ occurs because the nervous systems send messages to the muscles in the muscular system.
(I need someone to fill in this blank with the best possible answer, I’ll reward points + brainalist)
Answer:
action potentials
Explanation:
other possible answers:
electrical impulses
muscular contractions
action potentials is likely your best bet though
Explanation:
Neurons carry messages from the brain via the spinal cord. These messages are carried to the muscles which tell the muscle fibre to contract, which makes the muscles move.
True or false please be experienced and know what you are doing. If you are not good at life science please skip this question.
well, i think the first one is false because plants dont produce sexually
the second one is false
third- please fact check me ut i think its true
forth is true
true
true
true
true
true
please fact check me i grow plants but im not a scientist lol
14. Which of the following is not a way in which humans improve biodiversity?
O Introduction of invasive species
O Removal of pollutants
O Reducing fertilizer loads
Restoration of local communities
O Building artificial reefs
The introduction of invasive species is not a way to improve biodiversity.
• An organism, which causes economic or ecological harm in a new environment where it is not native is known as an invasive species.
• It can harm the natural resources in an ecosystem and at the same time can hamper human use of these resources.
• An invasive species can be a kind of plant, amphibian, insect, fungus, fish, bacteria, etc. and is not native to an ecosystem and results in harm.
• They possess the tendency to cause extinctions of native animals and plants, decline biodiversity, by competing with local species for limited resources, and changing habitats.
Thus, introducing invasive species is not a way by which humans can improve biodiversity.
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2
Which statements about humus are true? Choose more than one
answer
It forms from dead plants
It collects in bedrock
It fertilizes soil
It contains carbon
It is only found in topsoil
It erodes the rocks in soil
It forms from dead plants
It fertilizes soil
It contains carbon
It is only found in topsoil (not sure abt this tho)
Humus forms from dead plants, fertilizes soil, contains carbon, and is only found in topsoil. The correct options are A, C, D, and E.
What is humus?When plant and animal debris decomposes in the soil, humus, a black, organic substance, is created.
Plants scatter leaves, twigs, and other debris to the ground, which accumulates. Leaf litter is the name of this substance. Animal carcasses contribute to the litter after they pass away.
Humus is a form of soil produced by decomposing organisms and plants.
The name was developed by a French soil expert named Muller and is based on the Latin word "soil". Humus is challenging to define and is still not completely understood.
Only found in topsoil, humus is a material that develops from dead plants, fertilizes the soil, and contains carbon.
Thus, the correct options are A, C, D, and E.
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Fossil fuels are the carbon remains of plants and animals that died long ago.
True
False
Answer:
The answer is True
Explanation:
Answer:
True
Explanation:
They are remains of died plants and animals
Which of the following occurs during
telophase and cytokinesis?
A. the division of the cell's nucleus
B. the cell's DNA is copied
C. the division of the cell's cytoplasm
D. cell division into two identical daughter cells
cytokinesis is when the cell divides
telophase is when it coppies itself befor it splits
i hope that maybe helped a small bit atleast
which of the following is most likely to occur when a barrier develops between two populations of the same species?
1. gene flow between the groups will increase due to more diversity between them
2. the species will become more distinct from each other
3. both groups will go extinct because there are not enough individuals to support them
4. individuals will develop adaptations that allow them to rejoin the other population
Answer:
The answer is 2
Explanation:
If the populations are separated from each other, they will start to be more diverse.
what is the essence of recognizing the different species of organism in our country 1 paragraph pls
Answer:
To maintain equilibrium.
Explanation:
The essence of recognizing the different species of organism is very important in our country because we can avoid certain activities that leads to the extinction of that species. Recognizing the nature of a specie is necessary in order to provide good and suitable environmental conditions to the organisms and avoid those activities due to which its growth is negatively affected and leads to removal of that specie from ecosystem so that's we can say that the essence of recognizing the different species of organism is very important to maintain equilibrium in the ecosystem.
Which characteristic of life best describes the process of homeostasis?
Answer:
Responding to stimuli / the environment
Explanation:
Answer:
A
Explanation:
How do stories differ from scientific explanation?
Codominance involves
A. multiple alleles
B. multiple genes
C. multiple chromosomes
D. multiple traits
Answer:
Codominance involves A.) multiple alleles
Answer:
A.) multiple alleles
Explanation:
.
Discuss the orogenies that produced the Appalachian Mountain Range. Include in your answer the timing, process, and resultant sedimentation patterns. Include additional Paleozoic orogenic events to strengthen your answer if need be.
Answer:
Explanation:
Appalachian orogenic belt, an old mountain range that extends for more than 3,000 km (1,860 miles) along the eastern margin of North America from Alabama in the southern United States to Newfoundland, Canada, in the north. The geosynclinal theory of mountain building was first worked out in the Appalachians by James Dana and James Hall in the late 19th century; today a plate tectonic theory is invoked. The earliest Appalachian sediments were deposited near the start of the Cambrian Period (542 million years ago) on the shores of the opening Iapetus Ocean. Subduction of the Iapetus led to its destruction and the collision of different continental blocks and island arcs. Those collisions gave rise to three Appalachian orogenies: the Taconic in the Middle Ordovician (about 472 million years ago); the Acadian in the Middle to Late Devonian (at 390 million to 370 million years); and the Alleghenian in the Late Carboniferous to Permian (300 million to 250 million years ago). The age of these orogenies decreases eastward across the orogenic belt, demonstrating that it was formed by the progressive eastward addition of arcs and continental fragments to the continental margin of North America. The Appalachian belt continues to the east in the form of the Caledonian and Hercynian orogenic belts in western Europe. The Alleghenian orogeny led to the formation of the Pangaea supercontinent during the Permian Period (299 million to 251 million years ago). Geophysical seismic studies show that the southern Appalachian Mountains comprising the Ridge and Valley region, the Blue Ridge Mountains, and the Piedmont region belong to a crustal slab some 6–15 km (3.7 to 9.3 miles) thick that has been thrust 260 km (162 miles) westwards over the former continental margin.
Which of these body systems has cells that attach to each other to form a leak-proof barrier?
Select one:
Endocrine system.
Respiratory system.
Reproductive system.
Urinary system.
How is the Grants' work similar to Darwins?
Answer:
The Grants study the evolution of Darwin's finches on the Galapagos Islands. The birds have been named for Darwin, in part, because he later theorized that the 13 distinct species were all descendants of a common ancestor. ... (The only other finch on the island is the cactus finch.)
Explanation:
I’ll give points + brainalist for the correct answer (:
[NAA]
Excuse me, i can't quite see the question and the answers.
May you please ask again?
[xArtsy]
Consider the path that blood takes through the heart and put the following locations in the correct order. The starting point is blood returning to the heart from
systemic (body) circulation.
1. out to the lungs
2. right atrium
3. left ventricle
4. back from the lungs
5. left atrium
6. right ventricle
7. aorta out to systemic (body) circulation
O A6, 2, 1,4,3,5,7
B.2.5, 1,4,6,3,7
C.2.6,1.4,5, 3, 7
O 0.5,3, 1, 4, 2, 6,7
Answer:
C
Explanation:
If a natural hazard only harms plants (like consumers), how will that impact producers????
PLZ, I NEED HELP NOW!
Describe the structure of DNA.
Answer:
Explanation:
The DNA structure can be thought of like a twisted ladder. This structure is described as a double-helix, as illustrated in the figure above. ... The sugar and phosphate groups link the nucleotides together to form each strand of DNA. Adenine (A), Thymine (T), Guanine (G) and Cytosine (C) are four types of nitrogen bases.
Which process of alimentary canal that remove undigested food from body? *
3 points
A. Egestion
B. Ingestion
C. Assimilation
Answer:
A. Egestion
Explanation:
Egestion is the removal of undigested food from body.
A garden contains 40 flowers, 30 of which are red. What is the frequency of red flowers? (1 point)
O 0.5
O 1.0
O 0.25
0 0.75
The first step of the design process is to
A.
form a prediction about the design.
B.
study the uses of technologies over the history of the Earth.
C.
identify a problem that needs to be solved.
D.
copy the design of the most successful technology of the day.
Answer::::::::::::::::::::C
A number of major evolutionary innovations arose in the fish lineage. Check all of the evolutionary innovations associated with the fishes.
a) Teeth arose from the rough scales of ancestral sharks.
b) Skeletal developments leading to the amphibian movement onto land probably evolved from lobe-finned fishes.
c) Fish fins are ancestral (homologous) structures to the flippers (forelimbs) of turtles.
d) The anterior gill arch formed the basis for the evolution of the vertebrate jaw.
e) The swim bladder ultimately led to the evolution of the amphibian urinary bladder.
Answer:
a) Teeth arose from the rough scales of ancestral sharks.
b) Skeletal developments leading to the amphibian movement onto land probably evolved from lobe-finned fishes.
d) The anterior gill arch formed the basis for the evolution of the vertebrate jaw.
Explanation:
The animals we know today have physical characteristics that are evolutionary adaptations of characteristics of their ancestors, which have undergone a series of evolutions and modifications over the years giving rise to new species that have resulted in the species we know today. This process of evolutions and adaptations also happened with the ancestral species of fish, which allowed that today, they had characteristics such as teeth and jaws. Many of these evolutions occurred even in different species, such as the evolution that allowed the amphibians to have a skeleton, which evolved from the spine fins of fish.
In a straight stream, where does the water travel the fastest?
Answer:
In the center of the stream well above the bottom of the bed or channel but below the surface.
Can you please help me
Bacteria are decomposers that live in soil and water. They feed on dead plants and animals and break them down into simpler elements.
How does the work of decomposers help the ecosystem?
Answer:
Decomposers play a critical role in the flow of energy through an ecosystem. They break apart dead organisms into simpler inorganic materials, making nutrients available to primary producers.
Explanation:
6. What is the most important factor used in determining an igneous rock's texture?
Answer:
The texture of a rock refers to the size, shape and arrangement of the mineral grains in the rock that give the rock its overall appearance. The most important, but not only, a factor that controls the grain size of a rock is its cooling history.
Answer:
its multiple
Explanation:
smoothness with glass like features