This image shows the many
arteries and veins making up
the circulatory system. Which
of these delivers OXYGEN-
POOR blood from the body
back to the heart?
A. arteries
B. veins
C. neither of these
Answer:
B
Explanation:
Define bottleneck effect.
Koyi hai? ✌️
Answer:
When disaster strikes, an ecosystem can change very quickly. When an event causes a drastic decrease in a population, it can cause a type of genetic drift called a bottleneck effect.Hope this helps ~Answer:
The bottleneck effect is an extreme example of genetic drift that happens when the size of a population is severely reduced. Events like natural disasters (earthquakes, floods, fires) can decimate a population, killing most individuals and leaving behind a small, random assortment of survivors.
Answer to this please.
Which part would best model a cells nucleus
Answer:
which part of what
Explanation:
Lipids are what?
proteins
acids
fats
amino groups
Need answers for this
Thanks
Answer:
IT is going to be the color purple since there is no sunlight hitting tube A which means no carbon dioxide
Explanation:
Which instruments has indefinite pitch
65 points, anwser asap, graph below
What is happening to the deer population between the years 2005 to 2010? Support with reasoning from our model of population growth.
Answer:wolves
Explanation:
wolves decreased the population because they kept increasing so people killed the and a couple of years later they went up the so they brought wolves back!
What is carbon?
A. an element
B. a compound
C. an
organism
15. Stephanie made the following chart for the terrestrial planets. What correction needs to be made?
Mercury
Venus
Earth
Mars
no atmosphere
very thick atmosphere
medium atmosphere
no atmosphere
1st planet
2nd planet
3rd planet
4th planet
1 year is shorter than Earth's year.
1 year is short than Earth's year.
1 year is approximately 365 days.
1 year is longer than Earth's year.
O Mars's year is shorter than Earth's year.
O Mercury's year is longer than Earth's year.
A
O Mars has a thin atmosphere
O Earth is the 2nd planet and Venus is the 3rd.
Answer:
c. mars has a thin atmosphere
Explanation:
i hope that helps even though its a few days late
Which freshwater biome has the highest organism diversity of all the freshwater biomes?
wetlands
streams and rivers
ponds and lakes
estuaries
can someone please help me on this all u have to do is search up on the internet and then put down 4 facts that are mentioned in the web site and give the main idea to but make sure I know were the main idea is
web site: should we bring back extinct species
The proccess of photosynthesis can be represented by the chemical formula _________
Answer:
6H2O + 6CO2 ----- C6H1206 + 6O2
b) Give an example of an animal with radial symmetry and an example of an animal with bilateral
symmetry. (2 points)
Answer:jellyfishes, corals, anemones, and ctenophora.
Explanation:
Examples of animals that possess bilateral symmetry are: flatworms, common worms ("ribbon worms"), clams, snails, octopuses, crustaceans, insects, spiders, brachiopods, sea stars, sea urchins, and vertebrates.
Which two soil conservation techniques would be best to use on gentle slopes?
Answer:
planting trees
contuor farming/building of porous dams
The molecules in this diagram are moving in a
A) random motion from one part of a membrane to another, from a higher concentration to a lower concentration.
B) random motion from one part of a membrane to another, from a lower concentration to a higher concentration.
C) straight line motion from one part of a membrane to another, from a higher concentration to a lower concentration.
D) straight line motion from one part of a membrane to another, from a lower concentration to a higher concentration.
Answer:
A) random motion from one part of a membrane to another, from a higher concentration to a lower concentration.
Answer:
B
Explanation:
random motion from one part of a membrane to another, from a lower concentration to a higher concentration.
The question 38 I can’t understand the question clearly
Answer:
The words are too blur for me darlingExplanation:
Maybe next time^^
P I E C K___________
Does the light independent pathway of photosynthesis continue to occur when the leaf disks are placed in the dark environment
Yes, the light independent pathway of photosynthesis continues to occur when the leaf disks are placed in the dark environment.
What is photosynthesis?“The process by which green plants make their own food in presence of sunlight, chlorophyll and carbon dioxide is called photosynthesis.”In this process oxygen molecule is released as by product.It has two pathways: light dependent and light independent.
In light dependent pathway, light energy is used by chlorophyll and is converted into chemical energy.In light independent pathway, the energy produced during light dependent pathway is used to convert carbon dioxide into carbohydrates. It occurs in the stroma of the chloroplast.Hence, it is true that the light independent pathway of photosynthesis continues to occur when the leaf disks are placed in the dark environment.
To know more about light independent reaction here
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10. A Rock is a
type of rock that
forms from an
existing rock that is
changed by heat.
Answer:
yes
Explanation:
that is indeed the definition of a ROCK.
Discuss the arguments for and against genetic therapy and genetic engineering.
Answer:
Reasons to ban germline gene editing include the profound risks to future children, thin medical justifications, reinforcing existing inequalities and creating new forms of discrimination, eroding public trust in responsible science, and undermining global agreements.
Explanation:
ppbag at it again
Many livestock are being grazed on public lands because the fees to graze on public lands are cheaper than the fees for private lands. If we aren't careful, what can this cause? A. owners moving their livestock TO private lands B. increased fees for private lands C. overgrazing on public lands D. overgrazing on private lands
Answer:
I would say that this would cause "overgrazing on public lands."
Explanation:
When people see that the fees are cheaper, they would send their livestock there. It might be alot of livestock though
Anaerobic respiration occurs when
a. There is too much oxygen to do aerobic respiration
b. Photosynthesis cannot take place
c. There is not enough oxygen to do aerobic respiration
d. It is usually occurring in your body
I think the answer is A.
what happens when an acid is added to a solution?
Answer:
pH is a measure of the concentration of H3O+ ions in a solution. Adding an acid increases the concentration of H3O+ ions in the solution. ... If an acid is added to a basic solution, the solution becomes less basic and moves toward the middle of the pH scale. This is called neutralizing the base.
What is the relationship between the number of blood cells in the body and illness?
Answer:
Variations from the normal number, size, or maturity of the blood cells can be used to mean there is an infection or disease process. Often with an infection, the number of white blood cells will be elevated.
Which of the following are characteristics of the tundra biome? (Choose all that apply.)
much rainfall throughout the year
low biodiversity
very cold temperatures
lack of trees
A lack of trees, a lack of biodiversity, and extreme circumstances are what most clearly identify the tundra.
What is Tundra Biome?The polar ice caps and the boreal woodlands (also known as taiga), it is located. Extremely low temperatures and barren, icy terrain define the tundra biome. The arctic tundra and the alpine tundra are the two different forms of tundra.
The Tundra Biome: The Ice Deserts of the World. The tundra is the coldest biome, with an average annual temperature of less than 5°C and yearly precipitation of less than 100 mm, most of it snow.
Only a few number of plants and animals can even thrive on the tundra due to its extreme weather conditions. The Finnish term "tunturia" is where the word "tundra" originates.
Therefore, a lack of trees, a lack of biodiversity, and extreme circumstances are what most clearly identify the tundra.
To learn more about Tundra biome, refer to the link:
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Mia and Raphael are discussing the ketogenic diet, also known as Keto, as a way of losing weight. Using the Keto method depends on changing the proportions of nutrient macromolecules that are eaten
daily to adjust energy metabolism. Which group of macromolecules can be affected by Keto eating choices, and is used for long term storage plus happens to be insoluble in water?
O carbohydrates
Ads
O nucleic acids
O proteins
The group of macromolecules that can be affected by Keto's eating choices, and is used for long-term storage, in addition to being insoluble in water, is lipid.
The ketogenic diet consists of significantly reducing the amount of carbohydrates ingested daily and adding more fat to the diet.
After about three weeks of reducing carbohydrates from the diet, the body enters a metabolic state called ketosis, turning stored fat as the body's energy source.
Therefore, the ketogenic diet can bring benefits to the individual, such as accelerated weight loss and prolonged satiety, but it can also be a difficult diet to follow for long periods, as it is more restrictive.
The ideal, then, is always to seek specialized help when you want to achieve some aesthetic or health goal related to weight loss, so that the professional can develop a diet focused on the needs and individualities of each one.
Learn more about ketogenic diet here:
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Which best describes a temperate deciduous forest?
(A) Seasons are well defined,
(B) Short growing season,
(C) Low rainfall,
(D) all of the above.
Answer:
I think its D all of the above
vermiform appendix is a vestigial organ in human being give reason.
Answer:
The human appendix may be considered as a vestigial organ as it has been proved that the removal of the organ after infancy does not create any harm. Vestigial in that sense means that the vermiform appendix seemingly has no functions or is useless now but they might have had functions previously which are lost someway due to evolution.
Explanation:
Vestigial organs are organs, tissues or cells in a body which are not functional anymore the way they were in their ancestral form of the trait. It is therefore authentication of evolution and hence were helpful in explaining adaptation.
Describe the ovary of the flower
Explanation:
Enlarged basal portion of the pistil, the female organ of a flower. The ovary contains ovules, which develop into seeds upon fertilization.
If a cell has 8 chromosomes, how many chromosomes will each of its daughter cells have after mitosis?
Answer:
From what I remember in my 9th grade biology class, it's usually half that amount.