Answer:
A scientific theory is a well-tested explanation for a wide range of observations or experimental results.
Explanation:
As plants diverged from a common ancestor, characteristic features evolved that distinguished
the main plant groups from one another. Which statement shows the evolutionary sequence in
which these features developed?
A. vascular tissue, seeds, flowers
B. seeds, vascular tissue, flowers
C. flowers, seeds, vascular tissue
The statement 'vascular tissue, seeds, flowers' shows the evolutionary sequence in which plant features developed (Option A).
What is evolution?Evolution means descendence with modification, which mainly occurs due to natural selection.
In terrestrial plants, the main evolutionary feature that emerged was the appearance of vascular tissues.
Subsequently, terrestrial plants evolved to produce seed plants and then flowers (angiosperm plants).
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make a poem about taking care of your reproductive system
Answer:
in a dark classroom on a friday
afternoon my teacher told me something
beautiful.
ovaries, she said, have
the same salt content as
the sea. you have
little oceans inside of you!
I imagined the protozoa, the
primordial soup, the sand,
I felt the pull deep inside of
the moon tugging life
from my body.
I felt that potential for life
crown and break beneath
my skin, and it felt beautiful,
yes, but I couldn’t stop myself from placing
a hand on my belly and thinking,
all this life will end with me.
True or false? Prokaryotic cells are significantly smaller then eukaryotic cells.
Answer: False
Answer: Cell Size. At 0.1–5.0 µm in diameter, prokaryotic cells are significantly smaller than eukaryotic cells, which have diameters ranging from 10–100 µm (Figure 3.7). The small size of prokaryotes allows ions and organic molecules that enter them to quickly spread to other parts of the cell.
Explanation:
Which of these planets has characteristics most similar to Saturn?
Jupiter, Uranus, and Neptune
Mercury, Venus, and Earth
O Venus, Earth, and Mars
Earth, Mars, and Saturn
Enzymes are a diverse group of biological catalysts.Enzymes act as catalysts , because they?A. Give us immediate quick energy
B.Speed up chemical reactions in our body by lowering energy
C. Increase the amount of energy needed to break down substrates.
D. Can act on any substrate molecule at any time
Answer:
B
Explanation:
Enzymes in our bodies are catalysts that speed up reactions by lowering the activation energy necessary to transform a reactant into a product.
On the Galápagos Islands, Charles Darwin observed Question 1 options: completely unrelated species on each of the islands. species exactly like those found in South America. species similar to mainland South American species. species completely unrelated to those found in South America.
We can confirm that on the islands, Charles Darwin observed species similar to mainland South American species and to those found on the other islands.
What did Darwin notice about these species?Darwin noticed that each of these species were very similar, but possessed slightly different traits. These traits seem to perfectly fit the needs of each species for their specific island, leading to his creating the theory of evolution through natural selection.
Therefore, we can confirm that on the islands, Charles Darwin observed species similar to mainland South American species and to those found on the other islands.
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Just answer number 3
Which statement describes the difference between ectothermic and endothermic animals?
Question 5 options:
Ectothermic animals live in cold climates, and endothermic animals live in warmer places.
Ectothermic animals live in the water, and endothermic animals live on the land.
Ectothermic animals have a lower body temperature than endothermic animals.
Ectothermic animals have a body temperature that is the same as their environment, and endothermic animals have a constant body temperature.
Answer:
Statement D
Explanation:
Ectothermic means cold-blooded, which means they can not generate there own heat or maintain a constant body temp.
But us as humans are Endothermic because we remain at a constant body temp, also known as warm-blooded.
Many birds will ________ in the spring.
A. grow feathers
B. hibernate
C. lay eggs
D. become less active
Answer: I think is C
Explanation: if I wrong then I’m sorry so much and I hope you get right
1. Give two reasons why preserving biodiversity is important to humans
Answer:
hope this Wil help
Explanation:
biodiversity provides functioning ecosystems that supply oxygen, clean air and water, pollination of plants, pest control, wastewater treatment and many ecosystem services
Help please ASAP
Which action would best help a person prepare for a power outage during a
blizzard?
A. Planning for safely heating their home
B. Boarding up windows
C. Stocking up on entertainment media
D. Planning a daily exercise routine
Answer:
I think it's A
Explanation:
Since C and D don't have to do with a power outage
B won't help either
Answer:
A
Explanation:
A. Planning for safely heating their home
how blood clotting occurs
Answer:
Your answer would be:
A blood clot occurs when there is damage to a blood vessel.
Explanation:
Have a great rest of your day
#TheWizzer
Answer:
Proteins in your blood called clotting factors signal each other to cause a rapid chain reaction. It ends with a dissolved substance in your blood turning into long strands of fibrin. These get tangled up with the platelets in the plug to create a net that traps even more platelets and cells.
Explanation:
hope this helps
Spinal Nerve
A. have both motor neurons and interneurons
B. send impulses in two directions
C. make up the vertebra of the spine
D. contain only sensory axons
Which type of river is healthier for ecosystems?
A. channelized
B. meandering
Meandering
Explanation:
If u meander, then ur healthy
Convert 650 mm Hg to kPa and atm
Why might using other sources of power, like wind and solar energy, help to slow global warming? A. All types of energy cause global warming to increase. B. Wind and solar energy require heat from the sun, which would lower global temperatures. C. Wind and solar energy do not require the use of fossil fuels. D. Wind and solar energy use carbon dioxide, which would help remove it from the atmosphere.
Answer:
c
Explanation:
fossil fuels release greenhouse gasses into the atmosphere, not using them would end a lot of that pollution, thus lowering global warming
4. Which statement describes the nutrient cycle?
the movement of nutrients within plants that allows them to conduct photosynthesis
the movement of nutrients within all soil layers that allow plants to grow and seeds to germinate
the movement of the three non-mineral nutrients that are absorbed through the soil
the movement of nutrients from the physical environment into living organisms and back again
Answer:
The correct answer is - the movement of nutrients from the physical environment into living organisms and back again
Explanation:
Answer:
D/ The movement of nutrients from the physical environment into living organisms and back again.
Explanation:
I took the test and got it right
Which option best characterizes the following passage in regard to recent developments in agriculture?
“Combined investments helped discover and develop farming equipment, which resulted in higher yields and the need for fewer farming personnel.”
Farms provide fewer jobs compared to agricultural research and development.
Farms provide fewer jobs compared to agricultural research and development.
Farming equipment use eventually turns farms into mass-producing factories.
Farming equipment use eventually turns farms into mass-producing factories.
Farming equipment is more expensive now than it was fifty years ago.
Farming equipment is more expensive now than it was fifty years ago.
Farms now produce more crops, creating a need for more farm workers.
Answer:
Farming equipment is more expensive now than it was fifty years ago
Explanation:
much more technology goes to farm equipment. A combine could cost more them a $ 500k
Answer: Farms provide fewer jobs compared to agricultural research and development.
Explanation: i got it right on edge
Why is the enzyme telomerase important in some cells?.
Answer:
✒️ Answer:Abstract. Telomerase is the enzyme responsible for maintenance of the length of telomeres by addition of guanine-rich repetitive sequences. Telomerase activity is exhibited in gametes and stem and tumor cells.
Explanation:
#CarryOnLearning[tex]watch.some.anime[/tex]
!20POINTS!
Analyze the graph and identify some factors that may contribute to the rotifer population leveling off in the absence of water fleas. Explain your answer in 1–2 sentences.
Answer:
(Leveling off = it stays the same even though it had a increasing period) When looking at the end of the graph you can see that it came back to what it was, which means the rotifers are not increasing anymore. That's because of the carrying capacity (a species' average population size in a particular habitat), and the carrying capacity in this situation is the flask. Therefore the flask has limited space.
1. What is the significance of the specific gravity of the abnormal urine?
Answer:
A very high specific gravity means very concentrated urine, which may be caused by not drinking enough fluid, loss of too much fluid (excessive vomiting, sweating, or diarrhea), or substances (such as sugar or protein) in the urine.
Explanation:
Urine specific gravity is a significant and convenient way to measure the abnormal urine. It indicates dehydration or presence of substances in the urine as in case of diabetes.
What is Specific gravity?
Urine specific gravity (USG) measures the concentration of particles which are present in the urine and the density of urine compared with the density of water. Measurement of USG is an easy way and very convenient way to know a patient's hydration status as well as the functional ability of kidneys.
Urine specific gravity falls between the range of 1.002 and 1.030 if the kidneys are functioning normally. However, if specific gravity results above 1.010 this can indicate mild dehydration in that person. The higher the number of specific gravity, the more dehydrated a person may be.
A very high specific gravity means very concentrated urine, which may be due to not drinking enough fluid, loss of too much fluid, or substances such as sugar or protein in the urine.
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#SPJ2
two paragraphs
explaining how carbon is
transferred within and
between organisms and the
environment.
Answer:
For example, in the food chain, plants move carbon from the atmosphere into the biosphere through photosynthesis. They use energy from the sun to chemically combine carbon dioxide with hydrogen and oxygen from water to create sugar molecules.
Describe: 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 get rid of carbon dioxide gas through a process called respiration. Carbon dioxide is added to the atmosphere naturally when organisms respire or decompose (decay), carbonate rocks are weathered, forest fires occur, and volcanoes erupt. Carbon dioxide is also added to the atmosphere through human activities, such as the burning of fossil fuels and forests and the production of cement. Organisms play an important role in the carbon cycle in the following ways: Plants absorb carbon from the environment in photosynthesis and return it in respiration. Animals obtain their carbon by eating plants; they release carbon in respiration.
Explanation:
Which makes viral infections difficult to defeat?
• A. Macrophages work slowly.
•
B. The immune system must attack the body's own cells.
•
C. Viruses are attacked by a nonspecific immune response.
D. Viruses live outside of cells.
The statement 'the immune system must attack the body's own cells' makes viral infections difficult to defeat.
What is an infection?Infection is a type of harm that the organism suffers when pathogenic microorganisms and viruses enter the body.
Pathogenic microorganisms include, for example, bacteria, fungi, and virus entities.
These pathogenic microorganisms/entities have specific antigens which can be recognized by the immune system.
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Question 1
Which of these correctly distinguishes mitosis from meiosis?
Question 1 options:
Mitosis occurs in germ cells and meiosis occurs in somatic cells.
Meiosis produces four 2N daughter cells; mitosis produces two 2N daughter cells.
Crossing over takes place in mitosis and not in meiotic cell division.
The number of chromosomes remains the same in mitosis and is reduced by half in meiosis.
Answer:
Crossing over takes place in mitosis and not in meiotic cell division.
Explanation:
Mitosis occurs in somatic cells and meiosis occurs in germ cells. The crossing over event takes place in meiotic cell division and not in mitosis. Meiosis produces four n daughter cells.
HELP ME OUT PLS!!!!!!!!
3) The motion of the Earth is modeled here as it moves on its axis and around the Sun. Which of these statements correctly identifies how the illustration supports the concepts of seasons on Earth? Select ALL that apply
A) The tilt of the Earth is responsible for the seasons.
B) The rotation of the Earth is responsible for the seasons.
C) The proximity of the Earth to the Sun is responsible for the seasons.
D) The revolution of the Earth around the sun is responsible for the seasons.
E) The intensity of the sunlight on Earth is different as the Earth revolves around the sun
Answer:
A -- The tilt of the Earth is responsible for the seasons.
Explanation:
Because Earth's tilted axis causes the seasons.
Hope this helps! Please let me know if you need more help or think my answer is incorrect. Brainliest would be MUCH appreciated. Have a wonderful day!
A red blood cell has a diameter of about 7 micrometer. a microscope of resolving power 240nm ,can it resolve the details of the red blood cell of size 7 micrometer
Yes, it resolve the details of the red blood cell of size 7 micrometer because the microscope has more than 30 times magnification power.
What is magnification?Magnification is the ability of a microscope to produce an image of an object at a scale larger (or even smaller) than its actual size so we can conclude that it resolve the details of the red blood cell of size 7 micrometer because the microscope has more than 30 times magnification power.
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Which region of the nephron is labeled in blue in the image?
Proximal convoluted tubule
Loop of Henley
None of the above
Proximal convoluted tubule is the part labeled from the above diagram of nephron.
What is nephron?The nephron is the small microscopic structural and functional unit of the kidney. It comprises of a renal corpuscle and a renal tubule. The renal corpuscle is composed of a tuft of capillaries which is refer to as the glomerulus and Bowman's capsule. The renal tubule extends from the capsule.
Therefore, The proximal convoluted tubule is a portion of kidney nephron between the loop of Henle and the collecting tubule.
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The author probably wrote this Article in order to
Answer:
c
Explanation:
it's the one that is most likely
This is a multiple choice question )Which of the following is an example of a phenotype?
A. The actual Height of a organism
B. The gene that determines the height of an organism
C. all the heights a organism could possibly be
Answer:
The correct answer should be C
Do hardwork and intelligence can be inherit or not?