Answer:
The arrows could hit animals or people and were feared when walking at night. Comets were conceived as smoking stars and as bad omens, e.g., announcing the death of a ruler. Ancient Chinese records of comet apparitions have been particularly useful to modern astronomers.
Which statement best summarizes agricultural technology over time?
A. Agricultural technology advanced quickly during the Agricultural Revolution and the Green Revolution but hasn't advanced since.
B. Agricultural technology didn't advance before the Agricultural Revolution
C. Agricultural technology didn't advance before the Green Revolution.
D. Agricultural technology has continually advanced over time, with significant leaps forward during the Agricultural Revolution and the Green Revolution.
Answer:
D
Explanation:
Advances in technology affect society, best summarized agricultural technology over time. Advances in technology affect society, best summarized agricultural technology over time
Where in the structure of a DNA molecule are sugar molecules found?
Answer:
deoxyribose (sugar) is located between the phosphate and nitrogenous base
Answer:
A nucleotide consists of a sugar molecule (either ribose in RNA or deoxyribose in DNA) attached to a phosphate group and a nitrogen-containing base
How can you apply the statement "PREVENTION IS BETTER THAN CURE" to the situation where you have mosquitoes in your home?
Answer:
they are multiple ways to apply it like as follows
Explanation:
1. using a mosquitoes net
2. using insecticides
3. keeping your environment clean
Minerals do NOT
A. have unique crystal structures.
B. have definite chemical compositions.
C. form as the result of natural processes.
D. form as the result of compaction and cementation.
Answer:
D. form as the result of compaction and cementation.
Explanation:
A. B. and C. are correct therefore leaving D as your answer.
All minerals are unique, all minerals form naturally, and have chemical compositions.
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In a low pressure system, The air is in the process of
A. Rising and cooling
B. Rising and healing
C. Falling in cooling
D. Falling in heating
Power is the rate at which work is done and it equals the amount of work
done on force
True
False
Answer:
ture
Explanation:
i hope you understand
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Calculate the colony forming units/ml of original sample if you counted 250 colonies on plate with a dilution factor of 10^5. Give your answer in scientific notation.
Answer:
The correct answer is = 2.5× 10^7.
Explanation:
Colony Forming Units/ml (CFU/ml) in the original sample can be calculated by the countable plate is multiplied by 1/FDF.
Given:
colonies counted on the plate = 250
Forming dilution factor = 10^5
solution:
CFU/ml = 250 x 1/1/100000
= 250 CFU x 100000
= 250,00,000 CFU/ml
= 2.5× 10^7
what does the slope of a speed vs.time graph represent
Answer:
It represents an acceleration.
Explanation:
The sloping line shows that the speed of the object is changing. The object is either speeding up or slowing down. If the line slopes upward from left to right, this means the object is speeding up.
QUESTION 10
Because sugar is a major source of dietary cholesterol, consuming too much of it poses a cardiovascular risk. True or False?
Identify whether the given item describes elements of gray or white matter of the spinal cord.
a. Contains myelinated axons
b. Posterior column
c. Located to the periphery of the spinal cord
d. Gracile fasciculus
e. Anterior spinocerebellar tract
f. Medial vestibulospinal tract
g. Marked by low myelination
h. Functions to integrate arriving electrical signals
i. Contains somas, synapses, and dendrites
The grey matter includes neural cells, dendrites, and axon terminals, whilst white count number consists of axons and myelin.
How can you inform the difference between grey and white remember and the brain?The white rely takes place in both the brain and spinal wire. but, gray be counted is a large part of the mind. the main difference among white rely and grey rely is that white count number mainly incorporates myelinated axons and gray matter specifically consists of cells, axon terminals, and dendrites.
What is the grey and white remember of the spine?Gray be counted is a grey area across the critical anxious machine of the CNS. A combination of neuron bodies of interneurons and motor neurons and neuroglia. Synapses from grey matter. White depend does not incorporate the bodies of neuron cells however millions of axons and neuroglia.
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state what will happen to the shadow if the opaque object is moved closer to the screen and away from flash light
Answer:
Objects able to block all the light are called opaque and will form a shadow. ... The closer an object is to the light source, the larger the shadow it casts. This is because an object closer to the source will block a larger area of the light, increasing its shadow size.
Explanation:
Color Blindness is a sex-linked trait. Therefore, it HAS to affect which pair of
chromosomes?
Look at the albino whale people have named Migaloo. The white color is the result of mutations in the genes that code for the proteins responsible for skin color. Is Migaloo’s white color likely to be an advantage in its current environment? Explain your answer.
No, the white color of Migaloo is not most likely an advantage in its current environment. This is because white is the color that is easily perceived by predators.
What is the Mutation?A mutation may be defined as sudden, stable, and inheritable changes in the genetic material of an organism. An organism that undergoes an event of mutation is known as a Mutant. The agents of mutation are known as mutagens.
White color is easily perceived by predators as compared to black, brown, grey, etc. So, it somehow reduces the fitness and survivability of Migaloo. This white color is the result of mutations in the genes that code for the proteins responsible for skin color.
Therefore, the white color of Migaloo is not most likely an advantage in its current environment.
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An epithelial cell with Celia would have them on the ______ surface.
A) lateral
B) basal
C) apical
D) basolateral
Answer: C) Apical
Explanation: An epithelium has a free surface, the apical surface, exposed to the outside, and an attached surface, the basal surface, resting on the underlying connective tissue.
Why we get tired when we wake up from sleep immediately??
Answer:
Sleep inertia, which is a normal part of the waking process. Your brain typically doesn't instantly wake up after sleeping. It transitions gradually to a wakeful state. During this transition period, you may feel groggy or disoriented.
Answer:
is due to sleep inertia... your body may be awake but brain is not active yet
Which reaction creates glucose and which reaction breaks glucose ?
which organelle does the skeletal system connect to and why?
Answer:
Muscles connect to your skeleton and they contract and move the skeleton along. Your skeletal system is made up of cartilage and calcified bone that work together. They help the process of movement happen in a smoother manner. The calcified bones of your skeleton also work with the circulatory system.
Answer:
Organelles of a skeletal muscle cell contain the same organelles as other animal cells, with the addition of myofibrils. Muscle fibers within the skeletal cell are known as myofibers. These organelles allow skeletal muscle cells to contract. Skeletal muscle cells do contain more mitochondria than other cells, because muscle cells require more energy and must convert more glucose. Skeletal muscle cells also differ from other cells because of the myofilaments within the myofibrils. Within these filaments are proteins known as myosin and actin. The special filaments enable the skeletal muscles to contract. The myofibrils within skeletal muscle cells are divided into units known as sarcomeres, which are the units of skeletal muscle cell contraction.
The term dominant generation refers to
Answer:
The dominant generation is haploid, so that the gametophyte comprises what we think of as the main plant. The opposite is true for tracheophytes (vascular plants), in which the diploid generation is dominant and the sporophyte comprises the main plant.
The term dominant generation refers with respect to plant classification and characteristics.
What do you mean by Dominant?Dominant is something that masks the effect of others in the same condition.
In Bryophyta (non-vascular plants), the dominant generation is haploid (n), so the gametophyte consists of the main plant. The opposite is observed for Tracheophyta (vascular plants), in which the diploid (2n) generation is dominant and the sporophyte consists of the main plant.
Therefore, the term dominant generation refers with respect to plant classification and characteristics specifically.
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which number should i put the circle on?
Why do you get hungry?
Feeling hungry is your body's way of
telling you that your cells need
energy. All cells need energy to live,
grow, and reproduce. Plant cells get
their energy from the sun. Many
animal cells get their energy from
food.
Where do humano
Answer:You may feel hungry frequently if your diet lacks protein, fiber, or fat, all of which promote fullness and reduce appetite. Extreme hunger is also a sign of inadequate sleep and chronic stress. Additionally, certain medications and illnesses are known to cause frequent hunger.
Explanation:
"Hunger hormones" (ghrelin) in your blood and an empty stomach signal the brain when you're hungry. Nerves in the stomach send signals to the brain that you're full, but these signals can take up to 20 minutes to communicate -- and by that time, you may have already eaten too much.
Answer:
animals need food
Explanation:
to live
Which of the following is an example of an Atmosphere-Lithosphere interaction in the
Earth system?
A) a thunderstorm returns large amounts of precipitation to the oceans on the earth
B) strong winds knocked down branches of a tree, destroying the nest of a pair of birds
C) ash from a forest fire is carried by the wind to the force where it lands and causes the pH of the soil to increase
D) a divergent boundary in the earths oceans shift, hello emoji flow onto the ocean floor, warm in the water around it
Answer:
C) ash from a forest fire is carried by the wind to the force where it lands and causes the pH of the soil to increase
Explanation:
Examples of an extinct organism??
Answer:
Dodo.
Great Auk. ...
Stellers Sea Cow. ...
Tasmanian Tiger. ...
Passenger Pigeon. ...
Pyrenean Ibex. ...
Baiji White Dolphin
Differences between monocots and dicots
Answer:
monocot- 1 cotyledon, parallel venation, fibrous root, trimerous flower, arrangement of vascular tissue in stem is scattered.
dicot- 2 cotyledon, reticulated venation, tap root, pentamerous flowers, arrangement of vascular tissue in stem is in concentric circles.
Explanation:
0.5
e 3
QUESTION 4
We can accurately determine the age of a rock or fossil by measuring its
a proton concentration
b neutron concentration
mc electron concentration
d isotope concentration
einn concentration
Click Save and submit to save and submit Click Save and Answers to save all answers.
a
Answer:
d isotope concentration
Explanation:
A fossil can be defined as the mineral impression or remains of living organisms such as plants and animals that are prehistoric in nature.
Isotopes can be defined as the atom of an element that has the same number of protons but different number of neutrons. This ultimately implies that, the isotopes of an element have the same atomic number (number of protons) but different atomic.
We can accurately determine the age of a rock or fossil by measuring its isotope concentration. This can be achieved through the use of radiometric dating.
In Science, this process is known as absolute dating and it can be defined as a process used to accurately determine the age of a rock or fossil by measuring the decay of isotopes associated with the rock or within the fossils.
Hence, these informations when properly obtained is used to determine the age of a rock or fossil because the parent material decays into a stable daughter elements at a constant decay rate.
Evaluate the pros and cons of using an NPK fertilizer, a natural compost, and lime on a field with substantial amounts of clay and humus and with a low pH of 3, which is to be planted with a legume crop.
Answer:
Leaching of nutrients occur.
Explanation:
NPK fertilizers are applied to the field all over the world because it has a good effect on the growth and development of plants but it has also some environmental effects such as leaching which pollutes water bodies whereas natural compost is good for the plants as well as for the soil organisms but its breakdown is very slow and it is not readily available to the plants. Lime is also very good for the soil having low pH because lime is basic in nature and it increases the pH of the soil.
The molecular attraction of a substance never changes.
True or False?
Molecular attraction for a substance remains same thus, statement is true.
What is molecule?When one or more atoms are held together to form a group, with help of chemical bonds which are nothing but attractive forces, referred to as molecules.
Molecules as elements of matter and are common. They also make up most of the oceans and atmosphere. Most organic substances are molecules. The substances of life are molecules, e.g. proteins, the amino acids of which they are composed, the nucleic acids (DNA and RNA), carbohydrates, fats, and vitamins. The nutrient minerals are generally ionic compounds, thus they are not molecules.
Different substances have different levels of attraction, but the level of molecular attraction for any one substance is always the same. Therefore, the statement is true.
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Which process releases energy , photosynthesis or cellular respiration ?
Answer:
In photosynthesis, solar energy is harvested as chemical energy in a process that converts water and carbon dioxide to glucose. Oxygen is released as a byproduct. In cellular respiration, oxygen is used to break down glucose, releasing chemical energy and heat in the process.
I am a prokaryote and can be found all around you in places like your desk, shoes, and even your guts.what kingdom am i?
If a female was a carrier for sex-linked color blindness, what percentage of her male children would also be color blind?
Answer:
utterly blind
Explanation:
I am smart, Let me answer questoon.
Answer:
The answer of the question is 50%