Explanation:
Increasing genetic variation and the environmental effects on that variation form the basis for natural selection. A species with a great deal of genetic variability is more likely to survive as a species in a changing environment than a species with limited variability.
Where is the sugar-phosphate backbone located in the DNA double helix?
Answer:
If you look at a DNA double helix, it resembles a twisted ladder. The “sides” of the ladder (or strands of DNA) are known as the sugar-phosphate backbone.
Answer:
thats a good qustion
Explanation:
How is the age of the earth used as evidence of evolution?
Answer:
Explanation:
All radiometric evidence points to the age of the Earth as about 4.54 billion years old. The old age of the Earth is evidence for evolution, a change in the genetic makeup of a population over time.
Answer:
The age of the earth can be used as evidence of evolution because it withholds the past that we are capable of uncovering bit by bit. We excavate fossils buried in the ground which we use accordingly. The fossil record reveals that the deeper you go, the farther back in history you unearth. This is known as the Law of Superposition. With these fossils, we can compare and contrast the anatomy of closely related organisms and possibly uncover vestigial structures. All of which is evidence that evolution has taken place.
Question 24 of 35
Which two statements describe the Mesozoic era?
A. Most of Earth's history took place within this time.
B. Plants began to colonize land during this era.
C. It is also known as the Age of Reptiles.
D. It lasted from about 250 million years ago to 70 million years ago.
Answer:
A
Explanation:
A because a meteor hit when the dinos were alive
What stage of photosynthesis uses
carbon dioxide to make glucose?
A. Light reactions
B. Calvin Cycle
C. ATP synthesis
D. Cellular respiration
Answer:
Calvin Cycle
Explanation:
The Calvin cycle takes over where the light reactions end. It uses chemical energy stored in ATP and NADPH (from the light reactions) and carbon dioxide from the air to produce glucose, the molecule that virtually all organisms use for food.
Name of the disease
How is it acquired/mode of transmission/cause(s) of the disease?
Who does it affect? Elderly, the young?
How is it diagnosed?
Is there treatment for it? If yes, please give details as to what treatment is recommended and for how long? Be specific, are there medication or dietary changes involved?
How long is the treatment for?
Is any surgery involve? If so, what kind?
What is the typical outcome of the treatment?
Can the disease be preventable?
What can be expected long term from the disease?
Help
Answer:
6520999090009899999999
Describe the northern and southern hemisphere in terms of the distribution of the cryosphere
Answer:
The cryosphere is the portion of the Earth's surface where water is in solid form. It thus includes sea ice, lake ice and river-ice, snow cover, glaciers, ice caps and ice sheets, and frozen ground. The snow cover has the largest extent, with a maximum area of more than 45 106 km2 (Table 1.1). Because of the present distribution of continents, land surfaces at high latitudes are much larger in the Northern Hemisphere than in the Southern Hemisphere. As a consequence, the large majority of the snow cover is located in the Northern Hemisphere (Figs. 1.15 and 1.16). The same is true for the freshwater ice that forms on rivers and lakes in winter. Both the snow cover and freshwater ice have a very strong seasonal cycle, as they nearly disappear in summer in both hemispheres (Table 1.1).
Explanation:
The cryosphere is the portion of the Earth's surface where water is in solid form. ... Because of the present distribution of continents, land surfaces at high latitudes are much larger in the Northern Hemisphere than in the Southern Hemisphere.
When we talk about soil depletion, which soil horizon is affected?
Answer:
surface horizon (A)
Explanation:
Whoever answers I will mark brainlest
Answer:
Anaphase and Prophase
Explanation:
Which of these best describes the smooth muscle?
a. muscles that control movements inside your body
b. muscles that provide force to move your bones
c. Tissue in the heart
d. Strong connective tissue that attaches muscle to bone
e. muscles that you cannot control
f. muscles that appear banded
g. muscles under your conscious control
Answer:
Options A , C , E
Hope it helps!!
Smooth muscle is one of the three types of muscles involved in controlling the movements inside your body organs and is involuntary. Thus, options a and e are correct.
What are smooth muscles?Smooth muscles are the non-striated muscle that lacks sarcomeres and striations and thus lacks bands. They are found through the internal body structures and have a variety of functions.
The smooth muscles can be found in the walls of the liver, intestines, pancreas, urinary tract, uterus, etc. but not in the heart. They also have a spindle shape that contains only one nucleus in it.
They are not under the control of the organisms and rather are controlled by the nervous system, skeletal system, chemicals, and hormones.
Therefore, the smooth muscles are involuntary muscles that control the internal structure. Options a and e are correct.
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Help me please it’s biology
Answer:
the last one
Explanation:
Answer:
I'm pretty sure it's a virus
Explanation:
Viruses are non-living, therefore they are abiotic
Why are some genes expressed (turned on) and some genes not expressed (turned off) in a cell?
Answer:
some genes can funtion on their own
Explanation:
Where does the energy for a wave come from? A: the potential energy of height
B:the kinetic energy of a push
C:the kinetic energy of a pull
D:the static energy not the molecules hitting
Answer:
the potential energy of height
Wave able to travel through only through solids, moves in a side to side or
up down motion, slow
P-wave
Q -wave
R-wave
S-wave
Answer:
S-Wave
Explanation:
S-Waves are only able to travel through solids, and are known for moving in a side to side or up and down.
Let me know if this helps!
1. Which of the following is not a natural occurring event of carbon dioxide being added to the environment?
animal respiration
deforestation
volcano eruption
Answer:
animal respiration is what I guess it is.
Answer:
Deforestation
Explanation:
I had it on a quiz earlier today
when do you think friction can be helpful ? try to think of a situation friction is necessary
Answer:
friction stops tyres skidding in the road and prevents shoes slipping on the pavement .it grips the ground a prevent sliding
A food web is made of
O A. mostly plants.
B. mostly consumers.
O C. mostly animals.
O D. connected food chains.
O E. connected producers.
Answer:
D. connected food chains
Explanation:
Which atom is involved in giving your heart energy to beat?
carbon
O gold
o oxygen
Tron
Answer:
hello
Explanation:
your answer of this question is oxygen
Answer:
OXYGEN!!
Explanation:
Oxygen is involved in giving your heart energy to beat.
Which represents solar energy?
Answer:
A I guess... :D
The ice cubes represents the solar energy.
What is Solar energy?
Solar energy is the radiant heat and light from the Sun that is captured by a variety of technologies, including solar architecture, solar thermal energy (including solar water heating), and solar power to produce electricity.
It is a crucial source of renewable energy, and depending on how solar energy is captured, distributed, or transformed into solar power, its technologies are often classified as passive solar or active solar. Utilizing photovoltaic systems, concentrated solar electricity.
A building's orientation toward the Sun, the use of materials with favorable thermal mass or light-dispersing qualities, and the creation of naturally ventilated rooms are all examples of passive solar approaches.
Therefore, The ice cubes represents the solar energy.
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What happens to water when light is absorbed?
A. it bonds with carbon dioxide and forms carbonic acid
B. it bonds with oxygen and form H2O2
C. it splits and oxygen is given off, while H+ builds up in the thylakoid space
D. it heats up and therefore provides the activation energy needed to start photosynthesis
PLEASE DO NOT COPY OFF ANY WEBSITES ANSWER IN YOUR OWN WORDS
Why have organisms evolved to have vestigial body parts?
Answer:
Structures that have lost their use through evolution are called vestigial structures. They provide evidence for evolution because they suggest that an organism changed from using the structure to not using the structure, or using it for a different purpose..
Hope it will help :)
Explanation:
What type of rock is formed when hot lava is cool and hardened
Answer:
A. Igneous
Explanation:
What effect does a higher percentage of the compact bone portion have a upon the weight of the bone?
Answer:
The bone weights more as the bone's thickness is wider for a compacter bone.
Explanation:
Compact, sometimes called cortical bone, thick bone with firm organic soil and inorganic salt in the ossic matrix leaving only narrow gaps in which the osteocytes or bone cells are present. The bone is sometimes called the cortical bone.
Answer:
The bone weighs more as its thickness grows wider, causing a more compact bone.
Explanation:
If you are doing ap ex I suggest reading the introduction of the lab and procedure carefully, it helps. :)
A farmer grows several crops on a farm that has mostly shallow, sandy soil, meaning they have
a low water storage capacity and a high infiltration rate. Which of the following irrigation
methods would be the best suited for this farm?
Select one:
O a. Drip irrigation
O b. Surface irrigation
O c. Flood irrigation
O d. Furrow irrigation
For a sandy soil farmer should use drip irrigation method over surface irrigation.
Sandy soils have a low water storage capacity and a high infiltration rate. Therefore they need frequent but small irrigation methods, drip irrigation is most suitable method than surface irrigation.
In other irrigation methods such as Surface irrigation, Flood irrigation, Furrow irrigation water is discharged in quite large amounts but the soil lost it due to the high infiltration rate.
Therefore, for a sandy soil farmer should use drip irrigation method over surface irrigation.
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The following are considered organelles except for the -
A. chloroplast
B. cytoplasm
C. mitochondria
D. vacuole
Correct answer get's brainliest please help :(
Answer:
cytoplasm
Explanation:
I think the answer is cytoplasm cause it is the room of the cell
Negative feedback:If oxygen levels are low,then respiration should
A. Increase
B. Decrease
Answer:
increase..................
Nitrogen bases pair with bases that are...
available
complementary
complementary and identical
identical
Nitrogenous bases basically pairs with bases that are complementary. The correct option is B.
What are nitrogenous bases?Nucleobases, also referred to as nitrogenous bases or purely bases, are nitrogen-containing biological molecules that form nucleosides, which are then constituents of nucleotides, all of which are the basic building boxes of nucleic acids.
A set of 5 nitrogenous bases is used to build nucleotides, which then in results nucleic acids such as DNA and RNA.
These bases are critical because their sequencing in DNA and RNA is how information is stored.
A base pair in DNA are complementary to each other. Under normal conditions, the nitrogen-containing bases adenine (A) and thymine (T) pair, whilst also cytosine (C) and guanine (G) pair.
The structure of DNA is formed by the binding of these base pairs.
Thus, the correct option is B.
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Which element of an original work can be changed in an adaptation? Theme. Story. Setting. Main idea.
Answer: setting
Explanation:
HELP ME PLSS and thank you!!
Answer:
either a or d but not to sure
Explanation:
What are some Characteristics of a ladybug before metamorphosis
Answer:
.
Explanation:
Ladybug larvae look somewhat like tiny alligators, they have elongated bodies and bumpy exoskeletons. Though in many species, the ladybug larvae are black with brightly colored spots or bands.
*
what’s a small cellular structure with a specific function
Answer:
tissues
Explanation:
organised to perform one or more specific function
