Which of the following is a necessary step in the process of speciation?
The large cloud of material that surrounds a comet ends up doing what for the Comet?
Which of the following phrases best describes cancer
Answer:C uncontrolled cell growth caused by mutations in genes that control the cell cycle
Explanation:
Cancer is mutated cell that grew uncontrollably
The phrase that best describes cancer is uncontrolled cell growth caused by mutations in genes that control the cell cycle, hence option C is correct.
Cancer is a broad collection of illnesses that can begin in practically any organ or tissue of the body.
These illnesses are brought on when abnormal cells grow out of control, cross their normal boundaries to infect nearby body parts and/or spread to other organs.
Mutations in the genes that regulate the cell cycle result in uncontrolled cell growth. Cancer cells are unable to recognize or regulate cell division and proliferation. They continue to reproduce as a result.
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The given question is incomplete, so the most probable complete question is,
Which of the following phrases best describes cancer?
A. absence of cyclins in the DNA
B. Multiple gene mutations on a chromosome of DNA
C. uncontrolled cell growth caused by mutations in genes that control the cell cycle
D. presence of genetic defects caused by hereditary disorders
define what is voluntary
Answer:
done, given, or acting of one's own free will
Explanation:
i searched it up
Explanation:
voluntary implies freedom and spontaneity of choice or action without external compulsion.
In rabbits, black fur is dominant to white fur. A pet owner wants to breed two rabbits. One rabbit has two dominant alleles for fur color, and one rabbit has one dominant allele and one recessive allele for fur color.
Which of these best predicts the offspring?
All of the offspring will have two dominant alleles.
All of the offspring will have two recessive alleles.
All of the offspring will have black fur.
All of the offspring will have white fur.
Answer:50%
Explanation:
Answer:
Explanation:
theres no answer
The student then discovers another type of organism in the sample. This organism also has a
nucleus, but does not have chloroplasts. What can she conclude about this organism?
What are some UNUSUAL physical characteristics about the Tundra Biome?
Also what are some other names for the Tundra?
Thank you!
LIFE SCIENCE
Answer:
Some characteristics would be Low biotic diversity, Simple vegetation structure, Energy and nutrients in the form of dead organic material, and Limitation of drainage.
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Describe two factors that affect the size of surface waves
Answer:
wave height
Explanation:
Wave height is affected by wind speed, wind duration (or how long the wind blows), and fetch, which is the distance over water that the wind blows in a single direction. If wind speed is slow, only small waves result, regardless of wind duration or fetch.
Answer:
what he said
Explanation:
What are the risks, benefits and uses of cloning?
which of the following is not a reactant of photosynthesis?
A) solar energy
B) water
C) oxygen
D) carbon dioxide
ASAP
Answer:
it needs carbon dioxide and water to make oxygen and glucose
Explanation:
Answer:
oxygen
Explanation:
oxygen is the product, not the rectant. by the way, listen to my new song Deirious, by Renaudst. me.
The use of non-local resources is associated with certain economic and environmental consequences.
True or false
Plz help with prompt 1, the letter T and A are in bold font. I keep thinking but i just can’t. I’ll give brainliest and a thank you!
Answer:
I think they involve swapping of one nucleotide for another during DNA repliction.For example during repliction,a thymine nucleotide might be inserted in place of guanine nucleotide
Physical limits on the flow of ______________into and _________of the cell prevent most cells from being too large.
Answer:
materials/out
Explanation:
Physical limits on the flow of materials into and out of the cell prevent most cells from being too large.
The limitation of the kind and amount of materials that flow into and out of the cell prevents the cell from being too large. The function of selectively allowing materials to enter and leave the cell is carried out by the cell membrane. While being permissible to some materials, it shuts some materials off and, thus, the size of the cell is maintained.
in the diagram above the substance labeled x is most likey
Answer:
ATP
Explanation:
In the given diagram, the substance labeled X is most likely an enzyme.Therefore, the correct option is 2.
What are enzymes?The biological polymers that catalyze biochemical processes can be referred to as enzymes.Most enzymes are proteins having catalytic properties that are essential to carry out various operations.
One may compare the essential function of a single substrate enzyme to a lock and key.The substrate is the key in this scenario, while the enzyme is the lock. The enzymes here breaks the dipeptides resulting into the formation of mono-peptides. They are very specific and can only alter specific reactions by reacting to the substrates.Therefore, the correct option is 2.
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How do humans change the balance of the ecosystem
Answer:
Humans may destroy natural landscapes as they mine resources and urbanize areas. This is detrimental, as it displaces residing species, reducing available habitats and food sources. This can negatively effect an ecosystem because the introduced species may outcompete native organisms and displace them
Explanation:
Answer:
Humans impact on the natural environment has reached unprecedented levels. Humans are present on all continents: almost allecosystems have been modified by human activities through habitat loss and fragmentation, overpolitation, and invasive species
Explanation:
please help asap in 15 mintues !!!!
Answer:
D i think
Explanation:
PLEASE HELP ILL GIVE BRANLEST AND 15 POINTS PLEASE SOMEONE
Answer:
1. Air warms, becomes less dense, it rises
2. Air cools down, increases density (becomes denser), it sinks
Maple sap boils at 104°C. At what Fahrenheit temperature does the sap boil? Make sure you show all your work, including formula and unit.
Answer:
Explanation:
(104°C × 9/5) + 32 = 219.2°F
can someone help me please
Answer:
Identify which plant species you have the most of (big bluestem). Say that this is much higher than all the other species, as most only have a few individuals. You can say that there is 6 times as much big bluestem as there is mountain mint (which is the second most common species).
You have to remember that this only shows the species present in a small area of the prairie, so if you repeated this is another area you could have only 1 big bluestem and 100 mountain mint instead.
Just say what you notice, you don't need to be able to explain why this is the case. :)
Explanation:
what is the common name for the boston fern
Answer:
Nephrolepis exaltata
Explanation:
Answer:
Nephrolepis Exaltata
Explanation:
Nephrolepis exaltata, known as the sword fern or Boston fern, is a species of fern in the family Lomariopsidaceae native to tropical regions throughout the world. An evergreen perennial herbaceous plant, it can reach as high as 40–90 centimetres, and in extreme cases up to 1.5 metres. It is also known as the Boston swordfern, wild Boston fern, Boston Blue Bell Fern, tuber ladder fern, or fishbone fern.
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I'm not the best at science so if u are HELP
Answer:
C
Explanation:
because meiosis increases the genetic variability by crossing over the chromosomes (DNA)
How long does a mayfly live as an adult? *
Answer:
Adults will live only a day or so, but the aquatic larvae lives for about a year
Explanation:
Answer:
~ 1 day but larvae can live longer
Explanation:
Which of the following are ways that scientists find differences between organisms?
A Evolution and natural selection.
B Naming and classification.
C Genetic analysis and observing characteristics.
D Artificial selection and kingdom classification.
Answer:
Genetic analysis and observing characteristics
Often, characteristics are determined by several ________ ________ that interact with each other. *
Answer:
genes
Explanation:
Several characteristics (phenotypes) are controlled by more than one gene of the same characteristics or of different characteristics. These genes interact in several ways with each other.
For instance -
A flower of the same plant can be of three different colors
RR - Red
rr - White
Rr - Pink
HOW DO THE CARBON DIOXIDE OXYGEN MOLECULES ENTER EXIT A PLANT?
I WILL GIVE YOU BRAINLYEST!!
Answer:
Carbon dioxide and oxygen can't pass through the cuticle, but move in and out of leaves through openings called stomata
Explanation:
Answer:
Their Leaves
Explanation: Plants get the carbon dioxide they need from the air through their leaves. It moves by diffusion through small holes in the underside of the leaf called stomata.
In which organelle is DNA found in a eukaryotic cell?
Answer:
nucleus
also mitochondria has it's own DNA as do plastids (if they are present)
Explanation:
Students were given a sample of an unknown element to examine and Investigate. They made a list of the element's observable properties as shown
below:
Solid at room temperature
Shiny
Malleable
Good conductor of heat
Based on the properties in the list, which element were the students most likely observing?
A. Sulfur (5)
B. Tin (Sn)
C. Silicon (SI)
D. Carbon (C)
Answer:
B
Explanation:
Question 1
Why does the inner core of Earth remain solid even though it is very hot?
A
The Coriolis effect creates a centralized gravitational spin at Earth's core.
00
The pressure is so great at the inner core that it causes atoms to push together.
С
The inner core is not as hot as the outer core.
D
The inner core is made of the same material as the mantle.
Answer:
The pressure is so great at the inner core that it causes atoms to push together.
Explanation:
The inner core of Earth remains solid even though it is very hot because the pressure is so great at the inner core that it causes atoms to push together. This is present in the second option.
What are the different layers of the earth?The earth has three layers, such as the inner hot core, the mantle, and the last outer crust, and the temperature of each layer is varied and made up of different compositions. The outer crust has different minerals as the mountains, plants, and animals present there, while the molecules are not present under the high pressure here. The middle layer, known as the mantle, is composed of iron and other elements, whereas the inner core is hot and solid due to high pressure.
Hence, the inner core of Earth remains solid even though it is very hot because the pressure is so great at the inner core that it causes atoms to push together, so the second option is the correct answer.
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what are the two kinds of traits and how are they different from each other?
Answer:A trait is a characteristic pattern of behavior or conscious motive which can be self‐assessed or assessed by peers. The term type is used to identify a certain collection of traits that make up a broad, general personality classification.
Explanation: