Answer:
RNA contains Uracil
Explanation:
DNA's four bases are: Adenine, Thymine, Cytosine, and Guanine.
RNA replaces the Thymine with Uracil, making it the correct choice.
If I helped, a brainliest answer would be greatly appreciated!
10 POINTS (and no its not 5 and I gave 10 its 10 and I gave 20)
In the Northern Hemisphere, winds associated with a high-pressure system blow
clockwise toward the center
clockwise outward from the center
counterclockwise outward from the center
counterclockwise toward the center
Answer:
Low pressure is called a cyclone and has anticlockwise winds blowing around it. High pressure is called an anticyclone and has clockwise winds blowing around it. I mean the second one.
Answer:
a. clockwise toward the center
Explanation:
Because the winds differ on every side of earth.
4. What role do carrier proteins play in facilitated
diffusion?
Answer:
Carrier proteins can change their shape to move a target molecule from one side of the membrane to the other. ... The carrier proteins involved in facilitated diffusion simply provide hydrophilic molecules with a way to move down an existing concentration gradient (rather than acting as pumps).
help 100 points please
Answer:
your answer would be B. the vascular tissue
Explanation:
There are two principal tissue types that make up the veins of plants: The xylem moves water and minerals. This flows from the plant’s roots upwards. The phloem moves food energy around the plant. This flows in whichever direction the plant needs it to flow. These two tissue types make up the vascular bundle of the plant.
hope you have a nice day
-kay :)
Identify which type of natural selection is described in each case below.
Results in the evolution of the species:
Results in new species:
Favors traits at the two extremes:
No increase in diversity:
One extreme trait is favored:
Diversity decreases:
Diversity increases:
Answer:
Results in the evolution of the species: Directional selection
Results in new species: Disruptive selection
Favors traits at the two extremes: Disruptive selection
No increase in diversity: Directional selection
One extreme trait is favored: Directional selection
Diversity decreases: Stabilizing selection
Diversity increases: Disruptive selection
Explanation:
Directional selection which is also known as positive selection is known to be a mode of natural selection. In this type of selection, an extreme phenotype is favored over other phenotypes. This makes the allele frequency to move in the direction of that phenotype and this takes place over time.
Disruptive selection (known to be diversifying selection) talks about the certain changes in the population genetics whereby extreme values of a particular trait are favored over intermediate values. This results in new species.
While Stabilizing selection is a natural selection whereby there is a stabilization of the population mean on the particular value of a non-extreme trait. Here the diversity is decreases.
Answer: A) directional selection
B) disruptive selection
B) disruptive selection
A) directional selection
A) directional selection
C) stabilizing selection
B) disruptive selection
Explanation: :)
HELP PLEASEEE ASAP————————
Answer:
U already marked the correct option.
What are biomolecules and why they important
When an object does not move it is because there are unbalanced forces acting on it. please help!
A. True
B. False
Answer:
I think that the answer is False.
Explanation:
I need help with this
Answer:
Condensation
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The formation of male and female sex cells is known as
A)
gametogenesis
B)
budding
C)
sporulation
D)
regeneration
Answer:
it should be C
Explanation:
I hope this helps. Let me know if I am wrong
How do the profile plot amplitudes of all three muscle types (skeletal, cardiac and smooth muscle) compare?
what does a boy do when they like u?
they act like they have the right to treat you like dodo but if he is nice he will be prob either shy or hide his feelings.
The millions of tiny air sacs in the lungs are called
Answer:
Alveoli
Explanation:
Answer:
AlveoliExplanation:
Alveoli are tiny air sacs in your lungs that take up the oxygen you breathe in, and keep your body going.
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GL :)
compare and contrast animal cells, plants cells and prokaryotic cells
Describe and compare the types of scales used by scientists to measure and describe earthquakes.
Please help
Answer:
There are two primary scales used to measure earthquakes: the Richter scale and the Mercalli scale. The Richter scale is most common in the United States, while worldwide, scientists rely on the Mercalli scale. The moment magnitude scale is another earthquake measurement scale used by some seismologists.
Do plants and animals both use cellular respiration? Explain.
Answer:
yea
Explanation:
just took a test today
Answer: yes
Explanation: Plant cells respire the same way animal cells do, but respiration is only one part of the process. To survive, plants also need another chemical reaction called photosynthesis. While both plants and animals carry out cellular respiration, only plants conduct photosynthesis to make their own food.
(_______) stars, however, will last for several billion years, because
they burn their fuel much more slowly. *
Answer:
Smaller
Explanation:
Life Cycle of a Star
Stars are formed in clouds of gas and dust, known as nebulae. Nuclear reactions at the centre (or core) of stars provides enough energy to make them shine brightly for many years. The exact lifetime of a star depends very much on its size. Very large, massive stars burn their fuel much faster than smaller stars and may only last a few hundred thousand years. Smaller stars, however, will last for several billion years, because they burn their fuel much more slowly.
What is one job of RNA?
carrying genetic information
manufacturing nucleotides
giving shape to chromosomes
unraveling DNA
Answer:
carring genetic information
Explanation:
Gametes in humans are
a. Sperm cells
b. Egg cells
c. Sperm or egg cells
d. X or Y chromosomes
Answer:
c
Explanation:
they are also known as sex cells
Answer:
Sex Cells (Sperm & Egg Cells)
PLEASE HELP NEED ANSWER AS SOON AS POSSIBLE
Match the terms related to enzyme actions with their descriptions.
substrate
active site
product
catalyst
the initial substance in a chemical
reaction that is changed
the substance that speeds up or helps
chemical reactions to occur
the location on an enzyme where
the initial substance reacts
the end substance that results from
a chemical reaction
Answer:1:reactants
2:catalyst
3:active site
4:product
Explanation: U answer my question plz
phloem contains specialized cells that move sugars and other nutrients both up and down in plants. Which object is the best model of one of these cells
Answer: B- Drinking Straw
Explanation:
What is the relationship between Rate of Enzyme Reaction and temperature?
Like most chemical reactions, the rate of an enzyme-catalyzed reaction increases as the temperature is raised. A ten degree Centigrade rise in temperature will increase the activity of most enzymes by 50 to 100%.
What’s the different properties of hbA and HbS
Answer:
The isoelectric point of normal HbA is 6.9 [91], but HbS has two fewer negative charges per hemoglobin molecule than HbA because glutamic acid residues in the β-chains of HbS were substituted by the valine residues [5], [6]. It shows that HbS has more hydrophobicity than HbA in this condition [10]
What is this organelle
Biology questions
if you only know the answer to one that's ok I just need some help
1. Which digestive enzyme is made in the Mouth? How does it help digestion?
2. What digestive enzyme is made in the Stomach? How does it help digestion?
3. What other chemical is made in the Stomach? How does this help digestion?
4. What does the Pancreas make that helps to neutralize the acid from the stomach as it goes into the small intestine?
5. What enzymes make up Pancreatic Juice? What does each enzyme do to help digestion?
6. What chemical does the liver make? What does it do?
7. What does the gall bladder store?
Answer:
1. Salivary amylase is the primary digestive enzyme in the mouth. I helps to break down carbohydrates.
2. Pepsin is produced in the stomach and breaks down proteins.
3. Protease is also found in the stomach. It breaks down proteins and peptides.
4. Bicarbonate is a basic substance made by the pancreas and helps to neutralize stomach acid.
5. Bicarbonate ions to neutralize the hydrochloric acid of chyme.
6. The liver secretes bile, a digestive fluid; metabolizes proteins, carbohydrates, and fats; stores glycogen, vitamins, and other substances; synthesizes blood-clotting factors; removes wastes and toxic matter from the blood; regulates blood volume; and destroys old red blood cells.
7. Bile
Explanation:
Large deposits of bones
physical records
both Bible and physical records
Bible account
HELP DUE IN 10 MINS!
In leaves of a plant, Solar Energy is first used to make??
A. Proteins
B. Carbohydrates
C. Lipids
D. Water
Answer:B is the right answer I am sure.
Explanation:
Answer:
B. Carbohydrates
Explanation:
I have already done this unit
Caterpillars have hair-like bristles on the back side of their bodies. the bristles can be long or short. caterpillars with short bristles have two recessive alleles (ss) for the trait. a Caterpillar that is heterozygous for the bristle trait is crossed with a Caterpillar that has short bristles. the cross produces 220 offspring. how many of the offspring are expected to have short bristles?
Answer:110
Explanation: 220 x .5
Please help me with this
answer
Q1
A: molars
B: pre-molars
C: canines
Q2.
1) angoara goat
2)Cashmere goat
3)golden fibre
hope my ans helps
pls give brainlist to me
love you
have a good day
This is a map of a _ landform because ?
ASAP
Answer:
This is a map of a Mountain landform because the rings get smaller until the top of the mountain. Also the altitude goes up until it reaches the top.
Explanation:
For each genotype below indicate whether it is het3rozygous or hom0zygous.
Answer: Het3rozygous genotypes are the ones with a capital letter and a lowercase letter; Hom0zygous genotypes are the ones with either two capitals or two lowercase letters
Explanation: