Which RNA base pairs with the adenine in DNA?
Thymine
guanine
cytosine
uracil
Answer:
uracil
Explain: it pairs up with the dna
When deciding on new environmental policies
and laws, which term is used to describe the
comparison between benefits and costs of
human activities?
Answer:trade-off
Explanation:trust me bro i just got it right
Sickle cell anaemia is an inherited autosomal recessive
condition caused by a mutation in the haemoglobin
subunit beta (HBB) gene. A male and female who are
phenotypically normal, discover through genetic testing
that they are both carriers of a HBB mutant allele. What is
the probability that their first child will be biologically
female and phenotypically normal?
Answer:
1/8 (12.5%)
Explanation:
An autosomal recessive disease is an inherited disease in which an individual need to receive both defective alleles at the same gene locus to be expressed in the phenotype. In this case, both parents are carriers of the recessive mutant allele associated with the sickle cell anaemia trait, thereby both parents are heterozygous, ie., each parent has one copy of the normal allele 'H' and one copy of the defective mutant allele 'h' associated with this condition. In consequence, their first child has a 1/4 (25%) chance of having sickle-cell anaemia. Moreover, the chance of having a girl is 1/2 and the chance of having a boy is 1/2, thereby the final chance of having a girl sickle cell anaemia individual is 1/4 x 1/2 = 1/8 (12.5%).
- Parental cross for sickle cell anaemia trait = Hh x Hh >>
- F1 = 1/4 HH (normal); 1/2 Hh (normal); 1/4 hh (sickle cell anaemia) >>
- Sex proportion of sickle cell anaemia individuals = 1/8 female sickle cell anaemia individuals + 1/8 male sickle cell anaemia individuals (1/8 + 1/8 = 1/4)
Which event triggers the start of black hole formation?
Answer:
A stellar-mass black hole forms when a star with more than 20 solar masses exhausts the nuclear fuel in its core and collapses under its own weight. The collapse triggers a supernova explosion that blows off the star's outer layers.
Explanation:
Answer:
1. The universe's galaxies have evolved since what point in time?
2. Which proportion of the universe's galaxies can be seen from Earth?
3. Which was used to create the first image of a black hole?
4. Which of these describes a nebula?
5. Why are most stars not destroyed in a galaxy collision?
6. What do supernova remnant and planetary nebulae have in common? Select the three correct answers.
7. Which of the following is an accurate description of cosmic microwave background (CMB) radiation? Select the two correct answers.
8. Select the correct answers from the list.
The model of galaxy formation in which sections of gas clouds collapse into small pieces which repeatedly combine into larger pieces under the influence of gravity is called the ____ model or the ____ model.
9. Drag and drop the words into the correct locations. Answers may be used once, more than once, or not at all.
Galaxies can be grouped by the age of the stars they tend to contain, with ____ galaxies having the youngest stars and ____ galaxies having the oldest stars.
10. Which event triggers the start of black hole formation?
Explanation:
1. 13.8 billion years ago, right after the universe first formed
2. far less than 1 percent
3. radio waves from matter at the edge of the black hole
4. cloud of gas and dust
5. Galaxies are mostly empty space.
6. They emit non-visible radiation.
They are composed of matter from dying stars.
They contribute matter to interstellar space.
7. CMB is uniformly distributed and of a uniform temperature across the universe.
CMB is remnant radiation from the Big Bang.
8. inside-out / bottom-up
9. irregular / elliptical
10. A massive star depletes its stores of hydrogen and helium
What is one advantage of having many small cells instead of one large cell?
A. Small cells do not have cell membranes.
B. With many small cells, you have more surface area.
C. With many small cells, you produce less protein.
O D. Small cells do not require a stable internal environment.
having one large cell simply means that you can't move your limbs, so I say D
One of the 7th graders in our school believes that absolute zero is possible on very cold days when it is snowing outside. Is he correct?
Answer: It depends on where u live it can go to the negatives and could be at 0 at some point
Explanation:
sal'jdhkblajshdbjkadsbjadsds
Answer:
Huh?? what did you say?
Explanation:
Nuclear power plants produce large amounts of
Answer:
Nuclear reactors are, fundamentally, large kettles, which are used to heat water to produce enormous amounts of low-carbon electricity. They come in different sizes and shapes, and can be powered by a variety of different fuels.
Explanation:
Hope this helps!! :))
An organism is born with a genetic variation not present in any of its ancestors. This variation is most likely the result of
A.circulation of blood
B.competition among individuals
C.respiration
D.a mutation in its DNA
Answer:
D
Explanation:
This is because circulation is blood,respiration and competition have no relation to changing the DNA of an organism
Which is a reason why wetlands are important?
O They move water to higher ground during flooding.
O They filter pollutants out of water.
O They are estuaries.
O They provide minerals.
Answer:
They are estuaries
Explanation:
what is the meaning of localisation ?
The meaning of localisation is the process of making something local in character or restricting it to a particular place.
Localization is the adaptation of a particular product or service to one of those markets.
... XxMissFlirtyxX...During a storm, heavy rain ___________ a large rock into smaller pieces and then those pieces are __________ downstream from one place to another. *
erodes / weather
deposits / eroded
weathered / eroded
discharges / deposits
Answer:
1) erodes
2)deposits
Explanation:
Shondra takes notes in class.
Three entries in Shondra's notes are not in the right
place. What can Shondra do to correct her notes?
1. Energy
A Definition - the energy of moving objects
B. Main categories of energy
1. Kinetic - the ability to do work
2 Potential - the energy stored in objects
3. Chemical -- the energy in chemical bonds
C. Forms of energy
1. Gravitational - the energy of a rock on a hill
2 Elastic - the energy in a spring
3. Nuclear - the energy in the nuclei of atoms
4. Electromagnetic wave - the energy from the Sun
5. Electrical - the energy of flowing electrical charges
O Switch "the energy of moving objects" and "the
ability to do work" and place chemical energy under
"Forms of energy."
O Switch "the energy of flowing electrical charges" and
"the energy in a spring" and place kinetic energy
under "Forms of energy."
O Switch "the energy in the nuclei of atoms" and "the
energy stored in objects" and place nuclear energy
under "Main categories of energy."
O Switch "the energy from the Sun" and "the energy of
a rock on a hill" and place electrical energy under
"Main categories of energy."
Mark this and return
Save and Exit
Next
Submit
Answer:
I beileve its A because energy is what gives the ability to do work
Explanation:
Answer:
A
Explanation:
please have a great day.
Select the correct answer. Oll-rich countries in the Middle East cover about 4% of Earth's total land area but possess about 48% of the world's known oil reserves. What is the main reason for the high concentration of reserves in this part of the world?
Answer: The main reason for the high concentration of reserves in this part of the world which is the middle east that covers bout 4% of earth's total land area but possess about 48% of the world's known oil reserves is due to GEOLOGICAL PROCESSES. Hope this answer helps.
Snake venom contains a mixture of enzymes, which include phospholipase that break down cell membranes, proteinases that destroy proteins, as well as amino acid oxidases and nucleotidases that break down the monomers for protein and DNA synthesis, which is why they can be so deadly. If you were bitten by a venomous snake you may be treated with an antivenom. In addition to antibodies that help your immune system recognize and fight the foreign molecules, what else does the antivenom most likely contain
Answer:
The correct answer is - Venom enzyme inhibitors.
Explanation:
The snake venoms are the complex mixtures of phospholipase A2s, disintegrins, serine proteases, C-lectins, and metalloproteases, and others. The snake venom phospholipase A2s (svPLA2s) enzymes found in most of the families of venomous snakes that cause anticoagulant effects, cardiotoxicity, neurotoxicity, and cytotoxicity, and other effects.
In antivenom, there are Venom enzyme inhibitors other than antibodies that help in neutralizing these enzymes by weakening or inhibiting these toxic actions.
The oxidation of a chemical occurs when
It loses electrons
It gains electrons
It shares electrons
All the above
Answer:
Oxidation occurs when an atom, molecule, or ion loses one or more electrons in a chemical reaction. When oxidation occurs, the oxidation state of the chemical species increases.
Explanation:
oxidation is loss of electrons
here a trick to remember this
oil rig -> oxidation is loss. reduction is gain
How did the mass extinction that killed the dinosaurs affect the evolution of mammals?
Answer:
With dinosaurs no longer eating them, mammals made quick evolutionary strides, assuming new forms and lifestyles and taking over ecological niches vacated by extinct competitors. ... Sixteen mammal species were discovered, with skulls and other bones fossilized after being buried in rivers and floodplains.
Explanation:
Plants and animals are multicellular organisms made of organ systems that work together to maintain homeostasis. Body systems
are made of organs and organs are composed of tissue. Tissues are groups of cells that work together to perform functions.
Examine each of the examples below. Which of these are organs found in plants or animals? Select ALL that apply.
A
A
)
epithelial
B)
eye
leaf
D)
stem
vascular
The organs found in plants or animals is stem vascular. Therefore, option (D) is correct.
What are the features of the stem vascular?A stem is one of two main structural axes of a vascular plant, the other being the root. It supports leaves, flowers and fruits, transports water and dissolved substances between the roots and the shoots in the xylem and phloem, stores nutrients.
The vascular system of plants, complete with xylem and phloem, fills both purposes. Stems, along with roots, also store food for the plant. Pith, a tissue that lies in the center of the stem.
A vascular bundle is a part of the transport system in vascular plants. The transport itself happens in the stem, which exists in two forms: xylem and phloem.
Learn more about stem vascular:
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Groundwater _____. forms when precipitation seeps into the soil exists above the earth's surface is impossible to pollute is not a usable water source for humans
Answer:forms when precipitation seeps into the soil
Explanation:
Answer:
It's B
Explanation:
I got it correct when I did it on my quiz on oddseyware.
A 10 N force and a 15 N force are acting on a box in opposite directions what edition force must be added to produce equilibrium
Answer:
5N of force acting the same way as the 10N of force to make it 15N of force
Explanation:
_____releases carbon dioxide as a waste product. *
Chloroplast
O Cytoplasm
Ribosomes
O Mitochondria
Answer:
Mitochondria
HOPE THIS HELPS YOU...
Pls mark as brainliest
Which term best describes the plasma membrane?
Which term best describes the plasma membrane?
Static
Dynamic
Impermeable
Rigid
Answer:
The plasma membrane, also called the cell membrane, is the membrane found in all cells that separates the interior of the cell from the outside environment. ... The plasma membrane consists of a lipid bilayer that is semipermeable. The plasma membrane regulates the transport of materials entering and exiting the cell.
Dynamic term describes the plasma membrane. So, the correct option is (B).
What is Plasma membrane?Plasma membrane also known as cell membrane is a membrane found in all cells that separates the interior of the cell from the external environment. The plasma membrane consists of a lipid bilayer that is semi-permeable that regulates the transport of materials entering and exiting the cell.
This membrane is called a selectively permeable membrane because it controls the movement of substances in and out of the cell, which means that the plasma membrane allows certain materials to pass through it, while at the same time it prevents other materials from entering through it. Plasma membrane is dynamic in nature.
Thus, Dynamic term describes the plasma membrane. So, the correct option is (B).
Learn more about Plasma membrane, here:
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State your claim. Make sure your claim fully explains how infrared photography can be used to visualize temperature differences
Answer:
Infrared thermography using an infrared camera is the most popular technique for detecting surface temperature without contact. ... Passive thermography measures relevant temperature differences of the surface by heating it with lamps (heat sources).
NEEDED NOW ASAP HURRY PLEASE
Answer:
D
Explanation:
because the populations have become different, they can no longer breed making it harder from them to grow.
provide one term:when businesses produce goods and services that consumers do not want
Answer:
Their will be low demand for the goods
Explanation:
Because goods like cigarettes are not much consumed by people
what is the role of the shrimp with respect to phytoplankton in this food chain
Explanation:
The answer is B. that is "Prey"...
The correct answer is option (b) Prey.
What is shrimp?
A small free-swimming crustacean with an elongated body, typically marine and frequently harvested for food.What is phytoplankton?
Plankton consisting of microscopic plants is called phytoplankton.Why other options are incorrect?
Option (a), (c), (d) is incorrect because, prey means the phytoplankton is the food of shrimp.
learn more about food chain below,
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The purpose of using the binomial scientific names is to
Give each organism a unique name
Give each species a unique name
Study how the environment affects different organisms
Study the evolution of life
Protect endangered species
Answer:
study the evolution of life
Glycolysis takes place in _________________.
The cytoplasm
The mitochondrial intermembrane space
The mitochondrial matrix
The endoplasmic reticulum
Answer:
It occurs in the cytoplasm. Glycolysis also involves two stages which break up glucose. In the 1st stage, Glucose is broken into two phosphorylated 3-carbon compounds through a series of reactions.
What things do plants use to get food matter?
HELP ASAP
Answer:
water and sunlight (for sure)
Answer:
Plants are called producers because they make their own food
Explanation:
Plants use minerals and water from the ground and their leaves absorb Carbon Dioxide (CO2) from the air.They convert these into food by using sunlight
Hope this Helped :)
Neuvon Time to Recieve
Hand free phone
making a call tim (27 min)
Answer:
Okay... Ig
Explanation:
