Answer:
chlorine, iodineExplanation:
halogens are those belonging to 17th group in a modern periodic table....
Most enzymes are proteins. Many cells make and use an enzyme called catalase to facilitate the decomposition of hydrogen peroxide (H2O2). The products of the decomposition are hydrogen (H2) and oxygen (O2). Stephanie is investigating the structure and function of catalase, and she is comparing catalase to other proteins. What can Stephanie predict will distinguish the structure of catalase from the structures of the other proteins she is studying? A. many regions made entirely of hydrogen and oxygen B. the chemical properties of the peptide bonds C. the types of amino acids it contains D. the sequence of amino acids it contains
Answer:
The correct answer is - B. the chemical properties of the peptide bonds.
Explanation:
The difference between the structures of catalase from other proteins depends on the chemical properties of the peptide bonds present in between the amino acids which decide the pH and temperature by their disruption. These bonds present between two alpha-amino acids when carboxyl of one amino acid interacts with the amino group of the other to form an amide-type covalent bond.
2/3 divided by 1/6
Answer:
4
Explanation:
What is the correct order of a food chain containing the following organisms: quail (bird), desert shrub, coyote, snake?
Answer:
desert shrub - quail - snake - coyote
Explanation:
the quail bird eats the desert shrub, the snake eats the quail, the coyote (a-pex predator in this chain) eats the snake.
how do the weight of objects on earth compare the weight of the objects on the moon why do you think this is
Answer:
Being that the moon has a gravitational force of 1.622m/s 2, we multiply the object's mass by this quantity to calculate an object's weight on the moon. So an object or person on the moon would weigh 16.5% its weight on earth. Therefore, a person would be much lighter on the moon. Conversely, a person is 83.5% heavier on earth than on the moon.
Explanation:
hope this helps you out love!! <3
Answer:
weight of objects on EARTH> weight of objects on MOON
Explanation:
weight= mass * gravity
assuming both objects have the same mass, the environment with greater gravity will result in a greater weight
gravity of earth > gravity on the moon
so
weight of objects on EARTH> weight of objects on MOON
How do Hadley cells affect savannas climate
A red blood cell would burst if placed in a(n) ___ solution with no cell wall.
A. Isotonic
B. Hypertonic
C. Hypotonic
Please help! 10 points
Answer:B
Explanation:
If a father has type A blood and the mother has Type AB blood, they would NOT have a child with which of the following blood types?
AB
A
B
O
Answer:
If a father has type A blood and the mother has type AB blood, they cannot have a child with blood type O, although depending on the father's genotype, they may not have children with a B blood type either.
Explanation:
Blood type is determined by the presence or absence of surface antigens A and B, which is genetically determined and establishes the pattern of inheritance.
Alleles that define the presence of antigens A and B are co-dominant, while the absence of antigens - as in blood type O - is a recessive trait.
Type A contains antigen A and its genotype can be A|A or A|O. Type B contains the B antigen, whose genotype can be B|B or B|O. Blood type AB contains both antigens and a single genotypic expression A|B Type O blood lacks surface antigens, with genotype O|O.The father with blood type A can have two genotypes, A|A or A|O, which raises 2 possible scenarios:
1. Father A|O with mother A|B
Alleles A O
A A|A A|O
B A|B B|O
In this case there is no chance of having a child with blood type O, 50% chance of having children with blood type A, 25% B and 25% AB.
2. Father A|A with mother A|B
Alleles A A
A A|A A|A
B A|B A|B
50% chance of having a child with blood type A and 50% with blood type AB. In this case there is no chance of having children with blood type O or B.
Which of these is a characteristic of sexual reproduction?A)It takes place in all cells of the body.B)It forms exact copies of the parent cell.C)It results in offspring with genetic variation.D)It requires only one parent to form a daughter cell.
Answer/Explanation:
It results in offspring with genetic variation. 2 different mates must be used in sexual reproduction. This is because each person is different since cells are produced and combined differently in the original offsprings. If the two adults were exactly the same, the offspring would have the exact same cell traits. Likewise will be done for the offspring of the two adults. The genes may be similiar to the ones of the adults, but since combined it will not be an exact replica. In the long run sexual reproduction will result in an offspring with slightly different traits or genetic variation.
Why does calcium concentration matter to a cell?
Answer:
HOPE IT MAY HELP YOU
Explanation:
Calcium-based signaling is used in many cellular and neuronal processes to initiate rapid responses to extracellular signals. Cells therefore maintain tight control over intracellular Ca2+ levels, using a variety of channels and pumps.
Answer:
to answer your question it is
Explanation:
Calcium-based signaling is used in many cellular and neuronal processes to initiate rapid responses to extracellular signals. Cells therefore maintain tight control over intracellular Ca2+ levels, using a variety of channels and pumps. ... neuron
Alexis is using models of the cell membrane to compare the types of cellular transport. One
model shows a molecule entering through a protein pump. Which ope of cell transport is
being modeled?
A
diffusion because protein pumps are needed to move substances from a higher
concentration to a lower concentration
8
endocytosis, because protein pumps transport substances that are too large to
pass through the cell membrane
active transport, because protein pumps are needed to move substances against a
concentration difference
D
osmosis, because protein pumps allow water to cross the cell membrane
Answer:
C. active transport, because protein pumps are needed to move substances against a concentration difference
Explanation:
There are two major types of transport in living cells namely: passive transport and active transport. The passive transport moves molecules down a concentration gradient and hence, do not need energy (ATP) to occur. However, on the other hand, ACTIVE TRANSPORT moves substances against their concentration gradient, thus, require energy input.
Active transport makes use of PROTEIN PUMPS to achieve this process. Hence, in this case where Alexis is using models of the cell membrane to compare the types of cellular transport. The model that shows a molecule entering through a protein pump is modelling ACTIVE TRANSPORT.
Need help ASAP
The Crust of the earth is mostly made of.......
a.Fe and Ni
b. Silica
c. Magnesium
d. Aluminum
Answer:
b. silica
Explanation:
!!
Explanation:
A crust is the outermost layer of a planet. The crust of the Earth is composed of a great variety of igneous, metamorphic, and sedimentary rocks. The crust is underlain by the mantle. The upper part of the mantle is composed mostly of peridotite, a rock denser than rocks common in the overlying crust.
EASY 10 POINTS
Why do plant cells need chloroplasts?
Answer:
Chloroplasts are organelles found in plant cells and eukaryotic algae that conduct photosynthesis. Chloroplasts absorb sunlight and use it in conjunction with water and carbon dioxide gas to produce food for the plant. In this respect they are similar to mitochondria, but are found only in plants and protista.
Explanation:
mark BRAINLIST!
thx
A marathon runner completed a race of 26.2 miles in 3 hours and 15 minutes. What was his average speed throughout the race?
a) 7.5
b) 8.1
c) 8.7
d) 10
Answer:
b
Explanation:
The average speed of an object is the sum of the distance traveled by the object relative to the total time taken to cover the distance. In other words,
Average speed = total distance traveled/total time taken
In this case, the total distance traveled by the runner = 26.2 miles while the total time taken = 3 hours and 15 minutes
60 minutes = 1 hour
15 minutes = 0.25 hours, hence
3 hours 15 minutes = 3.25 hours
Average speed = 26.2/3.25
= 8.0615 miles/hour
= 8.1 miles/hour
The correct option is b.
what position will kamala harris hold on sunday 20,2021
Answer:
Vice President?
Explanation:
Answer:
vice president she the first black woman,indian and woman to be vice president her innaguration was yesterday
Explanation:
PLEASE ANSWER THIS QUICK QUESTION!!! ASAP! WORTH A LOT OF POINTS
What do all tide pool creatures have in common?
Or: What are the main features that all tide pool creatures have in common?
Explanation:
While these small basins at the ocean's edge typically range from mere inches to a few feet deep and a few feet across, they are packed with sturdy sea life such as snails, barnacles, mussels, anemones, urchins, sea stars, crustaceans, seaweed, and small fish.
please help, anything will do! thank you! I have provided eveyrhtign and did the lab (procedures).
What is a component of amino acid not contained in starch
A. Amino acids contain hydrogen.
B. Amino acids contain oxygen.
C. Amino acids contain carbon.
D. Amino acids contain nitrogen.
Answer:
D. Amino acids contain nitrogen
Explanation:
...
I NEED THE ANSWER ASAP
which particles do plants absorb to obtain energy?  a. photons  b. electrons  c. atoms  d. molecules
Answ
i think its a
Explanation:
Answer:
It's a. photons(light energy)
PLSS HELP!!
1. cellular respiration produces
A. cellulose
B. oxygen
C. ATP
D. glucose
2. to produce starch, glucose molecules bond together through
A. photosynthesis
B. cellular respiration
C. dehydration synthesis
D. nucleotides
3. by which process does yeast produce the carbon dioxide responsible for bread rising?
A. photosynthesis
B. glycolysis
C. cellular respiration
D. dehydration synthesis
4. what is a component of amino acid not contained in starch?
A. amino acids contain carbon
B. amino acids contain oxygen
C. amino acids contains hydrogen
D. amino acids contain nitrogen
5. which two processes provide the glucose and nitrogen used to form amino acids in plants?
A. photosynthesis and nitrate absorption
B. cellular respiration and the citric acid cycle
C. photosynthesis and dehydration synthesis
D. glycolysis and nitrate absorption
Answer:
1. ATP
Explanation:
Cellular respiration may be defined as the chemical process of breakdown of food in the cell with the liberation of energy in the form of ATP.
Photosynthesis is a chemical process through which green plants most photosynthetic algae synthesize their own food in the form of glucose. While nitrate absorption is the process through which nitrogen in the soil is significantly absorbed by the root of plants in form of nitrates.
Fermentation is initiated with the process of glycolysis, but it does not involve the upcoming two stages of aerobic cellular respiration such as the Krebs cycle and oxidative phosphorylation.
Therefore, each of the above questions is well described above.
To learn more about Cellular respiration, refer to the link:
https://brainly.com/question/2809259
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During a murder investigation, the medical examiner tests the contents of the
victim's stomach to try to identify their last meal and establish a connection to a
suspect. The contents tested using Lugol's iodine turned a dark purple color
which indicates the presence of starch. This test indicates which of these
macromolecules was present in the victim's last meal? *
A. Proteins
B. Carbohydrates
C. Lipids
D. Nucleic Acid
how the sun is involved with the formation of other forms of energy on Earth.
A fungus cell is a prokaryotic cell. True or false?
List three ways in which a sperm cell differs from other cells in the
human body
4
If Jennifer wanted to grow her hair out without fear of it breaking or becoming damaged, what macromolecules should she increase in her daily diet
Answer:
I'm guessing proteins because hair is made out of keratin and keratin is a protein.
Explanation:
Please help me need this before 8:00am
The questuon is in the picture
Answer:
I think the answer is D.
Explanation:
I think this because I just did the Periodic Table in school, also they are group by the same color by physical and chemical properties.
Which career combines DNA technology and forensics? pharmaceuticals paternity testing environmental studies genetics
Answer:
B. Paternity
Explanation:
Edge 2020
The career that combines DNA technology and forensics is paternity testing. The correct option is B.
What is paternity testing?DNA testing examines an individual's DNA banding patterns to determine the identity or mutations of a specific gene.
Paternity testing is a type of DNA testing that is used to determine paternity and the true nature of a relationship.
The lab compares tissue samples from the mother, the child, and the man to determine what unique characteristics known as genetic markers the child shares with the mother and the man who may be the father.
The chromosomes that determine the gender of the baby (X and Y chromosomes). The mother's egg typically contributes an X chromosome, while the father's sperm contributes either an X or a Y chromosome.
These tests are extremely accurate in determining whether a man is the biological father of a child.
Thus, the correct option is B.
For more details regarding DNA technology, visit:
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Which environmental policy must consider the expensive startup costs associated with building machines that harvest energy from clean sources? reducing air pollution regulating deforestation introducing new farming methods protecting ocean reefs
Answer:
i think its A
Explanation:
Answer:
A. reducing air pollution
Explanation:
edge 2022
brainllst
Read the excerpt from "Bone Detective," by Lorraine Jean Hopping. While the dentist worked on the tiger’s teeth, Diane made an alginate impression of one of its huge paws. Then, the dentist used two cupped hands to pull the tongue out of the big cat’s mouth. The heavily muscled organ was almost as long as her foot. With the dentist still holding the tiger tongue in both hands, Diane quickly went to work. The pink surface was rough, like sandpaper, but floppy and wet. She coated the top with alginate and waited for it to set. Her 15 minutes were almost up. The tiger, so calm and soft, would soon wake up and be dangerous again. Slowly and carefully, Diane peeled off the soft impression to avoid tearing it. Based on this excerpt, what is the author’s attitude toward Diane France? The author feels Diane is rough and impatient in her work with the tiger. The author feels Diane is skillful and careful in her work with the tiger. The author feels Diane is anxious and distracted in her work with the tiger. The author feels Diane is light-hearted and humorous in her work with the tiger.
Answer:
2nd oneㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤ
it says carefully she helps the tigerㅤㅤㅤ
Answer:
The answer is B. The author feels Diane is skillful and careful in her work with the tiger.
Explanation:
took the test on edge
Can someone help me with this question pls (8th grade science)
Answer:
C
Explanation:
The exerpt states that movements in the Earth's crust (unbalance) causes Earthquakes. When it's balanced, there is no plate movement.
Answer: c
Explanation: if there is no plate movement that means that there is a balanced force there is nothing that is disrupting it. but if there's an earthquake in that means that there are unbalanced forces in that they cause an earthquake. a force is balanced if the two individual forces are of equal magnitude and of the opposite direction. And an object is said to be acted upon by an unbalanced force when there is an individual force that is not being balanced by a force of equal magnitude and in the opposite direction.
Which of the following statements is true regarding electromagnetism?
All wires are electromagnetic.
Only wires carrying current are electromagnetic.
Only iron wires are electromagnetic.
Only copper wires are electromagnetic.
Answer:
Only iron wires are electromagnetic.