Answer:
B. Sperm released by one sponge swim to other sponges
(Fertilization is the term used to state when a male gametes fuses with a female gamete)
1.Compare and contrast a cold and warm front.
2. Along which type of front is the weather the calmest? Justify your answer.
Answer:
A cold weather front is defined as the changeover region where a cold air mass is replacing a warmer air mass. Cold weather fronts usually move from northwest to southeast. ... Warm fronts usually move from southwest to northeast and the air behind a warm front is warmer and moister than the air ahead of it.
ExplanationThere are four different types of weather fronts: cold fronts, warm fronts, stationary fronts, and occluded fronts. the direction of flow of the air mass and its characteristics. so based on what we know i would say that warm fronts are calmest
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Answer:
There is a relationship between latitude and temperature around the world, as temperatures are typically warmer approaching the Equator and cooler approaching the Poles.
Explanation:
Latitude and longitude make up the grid system that helps humans identify absolute, or exact, locations on the Earth's surface.
help ....................
Helicobacter pylori, the bacterium responsible for gastric ulcers, can survive in the stomach (where the pH is as low as 1.5) in part because it synthesizes large amounts of the enzyme urease. (a) Write the reaction for urea hydrolysis by urease. (b) Explain why this reaction could help establish a more hospitable environment for H. pylori, which tolerates acid but prefers to grow at near-neutral pH.
Answer:
a) (NH₂)₂CO + H₂O ---> CO₂ + 2NH₃
b) The hydrolysis of urea by the urease enzyme generates ammonia which is a weak base. The ammonia thus produced, acts as a base by accepting the hydrogen ions present in the acidic environment of the stomach. This reactions serves to neutralize stomach acid in order to create a suitable pH environment that the bacterium requires to survive and colonize.
Explanation:
a) Urease catalyzes the hydrolysis of urea into carbon dioxide and ammonia. The equation of the reaction is shown below:
(NH₂)₂CO + H₂O ---> CO₂ + 2NH₃
b) The hydrolysis of urea by the urease enzyme generates ammonia which is a weak base. The ammonia thus produced, acts as a base by accepting the hydrogen ions present in the acidic environment of the stomach. This reactions serves to neutralize stomach acid in order to create a suitable pH environment that the bacterium requires to survive and colonize.
The reaction of ammonia with hygrogen ions from HCl is shown below:
NH₃⁺ + H⁺ ----> NH₄⁺
Therefore, the continuous activity of the enzyme urease, helps to establish a more hospitable environment for Helicobacter pylori
What are the two main sources of energy that power the Earth system?
A. the sun and Earth's interior
B. radioactive decay and volcanic eruptions
C. the sun and the motion of Earth through space
D. the sun and human activities, such as burning fossil fuels
Answer:
The answer is A, the sun and the Earth's interior.
Answer:
A.the sun and Earth interior
3. What is the difference between cotyledons in dicot seeds and the endosperm in monocot seeds?
Explanation:
Monocots contain a single cotyledon in their seed and dicots contain two cotyledons. The nutrients in the endosperm of dicots is absorbed by the two cotyledons. Therefore, a tiny endosperm is found inside the dicot seed. However, the main difference between cotyledon and endosperm is in their function during seedling.
Look at the H-R Diagram. Which star is sort of cooll, dim (not too much light) and red?
Betelguse
Procyon B
Sirius B
Barndard's star
Answer:
i think its procyonB . but I'm not sure.
Answer: procyon b
Explanation:
Which term is used to describe an inherited trait that gives an organism and advantage in its particular environment?
A. Speciation
B. Unicellular organism
C. Adaptation
D.vestigial organ
Answer:
C. Adaptation...........
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Which of these is an example of a population in a desert ecosystem?
A. a saguaro cactus
B. the amount of rainfall
C. a fennec fox and it's young
D. hawks and the lizards they feed on
Answer:
A
Explanation:
because cactus are in the desert
Which organisms do you think might be more closely related to each other: a dog and a turtle or a dog and a silkworm
Answer:
Most likely a dog and a turtle.
Explanation:
A Dog and a Turtle organisms do you think might be more closely related to each other, So, the correct option is A.
What is an organism?An organism is defined as any living system which functions as an individual unit where all living things are made up of cells. The concept of organism is based on the concept of the minimum functional unit of life.
Biological organisms are defined as living things capable of responding to stimuli, reproduction, development and homeostasis which are classified by taxonomy into specified groups such as multicellular animals, plants and fungi; or unicellular microorganisms such as protists, bacteria and archaea.
A Dog and a Turtle organisms do you think might be more closely related to each other as both have four legs and belongs to Phylum Chordata.
So, the correct option is A.
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Calculate the number of International Flights
Answer:
Hey mate....
Explanation:
This is ur answer....
The number of flights performed globally by the airline industry increased steadily since the early 2000s and reached 38.9 million in 2019. However, due to the coronavirus pandemic, the number of flights dropped to 16.4 million in 2020.
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how are two identical DNA molecules formed
Answer:
Explanation:
DNA is a double stranded molecule. When DNA is copied the two strand of DNA (old strands) separate and new nucleotides match up with the two separated strands. This process creates two identical double stranded DNA molecules are formed. Each DNA molecule contains one strand of the original DNA molecule and one newly synthesized (made) strand.
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Margo is designing an experiment to investigate the rock cycle. She has written the following steps.
Step 1: Gather shavings from different colors of crayons.
Step 2: Place a small pile of shavings between sheets of waxed paper and press down on them lightly.
Step 3: Place a small pile of shavings between sheets of waxed paper and press down on them with great force.
Step 4: Compare the results produced in Steps 2 and 3.
Which question might Margo be investigating?
Margo is investigating about :
How does the pressure involved affect the formation of sedimentary rock?
What is sedimentary rock ?
Sedimentary rocks are formed from deposits of pre-existing rocks or pieces of once-living organism that accumulate on the Earth's surface.
How are sedimentary rock formed ?
Sedimentary rocks are formed from deposits of pre-existing rocks or pieces of once-living organism that accumulate on the Earth's surface. If sediment is buried deeply, it becomes compacted and cemented, forming sedimentary rock.
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What happens during the process of translation?
Image result for world
a
copies of DNA molecules are made
b
the cell uses information from messenger RNA to produce proteins
c
mRNA is made from DNA
d
transfer RNA is made from mRNA
Answer:
c..... mRNA is made from DNA
Why do people make this to the seashore?
Answer:
Hey mate.....
Explanation:
This is ur answer....
REASONS :-
Soothing salt water. The minerals and salt in the ocean water soothe aching joints.
Exfoliate with sand. Sand acts as a natural exfoliator.
Workout in the waves.
Vital vitamin D.
Clear the mental clutter.
Technology detox.
Enjoying company.
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What is the types of diseases affecting bone
Answer:
Examples of metabolic bone diseases include osteoporosis, rickets, osteomalacia, osteogenesis imperfecta, marble bone disease (osteopetrosis), Paget disease of bone, and fibrous dysplasia.
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5. What type of mutation has occurred in the strands provided. *
Original strand: ATGCATGGAC
Mutated strand: ATGGAIGGA C
Insertion
Substitution
Deletion
Framshift
Answer:
It is a substitution of a cytosine with a guanine
Place the following categories from broadest to most specific
Kingdom, Order, Genus, Domain, Species, Class, Family, Phylum
Mutation is a natural process that changes a DNA sequence. Most DNA changes Faul in a large areas of the genome that sits between genes, and usually they have no effect. When variation occur within jeans, there is more often a consequence, but even then mutations only really cause death or disease. Mutations also generates new variations that can give an individual A survival advantage.
Answer:
The correct answer is -
1) point mutation
2) deletion
3) inversion
4) frameshift mutation.
Explanation:
Point mutation or substitution mutation is a genetic mutation that takes place when there is a change in a single base nucleotide, it can be replaced with other nucleotides from a DNA or RNA sequence of an organism's genome.
Deletion is a genetic mutation that occurs when there is a loss of a segment of a chromosome. If the particular segment is responsible for an important protein or gene the offspring have to be with one copy only therefore, it is considered a bad mutation.
When there is a reversal of the segment of a chromosome occurs a change takes place in genetic material which is known as the inversion type of genetic mutation.
If any of the above mutations take place including deletion, inversion, replacement or insertion in one or more nucleotides to make a change in the amino acid sequence from the site of mutation forward is frameshift mutation.
WHY does SUCCESSION OCCUR?
Answer:
Why does ecological succession occur? Every species has a set of environmental conditions under which it will grow and reproduce most optimally. Ecological succession may also occur when the conditions of an environment suddenly and drastically change.
Consider two genes that are independent, the A gene and the B gene. Each gene has two alleles (A gene: A1 and A2, B gene: B1 and B2). The frequency of A1 allele at the A gene is 0.85 and the frequency of the B2 allele at the B gene is 0.24. What is the probability of an individual in a randomly mating population of having A1B2|A2B1 as their genotype
Answer:
The probability of an individual in a randomly mating population of having the genotype A1B2|A2B1 = 0.658 = 65.8% ≅ 66%
Explanation:
Due to technical problems, you will find the complete explanation in the attached file
Where is ATP produced?
. What cellular structure or characteristic seems to be generally true of organism that use photosynthesis?
Answer:
Photosynthesis in plants occurs in specialized organelles called chloroplasts.chloroplast are found in plant leaves and contains the pigment chlorophyll. the green pigment absorbs light energy needed for photosynthesis to occur.
Explanation:
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Geotropism is a response to
Explanation:
Gravitropism (also known as geotropism) is a coordinated process of differential growth by a plant in response to gravity pulling on it. It also occurs in fungi. Gravity can be either "artificial gravity" or natural gravity. It is a general feature of all higher and many lower plants as well as other organisms.
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Which of these would be a model of diffusion?
A. a student passes through a revolving door
B. two students pass by each other in a hallway
C. two students bump into each other in a crowded subway car
D. many students pass from a crowded room into an empty hallway
Diffusion can be described as the movement of molecules from a region of higher concentration to a region of lower concentration.
A model of diffusion could be many students pass from a crowded room into an empty hallway (option D).
A model is used to describe/illustrate a particular event or situation. In this case, the crowded room is the region of higher concentration. And the empty hallway is the region of lower concentration. The molecules refer to the students. And their movement from the crowded room to the empty hallway refers to diffusion.Learn more about diffusion: https://brainly.com/question/2135861
If you have type A blood, what are your possible genotypes? ……………………………….
If you have type B blood, what could your genotypes be? ……………………………….
If you have type AB blood, what must your genotype be? ……………………………….
If you have type O blood, what must your genotype be? ………………………………
Pattern of inheritance ………………………………
Answer:
Explanation:
1.Their genotype is either AA or AO
2.blood type B could have a genotype of either BB or BO
type AB or type O is more informative.
3. Someone with blood type AB must have both the A and B alleles. The genotype must be AB.
4.Someone with blood type O has neither the A nor the B allele. The genotype must be OO.
Pattern of inheritance;
There are five basic modes of inheritance for single-gene diseases: autosomal dominant, autosomal recessive, X-linked dominant, X-linked recessive, and mitochondrial.
Why are maritime air masses more often associated with weather disturbances?
associated with unstable air and stronger weather disturbance, there is more moisture in the air of a maritime air mass, increasing the possibility of rain, snow, and storms. forms over Canada, move down from North Pole, bring bitterly cold and dry air to the northern United States during the winter:
What two glands are involved in regulating sugar levels in the bloodstream?
A. Thyroid and testes
B. Pituitary and Thymus
C. Ovaries and Hypothalamus
D. Adrenal Pancreas
Answer:
Adrenal and pancreas
Explanation:
they both are responsible for regulating sugar levels in the bloodstream
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what is occurring during the mitosis phase
Answer:
During mitosis, a eukaryotic cell undergoes a carefully coordinated nuclear division that results in the formation of two genetically identical daughter cells. ... Then, at a critical point during interphase (called the S phase), the cell duplicates its chromosomes and ensures its systems are ready for cell division.
Explanation: