Explanation:
the sperm is placed on top of the frog eggs
The sperm come in contact with the frog eggs as they are placed on top of the egg cells. Thus, the correct option is B.
What is fertilization in frogs?During the spring season or rainy season, frogs and toads move to ponds and slow flowing stream regions. When the male (sperm) and female (egg) come together in water medium, the female frog lays hundreds of eggs in the water. Frog’s eggs are not covered by a shell and it is comparatively very delicate in nature. A layer of the jelly holds the eggs together in place and provides protection to the egg cells. As the eggs are laid in the water, the male frog deposits sperms over them. Each sperm swims randomly in the water body with the help of the long tails. The sperms (male gamete) come in contact with the eggs (female gamete). This results in fertilization of the gametes.
The sperm come in contact with the frog eggs as the sperm is placed on top of the eggs.
Therefore, the correct option is B.
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Construct the chemical formulas for the ionic compounds. Consult this periodic table to help answer the question.
Drag the labels to the correct locations on the image. Each label can be used more than once.
Answer:
Al_Br3
Mg_Br2
Na2S
Na3n
Explanation:
I just did it
The chemical formulas are aluminum bromide (AlBr₃), magnesium bromide (MgBr₂), sodium sulfide (Na₂S), and the chemical compound formula of the sodium nitride is Na₃N.
What is the significance of the chemical formulas?Chemical formulas are important to identify the chemical composition of the mixture as they provide important information about the types and numbers of atoms present in a molecule or compound and also predict the properties of a substance, such as its melting point and boiling point. This is useful in industries such as manufacturing, agriculture, etc which has significant importance in the field of medicine, as it helps researchers understand how the human body interacts with the drug.
Hence, the chemical formulas are aluminum bromide (AlBr₃), magnesium bromide (MgBr₂), sodium sulfide (Na₂S), and the chemical compound formula of the sodium nitride is Na₃N.
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please help me with this question!! I really don't know how to do this?
Answer:
I think C
Explanation:
piro magtanung ka sa iba para malaman no yung tamang answer kasi ako para saakin i C
I need this ASAP plzzz help!!
5. How does the inheritance of blood groups in humans demonstrate that Mendelian laws are not
always followed in heredity?
(GIVING BRAINLIEST!!)
Which of the following best describes hail?
A) Small ice pellets that may fall to the ground in a mixture of rain and snow in the form of a solid
B) A form of precipitation that occurs when liquid and frozen precipitation freezes in layers creating chunks
C) Water droplets that collide with others to form large drops as they leave the clouds and fall toward the ground
D) Solid precipitation that is formed in clouds as ice crystals that stick together in groups to form flakes and leave the clouds as flakes
explain why
Answer:
I think its a but dont mark me brailiest unless you get ut right cuz im not sure. done take my word on it
Explanation:
sorry if you get it wrong
Answer:
A) Small ice pellets that may fall to the ground in a mixture of rain and snow in the form of a solid
Organisms of the same species that can reproduce to make more of that species are called
Comminity
Biome
Population
Species/Organism
Answer: Species/Organism
QUICK DISCLAIMER: "I previously said Populations but my answer was reported and removed Imao. Honestly, if someone gives you a wrong answer, don't blame them, blame yourself for not doing it on your own. Keep that in mind."
If a person has two blood type A parents could the child be blood type 0?
A Yes
B.No
why is the sky red sometimes
Answer:
Because you're beautiful
Answer:
It is red when the sun is setting and the blue light is removed leaving red and yellow light
Explanation:
what type of tissues carry messages
Answer: Tissue that carries messages throughout our bodies is called nerves. Nerves conduct electrical impulses between the brain and brain stem to all parts
Define the following words:
Cellular membrane
Passive transport
Osmosis
Simple Broadcast
Dissemination facilitated
Active transport
Endocytosis
Phagocytosis
Pinocitosis
Exocytosis
Answer: cellular membrane: The cell membrane, also called the plasma membrane, is found in all cells and separates the interior of the cell from the outside environment. The cell membrane consists of a lipid bilayer that is semipermeable. The cell membrane regulates the transport of materials entering and exiting the cell.
Explanation:
passive transport Passive transport is a type of membrane transport that does not require energy to move substances across cell membranes. Instead of using cellular energy, like active transport, passive transport relies on the second law of thermodynamics to drive the movement of substances across cell membranes.
Which animal is an inverterbrate?
A.trout
B. cat
C. snake
D. termite
Answer:
Termites
Explanation:
A termite is classified as an insect, and insects are inverterbrate.
I need help :ppppppppp
Answer:
A and B is the answer
Answer:
option A and D are correct
because the organism in animalia kingdom are multicellular and have prokaryotic cells.
A pine tree, an amoeba, a mushroom, and a squirrel are all classified in the same:
kingdom
domain
phylum
species
List the 8 characteristics of life all living organisms have.
Answer:
They need water, they need food, They die at some point of life, They have atleast one cell,
Explanation:
which of the following best describes slab pull
A piece of wood that measures 3cm by 6cm by 4cm has a mass of 80g.
What is the density of the wood?
Answer:
1.1
Explanation:
P=m/v
Volume = 3*6*4= 72
80/72=1.1
How good is a cat's memory span? My lil sister believes that a cat's memory is just like a goldfish's memory span. Is she 100% correct like she believes she is or is she wrong?
Answer:
I'm only answering so you can give the other person brainliest :D
Explanation:
Which of the following astronomical bodies is largest?
A) Jupiter
B) the Sun
C) the Moon
D) the Milky Way
Thank you ..!
Answer:
Explanation:
milky way
WHY SHOULD THE BODY’S INTERNAL BALANCE BE MAINTAINED?
HOMEOSTASIS The cells can survive, if the temperature, pressure and chemical composition of their fluid environment remains constant. The surrounding environment of the body provides oxygen and nutrients required by all cells of the body.anation:
Summarize the four steps to natural selection
Overproduction - An organism gives birth to too many children
Genetic Variation - The offspring each have genetic differences in appearance, behavior, etc
Struggle to Survive - Offspring must fight in order to gain essential resources (food, water, mates, etc)
Successful Reproduction - Organism produces offspring with beneficial adaptations that aid in survival
How could a rise of l m in the sea level directly affect humans?
A. Communities that depend on glacial run-off would face severe water shortages.
B. Residents of low-lying Islands in the Indian Ocean would be forced to abandon their homes.
C. Expansion of fertile floodplains along the Nile would make more land suitable for agriculture.
D. Residents along the U.S. east coast would become less vulnerable to storm surges and flooding.
What structures are responsible for the movement of chromosomes to the center of the cell in metaphase and their separation in anaphase?
Scientists use a technique called ________ to make multiple copies of DNA sequences. Scientists can also make _______ by combining DNA from two different sources. One of the sources may be bacteria, which have circular DNA molecules called _________ When bacteria undergo transformation, they can be identified by _______.
1. gel electrophoresis
DNA ligation
recombinant DNA
the polymerase chain reaction (PCR)
2. plasmids
polyploidy
messenger RNA
recombinant DNA
3. polyploidy
recombinant DNA
plasmids
telomeres
4. nucleotides
genetic markers
telomeres
polyploidy
Answer:
the polymerase chain reaction (PCR)
recombinant DNA
plasmids
genetic markers
Explanation:
The answer is "the polymerase chain reaction (PCR), recombinant DNA, plasmids, and genetic markers".
Fill in the blank:To generate multiple copies of DNA sequences, researchers employ a technique known as polymerase chain reaction (PCR). Recombination of the DNA can also be created by combining DNA from two sources. Bacteria with circular DNA molecules known as plasmids could be one of the origins. Generic markers could be used to identify microorganisms that have undergone a transformation.Find out more about the DNA cloning here:
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Drag each label to the correct location on the image.
Identify these elements of photosynthesis.
Answer:
Light energy is near the sunrays.carbon dioxide is given by the plant respiration that is leaf.Glucose is stored inside the tissues or the body of the plant.Explanation:
The plant performs a chemical activity of photosynthesis under the light during the daytime. During this process, the visible part of the spectrum reflects back the other spectrum of light. The plants produce oxygen and take in carbon at the same time they also provide carbon dioxide. Glucose is a type of energy available in starch is stored in plant leaf carbon dioxide is used to convert into sugar to form glucose.Answer:
left - carbon dioxide
right - glucose
top - light energy
I hope this helps
Which type of population pyramid occurs in locations where fertility rates are high, death rates fall, and more people
are middle aged with a longer life expectancy?
A) expansive population pyramid
B) constructive population pyramid
C) stabilizing population pyramid
D) directional population pyramid
E) stationary population pyramid
Answer:
constructive population pyramid (B)
Answer:
C) Stabilizing Population Pyramid
the population is stabilizing
Because the death rates are falling and life expectancy is longer, the population is stabilizing.
How does the type of rock in Earth's crust affect the distribution of groundwater
Answer:
Obviously, such rocks transmit only small quantities of water and are poor aquifers. By comparison, rocks such as fractured sandstones and cavernous limestone have large connected openings that permit water to move more freely; such rocks transmit larger quantities of water and are good aquifers.
Explanation:
Answer:
Rocks transmit small quantities of water and are poor aquifers. Comparison, rocks such as fractured sandstones and cavernous limestone have large connected openings that permit water to move more freely.
A population of deer mice lives in a neighborhood. Which of these changes to
the neighborhood could increase the carrying capacity of this population?
Which of the following is not a component of a virus
I need to know how to do this, please help !!1
Answer:
freckles, no freckles
cheek dimples, no cheek dimples
right-handed, right-handed
DNA is directly involved in the process of transcription?
Answer:
yes
Explanation:
the answer is yes. if the question is yes or no...
What is the function of the central vacuole in plants? (a) Stores water and dissolved nutrients (b) Carries out photosynthesis (c) Releases energy from stored nutrients (d) Protects the genetic material of the cell
Answer:
The correct answer is - option A. stores water and dissolved nutrients.
Explanation:
The central vacuole is a large vacuole in the plant cell that is made up of small vacuoles after combining together. The central vacuole plays many roles in the plant cell such as support the cell with the help of turgor pressure.
t stores water inside with dissolving other substances and nutrients such as salts, minerals, proteins and help in the growth of the plants. This structure store the nutrients and substances temporarily.
Thus, the correct answer is - option A.