In certain organisms, like humans, there are two morphologically distinct types of gametes: (1) the male gamete (i.e. sperm cell) and (2) the female gamete (i.e. ovum). The male gamete is smaller in size and motile whereas the female gamete is several times bigger and non-motile. The haploid condition of the two gametes is essential so that at fertilization during sexual reproduction the integrity of the chromosomal number is maintained throughout generations.
Hope this helps.
Answer:
Examples of Gametes. The two most common gametes are sperm and ova. These two haploid cells can undergo internal or external fertilization and can differ from each other in size, form, and function. Some species produce both sperm and ova within the same organism
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A population of lizards lived in an ecosystem that was prone to flooding. After many generations, most of the lizards in the population had
longer legs than their ancestors, which helped them flee from floods. Which statement best explains this change?
A: the lizard genes spontaneously mutated to address the flooding threat
B: Genetic variation among lizard limbs allowed for natural selection to occur
C: The limbs were artificially selected because humans probably caused the flooding
D: The lizards with longer limbs cloned themselves, ensuring survival of the species
ILL MARK BRAINIEST PLS HELP
Answer:
B
Explanation:
Adaption occurs though natural selection and genetic variation
Blood Types;
A man with type O marries a woman with type AB.
Several children were born.
1. What is the genotype of the man?
2. What is the genotype of the woman?
3. True or false? the mother of the man had type AB blood.
4. Could the mother of the woman have type O blood?
5. what fraction of offspring would have type B blood?
6. what fraction of the children would have type AB blood?
7.Could this couple have a child with type O blood?
Please answer all parts of the question!
2 ways to change the rate of a chemical reaction
Answer:
Increase the concentration of a reactant.
Increase the temperature of the reactants.
HELP PLEASE! Why is it very unlikely for a frameshift mutation to be a silent mutation?
Answer:
Explanation: A frameshift mutation completely changes the genetic code from the point of the mutation, so the protein made as a result of the mutation would have the incorrect structure and would not function as it should.
Is Sustainable development possible? Is sustainable development worth try to achieve? Why?Why not?
Answer:
Yes Sustainable development possible
Drag each item to indicate whether it supports ocean acidification or ocean warming. (2 points)
Ocean Acidification Evidence
Ocean Warming Evidence
:: expansion of ocean volume
:: difficult for some species to make shells
:: larger concentration carbonic acid
:: melting of glaciers and ice caps
growing difficulty in absorbing carbon dioxide
:: organisms more prone to illness
Answer:Ocean Acidification Evidence: Difficult for some species to make shells , larger concentration, organisms prone to illness . Ocean warming evidence: Melting of glaciers, expansion of ocean volume, growing difficulty in absorbing
Explanation:
Ocean Acidification Evidence includes difficult for some species to make shells , larger concentration, organisms prone to illness. Ocean warming evidence encompasses melting of glaciers, expansion of ocean volume, growing difficulty in absorbing.
What is ocean acidification?The massive amount of carbon dioxide absorbed by the ocean dissolves as carbonic acid in seawater.
This is known as ocean acidification, and it is literally causing a sea change that is threatening the basic chemical balance of ocean and coastal waters from pole to pole.
As greenhouse gases trap more solar energy, the oceans absorb more heat, resulting in higher sea surface temperatures and rising sea level.
Ocean acidification is the decrease in pH of ocean water caused by CO2 dissolution in water.
Ocean warming, on the other hand, is the long-term gradual increase in the average temperature of the Earth's atmosphere. Ocean acidification and global warming are both negative consequences of human activity.
Acidification of the Oceans Evidence: It is difficult for some species to make shells, there is a higher concentration, and organisms are prone to illness.
Melting glaciers, increased ocean volume, and increasing difficulty absorbing are all signs of ocean warming.
Thus, this is the match for the given scenario.
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2 When molecules are spread evenly across the cell ________ membrane,
is reached.
a equilibrium
b. difference
C. solution
d. transportation
Answer:
The answer is A. Equilibrium
Explanation: And I know it's a Equilibrium because I got it right the the quiz hopes this helps :) mark brianlest pls
Describe and explain the abiotic and biotic factors that may affect the numbers or distribution of organisms in their habitats.
Answer:
The biodiversity and distribution of organisms within an ecosystem is due to both abiotic (non-living) and biotic (living) factors. Abiotic factors are non-living variables that can influence where organisms can live. Examples of abiotic factors include: light intensity.
Explanation:
What is the meaning of the term disturbance?
Group of answer choices
an event that makes a species extinct) A
an event that changes a community) B
an event that decreases resource availability) C
an event that kills organisms) D
Answer:
B
Explanation:
Which process occurs in all living organisms at all times?
O cellular respiration
aerobic respiration
anaerobic respiration
O photosynthesis
Answer:
It is:
A. Cellular RespirationExplanation:
took the test
Which of the following is true during the autumn?
O A. Sunset gets later each day.
O B. Sunrise gets earlier each day.
O C. More hours are added to the day.
O D. Sunrise gets later each day.
SUBMIT
Answer:
the only decently right answer would be C.
Explanation:
I don't think any of these actually have to do with autumn, but I guess C is the best answer
Answer: answer d on apec
Explanation:
PLS SOMEBODY HELP!!!!
Then they want us to name 4 mRNA bases for the codon
Answer:
It was also known that there are only four nucleotides in mRNA: adenine (A), uracil (U), guanine (G), and cytosine (C).
Explanation:
I hope this helps :)
What is the most common gas in Earth's atmosphere?
a
Carbon Dioxide
b
Oxygen
c
Nitrogen
d
Hydrogen
Answer:
answer number A carbon dioxide
Answer:
a
Explanation:
carbon dioxide is a common gas
What are the different types of granulocytes? Select all that apply.
basophils
T-cells
eosinophils
monocytes
neutrophils
There are four types of granulocyte;
Explanation:
basophils, eosinophils, neutrophils and mast cells.
The different types of granulocytes are: basophils (option A), eosinophils (option C), and neutrophils (option E). Granulocytes are a type of white blood cell that are characterized by the presence of granules in their cytoplasm.
What are granulocytes?The three types of granulocytes are basophils, eosinophils, and neutrophils such as basophils are the least common type of granulocyte. They are characterized by their large, dark-staining granules and play a role in allergic reactions and inflammation. Basophils release histamine, which causes blood vessels to dilate and become more permeable. Eosinophils are the second-least common type of granulocyte, and neutrophils are the most common type of granulocyte. They are characterized by their small, pale-staining granules.
Hence, the different types of granulocytes are: basophils (option A), eosinophils (option C), and neutrophils (option E).
Learn more about the granulocytes here.
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Yeast that is commonly used in bakery and beverage industries belongs to which group of microorganism?
Answer:
Fungi
Explanation:
Yeast is a microorganism that has found great use in industries as it is used in the bakery and beverage industries. This use of yeast can be attributed to its ability to undergo alcoholic fermentation process in absence of oxygen.
Yeast as a living or biological eukaryotic organism that belongs to a kingdom called FUNGI. Yeast causes dough to rise in bakery due to the synthesis of CO2 via fermentation.
Please put in order for a food chain.
Answer: C) The benthic invertebrates would decrease in population size because they are eaten by the sea ducks and the phytoplankton would increase in population size.
Explanation:
The benthic invertebrates are eaten by sea ducks. Sea ducks are eaten by bald eagles. If the bald eagle was removed, there would be more sea ducks because they will have no more predators. Since there are more sea ducks, they will need to eat more food, like benthic invertebrates. The benthic invertebrates would have a lower population because the sea ducks eat more of them.
Why not the other answers:
A) The bivalves would not increase in population size. Without the bald eagle preying on sea ducks, there would be more sea ducks, who need to eat more food, such as eating more bivalves.
The phytoplankton would not decrease. With sea ducks eating more food, more benthic invertebrates are eaten. There would be less benthic invertebrates to eat phytoplankton.
B) Tundra swans were never eaten by bald eagles. There is no arrow connecting them.
D) Wading birds were never eaten by ospreys. There is no arrow connecting them.
Explanation:
3. Any spread of particles from area of high concentration to area of lower 1 point
concentration. This question has more than one answer. *
Diffusion
Active Transport
Osmosis
U Phagocytosis
Passive Transport
Facilitated Diffusion
Pinocytosis
Receptor-Mediated endocytosis
Exocytosis
Answer:
Diffusion
Osmosis
Passive transport
7. In which direction does water move through a plant?
A. Upward from the roots
B. Sideways through the leaves
C. Downward from the leaves
Answer:
A. Upward from the Roots
Answer:
The water Moves through a plant UPWARD FROM THE ROOTS.
Explanation:
When we water the plant, we water from the root and the water goes up in the plant and that's how the every part of the plant is fully watered.
Question 7
0.5 pts
When does DNA replication occur
before the cell divides
O during cell division
O after the cell divides
O before protein synthesis
Answer:
I think your answer will be out of the cell divide
Which statement describes how to appropriately handle live
HELPPPPP Some factories that burn coal produce smoke with harmful chemicals, such as sulfur. Scrubbers are devices that are attached to the smokestacks to reduce the amount of sulfur put into the atmosphere. To evaluate the effectiveness of these devices, what data would need to be collected?
A. The percentage of sulfur contained, on average, in a certain amount of coal
B. The amount of coal a factory burns each year, and how much sulfur it emits
C. The increase, over time, in the use of scrubbers by factories that burn coal
D. The amount of sulfur emitted by a smokestack before and after the scrubber is attached
Answer:
D. The amount of sulfur emitted by a smokestack before and after the scrubber is attached
To evaluate the effectiveness of these devices, the data would need to be collected is the amount of sulfur emitted by a smokestack before and after the scrubber is attached. The correct option is D.
What are scrubbers?Scrubbers are devices for reducing air pollution that employ liquid to filter out gases or particles from an industrial exhaust or flue gas stream. To effectively remove particles and polluting gases from the gas flow, this atomized liquid (usually water) entrains them.
Wet scrubbers are tools that use direct contact with a liquid spray to capture suspended particles. As the many small droplets in the spray collide with and entrain the particulates, a scrubber effectively washes the contaminants out of the contaminated air stream.
Therefore, the correct option is D.The amount of sulfur emitted by a smokestack before and after the scrubber is attached.
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If you have the frequency of the recessive allele for a gene, how do you get the
frequency of the dominant allele?
A)Multiply the frequency by the size of the population.
B)Subtract the frequency of the recessive allele from 1.
C)Take the square of the frequency of the recessive allele.
D)Take the square of the frequency of the dominant allele.
is the fins are for breathing?
Answer: yes
Explanation:
Yes
Answer:
Overall, our results demonstrate that the pectoral fins are capable of ventilating cutaneous surfaces and dissipating Po2 boundary layers, thus supporting the role of the pectoral fins as respiratory structures in larval fishes.
how is mitosis important for sexual reproduction?
Please help!
2. Which is not true about meiosis? A. The chromosomes in the daughter cells are half the number from the parent cell. B. The chromosomes in the daughter cells are the same number as the parent cell. C. The only cells that will undergo meiosis will become sperm or egg cells used for reproduction.
D. The shuffling of genes happens in meiosis.
Answer:B
Explanation:even if she is the daughter that doesn’t mean she will have the same chromosomes. Everyone in this world has different chromosomes even twins
Using the diagram below, identify the correct chemical formula for the molecule
shown.
Answer:
p(OH)30
Explanation:
add the OH all together
Connor placed a piece of celery plant in a cup of colored water. The diagram shows the results of the experiment.
Which structure in the celery plant was most likely responsible for making the leaves turn red?
phloem
pollen
embryo
xylem
Answer:
xylem
Explanation:
The xylem is responsible for the transport of water.
Answer:
XYLEM is the answer for you :)
Explanation:
In what layer would you expect to find fossils most like the animals alive today?
pls explain
Answer:
Not sure
Explanation:
ERRE
Which phrase best describes the outer planets?
rocky with few moons
gaseous with slow rotations
dense with few moons
gaseous with low density
Answer:
Gaseous and low density is the phrase that best describes the outer planets of the solar system.
Let me know if this helps!
Answer: The answer is: gaseous with low density
Explanation: I have my ways ;>
Have a great day!
-Sunny