Explanation:
The algae, ferns and mosses all produce spores while conducting the asexual mode of reproduction. The seeds are produced by flowering plants called as angiosperms. The seeds are the produced by sexual mode of reproduction. These are produced by the fusion of the male gamete that is pollen and female gamete that is ovum in within the flowers of angiosperms. The fusion helps in development of zygote which is the precursor of seeds.
1 Write the functions of the following:
(a) Pseudopodia (b) Food vacuole
2. Define the following terms-
Phagocytosis
3. Explain how Amoeba takes in nutrition with the help of a diagram.
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1. Describe two pieces of evidence that whales have evolved from land mammals
Explanation:
In addition to the vestigial leg bones and the series of transitional species in the fossil record, there is physiological and genetic evidence.
The physiological evidence is that whales swim with a modified running motion. If they had been specially created in the sea, there is no reason to have this holdover from life on land to let them swim.
Evidence for a horizontal fluke comes from the muscle attachments to move that fluke. Muscles pull on bone when they contract. Therefore bones have little bumps (sometimes not so little) on them as they add bone to handle the mechanical force of the contractions. Flukes can be inferred by the placement and size of the bumps on the vertebrae where the muscles that move the fluke (tail) are attached. Flukes themselves are soft tissue, and thus do not preserve well. But the bumps on the bone show a clear preference for muscle attachments on the top and bottom of the vertebrae, and these bumps get larger as the muscles evolve to be larger to move the fluke. If there is any other explanation and another inference, creationists have not provided it.
There is also the position of the nostrils over the course of evolution.
If a person had A blood type, then the antigen found on the RBC would be_____.
A) A antigens
B) B antigens
C) both A and B antigens
D) No antigens
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The four differing nucleotide parts, called bases, are made of a few:Immersive Reader
A. Carbon and oxygen atoms
B. Hydrogen atoms
C. Nitrogen and phosphorus atoms
D. All of the above
The four differing nucleotide parts, called bases which are made of Carbon and oxygen atoms, Hydrogen atoms and Nitrogen and phosphorus atoms. So, the correct option is D.
What is Nucleotide?Nucleotides are defined as organic molecules composed of a nitrogenous base, a pentose sugar and a phosphate, which serve as the monomeric units of nucleic acid polymers such as deoxyribonucleic acid and ribonucleic acid, which are essential for all life-forms. There are essential biomolecules inside the Earth.
The sugar and phosphate groups which form the backbone of the DNA double helix, while the bases are located in the middle, a chemical bond between the phosphate group of one nucleotide and the sugar backbone of a neighboring nucleotide hold it together.
Therefore, the correct option is D.
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The photo shows muscle tissue.
What is the function of muscle tissue?
O A. To contract to cause movement in the body
B. To cover the body to protect other cells
C. To transport materials and defend the body
OD. To send signals to control the body
The production plan for seasonal products is developed from a charted
______ that tracks the best plants to sell at different times of the year.
The production plan for seasonal products is developed from a charted "product demand cycle" that tracks the best plants to sell at different times of the year.
This cycle takes into account the natural growth cycles of different plants, as well as consumer demand for those plants during certain seasons. By following the seasonal cycle, growers can ensure that they are producing the right plants at the right time, maximizing their profits and reducing waste. This approach also helps ensure a steady supply of fresh, high-quality products throughout the year, which is important for maintaining customer satisfaction and building a loyal customer base.
A product demand cycle is a chart that shows the expected demand for a product over the course of the year. The cycle helps businesses to plan their production schedule to ensure that they have enough supply to meet demand during peak seasons. For example, businesses can use the demand cycle to determine when to plant certain types of flowers or plants so that they will be ready for sale during peak seasons.
Overall, the product demand cycle is a crucial tool for businesses to plan their production schedule, manage their inventory levels, and maximize their sales during peak seasons.
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What can you do to help maintain healthy water
How do primary air pollutants differ from secondary air pollutants
What is added to pasteurized milk to get it to ferment?
a teaspoon of kefir grains
If Petal color was a complete dominant trait (A being red petals and a being white), what percent.
of offspring would be red?
hito what percentage of offspring would be red?
Answer:
75%
Explanation:
3/4ths are dominant, so 75% will be red.
Answer:
75%
Explanation:
What is the fuction of the spindle fibers
Answer:
they form a protein structure that divides the genetic material in a cell
Which type of mutation involves only one base pair?
Answer:
Point Mutation
Explanation:
Answer: point mutation
Explanation:
How do fish use diffusion in respiration?
Answer: you first give the mouth to mouth
Explanation: then you do chest compressions
Answer:
Fish and other aquatic organisms use gills to take up oxygen dissolved in the water and diffuse carbon dioxide out of the bloodstream. Some insects utilize a tracheal system that transports oxygen from the external environment through openings called spiracles.
Explanation:
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What happened during the Pleistocene to cause global cooling?
low solar activity
breakup of Pangaea
fossil fuel consumption
a shift in earth’s orbit
Answer:
D) a shift in earth’s orbit
Explanation:
^^^^^^^^^
A shift in Earth's orbit caused global cooling during the Pleistocene. This period, which began around 2.6 million years ago and lasted until about 11,700 years ago, was marked by a series of glacial cycles, with ice sheets advancing and retreating across much of the Northern Hemisphere. Hence the correct option is D.
What is Global cooling?Global cooling refers to a long-term trend of decreasing temperatures across the Earth's surface and atmosphere over an extended period of time. This can lead to changes in climate patterns, including changes in precipitation, sea levels, and weather events.
Global cooling can occur due to a variety of factors, such as changes in solar radiation, volcanic activity, or shifts in the Earth's orbit. In recent decades, global warming has been the predominant trend, with temperatures rising due to human activities such as the burning of fossil fuels and deforestation.
The cooling is thought to have been caused by changes in Earth's orbit, including changes in the tilt and orientation of its axis, as well as variations in its elliptical path around the sun. These changes affected the distribution of sunlight and solar radiation across the planet, leading to cooler temperatures and the growth of ice sheets.
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help
There is a sudden decrease in the food availability for wading birds. Make a claim about how the different levels of organization shown in the diagram will be affected. Summarize evidence to support your claim and explain your reasonin
Answer:
In the diagram you can see the water the birds are drinking is decreasing which means if the water is decreasing there will not be enough for all birds.
Explanation:
There is little to no controversy over what it means to be intelligent.
Please select the best answer from the choices provided
T Or F
Answer:
False. There are different ways to be intelligent and different measurements.
This statement is false that there is little to no controversy over what it means to be intelligent. Hence, it is false.
What is intelligence?Numerous characteristics, including abstraction, logic, comprehension, self-awareness, learning, emotional knowledge, reasoning, planning, creativity, critical thinking, and problem-solving, have all been used to characterize intelligence.
The nine types of intellect are as follows. The following fall under this category: naturalistic, musical, logical-mathematical, existential, interpersonal, linguistic, bodily-kinaesthetic, intra-personal, and spatial intelligence.
Intelligence is different for different people. Therefore, this statement is false that there is little to no controversy over what it means to be intelligent.
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According to Darwin's theory of natural selection, which of the following describes the individuals that tend to survive?
a.those that can change themselves to fit their environment
c.those that produces the fewest offspring
b.those that are the largest and produce the most offspring
d.those that have the variation best suited to their environment
Answer:
D
Explanation:
Darwin believed that the species with the best variation to their environment had the biggest chance at surviving.
Darwin believed that the species with the best variation to their environment had the biggest chance at surviving.
What is Natural selection?
The process by which species adjust to their habitats is known as natural selection. It is the force behind evolution.
The process through which populations of living things adapt and change is known as natural selection. A population's members are naturally varied, which means that they are all distinctive in some ways.
This variety indicates that some people have characteristics that are more environment-appropriate than others. People that possess advantageous qualities, or adapted traits, are more likely to live and procreate.
Therefore, Darwin believed that the species with the best variation to their environment had the biggest chance at surviving.
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what would happen if the fish pond floods
Answer:
actually no idea to be honest
Answer:
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the price of a book is thrice that of an exercise book. of a student spend #9600 on book and #8000 on exercise book, he has 56 items altogether:
(a) what is the price of an exercise book?
(b) what is the difference between the price of a book and an exercise book?
Answer:
a) price of an exercise book = #200
b) #400
Explanation:
Let x represent the price of the book
Let y represent the price of the exercise book
- According to this question, the price of the book is thrice that of an exercise book i.e. x = 3y
- Also, the question states that if a student spend #9600 on book and #8000 on exercise book, he has 56 items altogether. This means that to get how many books and exercise books he bought, we divide the price of book and exercise book he bought by the price of each book (x) and exercise book (y) respectively. Mathematically, this means:
- Student bought 9600/x books
- Student bought 8000/y exercise books
So, 9600/x books + 8000/y exercise books = 56 item
9600/x + 8000/y = 56
Since x = 3y
We can say;
9600/3y + 8000/y = 56
Find the L.C.M of 3y and y = 3y and solve using fraction method (see attachment).
9600 + 24000/3y = 56
33600/3y = 56
Cross multiply
33600 = 56 × 3y
33600 = 168y
Divide both sides by 168
33600/168 = 168y/168
200 = y
y = 200
Since, x = 3y
x = 3 × 200
x = 600
Therefore, the price of book (x) and exercise book (y) are #600 and #200 respectively.
b) The difference between the price of a book and an exercise book i.e. x - y
= #600 - #200
= #400
In August of 2014, residents of several Ohio cities that use Lake Erie as a drinking water source were warned not to drink tap water because of the presence of toxins released by blue-green algae (cyanobacteria). Which of the following is the most likely cause of recent blooms of blue-green algae in Lake Erie? Increased recreational use of Lake Erie Increased recreational use of Lake Erie A Cooler average summer temperatures Cooler average summer temperatures B Phosphorus contained in agricultural runoff Phosphorus contained in agricultural runoff C Carbon in wastewater from fracking operations Carbon in wastewater from fracking operations D Chlorine from sewage treatment plants along Lake Erie’s shoreline
Answer:
Phosphorus contained in agricultural runoff
Explanation:
The term eutrophication refers to the enrichment of surface water with nutrients. This process is related to human pollution activities.
Eutrophication is the biological process that generates in water by an oversupply of nutrients or organic matter. This matter, mainly compounded with nitrogen or phosphorous, favors the phytoplankton multiplication (microscopic plants growing on the water surface) and other aquatic plants. This overgrowth leads to an enhance in primary productivity. Nitrogenated compounds might come from human and animal wastes, while phosphorated compounds might come from fertilizers and other chemicals used in agriculture, that penetrates the soil and reaches water bodies.
Little by little begin sedimentation is caused by the death of some vegetable organisms that sink in the bottom. These sediments rich in organic matter suffer decomposition in the presence of oxygen.
When oxygen disappears, anaerobic bacteria act and produce fermentation.
On the surface, plants and phytoplankton keep growing, creating a mantle that impedes the light reach deeper areas. The phytoplankton overgrowth on the water surface and the fermentation processes in the bottom originate toxic compounds that damage the animals. Animals die, creating more sediments in the bottom where there are anaerobic conditions.
Decomposition and fermentation processes increase, producing a bad smell.
The result of eutrophication is the stratification of the water mass:
• First superficial layer, the overgrowth of blue-green algae, produces toxins and interrupts the pass of light to deeper areas. The surface then becomes warmer.
• The second layer might have oxygen available for the animals.
• In the third layer, there is no oxygen, so life is impossible for animals or plants.
• In the fourth layer, there are animals and plant remains in the process of sedimentation.
• At the bottom, there are organic matter and anaerobic bacteria in charge of decomposition and fermentation, through which they produce toxic gases and smell.
The local police have provided you with some missing persons reports. Look at the information for each missing person and compare it to your findings. Could the bones belong to any of these missing persons? If so, which ones, and why? Keep in mind that 1 inch = 2.54 cm. (2-3 sentences)
Answer:
That person whose height resembles the dead body.
Explanation:
The bones belong to any of these missing persons if we do analysis and compared the length of the dead bodies with the information of each missing person. If the height of the missing person resembles to the height of the dead bodies, we can send it for evaluation and confirming other information about that person such as gender or any fracture in the body. If these information are found correctly so we can conclude that this body resembles to the missing person who is separated.
In the kool aid mixture, what must there be more of, hydrogen ions or hydroxide ions?
Answer:
H+, hydrogen ions
2 4.4.2 Test (CST): Earth's Atmosphere
Question 2 of 15
The layer of the atmosphere with the highest temperature is the blank
Answer:
The Thermosphere.......
The layer of the atmosphere with the highest temperature is the thermosphere.
What is thermosphere?The thermosphere is the outermost layer of the Earth's atmosphere, and it is located above the mesosphere and below the exosphere. This layer is characterized by extremely high temperatures, which can reach up to 2,500°C (4,532°F) due to the absorption of solar radiation.
Despite these high temperatures, the thermosphere is not actually hot in the sense that we normally think of temperature, as the air density is extremely low and there is very little heat transfer to objects within it.
The thermosphere is also the layer of the atmosphere where phenomena such as auroras and meteors occur, as well as where many satellites orbit the Earth.
It is an important part of the Earth's atmosphere, as it helps to protect the planet from harmful solar radiation and provides a habitat for certain types of high-altitude organisms.
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Although longitudinal waves can travel through all media types, what is the disadvantage of this type of wave transmission? Particles become too close together as they bump into each other making it more likely to hit other particles down the line. The waves travel in all directions which does not ensure that it will come into contact with particles down the line. The efficiency of the wave transmission is greatly diminished as the media becomes less dense. The oscillation of one set of particles has a huge impact on neighboring particles.
Answer:
The efficiency of the wave transmission is greatly diminished as the media becomes less dense.
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Answer:
A mushroom and plants
Explanation:
This is because they have certain similarities unlike humans
Help! • What do you already know about genetics mutations? • What do you wonder about Genetics Mutations?
Answer: A mutation is a change that occurs in sequence of the DNA.
Explanation:
Mutation is capable of manipulating the genetic information carried by the genes. A mutagen is any agent which brings about changes in the genetic make up of an organism. Those mutations which occur at the somatic cells are called somatic mutations but those that occur at the germline cells are called as genetic mutations. The genetic mutations are heritable that means they are passed on from parents to their progenies.
The genetic mutations are important as they bring about evolution of new traits in the generation of a particular species or in the generation of a particular individual. For example, genetic disorders and diseases caused by the genetic mutations are passed on to the next generation like cystic fibrosis, phenylketonuria, color blindness, and others. Thus identification of a particular genetic mutation is important to determine the cause of genetic diseases and disorders.
How do consumers get nitrogen?
When organisms die, their bodies decompose bringing the nitrogen into soil on land or into ocean water. Bacteria alter the nitrogen into a form that plants are able to use :D
Answer: Consumers eat plants or other animals to get their nitrogen.
What does recycling mean?
Answer choices are in the picture below...
Answer:
C or D
Explanation:
recycling is meant to reuse something for different purposes which is why it could be either C or D. As for options A and B those are the opposite of recycling
(1 point)
Which of the following is a possible gamete for an individual with the genotype: Rrgg?
this organisation has been in place is the best 44455555to in a world that has been in the past for a long time pass to the voters in the past and the only one who was the