Answers
Related Questions
Select the correct answer.
A pond shows the presence of algal bloom in it. For night-time, what is the interpretation with respect to the amount of oxygen and nitrates dissolved in that water?
CA Amount of dissolved oxygen will be lesser than the average, and amount of nitrates will be high due to the presence of a large number of algae in it.
B. Amount of dissolved oxygen will be higher than the average, and amount of nitrates will be less due to the presence of a large number of algae in it.
C Amount of both, oxygen and nitrates, will be higher than the average due to the presence of a large number of algae in it.
Answers
Answer:
B
Explanation:
Amount of dissolved oxygen will be higher than the average and amount of nitrates will be less due to presence of algae in it
Answer:
B
Explanation:
The_________controls the movement of materials into and out of the cell.
a.) cell membrane
b.) nucleus
c.) cytoplasm
d.) mitochondrion
Answers
Answer:
cell membrane
Explanation:
Answer:
cell membrane
Explanation:
The ring canal, stone canal, radial canals, and madreporite are all parts of the
system
O a. Nervous
O b. Water Vascular
O c. Circulatory
d. Digestive
Answers
please help i really need this done a lot of points for a reliable answer please
Answers
Answer:
True
Explanation:
I need an answer for this ASAP. it’s number 6 7 8. 52 points to first person
Answers
7. Hailstorms, ice storms, thunderstorms, windstorms, tu rica es and tornadoes.
6 high air pressure experts a force on the surrounding low air pressure results in hire sea levers
Answer:
6. So high air pressure over a sea area corresponds to low sea level and conversely low air pressure (a depression) results in higher sea levels.
7. Thunderstorms, Tornadoes, Hurricanes, Winter storms
8. weather is short-term changes in the atmosphere and climate what the weather is like over a long period of time in a specific area.
Hope this is helpful!
Predict the likely effect on the ability of substance L to enter the cells if substance L is attached to a large protein instead of free in the
culture.
Answers
Answer:
Since the cell membrane is semi-permeable, the likelihood of substance L entering the cell attached to a large protein is lower than that of substance L free in the culture. Substance L enters the cell membrane through active transport, but the cell membrane may block the larger protein, thus blocking substance L, if it is attached to the large protein.
Explanation:
I need helppp on thisss !!!
Answers
Answer:
H
Explanation:
Why are massive main-sequence stars not
likely to have planets that contain life?
1. The life zones around these stars are too
small.
2. These stars would sweep away all of the
material from which planets could form.
3. These stars are on the main sequence for
too short a time to alllow life to evolve
4. These stars are too hot to allow water to
exist as a liquid on any planets that might
form.
5. These stars are almost always binaries
and planetary orbits are unstable around bi-
naries.
Answers
Answer:
5
Explanation:
Drosophila eye color is an X-linked trait. Red eye color is dominant, and white eye color is recessive. Which Punnett square shows the probability that 100 percent of offspring will have red eyes?
Answers
Answer:
Which of the following equations are balanced correctly?
2Ag2O → 4Ag + O2
Zn + HCl → ZnCl2 + H2
Cu + H2O → CuO + H2
2C4H10 + 13O2 → 8CO2 + 10H2O
Explanation:
Answer: it’s A
Explanation:
Austin is conducting an experiment to determine which dog food his dog likes the best. He gives his dog three different kinds of dog food, each type for two weeks at a time. Austin gives his dog the same amount of food every day. He then records how much of the food his dog eats. What is the independent variable in Austin's experiment?
type of dog food
amount of dog food
type of dog eating dog food
length of time for each dog food
Answers
Answer:
It would be the type of dog food.
Explanation:
please help lot of points i need helppppp
Answers
Why is this statement not a hypothesis?
Sunflowers require soil and plenty of sunlight and water to grow and thrive.
Answers
So if that statement were reworded to a hypothesis it would be like “If sunflowers are planted in soil and given plenty of sunlight and water (action) it will grow and thrive (desired result).”
i have no idea if that made any sense but like thats the best way i can explain it
Answer:
It’s stating exactly what is going to happen with no guess and it’s not in an if,then format
science help pls, thank you
Answers
Answer:
1A. Agriculture
2. C.Industrial
5. B
6. A
7. D.Cities
Explanation:
It is known as dead zone because of the little or absence of oxygen in the water body. It doesn’t support life. Sources of Pollution in water bodies are mainly by Agricultural acitivities. Other sources include industrial wastes, municipal uses etc.
Science has had no negative impacts on society.
Please select the best answer from the choices provided
OT
OF
Answers
Answer:
false
Explanation:
Answer:
the answer is false
Explanation:
Mendel used more than 28,000 pea plants in his experiments. Why is it
important that he studied such a large sample of pea plants?
A. Having more samples gave him results that were closer to the
predicted ratios.
B. The pea plants were very inexpensive.
C. Using more plants made the experiments take less time.
D. Most pea plants die after producing seeds.
Answers
Draw a cladogram that best represents the possible evolutionary relationship between species A, B, and C
And three animals that could match this phylogenetic tree.
Answers
Answer:
Monotremes, marsupials, and placentals are the three animals that could match this phylogenetic tree.
Explanation:
Monotremes, marsupials, and placentals belong from a common ancestor. Those organisms which have one common ancestor are also called monophyletic. These animals have some changes which occurs with the passage of time but most of characters are similar to each other. In placentals animals placenta is present while in Monotremes and marsupials this placenta is absent.
What is a subunit vaccine made from?
Answers
Answer:
Subunit vaccines are composed of a part of the virus particle responsible for inducing protective immunity. A subunit vaccine produced by recombinant DNA techniques would provide an efficient and inexpensive alternative method for the control of this commercially important disease.
Why does the northern hemisphere experience Spring in March, while the Southern Hemisphere experiences fall?
Answers
Explanation:
because the tilt of the earth on its axis
Answer:
The Sun is directly overhead in the Northern Hemisphere in March The Southern Hemisphere receives more direct rays from the Sun in March. The Northern and Southern Hemispheres get the same amount of energy from the Sun in March.
Explanation:
i hope this makes sense and helps out a little bit :))
True or False: Too much carbon in seawater prevents clams, snails, and other
sea animals from growing their shells.
Answers
Answer:
true
Explanation:
the carbon isn't what they need it's oxygen
What are the positive effect of technology
Answers
- easier & faster communication (social)
- more products & companies (economics)
- innovations in laws and regulations through platforms (poltical)
In what ways did Charles Lyell impact Charles Darwin’s theory of evolution? What type of relationship did Darwin have with Charles Lyell? How did Darwin learn about Charles Lyell's ideas?
Answers
Answer:
They both believed that continuous and gradual change is law of nature
Explanation:
Charles Lyell's “Principles of Geology “ encouraged Charles Darwin to think of evolution of living organisms as a slow process just like the slow geological processes taking place since millions of years. As per Charles, the slow and little contribution of continuous geological events shaped the present geological attributes of the earth. Likewise Charles Darwin’s theory of evolution also earmarked accumulated effects of small gradual changes over immense spans of time. They both believed that continuous and gradual change is law of nature.
Plz help with my work I really stuck on this
Answers
Basically, producers are things like plants the are the first source of food. Primary consumers are the first to eat the producers (like small fish, insects, etc) Secondary consumers (foxes, larger fish, etc) consume the primary consumers, and tertiary consumers (sharks, humans, whales, etc.) consume the secondary consumers. Decomposers (fungi, bacteria, etc) like the name suggests decompose rests of food and organisms and send the nutrients back into the earth.
Questions 2&3:
An autotroph is an organism that produces its own food (like plants do through photosynthesis) and a heterotroph is an organism that cannot produce its own food and has to seek out other sources of food.
Question 4:
Grass, Dragonfly, Trout, human
Question 5:
Bean plant, rabbit, fox, bacteria
Questions 6&7:
They are a little harder to explain in text form but hopefully my explanations can help you figure out the answer yourself.
Hope this helped!
The landing of pollen on the stigma is followed by the growth of the pollen
tube towards the ovule. The pollen tube growth is guided by chemicals released from the pistil of the female flower. What is this type of growth in
the direction of chemicals called?
• positive chemotropism
• negative phototropism
• positive phototropism
Answers
Answer:
positive chempotesiem
Explanation:
You are evaluating the effect of different types of fertilizers on plant growth. You plant 12 tomato plants and divide them into three groups, where each group contains four plants. To the first group, you do not add fertilizer and the plants are watered with plain water. The second and third groups are watered with two different brands of fertilizer. After three weeks, you measure the growth of each plant in centimeters and calculate the average growth for each type of fertilizer. Identify the independent variable, dependent variable, control group, and experimental group from this experiment?
Answers
Answer:
Control group - the plant group which has not received the fertilizers treatment.
Experimental group- the groups treated with different varieties of fertilizers.
Independent variable- amount of water and fertilizers
Dependent variable- growth of plants
Explanation:
A scientific experiment is performed in a way that the experimental samples are classified into the control and experimental groups. Also, the experiment involves various variables to be studied which can be classified as an independent variable and dependent variable.
In the given question, the experimental samples are:
1. Control group- The samples which are not provided with the variable being studied like the experiment is performed to test the effect of fertilizers and "the plant group which has not received the fertilizers treatment" can be considered the control group.
2. Experimental group- the samples in which the variable to be studied are provided with that is "the groups treated with different varieties of fertilizers."
In the given question, the variables are:
1. Independent variable- the variable which can be changed or modified or can change on their own like "amount of water and fertilizers" in the experiment.
2. Dependent variable- the variable which is being tested, can be measured and is dependent on an independent variable like the " growth of plants" in the experiment.
What part of the respiratory tract is considered the respiratory zone?
A. Bronchioles
B. Larynx
C. Trachea
D. Alveoli
Answers
Answer:
D. Alveoli
Explanation:
Functionally, the respiratory system is separated into a conducting zone and respiratory zone:
Conducting zone consists of the nose, pharynx, larynx, trachea, bronchi, and bronchioles. These structures form a continuous passageway for air to move in and out of the lungs.
Respiratory zone is found deep inside the lungs and is made up of the respiratory bronchioles, alveolar ducts, and alveoli. These thin-walled structures allow inhaled oxygen (O2) to diffuse into the lung capillaries in exchange for carbon dioxide (CO2).
The respiratory zone begins where the terminal bronchioles join a respiratory bronchiole, the smallest type of bronchiole, which then leads to an alveolar duct, opening into a cluster of alveoli.
Answer:
Yep, the correct answer is D.) Alveoli
Explanation:
Hope this helped you!Have a great day(:
does species extinction help with habitat destruction
Answers
Answer:
Yes, it does.
Explanation:
Habitat destruction is one of the main reasons species go extinct. If they have no place to live and be safe in their habitat, they're left in the open available to any predators ready for a meal.
Difference between homology and heterology?
Answers
Hello! I got the answer! So if you look at the word homo and hetero. Homo means the same and hetero means different. So homology is the study of to show the simliarity between organisms. And heterology is the study of to show difference between organisms. This is my first time answering! Anyways have a good day/night!!
Arctic ice retreat is threatening many species in this ecosystem. Their resources are being cut and they are needing to find new ways to survive. Do you think in your lifetime you will see drastic effects to the species in this ecosystem and why? Will that affect other ecosystems?
Answers
Answer:
no
Explanation:because they will find new ways to survive in the environment
Answer:
We are already seeing drastic effects to the ecosystem and it's wide assortment of species. Animals such as polar bears, and seals are losing their breeding and hunting grounds. Polar bears in particular are losing their ways to catch seals for food and interbreeding with grizzly bears. Fish and whales from warmer parts of the world are starting to move up north and are becoming invasive. Most importantly, since cold water from the melting ice are mixing with ocean currents, global climates and weather systems are changing course. Ultimately, in about 500 years, there could be a large Global Climatic Shift that may put us into another Ice Age.
nervous/endocrine questions help pls!!
Answers
Answer:
Explanation:
1. A
2. B
3. IDK.
Limiting Factors that are Density Dependent are affected by the size of the population
True or False
Answers
Answer:
this would be true
Explanation: these factors increase whi is what you asked right
