Answer:
Particulate matter is the sum of all solid and liquid particles suspended in air many of which are hazardous. This complex mixture includes both organic and inorganic particles, such as dust, pollen, soot, smoke, and liquid droplets.
Particulate matter contains microscopic solids or liquid droplets that are so small that they can be inhaled and cause serious health problems.
Explanation:
Exposure to such particles can affect both your lungs and your heart. Numerous scientific studies have linked particle pollution exposure to a variety of problems, including: premature death in people with heart or lung disease. nonfatal heart attacks.
Fish have a close de circulatory system.
What does this mean?
A. The blood is not contained in tubes or pumped by a
heart.
B. They have arteries and veins that contain and carry the
blood.
C. They do not require oxygen to survive.
D. They are warm-blooded.
Answer:
B
Explanation:
A closed circulatory system means that the blood is carried through specialized pathways or tubes to other parts of the body. In the case of fish this is their veins and arteries.
Which one of the following statements about restriction endonuclease is true
all restriction endonucleases cut DNA at random sites
all restriction endonucleases cut DNA at specific sites
all restriction endonucleases join DNA segments at specific sites
all restriction endonucleases join DNA at random sites
Answer:
the correct answer is c
Explanation:
What type of biological molecule is an exonuclease.
Answer:
Enzyme (protein)
Explanation:
Exonucleases are enzymes that catalyze the removal of nucleotides in either the 5-prime to 3-prime or the 3-prime to 5-prime direction from the ends of single-stranded and/or double-stranded DNA. Removal of nucleotides is achieved by cleavage of phosphodiester bonds via hydrolysis.
A way to measure the economy's performance is to measure categories of national
A) exports.
B) imports.
C) income.
D) resources.
Which characteristic do viruses share with living things?.
Recall that the Sun, like Earth, can be divided into layers called zones. Nuclear fusion occu
in this layer, or zone, of the Sun.
The answer choices
The convection zone
The photosphere
The radiative zone
The core
Answer: The sun glows because of nuclear fusion that takes place in its core. What do nuclear reactions on the sun produce? Nuclear reaction inside the Sun is fusing of Hydrogen to Helium and release out.
Explanation: (I think this your answer) Good Luck
What direct effect do histamines have on capillaries?.
Answer: They allow capillary walls to open and become leaky. They decrease the diameter of capillaries. They prevent phagocytes from sticking to the walls of capillaries. They allow capillary walls to open and become leaky.
Explanation:
Whole grains, like oats, barley, and wheat, are good sources of the B-complex vitamins. These foods are also considered very good sources of energy. Why would whole grains be good sources of energy?
A.
They are rich in fats, which are broken down and stored in the body through processes that require B-complex vitamins.
B.
They are rich in complex carbohydrates which provide energy, and their B-complex vitamins are important for transporting these carbohydrates to cells that need energy.
C.
They are rich in fats, which can only be transported to energy-producing cells with the help of B-complex vitamins.
D.
They are rich in complex carbohydrates which can be broken down for energy, and their B-complex vitamins are involved in metabolic processes that release this energy.
Answer:
the correct answer is B,
Explanation:
they are rich in complex carbohydrates which provide energy and their B complex vitamins are important for transporting these carbohydrates to cells that need energy
What would happen to a hurricane if more warm
water evaporates??
Answer:
reduces the warm core structure of the hurricane.
Explanation:
Since evaporation is a cooling process, it reduces the warm core structure of the hurricane and limits vertical development of convection.
what is a simple system?
Is this right? Or is it the last one? Thank you!!
Answer:
yeah, it should be right :)
Answer:
yes i believe that it is
Explanation:
Identify the stages of the cell cycle using the drop-down menus. Label A-E
Picture attached
Answer:
A - G1 phase
B - G2 phase
C - S phase
D - Mitosis
E - Interphase
Explanation:
Interphase is all the parts of the cell cycle excluding mitosis, and encompasses G1, S, and G2 phases. Cells spend most of their lives in interphase
G1 is the first gap phase, where the cell is growing and making checks in preparation for mitosis. During S phase (the synthesis phase), the DNA is replicated. This is so a full copy of the DNA can be passed on to the daughter cells.
During the G2 phase, the final checks are made before the cell undergoes mitosis, which is where the cell divides.
Answer:
A. G1 phase
B. S phase
C. G2 phase
D. Mitosis
E. Interphase
Hope this helps!
A short, thick beak is best for birds whose food consists of thick seeds Question 4 options: True False.
Answer:
true
Explanation:
i think it will be easier to pick seed when the beak is short and thick
24. The independent variable on a graph is
What is the independent variable of a graph
Answer:
The independent variable belongs on the x-axis (horizontal line) of the graphand the dependent variable belongs on the y-axis (vertical line). The x and y axes cross at a point referred to as the origin, where the coordinates are (0,0).
Explanation:
please mark as brainlist answers
could i get some help matching these
Answer:
nucleus circle thats all i know srry
Explanation:
During aerobic respiration, NADH delivers electrons to ______, and then ______ captures electrons at the end and joins with hydrogen to form water.
During aerobic respiration, NADH delivers electrons to electron transport chain, and then oxygen captures electrons at the end and joins with hydrogen to form water
Biodiversity is key for the stability of ecosystems Explain why biodiversity is so important in an ecosystem.
Answer:
Variety of life is also called biodiversity The number of species of plants, animals, and microorganisms, the enormous diversity of genes in these species, the different ecosystems on the planet, such as deserts, rainforests and coral reefs are all part of a biodiversity.
why is it important
Declining biodiversity is a concern for many reasons.
1)A larger number of plant species means a greater variety of crops
2)Greater species diversity ensures natural sustainability for all life forms
3)Healthy ecosystems can better withstand and recover from a variety of disasters.
4) Provides biological resources such as Food , Medicinal resources and pharmaceutical drugs , Wood products , Ornamental plants , Breeding stocks, population reservoirs , Future resources , Diversity in genes, species and ecosystems
5) Ecosystem services as Protection of water resources and soil , Nutrient storage, Pollution breakdown
Explanation:
Biodiversity is important in ecosystems because it prevents the extinction of species, allows organisms to adapt to changes in the environment, and provides a wide range of materials and foods for survival. The number of species of plants, animals, and microorganisms, the enormous diversity of genes.
How can our lack of ecological understanding harm us?.
Answer:
Lack of understanding ecology has led to degradation of land and environment which is home to other species thus leading to extinction and endangerment of species because of lack of knowledge e.g. dinosaurs ,mammoth, white shark ,black rhinos , sperm whales etc.
Also Know, why is it important for humans to study the ecosystem? The study of ecosystem is important for Environmental Conservation, Resource Allocation, reduce pollution and destruction of ozone layer. It provides information about the benefits of environment and judicious use of Earth's resources in ways that make the environment healthy for future generations.
Lack of ecological understanding will result in natural resource degradation including things like soil erosion, deforestation, wildlife extinction, energy shortages, damage to marine ecosystems, and depletion of mineral resources.
What is ecological understanding?A subfield of research called ecology includes the areas of human science, population, neighborhood, ecosystem, and biosphere.
Ecology refers to the study of organisms, the environment, and the interactions between organisms and their surroundings.
The main objective of an ecologist is to increase their understanding of the life processes, habitats, interactions, and biodiversity of species.
Therefore, Lack of ecological knowledge can lead to natural resource degradation, which encompasses issues like soil erosion, deforestation.
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What is the term for disease-causing organisms or agents?
bacteria
pathogens
viruses
fungi
Answer:
answer is
Explanation:
B. pathogens
hope it helped
Answer:
I hope this helps.
Explanation:
Which of these is an example of an independent
variable and its effect on a dependent variable?
A. age and race
B. burgers and hotdogs
C. the Sun and the temperature outside
D. cooking at home and ordering takeout
The independent variable is the one that causes a response in the dependent variable. Option C. the Sun and the temperature outside
What is an independent variable?Refers to all the variables in an experiment that provoke a response in another variable.
An independent variable is the one that changes or is controlled and modified in the experiment to analyze how another variable responds to it. It changes to analyze its effects on the dependent variable.
What is a dependent variable?Refers to the variable, which response depends on any change in the independent variable.
It represents a quantity of something whose value depends on how the independent variable is modified. The change in the dependent variable might be proportional or inversely proportional to the change in the manipulated variable.
In the exposed example, the correct option is C. the Sun and the temperature outside.
The Sun ⇒ Independent variable ⇒ According to how its proximity fluctuates it provoke a temperature change.Temperature ⇒ Dependent variable ⇒ It depends on the Sun
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PLEASE HELP ASAP!
1.
2.
3.
4.
5.
6.
Answer:
hi your answer is number 2
if a scientist used radiometric dating on a rock sample which of the following would she likley be trying to find out
Answer:
sedimentary rocks
Explanation:
can be dated using radioactive carbon, but because carbon decays relatively quickly, this only works for rocks younger than about 50 thousand years. So in order to date most older fossils, scientists look for layers of igneous rock or volcanic ash above and below the fossil.
which of the following is not part of the integumentary system
Answer:
hypodermis is not part of the integumentary system.
Explanation:
because The integumentary system consists of the epidermis and the dermis.
What do we call a lake created behind a dam to store water?
A. kettle lake
B. modified lake
C. reservoir
D. drainage basin
Answer:
C. Reservoir
a reservoir is a manmade lake that was created for storing water.
Explanation:
What characteristic is shared by both inceptisols and entisols, the soils of flood plains? a. they both have well-developed soil horizons and profiles. b. both are young and only beginning to develop horizons and a soil profile. c. they are both at the final stage of soil development. d. none of the above please select the best answer from the choices provided a b c d
The characteristic is shared by both inceptisols and entisols, the soils of flood plains are b. both are young and only beginning to develop horizons and a soil profile.
The soil horizon is a layer parallel to the soil floor whose bodily, chemical and organic traits vary from the layers above and beneath. Horizons are described in lots of instances with the aid of using apparent bodily features, especially color and texture.
What is the soil horizon?Most soils have 3 foremost horizons (A, B, C) and a few have a natural horizon (O). The horizons are: O (humus or natural): Mostly natural remember which includes decomposing leaves. The O horizon is skinny in a few soils, thick in others, and now no longer gift in any respect in others.
Thus it is clear that the above answers are correct.
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Answer: B
Explanation:
What types of cells perform photosynthesis
Answer:
Photosynthetic cells are quite diverse and include cells found in green plants, phytoplankton, and cyanobacteria. During the process of photosynthesis, cells use carbon dioxide and energy from the Sun to make sugar molecules and oxygen.
Explanation:
i hope this helps :)
Green plants, phytoplankton, and cyanobacteria all have cells that can synthesize oxygen.
Thus, Photosynthetic cells are highly diverse. Cells create sugar molecules and oxygen during the process of photosynthesis by using carbon dioxide and energy from the sun.
Chloroplasts, specialized cells present in plant cells, are principally responsible for photosynthesis.
The cells of the leaves of plants, notably the specialized structures known as mesophyll cells, are where photosynthesis mostly takes place within plant cells. Numerous chloroplasts, where photosynthesis occurs, are present in the mesophyll cells.
Thus, Green plants, phytoplankton, and cyanobacteria all have cells that can synthesize oxygen.
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If an organism has a diploid number of 22, its haploid number is
Examine the evolutionary diagram below. What does the diagram imply about the peafowl and field mouse?
Answer:
Where is the diagram? Just show it to me and I will solve the question for you with an explanation. Okay? Have a great day! :)
Explanation:
I NEED HELP QUICK domain F has these chareristics 1 cells do not have nuclus 2 all are unicellular 3 some move some do not move 4 all make food using chemicals instead of light 5all live in hostile environments what domain is F? Archaea eukarya Bactria
Answer:
Prokaryotes have been and are able to live in every environment by using whatever energy and carbon sources are available. Prokaryotes fill many niches on Earth, including being involved in nutrient cycles such as nitrogen and carbon cycles, decomposing dead organisms, and thriving inside living organisms, including humans. The very broad range of environments that prokaryotes occupy is possible because they have diverse metabolic processes. Phototrophs (or phototrophic organisms) obtain their energy from sunlight. Chemotrophs (or chemosynthetic organisms) obtain their energy from chemical compounds.What is the role of transport proteins in biological membranes?
La naturaleza de las proteínas de membrana determina su función: ... Transportadoras: son proteínas que cambian de forma para dar paso a determinados productos.
Receptores: Son proteínas integrales que reconocen determinadas moléculas a las que se unen o fijan..
Answer:
Transport proteins function in both active and passive transport to move molecules across the plasma membrane. ... These channel proteins are responsible for bringing in ions and other small molecules into the cell. It's important to remember that each channel protein can only bring in a specific molecule.