Answer:
Transition metals
Explanation:
The transition metals are usually harder than other metals such as the alkali metal, lanthanide series metals and the alkaline earthmetals.
The reason for this is because they have a stronger metallic bonding between their atom.
Hardness is a physical property which is attributed to intermolecular forces and the atomic arrangement
The transition metals are found in the d - block on the periodic table.
They have a d-orbirtal which confers extra electrons and higher degree of stability to the atom. The d-orbirtal provides more delocalized electrons for the metallic bonds formed.
Answer:
The answer is D), transition metals
Explanation:
I searched it up, and the only metal with hardness showing as a significant property was transition metals. I took the test, and transition metals is the answer. I also pulled this up on the internet:
Transition metals are hard which indicates the presence of covalent bonds. This happens because transition metals have unpaired d-electrons. The d-orbital which contains the unpaired electrons may overlap and form covalent bonds. Therefore, these transition metals are very hard.
What is ATP, and where is it made in your cells?
I need help asp
Answer:
ATP is Adenine Triphosphate and our cells use it for energy
It is produced in the mitochondria through cellular respiration
Explanation:
Need answer quick please!!
Which statement best summarizes how a parasite such as a tapeworm
causes disease?
A. Parasites use living cells to make new copies of themselves.
B. Parasites reproduce best in warm, moist environments.
C. Parasites are made up of genetic material surrounded by a
protein.
D. Parasites take nutrients from another organism's body.
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Answer:
D. Parasites take nutrients from another organism's body
Parasites by definition leech off of their hosts by stealing nutrients
Which letter in the rock cycle diagram represents metamorphic rock? 0) A) B) B C) D D)
Answer:
I'm not sure have you tried to or attempt it
Answer:
The correct answer is E
Explanation:
I had the question in usatestprep
Is the giant sequoia an example of a gymnosperm
Answer:
In the form of conifers, a class including pines, firs, cypresses and gymnosperms remain one of the dominant types of plant on Earth, particularly in the Northern Hemisphere. Some of the biggest plants on earth, like the sequoia, aka the Giant Redwood, which is a type of cypress, are gymnosperms.
Explanation:
Answer:
Giant sequoia, (Sequoiadendron giganteum), also called Sierra redwood, coniferous evergreen tree of the cypress family (Cupressaceae), the largest of all trees in bulk and the most massive living things by volume.
Explanation:
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Of the following 4 phyla, which has the fewest species?
A. Hepaticophyta
B. Ginkgophyta
C. Coniferophyta
D. Anthophyta
Answer:
B. Ginkgophyta - Estimated Number of Species: 1
Explanation:
Hepaticophyta - Estimated Number of Species: 9,000
Coniferophyta - Estimated Number of Species: 600
Anthophyta - Estimated Number of Species: 250,000
I hope this helps
Of the following four phyla, the phylum which has the fewest species is the Ginkgophyta. Thus, the correct option is B.
What is Ginkgophyta?Ginkgo is a genus of the non-flowering seed plants. The scientific name used for Ginkgo is also used as the English name. The order to which it belongs is called as Ginkgoales, they are first appeared in the Permian time scale, about 270 million years ago, and Ginkgo is now the only living genus present on the planet within the order.
Ginkgophyta is the phylum which is fewest species. Two of the three genera of the ginkgophytes are Ginkgoites and Baiera, these are extinct. The third genus is the Ginkgo, it has only one member, Ginkgo biloba, which is commonly called as the ginkgo tree.
Therefore, the correct option is B.
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During rain events, runoff brings an excess of nutrients (that have collected and become
stagnant on land), like nitrates, into the ocean. This spike in nutrients is called eutrophication.
Think of the effects of this change and answer the questions below:
a. Nitrogen is often the limiting factor in an environment for photosynthetic autotrophs (such as
plants and algaes). Draw a logistic growth graph representing the population of algae in the coastal ocean.
Answer:
please don't take my answer too seriously, I'm not too sure how to represent the algae part, but the nitrite part is pretty true. - an aquarist
Explanation:
Which of the following body locations contains cells with the largest surface-area-to-volume ratio?
A.
Jaw bones, in order to increase the speed of communication.
B.
Shoulder muscles, in order to provide strength in movement.
C.
Hair follicles, in order to grow quickly.
D.
Lungs, in order to exchange oxygen and carbon dioxide with the environment.
Answer:
D
Explanation:
lungs have cells with the largest surface area to volume ratio because the gases,(oxygen and carbon dioxide),need to diffuse in and out of the body quickly
A(n) ______ is the interaction that allows for atoms to join together.
A. electron cloud
B. molecular formula
C. chemical bond
D. valence electron
Answer: Chemical bond
Explanation: Chemical bond is an attraction between atoms that allows the formation of chemical substances that contain two or more atoms. The bond is caused by the electrostatic force of attraction between opposite charges, either between electrons and nuclei, or as the result of a dipole attraction.
Answer: c: chemical bond
Explanation:
Chemical bond is an attraction between atoms that allows the formation of chemical substances that contain two or more atoms.
The non directional movement of a plant part in response to temperature is called ____________
Answer:
thermotropism
Explanation:
Uh, yup.
Answer:
so you know that it is 65,987
Explanation:
1) If all Americans together consume 200 billion more calories than required,
how many additional people could be fed by this excess?
8,000,000,000
800,000
8,000,000
80,000,000
Answer: 80,000,000
Explanation:
Based on data from the World Bank in 2008, Americans consume a disproportionate amount of calories in relation to their population with Americans consuming 24% of the world's energy while only being 5% of the population.
It was estimated that Americans were consuming 200 billon more calories than was required and that this was enough to feed an additional 80 million people.
In a hostel 30 students have food enough for 40 days. how many students should leave the hostel so that the food is enough for 100 days ?
Answer:
in 40 days food is enough for 30 students
in 1 day food is enough for = 40×30
in 100 days food is enough for 40×30=100
= 12 students
12 Which statement best describes an interaction between the muscular system and the
respiratory system?
F The hormone adrenaline causes blood vessels to contract and send more blood to maja
muscles.
G Metabolic wastes generated by muscle cells are eliminated in urine.
H The diaphragm contracts causing the chest cavity to expand, which draws air into th-
lungs.
Nutrients absorbed in the small intestine are transported in blood to the brain.
body cystems A student made a partial
J
Answer:
the diaphragm contracts causing the chest cavity to expand, which draws air into the lungs
Explanation:
Every living thing needs ___ to surve.
-water
-carbon dioxide
-oxygen
Explanation:
The correct answer for ur question is oxygen
I need help anybody can help me please?
Answer: D
Explanation:
True or false spermatogenesis is results 4 egg cells capable of surviving
Polyester will absorb KOH True False
Answer: false
Explanation: Polyester is hydrophobic. For this reason, polyester fabrics don't absorb perspiration, or other fluids, leaving the wearer with a moist, clammy feel. Polyester fibers typically have a low level of wicking. Relative to cotton, polyester is stronger, with a greater ability to stretch
Above is a bar graph showing how the average family uses water. Fresh water is a vitally important resource and its supply is limited. You want to try and help conserve this resource by cutting the usage of one of the fixtures above in half.
Answer:
We can't see the bar graph but showers use a lot of water so my guess would be cutting back on the time spent in the shower.
Explanation:
Oxygen is taken from the water by
Explanation:
Humans use their lungs to inhale oxygen from the air. But worms, fish, crabs and other underwater animals use gills to get oxygen from the water. As water moves across an animal's gills, oxygen is removed and passed into the blood. Gills work better when there is more oxygen in the surrounding water.
What two things can happen to pyruvic acid? Explain both
Explanation:
Pyruvic acid supplies energy to living cells through the citric acid cycle (also known as the Krebs cycle) when oxygen is present (aerobic respiration), and alternatively ferments to produce lactic acid when oxygen is lacking (fermentation).Hope it helps
What similarities and differences exist in the body parts shown in image A? In your answer, evaluate the anatomy and mention the part’s function in the respective organisms.
Answer:
The six limbs shown in the image have a similar bone arrangement, but the size and shape of the bones vary among the organisms. The structures in the image serve different functions for each organism. Flippers helps whales swim, and arms help humans use tools. Horses and lions use their legs for support and movement, and a frog uses its legs to jump. Wings help birds fly.
Explanation:
Giving BRIANLIEST PLZ HELP AND ANSWER ASAP!
Answer:
a wedge
Explanation:
Answer:wedge
Explanation:
An animal was tested and the results revealed that not only was it expressing two colors on its fur, but it coded for those two colors in its genes.
Expressing two alleles at the same time is an example of…
Group of answer choices
CoDominance
Incomplete Dom
Multiple Alleles
Polygenic
Answer:
CoDominance
Explanation:
Which of the following plant is associated with Chronic Obstructive Pulmonary Disease in horses?
a.Eupatorium adenophorum
b.Lantana camara
c. Quercus griffithi
d. Bracken Fern
what about cytokinesis
Answer:
Cytokinesis is the physical process of cell division, which divides the cytoplasm of a parental cell into two daughter cells. ... Cytokinesis performs an essential process to separate the cell in half and ensure that one nucleus ends up in each daughter cell. Cytokinesis is the part of the cell division process during which the cytoplasm of a single eukaryotic cell divides into two daughter cells. Cytoplasmic division begins during or after the late stages of nuclear division in mitosis and meiosis.
Explanation:
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Alec saw footage of a landslide on the news. He saw rocks falling from the side of a mountain, with some of them smashing into each other and breaking apart. Alec witnessed
A.
erosion and weathering.
B.
erosion and compacting.
C.
weathering and compacting.
D.
weathering and sedimentation.
Answer: C. weathering and erosion
The water molecule is polar. What does this mean?
Answer:
polar means top or south
Explanation:
5 sentences each help me please
Answer:
1. The lack of clean water can affect people's lives because people use water for everyday things. If people do not shower with clean water, then what is the point of showering at all? Also, people use water to cook, so if people are using dirty water then you could get sick. Some people do not buy water, so you would have to boil the water each time you want to drink it. This is how a lack of clean water could affect people's lives.
2. There are many things that could change people's lives positevly. For example, if you move to a new state where it is warmer. If you go to a new school you could make new friends. Also, somebody new could move in down the street and you could have more friends. Even something as small as eating your favorite meal for dinner could change your life. You could remember it as being amazing. These are how changes (small and large) could change somebody's life.
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The table below shows salinity tests from coastal Louisiana following a salt water influx during hurricanes Katrina and Rita. If efforts are not made to reduce the salinity in these areas, what is the most likely long term effect?
A growth in the population of salt-intolerant types of plants
A shift in species composition to less salt-tolerant plants
A shift in species composition to more salt-tolerant plants
An increase in the diversity of salt-intolerant plants
A shift in species composition to less salt-tolerant plants is the most likely long term effect.
What are the characteristics of salt-tolerant plants?The salt tolerance test is performed using Tryptic Soy Broth with added sodium chloride (regular table salt) to create an overall salt concentration of 6.5%. It is a selective medium which tests the ability of an organism to survive in a salt-rich environment.
The salt tolerance of a plant is often defined as the degree to which the plant can withstand, without significant adverse effects, moderate or high concentrations of salt in water on its leaves or in the soil within reach of its roots.
Hypersensitivity to catecholamines may be the cause of salt sensitivity. A low sodium concentration in saliva deserves further study as a simple screening test to identify salt-sensitive subjects.
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Describe what a matrix organization is. Make sure you discuss the advantages and disadvantages of this structure.
Answer:
A matrix organization is an organizational structure where employs gets a command from two or more chain of lines and report multiple boss or manager and able to perform various roles in various functions.
Advantages:
- effective use of resources according to the roles in the function
- motivational atmosphere by performing multiple roles
- improved skills like, decision making and taking the initiative
Disadvantages
- increase in internal complexity and confusion
- increase in internal conflict due to multiple reporting lines.
- competition or ego clashes
Can someone help me with this