The physical and chemical properties of elements change in predictable ways from one end of a period to another. Which of the following is true based on this feature of periodic table (p 312)?
Group of answer choices:
A : Potassium has more protons than Calcium
B : An atom of gold is smaller (atomic size) than an atom of platinum
C:The noble gases react with everything
D: Elements in Group 8 are more reactive than elements in Group 7
PLEASE AANYONE THIS IS MY LAST QUESTION ILL MARK BRAINLEST PLEASE!
Answer:
Are those your breast?
Explanation:
why this site
Deer need food and water to survive. What are food and water for the deer population?
carrying capacity
limiting factors
population growth
scarce resources
Deer need food and water to survive, and these resources are essential for the deer population to thrive.
Where water can be found?Water can be found in streams, lakes, and ponds, and food for deer populations can include grass, leaves, twigs, fruits, and nuts. Carrying capacity, limiting variables, population increase, and scarce resources can all have an impact on the availability of these resources.
The greatest number of deer that a particular ecosystem can support is known as carrying capacity. If the deer population surpasses the carrying capacity, resources will become scarce and the population will begin to drop.
This is determined by the amount of food and water available in the area. Disease, predation, and human hunting are limiting variables that can also have an impact on the deer population's size and the amount of food and water they have access to.
Population growth is also an important factor, as when the population grows too quickly, the resources may become scarce and the deer will struggle to survive. Finally, scarce resources can also affect the deer population, as when resources are not readily available, the deer will have to compete for food and water, leading to a decrease in their population.
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what are the similarities between cats and lion
Answer: eating D I C K
Explanation:
they lick it
A scientist claims that he has protected animal test subjects from a newly mutated virus using an experimental vaccine.The experimental vaccine was injected into five animal test subjects. The scientist also injected a placebo vaccine into five other animal test subjects.One month later, all of the test subjects were exposed to the mutated virus. The subjects that received the vaccination showed no sign of the disease and blood tests confirmed the presence of antibodies against the disease, but the subjects given the placebo developed symptoms of this condition.Why did one group have a placebo injected before being exposed to the virus?A) They were part of the experimental groupB) They would be protected from the diseaseC) They would be exposed to a weaker form of the virusD) They were part of the control group
Answer:
The correct answer is option D. they were part of the control group.
Explanation:
A control group is a group of subjects different from the other test subject as they did not get the independent variable's effect on them and separated from the rest of the experiment. This group of subjects is used to rule out any other explanation of the effect of the independent variable.
In this experiment, subjects that received a placebo injection are the control group as they did not expose to the mutated virus and there are the presence of antibodies in the blood.
What does the letter U represent?
Ribose sugar
Nitrogen base
Phosphate group
Deoxyribose sugar
Answer:
Nitrogen Base
Explanation:
the square is where the bases connect to get different patterns inside your DNA
LOVE LETTER: You are writing a love letter to water. Using the meanings of at least
6 properties of water (cohesion, adhesion, density, pH, moderates temperature, hydrogen
bonding, polarity, solubility), to explain to water why you love it so much. Ex: "Your
neutral pH is so much more attractive than orange juice's sour & acidic pH"
Answer:
Dear water,
I love you, You are highly special to me as you are attracted towards you own molecules(cohesion) and others as well(adhesion). Your density is so compatible that its used as standard for almost all reactions. You are neither acidic nor basic and you hold a PH of 7. You can also be used as temperature moderators as you have the highest specific heat capacity. You hold special bonds with selected molecules and form hydrogen bonding, Polarity of you molecules makes you bend just like ammonia and your solubility is exceptional as you are considered a good solvent these qualities of your makes me love you even more.
How are organelles in a prokaryotic cell different from those in a eukaryotic cell?
PLZ HELP WILL MARK BRAINLIEST
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What do you think would happen if a trial of the experiment was done with frozen liver and potato?
They would react the same as the control.
They would react the same as the heated samples.
They would react the same as with the vinegar and hydrogen peroxide at room temperature.
They would react the same as with just the hydrogen peroxide.
Explanation:
They would react the same as with the vinegar and hydrogen peroxide at room temperature. They would react the same as with just the hydrogen peroxide.
7. Pick two of Earth's spheres (biosphere, atmosphere, geosphere, hydrosphere), and draw a model showing how these two systems interact. Your model should show components of these systems, at least one way these components interact, and inputs and outputs that move from one system to another.
Answer:
alright, the answer is biosphere
Explanation:
The earth sphere that is the biosphere is a product of the interaction of atmosphere, lithosphere, and hydrosphere. Together they are called as the geosphere.
All these spheres interact with one another and their interaction leads to life on earth. The atmosphere consists of the most essential gases known to maintain temperature and sustain life on earth such as oxygen. The other component knows as the hydrosphere has water which when interacts with air through the processes of evaporation, condensation, and precipitation all driven by the solar mechanisms.Thus the air and water cycle interaction leads to the input and output of energy in the ecosystem.
brainly.com/question/19566421.
What substances are combined with sunlight in the process of photosynthesis?
A. carbon dioxide and water
B. water and simple sugar
C. carbon dioxide and oxygen
D. oxygen and simple sugar
Answer:
A. carbon dioxide and water
In pedigree B, how can unaffected parents have an affected child?
Answer:
The unaffected mother, who is marrying in, does not carry an allele for the disease; so the affected child inherits an allele only from the affected father. No child could be affected by a single autosomal recessive allele, or X-linked recessive allele, so the trait is dominant
Answer:
The childs mother could be a carrier without knowing it which would create the couple to have a child thats affected.
Explanation:
Help with these two please
describe the effects that enzymes can have on substrates
Answer:
Enzymes bind with chemical reactants called substrates there may be one or more substrates for each type of enzyme I beleivedepending on the particular chemical reaction. In some reactions, a single-reactant substrate is broken down into multiple products the enzyme's active site binds to the substrate.
Explanation:
Hope this helps.
Answer:
When an enzyme binds its substrate, it forms an enzyme-substrate complex. This complex lowers the activation energy of the reaction and promotes its rapid progression by providing certain ions or chemical groups that actually form covalent bonds with molecules as a necessary step of the reaction process
Explanation:
hope this helps
During weeks 17-20, quickening occurs, which is when the
A. fetus' sense of hearing is developing at a rapid pace
B. mother can hear the fetus' heartbeat with headphones
C. fetus' heart rate increases to 150 beats per minute
D. mother is able to feel the fetus move inside her womb
A: D. mother is able to feel the fetus move inside her womb
E: ED20 CA-Psychology
During weeks 17-20, quickening occurs, mother is able to feel the fetus move inside her womb. The correct option is D.
What is gestation period?It is measured in weeks, beginning with the first day of the woman's last menstrual cycle and ending with the current date.
A normal pregnancy can last between 38 and 42 weeks. Premature babies would be those born prior to actually 37 weeks. Postmature infants are those born after 42 weeks.
It is common in mammals, but it also occurs in some non-mammals. Mammals can have one or more gestations at the same time during pregnancy, as in a multiple birth.
Pregnancy is calculated from the first day of the woman's last period, rather than the date of conception, which usually occurs two weeks later.
Quickening occurs during weeks 17-20, and the mother can feel the fetus move inside her womb.
Thus, the correct option is D.
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What are the greatest threats to biodiversity?
WILL GIVE BRAINLIEST!!!!!!!
Glucose, a large sugar molecule, is passively transported into cells by _?_ using carrier proteins.
osmosis
facilitated diffusion
endocytosis
simple diffusion
Answer:
FACILITATED DIFFUSION
Explanation:
trust me
DNA strands run antiparallel which means?
Answer:
hope it helps...
Explanation:
In biochemistry, two biopolymers are antiparallel if they run parallel to each other but with opposite directionality (alignments). An example is the two complementary strands of a DNA double helix, which run in opposite directions alongside each other.
What is acid rain and how is it a problem to oceans, rivers, lakes, ponds, etc.
Answer:
Any form of precipitation like rain, snow, fog, hail, and even dust that has acidic components. When the acidity of a lake increases, the water becomes clearer and the all the animals decrease.
Explanation:
brain liest for all trying to get more for u guys!! ty:D
Answer
1. c
2. e
3. a
4. b
5. d
You're supposed to do the rest in your own words, and brainly only lets us answer a few questions at a time.
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Which compound is a metabolic intermediate of the light-independent reactions in photosynthesis?
ATP
PGA
RuBP
NADPH
Answer:
PGA not sure But Ithink that the correct answer
Explanation:
Guys pls help me!
Students investigate how onion cells react to salt (NaCl) solutions of different concentrations. They observe onion cells in three salt solutions under a microscope
The image of an onion cell in a 3% salt solution is shown.
Onion Cell in 3% Salt Solution
Answer:
I'm not sure but maybe for the first it's less than 3% and for the second it's equal to 3%?
Explanation:
when a racher puts cattle in a pasture, what happens to the amount of grass in it?
Answer: Cows put in a pasture of fresh grass will eat it down too a point it would regrow fast.. Unless the pasture is not large enough for the number of cattle. Then they will eat it into the ground and kill it.
Explanation:
Select the correct answer from each drop-down menu. Gravity affects the _____ of an object but not its _____
DNA and RNA are both important nucleic acids. They have similarities and differences structurally.
Use the Venn diagram to compare the two nucleic acids. Drag each characteristic to the correct location.
ITEM BANK Move to Bottom
Deoxyribose sugar
Double stranded
Ribose sugar
Sugar, phosphate, nitrogen base
Throughout the cell
DNA
Both
RNA
Answer:
search this up
Explanation:
then add quiz let at the end :) hope this
Make a prediction of this: A group of scientists recently proposed the idea that beets should replace salt for melting winter ice. The scientists pointed out that because beets grow underground, they continue to grow in freezing conditions. Thus, they hypothesized, an extract of beet roots could melt ice on roads in winter. To test this hypothesis, the scientists froze equal volumes of water on two separate plates. They spread an extract of beet roots on one plate of ice and sprinkled an equal amount of salt over the other plate. After keeping both plates at 0°C (the temperature at which water freezes) for a period of time, they measured the amount of melted water on each plate. Their results showed that the plate treated with beet extract contained more liquid water than the plate treated with salt.
Answer:
extract of beet roots could be used as antifreeze for water systems
Explanation:
In science, a prediction can be defined as a plausible conjecture that is subsequently proved (or rejected) using the scientific method. In other words, a prediction is the expected result obtained if the hypothesis is true. Scientists make predictions based on falsifiable hypotheses which can be tested through experimental and/or observational procedures. In this case, it could be predicted that the extract of beet roots could be used as anti-freeze for water systems in cold climates.
Which event is an example of vaporization?
A. A spilled drop of rubbing a slowly disappears.
B. People see their breath on alcohol cold winter day.
C. Dew forms on the leaves of a tree.
D. Fog forms in a valley.
Answer:
A. A spilled drop of rubbing a slowly disappears.
Explanation:
How does biology differ from other scientific fields like astronomy or geology?
Explanation:
Biology is the study of human, animal, and plant life. Astronomy is the study of space. Geology is the study of rocks.
Answer:
Biology is th study of living things while astronomy and geology don’t study living things.
Which of these describes an amphiarthrosis joint?
A joint in the elbow that permits movement in one plane.
A joint in the ankle that allows rotational movement.
A joint at the base of the skull that permits flexion and extension of the neck.
A joint in the spine that is slightly movable and separated by cartilage.
Answer:
D. A joint in the spine that is slightly movable and separated by cartilage.
Explanation:
got it from edge2020
Answer: A joint in the spine that is slightly movable and separated by cartilage.
Explanation:
8. Passive transport needs ATP.
True
False
Answer:
The answer is false
Explanation:
A lot of your personality comes from ______________________ rather than your DNA.
Answer:
Inheritance
Explanation:
Many believe that personality traits can come from how you are treated when you are a child while that can play a part in a personality trait that's not the full truth. Personality traits are inherited from your parents so if your father is stubborn but not your mother there's a 50% chance that the child may be stubborn like his or her father.
Hope this helps.