What kind of bond does water have
A. positive
B. negative
C. Covalent
D. Non-polar
Answer:
C. Covalent
I hope this helps!
4. A scientist is observing living Cells in a Petri Dish under a Compound Light Microscope and recorded their
observations. Which of these observations provides evidence to support one of three components of "The Cell
Theory?" (SC.6.L.14.2)
a. Each Cell is spherical in shape.
b. Cells appear pink in color under the Microscope.
c. The sample of Cells require a nutrient broth as a food source.
d. Several Cells are in the process of dividing into two new Cells.
Answer:
D. Several cells are in the process of dividing into two new cells
Explanation:
The universal cell theory which was proposed in 1838 and contributed by three scientists namely: Theodor Schwann, Rudolf Virchow, and Mathias Schleiden, consists of three components namely:
1) Cell is the basic and functional unit of life
2) All living organisms are made up of one or more cells.
3) All existing cells arise from pre-existing cells.
Hence, in this question involving a scientist who is observing living Cells in a Petri Dish under a Compound Light Microscope, the observation that "Several cells are in the process of dividing into two new cells" provides evidence to support one of the three components of the cell theory ( all living cells arise from preexisting cells).
_________are organisms capable of transforming one
form of energy (light energy or chemical energy) into the food
they need to do work.
Answer:
Producers/Autotrophs
Explanation:
Using carbon dioxide and water, plants convert carbon dioxide into glucose, and water into oxygen with the help of light energy to provide food for themselves. In a process called photosynthesis.
The organism that is capable of transferring one form of energy, which is light energy, to chemical energy, which is food, is the photoautotroph. These are the producers in the ecosystem, such as the plants.
What is the role of the photoautotroph?Every ecosystem contains some form of photoautotroph, such as land plants present in the terrestrial ecosystem, phytoplankton present in the aquatic ecosystem, etc. The photoautotrophs have special cell organelles, such as the chloroplasts, that carry out the conversion process of the light energy into chemical energy by the different complexes present in the thylakoid. ATP is formed during the photosynthesis process, and the carbon level in the atmosphere decreases as the plant uses it for this process.
Hence, the organism that is capable of transferring one form of energy, which is light energy, to chemical energy, which is food, is the photoautotroph. These are the producers in the ecosystem.
Learn more about the photoautotroph here.
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plewaseee helppppppppppp For sediment to be transformed into rock, which set of processes must take place?
crystallization and solidification
weathering and erosion
compaction and cementation
melting and spreading
Answer:
I am pretty sure it is B, weathering and erosion. Hope this helps!
Answer:
I’m not fully sure but I think it’s c, crystallization & solidification
hope this helps
Which of the following occurs when the tilt of the axis is not toward or away from the sun? A Winter Solstice B Spring Equinox c Summer Solstice d both spring and fall equinox
Answer:
AWinter Solits
Explanation:
Answer:
ROOF ROOF
Explanation:
brainliest.
What are viruses? How do you bacteria and viruses help human health?
Answer: I don’t believe viruses help health because they kill host cells and damage the host organism. However, after you survive a virus your body builds up a defense and it is highly unlikely you will catch the same virus.
Which of the following describe How Chowking could lead to death? The
It will block your air passage like nose and mouth
Brown eye color is a dominant trait and blue eye color is a recessive trait
What typically happens when someone inherits one allele for brown eyes and one for blue eyes?
O The person has brown eyes, and brown eye color remains a dominant trait
O The person has blue eyes, but brown eye color remains a dominant tralt
O The person has brown eyes, but blue eye color becomes a dominant trait
O The person has blue eyes, and blue eye color becomes a dominant trait
Answer:
The answer is the first choice, the person has brown eyes , and the color remains the dominant trait.
Explanation:
When a person inherits a recessive trait and a dominant trait, their (in this case) eye color will always be brown. The only time a recessive trait will be inherited (having blue eyes) occurs when the offspring inherits two recessive traits.
A. The person has brown eyes, and brown eye color remains a dominant trait this typically happens when someone inherits one allele for brown eyes and one for blue eyes.
What's an allele simple definition?An allele is one of two or more variations of DNA collection (an unmarried base or a phase of bases) at a given genomic area. A person inherits two alleles, one from every parent, for any given genomic vicinity where such a version exists.
What are alleles and examples?A dominant allele will override the tendencies of a recessive allele in a heterozygous pairing. In a few trends, however, alleles can be codominant—i.e., neither acts as dominant or recessive. An instance is the human ABO blood group machine; humans with type AB blood have one allele for A and one for B.
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A model of an atom includes red marbles for electrons, green marbles for protons, and blue marbles for neutrons. All marbles have a radius of 2 cm. How could the model be changed to represent more properties of an atom?
Answer: Change the electron radius.
Explanation:
This would be a more accurate representation because electrons are the smallest particles.
Using a microscope, Quinlin notices a small green organelle inside a cell. Which of the following is most likely to occur first in this organelle?
Answer:The light dependent reactions absorb sunlight and transfer the eneegy to electrons
Answer:
^ is correct
Explanation:
Which part of an animal or plant cell contains the cell's genetic information?
ribosome
mitochondria
cytoplasm
nucleus.
Answer:
nucleus
Explanation:
ways of conserving soil fertility
Deforestation effects soil quality and desertification will also effect the soils fertility. hope this helps :)
Answer:
ways we can conserve soil fertility include crop rotation, cover crops, conservation tillage and planted windbreaks, affect both erosion and fertility.
Explanation:
Why do scientists use a single system of units?
A. Scientists use a single system to prevent miscommunication.
B. Scientists have their favorite forms of units.
C. One scientists might have a better measurement than the other.
D. Scientists don't make enough measurements to need more then one system.
Answer:
The answer is A
Explanation: When it comes to using different types of units rather it is SI or NM they want to make sure they got the measurements right they don't want any mistakes when it comes to creating an experiment, data and report that can lead to a lot of miscommunication with other professional scientists. The other answers provided on here didn't really make sense so I believe the answer to this is A
What items are in the niche of a bear?
Answer:
Black bears feeding niche is quite varied. A black bear eats all sorts of plants and plant material, nuts, all sorts of berries and meat. They have long sharp claws which help them rake the soil to find food and roots. Almost eighty percent of their diet consist of plant material while the rest is animal protein.
Explanation:
A _ _ _ _ _ _ _ _ _ _ _ _ _ is a small particle consisting of RNA or DNA enclosed in a protein coat.
anyone knows the answer? :(
Answer:
Virus
Explanation:
Viruses are made up of nucleic acids (DNA or RNA) surrounded by a protein coat. They are smaller than the smallest bacterium. Viruses consist of nucleic acid (genetic material) surrounded by a capsid (protein coat).
correct answer gets brainly
Answer:
where's the work?
Explanation:
Question:
correct answer gets brainly
Explanation:
Well, I'm not sure what it would be.
Why does DNA need to be extracted from a cell before it can be analyzed?
Answer:
to study the genetic causes of disease and for the development of diagnostics and drugs.
Explanation:
It is important to extract DNA from a cell in order to study the genetic causes of disease and for the development of diagnostic and drugs. Scientists will use a cell culture system, which is cells from an organism that have either been made to continuously proliferate (grow) or are cancerous in nature (from cancer).
These cells allow us to continue working on experiments where we can change the conditions to determine various cell functions.
The kind of bond that lipids won’t form with water is a _ _ _ _ _ _ _ _ bond.
What goes in the blank spot?
Brainliest!
what would happen is there was a change in the DNA ?
Answer: B) the protein would also change
Cells which form pathways to and from the brain are _______.
epithelial
neurons
connective
1. Analyze the picture below. The answer the questions that follow.
2mm
• What is the diameter of the field of view in millimeters (mm)?
What is the diameter of the field of view in micrometers (um)?
• How many cells are lined up across the field of view?
Calculate the length of just one cell in micrometers by using the formula below. Show work
in the box below. Circle your answer. Make sure you include units.
Diameter of field of view
Number of cells across
Answer:
press dat crown for meh
Explanation:
_____ is a type of ecological
succession that occurs on bare
ground without soil.
A. Secondary succession
B. Primary succession
C. Tertiary succession
Answer:
Your answer is: B) Primary Succession
Explanation:
Hope this helped : )
List the 2 Sources of Energy for Living Organisms.
Answer:
The Sun is a source of energy for organisms and the ecosystems of which they are a part. Producers, such as plants use energy from sunlight to make food energy by combining carbon dioxide and water to form organic matter.
.What type of structure do
these bones represent, and what is their significance in terms of evolutionary relationships
100 g of a mystery metal at 250 C is added to 400 mL of water at 15 C. The final temperature of the system is 15.9 C. What is the heat capacity
of the mystery metal?
(PLEASE HELP need the answer by 10/21/20
11:00pm)
Answer:
c = 0.064 j/g.°C
Explanation:
Given data:
Mass of metal = 100 g
Initial temperature of metal = 250°C
Volume of water = 400 mL
Initial temperature of water = 15°C
Final temperature = 15.9°C
Heat capacity of metal = ?
Solution:
First of all we will calculate the heat lost by metal into water.
ΔT= 15.9°C - 15°C
ΔT= 0.9 °C
q = mcΔT
q = 400 g× 4.184 j/g.°C × 0.9 °C
q = 1506.24 j
Specific heat capacity of meta;
ΔT = 15.9°C - 250°C
ΔT = -234.1 °C
q = mcΔT
-1506.24 j = 100 g× c × -234.1 °C
(negative sign with q value indicate heat is lost by metal)
-1506.24 j = -23410 g.°C × c
c = -1506.24 j /-23410 g.°C
c = 0.064 j/g.°C
How far does an animal have to travel to obtain the abiotic factor water?
Answer:
Three fourth of the total earth is covered with water, 97 percent of which is there in sea's as saline water, the other 2 percent is there in the form of glaciers and the left out 1 percent is there as ground water.
Water is presence is abundance but it depends upon the geographical location where the animal is looking for water. There will be scarcity of water in the deserts because there is less rainfall over there, so it depends on the geographical location.
________ is the process of breaking down carbohydrates to yield
energy *
A Photosynthesis
B Cellular Respiration
C Producer
D Biotic Factor
Which process must the cell undergo to have identical cells at the end of cell division?
The answer is mitosis
which of the following represents evidence that could be used to support the claims about this product?
Answer:
Rest of answer?
Explanation:
What are the following? because I dont think we can see it
For each missing word or phrase, circle the choice that correctly completes the
sentence
The Devil's Hole water system is part of a large underground aquifer in Death
Valley National Park. After the last lce Age, around 10,000 years ago, as the
water dried up and the land tumed to desert, separate pools of water formed.
(Biomes / Species / Populations) of pupfish eventually became isolated in a
few of these water holes and springs and then evolved different (adaptive /
disruptive / stabilizing) traits to become distinct species over time. This kind of
(polygenic drift / genetic drift / environmental effect) likely occurred because
each water pool was inhabited by a few surviving individuals of the original larger
population. A change in (habitat conditions /
genetic equilibrium / allele frequency following a large reduction in
population size is called a (bottleneck effect/polvaenetic effect/
environmental effect)
Answer:
Biomes Adaptive Polygenic Drift Genetic Equilibrium Environmental Effect
Explanation:
Lit