Answer:
d.) all of these characters are important fo an index fossil
Explanation:
Organisms have the characteristics to die and their remains form fossils. A fossil is a preserved remain of a previously living organism. Index fossils are fossils used to tell us more about a particular period. However, before the fossil remains of an organism can be used for this purpose, it must have specific characteristics including the following:
- It must be a unique/distinct species
- It must be geographically abundant
- It must live only a short period of time
Based on these above characteristics of a good index fossil, an organism whose remains must form a good index fossil must possess ALL THE MENTIONED CHARACTERISTICS MENTIONED IN THE OPTIONS.
Answer:
d
Explanation:
Index fossils have to be unique and abundant to be easily identified, abundant means it must be around the world. Index fossils usually live for a short period of time. So D is the correct answer.
list the main advantage of having a mechanical heart
Answer:
help to the patients with severe biventricular failure
Explanation:
The artificial heart is not close to real, of course, but its function saves patients with severe heart failure and those who are not on the list for transplantation.
As there is no heart pocket, there is no danger of infection, and it helps treat people with systemic diseases
A species of fish evolved over thousands of years to have gills that allowed the fish to swim deep in the sea. What’s the effect of this development on deep-water resources? The fish developed the gills because of . Because the fish are now able to swim in deep water, their in shallower water will have less food. Likewise, competition for food among deep-water fish that eat the same types of food will .
Answer:
Likewise, competition for food among deep-water fish that eat the same types of food will .
Explanation:
Natural selection will condemn all deep-sea fish to the same environment that conditions them, those that cannot develop gills will be exposed to extinction, this refers to the theory of the evolution of the fittest by Charles Darwin.
Answer:
A species of fish evolved over thousands of years to have gills that allowed the fish to swim deep in the sea. What’s the effect of this development on deep-water resources?
The fish developed the gills because of
genetic modification
. Because the fish are now able to swim in deep water, their
predators
in shallower water will have less food. Likewise, competition for food among deep-water fish that eat the same types of food will
decrease
.
which subtance is used by plants as a source of food
Answer:
Glucose
Explanation:
Answer: Glucose
Explanation: Plants make food in their leaves. The leaves contain a pigment called chlorophyll, which colors the leaves green. Chlorophyll can make food the plant can use from carbon dioxide, water, nutrients, and energy from sunlight. This process is called photosynthesis.
how fast can great white sharks swim
Answer:
35 mph
I know because I'm a fish
Most enzymes are proteins. Many cells make and use an enzyme called catalase to facilitate the decomposition of hydrogen peroxide (H2O2). The products of the decomposition are hydrogen (H2) and oxygen (O2). Stephanie is investigating the structure and function of catalase, and she is comparing catalase to other proteins. What can Stephanie predict will distinguish the structure of catalase from the structures of the other proteins she is studying? A. many regions made entirely of hydrogen and oxygen B. the chemical properties of the peptide bonds C. the types of amino acids it contains D. the sequence of amino acids it contains
Answer:
The correct answer is - B. the chemical properties of the peptide bonds.
Explanation:
The difference between the structures of catalase from other proteins depends on the chemical properties of the peptide bonds present in between the amino acids which decide the pH and temperature by their disruption. These bonds present between two alpha-amino acids when carboxyl of one amino acid interacts with the amino group of the other to form an amide-type covalent bond.
How many chromosomes are shown in this picture? How many chromatids?
Answer:
There is 8 choromatids
There are 8 chromatids and 16 chromosomes.
Relation between chromosome and chromatids:A chromosome is made up two Identical Sister Chromatids. And each sister chromatids are joined at the centromere
A chromatid is one of two identical halves of a replicated chromosome. Following DNA replication, the chromosome consists of two identical structures called sister chromatids, which are joined at the centromere.Each chromosome consists of 2 sister chromatids.Before replication, one chromosome is composed of one DNA molecule. In replication, the DNA molecule is copied, and the two molecules are known as chromatids.Learn more:
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Which of the following best describes a tissue?
Group of answer choices
A group of organs that all have similar functions.
A group of similar cells that serve the same purpose
A random collection of cells.
A singe cell that has a specific function.
Answer:
I would say b
Explanation:
it would be b because tissues that are similar form one organ but a group of organs is a system so its b.
The best statement that describes a tissue is - A group of similar cells that serve the same purpose.
In multicellular organisms, tissue is a cellular organizational level that is present between similar cells and a complete organ. It is a group of cells that have a similar structure and function.
The space between cells in tissue is filled with a nonliving material, the intercellular matrix that varies from tissue to tissue in amount.Various tissues then undergo organization to form organs. Cells are the most basic part of an organizationtissues make muscles that help in movementThus, "A group of similar cells that serve the same purpose" is best describes tissue.
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It is unethical for a doctor to _____.
release patient information without consent
use genetic testing to diagnose genetic disorders
release patient information with the consent
treat patients with genetic disorders
Answer: release patient information without consent
Explanation:
The information obtained from patient during the process of diagnosis should be kept under confidentiality between the hospital staff or doctor and the patient. The information can be disclosed without patient's consent in two conditions- if the disclosure is necessarily required by law or in case of public interest. Except these two conditions if the information is disclosed without the patient's then the practice will be considered as unethical.
Hope this helps have a wonderful day!
Plz help I don’t know the answer to this!!
how can a long-term environmental change can lead to the development of a new species
Answer:
A long term change can affect how species of right now live and act.
Explanation:
Eventually, that new change would cause an evolution to occur for that species so that they can adapt and be fully prepared for the change that occur so that they can survive.
#teamtrees #WAP (Water And Plant)
On any given day, the weather forecast might say that rain, snow, and sleet are expected. Which of the following statements is describing this area’s climate?
Group of answer choices
A. Last January it snowed for 17 days in a row.
B. Sleet is a combination of rain and snow.
C. The rain turned to sleet and snow later that afternoon.
D. Rain, snow and sleet are common during the month of December.
Answer:
C
Explanation:
Because it makes more sence
Frozen raindrops that hit the earth's surface are known as sleet (Ice Pellets). When sleet first forms, snow will be the precipitation that falls upwards. Thus, option C is correct.
What weather forecast rain, snow, and sleet are expected?Both sleet and freezing rain develop using the same fundamental mechanism: liquid droplets in a layer of warm air above the surface descend into a layer of freezing air close to the ground.
When snowflakes fall through a thin layer of warm air, they only partially melt, resulting in sleet.
These slushy drops then refreeze as they fall through a thick layer of icy air above the surface, and when they finally make it to the ground, they do so as frozen raindrops that bounce as they hit the ground.
When rain falls through a chilly layer and directly on the ground, it freezes on contact and forms a layer of ice. This is known as freezing rain.
Therefore, Snow that falls from a cloud and melts as it passes through an upper layer before falling back through a lower layer below freezing is known as sleet.
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Why does salt affect water potential? (Osmosis related)
Answer:
Explanation: Las sales reducen el potencial osmótico del agua, aumentando la necesidad de energía que requieren las plantas para extraer la humedad del suelo, volviéndolas más susceptibles al marchitamiento.
Which career combines DNA technology and forensics? pharmaceuticals paternity testing environmental studies genetics
Answer:
B. Paternity
Explanation:
Edge 2020
The career that combines DNA technology and forensics is paternity testing. The correct option is B.
What is paternity testing?DNA testing examines an individual's DNA banding patterns to determine the identity or mutations of a specific gene.
Paternity testing is a type of DNA testing that is used to determine paternity and the true nature of a relationship.
The lab compares tissue samples from the mother, the child, and the man to determine what unique characteristics known as genetic markers the child shares with the mother and the man who may be the father.
The chromosomes that determine the gender of the baby (X and Y chromosomes). The mother's egg typically contributes an X chromosome, while the father's sperm contributes either an X or a Y chromosome.
These tests are extremely accurate in determining whether a man is the biological father of a child.
Thus, the correct option is B.
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2
Which procedure will determine if water temperature affects the weathering of sedimentary rocks?
A. Test 3 identical sedimentary rocks, 1 each in 3 different water temperatures.
B. Test 3 identical sedimentary rocks in 1 water temperature.
C. Test 1 crushed sedimentary rock and 1 whole sedimentary rock in water.
D. Test 3 identical sedimentary rocks, 1 each in acid, 1 in a base, and 1 in water.
Answer:
The correct option is A
Explanation:
To determine if water temperature has an effect on weathering of sedimentary rocks, different number (perhaps three) of identical sedimentary rocks should be obtained and then individually placed in different water temperatures (with at least one of the "water volumes" used for each having a temperature close to the room temperature so as to be used as the control).
Thus, each of the identical sedimentary rock can be broken into three and placed individually; as in one part of the rock in 20 °C of water (control), another part of the rock in 40 °C and another in 60 °C of water.
This above procedure should be repeated for the remaining two other identical sedimentary rock to confirm if there is any effect.
What is density? student definition
Answer:
Density is the degree of consistency
Explanation:
volume x mass = density
Answer:
Density can be defined as the mass per unit volume of a substance.
Explanation:
Density is simply the mass per unit volume of a substance. When you are finding the density of the substance;
You first need to know the volume of a substance and the mass of that substance.
The S.I unit of density is;
Kg/m³ or Kgm³( Kilogram per cubic metre )
What type of organic compound is used to store and release large amounts of energy?
Answer:
A carbohydrate is an organic compound such as sugar or starch, and is used to store energy. Like most organic compounds, carbohydrates are built of small, repeating units that form bonds with each other to make a larger molecule. In the case of carbohydrates, the small repeating units are called monosaccharides.
Answer:
Adenosine triphosphate (ATP) is also an organic compound that storages (provides) energy to drive many processes in living cells.
Structure and Properties of Matter:Question 9
In which two states of matter can a substance take the shape of its
container?
Select one:
O
Liquid and gas
O
Gas and crystal
O
Sod and gas
O
Solid and liquid
Answer:
Liquid and gas
Explanation:
Liquid and gases can take the shape of their contains.
Liquids have not fixed shape and they readily flow.
Gases are random and they occupy the contains they fill .
Volume is the amount of space occupied by a substance. Gases can take up any amount of space in a container. Liquids can readily flow and take up spaces too. Solids are fixed and have a definite volume.A red blood cell would burst if placed in a(n) ___ solution with no cell wall.
A. Isotonic
B. Hypertonic
C. Hypotonic
Please help! 10 points
Answer:B
Explanation:
Help ASAP!! :) it would be very much appreciated
A main function of the skeletal system is to
A. protect internal organs.
B. allow your body to move.
C. store and produce materials.
D. all of the above.
Answer:
D
Explanation:
the skeleton does all of the above
Through what protein can water cross the cell membrane
Answer:
(b) Carrier proteins are more selective, often only allowing one particular type of molecule to cross. A specialized example of facilitated transport is water moving across the cell membrane of all cells, through protein channels known as aquaporins.
Explanation:
Answer:
aquaporins(b) Carrier proteins are more selective, often only allowing one particular type of molecule to cross. A specialized example of facilitated transport is water moving across the cell membrane of all cells, through protein channels known as aquaporins.What effect does increased carbon dioxide
have on global temperatures? (two complete
sentences minimum)
Answer:
Carbon dioxide increases temperatures, extending the growing season and increasing humidity. Both factors have led to some additional plant growth. However, warmer temperatures also stress plants. With a longer, warmer growing season, plants need more water to survive.
Explanation:
where did tape worm lives
PLEASE ANSWER THIS QUICK QUESTION!!! ASAP! WORTH A LOT OF POINTS
What do all tide pool creatures have in common?
Or: What are the main features that all tide pool creatures have in common?
Explanation:
While these small basins at the ocean's edge typically range from mere inches to a few feet deep and a few feet across, they are packed with sturdy sea life such as snails, barnacles, mussels, anemones, urchins, sea stars, crustaceans, seaweed, and small fish.
Which state of matter is the least compressible? (1 point)
Solid
Liquid
Gas
Plasma
Answer:
solid matter is the least compressible.
C6H12O6 + 602 --> 6CO2 + 6H20 + ATP
In the reaction above, CoH12O6 and 602 are called the
Answer:
Reactants
Explanation:
In the reaction:
C₆H₁₂O₆ + 6O₂ → 6CO₂ + 6H₂O + ATP
The reaction is a metabolic reaction that produces energy from the breakdown of glucose when it reacts with oxygen.
In the reaction C₆H₁₂O₆ and O₂ are the reactants.
These are the raw materials need for the reaction to proceed in the right direction successfully.
On the right hand side, we have the products.
List what can possibly happen to a wave of light as it encounters objects. HURRY I NEED HELP!!!
Pretty sure its Reflection, Absorbtion, and Transmission.
Write about an experience, either real or imaginary using these words chemical energy, electric energy, kinetic energy, mechanical energy, nuclear energy, potential energy, radiant energy, seismic energy, sound energy, and thermal energy
Answer:
I stopped to think for a moment, and realized chemical energy is found in food. Then, I thought about how the other day when I saw lightning, that is an example of electric energy. Then I thought about how when throw a ball, that is a form of kinetic energy. The other day, when I was hammering a nail into a piece of wood, that was a form of mechanical energy. An example of nuclear energy would be the nuclear power plant by our house. Before my book fell off my table, this is an example of potential energy. The energy from the sun is an example of radiant energy. Volcanoes and earthquakes around the world are an example of seismic energy. Sound energy would be the balloon that I popped the other day. Thermal energy would be the heat I feel from the heater.
Name the site of production and release of oestrogen
Answer:
The pituitary gland produces FSH which causes the development of a follicle in the ovary. As the egg develops inside the follicle, the follicle produces the hormone oestrogen. The oestrogen causes growth and repair of the lining of the uterus wall. Oestrogen inhibits FSH.
Explanation:
By which process does yeast produce the carbon dioxide responsible for bread rising?
A. Photosynthesis
B. glycolysis
C. cellular respiration
D. dehydration synthesis
Answer:
C. cellular respiration
Explanation:
Yeast produces the carbon dioxide responsible for bread rising by CELLULAR RESPIRATION
WHICH ORGANISM IS CALLED YEAST?
Yeast is an eukaryotic unicellular organism that belongs to the kingdom fungi. Cellular respiration is the metabolic process by which living organisms obtain energy in form of ATP by breaking down organic and inorganic substances.HOW DOES YEAST RESPIRE?
Yeast respires anaerobically via a kind of cellular respiration called FERMENTATION. In the process of fermentation, glucose is broken down to produce ethanol and carbon dioxide (CO2). In bread making, yeast is used to make dough rise. The carbon dioxide (CO2) produced during cellular respiration is what is responsible for the rising of bread.Learn more at: https://brainly.com/question/3126347
And causes either mechanical or chemical weathering? Brainliest and 13 points to the right answer!