What information about the organisms best helps the scientists to determine the evolutionary relationships among them?
Anatomical features
Reproductive strategies
DNA Sequences
Habitat types
Answer:
its c: DNA Sequences
Explanation:
I got it right
What are 3 ways in which matter changes over time?
Please help me i have a science paper that has this question
solid , maltings , freezing
The total variety of all living things on Earth is described as
А an ecosystem
B biodiversity
с a population
D competition
Answer:
biodiversity
Explanation:
An ecosystem is all the things in an biome but not all Earth
biodiversity is the variety of all living things
a population is the number of a species in an area
competition is when animals compete for resources
P.S. Please mark Brainliest if correct?
Which of the following statements about viruses is true?
A: A virus belongs to the Archaea Domain.
B: A virus is a single-celled organism.
C: A virus has a cell membrane made of proteins.
D: A virus can evolve.
Answer:
D: A virus can evolve.
Explanation:
Viruses are not organisms so that rules out all other options.
why man reproduce??
Answer:
to pass off their offspring
Explanation:
i'm not sure about what your asking
Answer:
To pass of there offspringDraw a line representing the rise and a line Representing the run of the line. state the slope of the line in simplest form
What are the biological implications of the structure of the plasma membrane (how do your results about the fluid mosaic and findings relate to life and death in the ‘real’ world? Where could the materials you worked with be found affecting the real world?)
Answer:
Structure of Plasma Membranes
The primary function of the plasma membrane is to protect the cell from its surroundings. Composed of a phospholipid bilayer with embedded proteins, the plasma membrane is selectively permeable to ions and organic molecules and regulates the movement of substances in and out of cells.
Explanation:
Help me please really quick
Answer:
D. electromagnetic energy
Answer:
C
Explanation:
mixed together they make helium which would be chemical
Help with this plz
Thanks. :)
Why is it important to know the average mutation rate when using DNA comparisons to determine
how long ago lineages split?
Answer:
mutation rates can be used to design molecular clocks in order to estimate divergence times among species
Explanation:
In evolutionary biology, the substitution rates (also known as mutation rates) are used for the development of 'molecular clocks' which allow estimating the divergence times among species or among taxonomic groups. Molecular clocks can be designed by estimating the divergence rate of nucleotide sequences (either DNA or RNA) and amino acid (protein) sequences. These substitution rates can also be used to track how quickly viruses evolve (for example, in a pandemic situation).
Plants draw water out of the ground and release water vapor into the atmosphere.
What is this process known as?
Precipitation
Evaporation
Transpiration
Condensation
Answer:
D: Condensation
Explanation:
What is the process called when two glucose molecules bond together to form a
disaccharide and why is it important.
Answer:
Dehydration reaction (a condensation reaction)disaccharide will provide energy for chemical reactions in the body to take place.
Explanation:
The Condensation Reaction is an organic reaction in which two molecules combine to give a single product accompanied by the formation of a molecule of water H2O. Disaccharides are produced when two monosaccharides are chemically combined. The bond called O-glycosidic, is the bond by which monosaccharides join to form disaccharides or polysaccharides. In this type of bond, an OH group of an anomeric carbon of a monosaccharide reacts with an OH group of another monosaccharide, releasing a water molecule.The main function of disaccharides is to provide energy to the cells of the human body, or glycogen. This is achieved through enzymes that act in the synthesis of the disaccharide, extracting glucose. Among the main and best known enzymes that act in this process are insulin for sucrose, lactase for lactose, and trehalase for trehalose.
Which factor is needed for both thunderstorms and hurricanes to form?
Answer:
C. rising moist air
Explanation:
for the storm to start/process it needs the moist air in order for both hurricanes and thunderstorms to happen, because the rotation with the moistness creates the storms.
Hope this helps
Answer:
rising, moist air
Explanation:
because it is i got it right on my test
Yall Im struggling, if u cant read it, the question is “why does a mountain climber need an oxygen supply at very high altitudes, even tho the air still contains 21% oxygen?
Answer: Because it is harder to draw breath in. And the cold
Explanation: At higher altitudes, it becomes more dangerous, and you can develop altitude-related illnesses such as HAPE and HACE. I read a book called Into Thin Air, and in the book the author goes into detail on the details/complications of climbing Mt.Everest and oxygen needs. Mountain climbers use canisters of oxygen called Supplemental Oxygen.
how are indicator species used to assess pollution levels in the environment?
Answer:
By monitoring changes in the population of a specific indicator species, scientists may draw conclusions about changes in a specific pollutant's levels. In addition, this method of pollution measurement demonstrates the impact of pollution on vulnerable species.
Explanation:
There is balance between Apoptosis and Mitosis. What is the
characteristic of life that would involve maintaining this balance?
Metabolism
Respond to Stimuli
Homeostasis
Universal Genetic Code
Answer:
Homeostasis
Explanation:
What is found between stars that looks like smoke?
Answer:
gases of nitrogen and many more
Which of these provides the best evidence that an environmental change has occurred?
Answer:
c
Explanation:
Marine fossils as their name say are should usually be in the ocean. not in a freshwater lake
Hope this helps
3. What might happen to the ecosystem if this population were removed?
Answer:
More predators kill more prey, which, along with food scarcity, decreases the population.
Explanation:
Answer: ''Population Explosions The most obvious result of the removal of the top predators in an ecosystem is a population explosion in the prey species. ''
Explanation:
10. Why are algae NOT considered plants?
A. They are not green.
B. They cannot make their own energy.
C. They live in water.
D. They do not have stems, roots, and leaves.
Answer:
D. they do not have stems, roots and leaves
Algae are not considered as plants as they do not have roots, stems, and leaves.
What are algae?They are a group of predominantly photosynthetic, aquatic, and nucleus containing organisms, which are devoid of the following things:
stemstrue rootsleaves andother unique multicellular reproductive compositions of plantsAlgae comprises chloroplasts and generate food by the process of photosynthesis. However, they are not considered as plants, as they are devoid of several other compositions of true plants like roots, leaves, or stems.
Thus, the correct answer is option D.
Find out more information about algae here:
https://brainly.com/question/979323
List the four steps of mitosis in order. Describe what is happening during each phase.
Answer:
The four stages of mitosis are known as prophase, metaphase, anaphase, telophase. Additionally, we'll mention three other intermediary stages (interphase, prometaphase, and cytokinesis) that play a role in mitosis. During the four phases of mitosis, nuclear division occurs in order for one cell to split into two.
Explanation:
Briefly describe the impacts of climate change on ecosystem
.
Answer:
can alter where species live, how they interact, and the timing of biological events, which could fundamentally transform current ecosystems and food webs. Climate change can overwhelm the capacity of ecosystems to mitigate extreme events and disturbance, such as wildfires, floods, and drought.
Explanation:
Describe a grassland ecosystem briefly.
A grassland is a biome, an area of land that mostly has grasses. There are wild grasses, and there may be some trees. Several parts of the world have grasslands. Grasslands are found in Africa, North America, Central Asia, South America, and near the coasts of Australia.
why do you think using a person's own cell to make a new organ or tissue for them will increase the chance that their body will accept the transplant?
Answer:
In my personal opinion, I think this is possible because your body already knows the cell. It is already familiar with it.
Explanation:
Rearrange the steps of a tsunami formation in the correct order
1. two tectonic plates slide past each other underwater, causing a large movement of water
2. large ocean waves form
3. large ocean waves move in all directions away from the shifting plates
4. large ocean waves slow down and increase in height as they reach the coast
Answer:
two tectonic plates slide past each other underwater, causing a large movement of water large ocean waves form .large ocean waves move in all directions away from the shifting plates .large ocean waves slow down and increase in height as they reach the coastExplanation:
Tsunamis are initiated underwater and usually happen as a result of underwater earthquakes which can be initiated when tectonic plates slide past each other.
This causes a large movement of water such that large waves form and move away in al directions from the source. As these waves approach the shore they slow down speed but this only increases their height such that when they make landfall the effect could be devastating.
PLEASE HELP WILL MARK THE BEST!!!!
Answer:
#3#5#7
Explanation:
hopes this helps
what is site of gaseous exchange in an insect
Answer:
what are the answers? if I knew the answers I could tell ya
A scientist compares two samples of white powder. One powder was present at the beginning of an experiment. The other powder was present at the end. She wants to determine whether a chemical reaction has occurred. She finds that neither sample bubbles or dissolves in water. She measures the mass and volume of the solids. Sample one has a volume of 45 cm3 and a mass of 0.5 g. Sample two has a volume of 65 cm3 and a mass of 1.3 g. What should the scientist conclude?
A.
The samples have the same color, so no chemical reaction has occurred.
B.
The two samples do not react with water, so no chemical reaction has occurred.
C.
The densities of the samples are different, so a chemical reaction has occurred.
D.
The densities of the samples are the same, so no chemical reaction has occurred.
E.
The densities of the samples are different, so no chemical reaction has occurred.
Answer:
I think it is C because there densities are different.
What does the prefix pseudo mean in the word pseudoscience?
false
subjective
systematic
factual
Hii!!! I believe the answer is A. False. (:
Dirty or harmful substances in the environment?
Answer:
pollution
Explanation:
Pollution is the introduction of harmful materials into the environment. These harmful materials are called pollutants. Pollutants can be natural, such as volcanic ash. They can also be created by human activity, such as trash or runoff produced by factories.
Hope it helps!
