Answer:
Bohr Diagram
Explanation:
Is a Diagram where you put the element in the middle and rings with dots around the outside representing shells and the number of electrons. Almost always taught at middle school/High school.
Which of the following statements correctly describe centrioles? Check all that apply.
A) Centrioles are only found in animal cells.
B) Spindle fibers are connected to centrioles.
C) Centrioles are only present during metaphase.
D) Chromosomes and centrioles are made of the same materia
Answer:
a,b
Explanation:
edge
The statements that correctly describe centrioles are that they are only found in animal cells and spindle fibers are connected to centrioles. Therefore, the correct option is A and B.
What are centrioles?Centrioles are cylindrical structures found in animal cells that play a role in cell division.
Statement A- Centrioles are only found in animal cells and not in plant cells or bacteria. Hence, it is correct.
Statement B—The spindle fibers are connected to centrioles and play a crucial role in pulling the chromosomes apart during cell division. Hence, it is also correct.
Statement C- Incorrect, as centrioles are present throughout the cell cycle, not just during the metaphase stage.
Statement D- Incorrect, as chromosomes and centrioles are not made of the same material. Chromosomes are composed of DNA, while centrioles are made of microtubules. Therefore, the correct option is A and B.
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Which statement is one component of the cell theory?
CO
All living and nonliving things consist of one or more cells.
O Cells and living organisms are spontaneously created.
Cells are the most complex unit of structure and function in living things.
A cell is the basic unit of structure and function of all organisms.
Answer:
A cell is the basic unit of structure and function of all organisms.
Explanation:
This is included in the cell theory.
PLEASE ANSWER 15 POINTS
determine the CHARACTER of the bond that will form between phosphorus and bromine
Help please!!!!!!!!!!!!
Answer:
upload a better picture so i can see the screen evenly
Explanation:
Which molecule can freely diffuse through the cell membrane?
Oxygen
Nitrogen
Hydrogen
Glucose
In your own words, define or describe what you
already know about photosynthesis?
Answer: Okay so Photosythesis is the process used in most plants (except carnivorus plants) when the plant uses its chroloplasts (cells only plants have) to convert sunlight into sugar which makes food for the plant so it can live without having to hunt for food.
Explanation:
I hope this helps sorry if it doesn't :(
Have a good day :)
Stay motivated :)
Answer:
Photosynthesis is the process used by plants, algae, and certain bacteria to convert the energy from sunlight (or other usable light sources) into chemical energy. Chemical energy is the energy these organisms use for different metabolic processes. During this process, they take in the carbon dioxide produced by all breathing organisms and release oxygen, which we breathe in once again, into the atmosphere.
Which organs are part of the excretory system?
A. gizzard, beak B. stomach, esophagus C. large intestine, small intestine D. kidney, bladder
Answer:
I would go with D
Explanation:
The kidney excretes bile and the bladder excretes urine.
I hope this helps in any way.
Answer: D. Kidney and bladder
Explanation: The kidneys filter your blood and form urine. Urine is then stored in the bladder and leaves/ is excreted from your body.
which types of rock can be the source of deposited sediment
Answer: sedimentary
Explanation:
What type of trees looses their leave on fall
Answer:
deciduous trees
Explanation:
Answer:
Deciduous trees
Explanation:
In the box provided explain why living organisms
contain more hydrogen atoms than any other
atoms, yet 65% of a typical organism's mass is
oxygen
І
Answer:
Explanation:
Living organisms are mostly made of water. Water is a molecule made from 2 hydrogen atoms and 1 oxygen atom, H2O. Now even though there are 2 hydrogen atoms for every oxygen atom in a living organism oxygen atoms are much heavier than hydrogen atoms. Hydrogen atoms are more than 15 times lighter than oxygen atoms and this is why they can be fewer atoms of oxygen in the body but they will still represent a lot of its weight.
Answer:
The living species comprise more number of hydrogen atoms in comparison to any other atoms, still 65 percent of the usual organism's mass is oxygen. The prime reason for this is that an atom of oxygen comprises sixteen times more mass in comparison to a hydrogen atom.
Explanation:
Which of the following
perform cellular respiration?
(2A)
All living things
Only animals
Only humans and plants
Only plants
Help please!!!!!!!!!!!!!!!!!!
Answer: A
Explanation:
Why is biodiversity so high in tropical rainforests yet so low in tundra and desert biomes?
Explanation:
The tropical rainforest is made up of a dense network of trees, shrubs and vegetation.
This zone on earth is the most biodiverse on the earth surface. It receives the highest insolation of all places on earth and so radiant energy here is very high.
Due to this, the net productivity is very high. This implies that a wide range of food is available to support the diverse organisms. Also, the wet and dry seasons provides a very conducive weather for most organisms to survive.Tundra and deserts have low precipitation and the conditions are very harsh.
Question 1 (2 points)
How did we define homeostasis?
Question 1 options:
Actively changing due to an environmental stimulus
Taking “raw” materials and turning it into a usable energy
The ability to increase in size and complexity
Regulation of bodily functions to stay within a certain range
Question 2 (2 points)
Saved
A hypothesis can be described as
Question 2 options:
a testable explanation.
a theory.
a law.
a wild guess.
Question 3 (2 points)
You notice you begin to sweat whenever the door to your bedroom is closed. This is most closely related to which step in the scientific method?
Question 3 options:
making an observation
forming a hypothesis
forming a conclusion
recording data
Question 4 (2 points)
In an experiment, the variable being tested or changed is the
Question 4 options:
control variable
dependent variable
responding variable
independent variable
Question 5 (1 point)
Match each of the following terms with the correct definition?
dependent variable
controls or constants
independent variable
hypothesis
1.
An testable explanation to explain a natural phenomenon
2.
the variables that are held constant in an experiment
3.
the variable that is measured as data in an experiment
4.
the variable that is controlled by the experimenter
Question 6 (2 points)
Some chickens lay an egg every day. Other chickens produce few eggs. A study is planned to examine some factors that might affect the number of eggs produced by chickens. Which of the following is NOT a suitable hypothesis for the study?
Question 6 options:
If the cage for the chickens is larger, they will produce more eggs.
If more eggs are produced by the chickens, they will lose more weight.
If there is more protein in the feed, then more eggs are produced.
If chickens receive more hours of light, then they will produce more eggs.
Question 6 (2 points)
Some chickens lay an egg every day. Other chickens produce few eggs. A study is planned to examine some factors that might affect the number of eggs produced by chickens. Which of the following is NOT a suitable hypothesis for the study
If the cage for the chickens is larger, they will produce more eggs.
If more eggs are produced by the chickens, they will lose more weight.
If there is more protein in the feed, then more eggs are produced.
If chickens receive more hours of light, then they will produce more eggs.
Sam wished to investigate how fertilizer run-off affects the growth of algae in freshwater lakes and streams. He set his experiment up as follows. He placed 900 ml of water into each of five 1000 ml glass beakers. To each beaker, he added 5 ml of water from an aquarium which contained a large concentration of algae. The beakers were placed under a lamp which was on a timer to provide 12 hours of light each day. Liquid fertilizer was added to the beakers in the following amounts.
Each week, a random sample from each of the beakers was examined under a microscope to get a count of the number of algal cells present.
What is the independent variable in this experiment?
Answer:
question 1 is 4. question 2 is 2. question 3 is 1. question 4 is 2. question 5 is 1=3 2=2 3=4 4=1. question 6 is 2
What is Cellular Respiration and what is the formula for it?
Answer:
Summary. Aerobic respiration is the aerobic catabolism of nutrients to carbon dioxide, water, and energy, and involves an electron transport system in which molecular oxygen is the final electron acceptor. The overall reaction is: C6H12O6 + 6O2 yields 6CO2 + 6H2O + energy (as ATP).
Explanation:
i said it first
The fossil record is incomplete and does not contain all of the Earth's past organisms. Why have some organisms been found as fossils while others have not?
A. Fossils only exist for organisms that lived over 3 million years ago.
B. Fossils only exist for organisms that had shells or hard outer body coverings.
C. Only very large organisms have enough body mass to result in fossil formation.
D. Most organisms die and decompose without leaving any fossil remains.
Answer:
The answer is D.
Explanation:
We can easily knock out answer choice A, as fossils only take around 10,000 years to form completely. Not just for the organisms that lived 3 million years ago. Answer B as well, since theres been fossils for about just every animal out there. Answer C, we have seen the tiniest of organisms turn into fossils before, so this is outright wrong. Answer D, is correct. Why? Because fossils need the PERFECT conditions to be properly made. We´ve all seen a dead cat on the road or two. Everytime we visit, we notice how slowly more and more deterioated the body gets. Until theres nothing but maybe the skull and some other few spare bones left. Which those bones, soon turn into fertilizer for the ground / dirt beneath it.
What would be the end result of mitosis if the DNA did not replicate during interphase?
Answer: If cytokinesis took place before mitosis, chromosomes would be divided haphazardly, resulting in a defective cell. ... If chromosomes did not replicate during interphase, each new cell would receive only half the information needed to function properly.
Explanation:
The Formation of the new cell from the old cell is called cell division.
There are two types of cell division, these are as follows:-
MitosisMeiosisThe formation of the new DNA from the old DNA is called replication. The enzymes responsible for the formation of the new DNA is called DNA polymerase.
During the cell division, the DNA doubles its amount at the S phase of the interphase. If in this phase the DNA will not duplicate then at the telophase one cell has no chromosome and become the case of the nullsomy.
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which statement accurately describes bioaccumulation:
1) a substance, such as a pesticide, collects in the body of an organism over time.
2) the concentration of a substance increases as it moves up the food chain
3) a method to get rid of an invasive species in an ecosystem
4) pesticides in the soil, air and water become sources of pollution.
Answer: 1
Explanation:
I think its the first one because I learned this before and the first one seems reasonable
Whitch part of the cells help keep all its pieces together
Answer:
Cytoplasm
Explanation:
34. Animals store most of their excess energy reserves as _______ because
A. glucose; it is easy to break down.
B. fat; they store twice as much energy per gram.
C. protein; it is a compact source of energy in their bodies.
D. carbohydrates; they store twice as much energy per gram of glucose.
PLZZZ HELP!!! I NEED HELP DESPERATELY!!
What is the gain of FADH₂ per pyruvic acid in the citric acid cycle?
what are the 3 major purposes for the cell cycle
Question 1 of 5
Which two layers in this model represent parts of Earth that combine to form
the lithosphere?
A
B
с
D
О А. А
ОВ. С
Ос. В
ODD
Answer:A and C
Explanation:
Answer:
where is the picture.
Explanation:
how do 2 siblings from the same parents look different to each other
Answer:
After all, kids get their genes from the same parents. But brothers and sisters don't look exactly alike because everyone (including parents) actually has two copies of most of their genes. And these copies can be different. Parents pass one of their two copies of each of their genes to their kids.
Explanation:
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Which statement explains a difference between a cell wall and a cell membrane?
BRAINLYIST PLEASE HURRY
Answer:Precipatete
Explanation:
which two products are bromelain likely to produce when breaking down proteins
amino acids
fatty acid
monosaccharides
nucleic acid
polypeptides
disaccharides
The two specific products that bromelain produces when breaking down proteins are polypeptides and amino acids.
What are proteins?Proteins are a major group of biological macromolecules composed of a linear chain of aminoacids that are linked by means of peptide bonds.
Proteins are fundamental macromolecules present in all biological systems and they can be made by one or more polypeptides in order to form molecules that exhibit primary, secondary, tertiary, and quaternary structures.
These macromolecular structures can be evidenced by the tridimensional shapes that adopt different proteins, which can be globular or fibrous.
In conclusion, the two specific products that bromelain produces when breaking down proteins are polypeptides and amino acids.
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Metals have properties that we use when we walk into safe buildings, use electricity, or cook food .
TRUE OR FALSE?
Don came up with the hypotheses that butterflies prefer to eat nectar from white flowers Don conduct an experiment and learn that his hypotheses with not correct what should Don do next
Answer:
B
Explanation:
A. Don should change the data he collected to make it look like the hypothesis was correct.
B. Don should test a new hypothesis.
C. Don should communicate the results of his experiment.
D. Don should hide his results so that nobody can see that he was wrong.
The correct thing for Don to do would be to test another hypothesis.
Hypotheses are generalized statements without any experimental tests. Once they are tested and are found not to be true, the next thing is to discard them.
A hypothesis that has been proven not to be true no longer serves any purpose. The next thing would be for Don to make and test a new one.
The correct option is B.
Answer:
Don should communicate the results of his experiment.
Explanation:
It is possible for organisms to reproduce both sexually and asexually?
Your answer:
True or false
Answer:
true
Explanation:
Answer:
The answer to that question is:
True