Answer:
Animal cells are the basic structural and functional units of animal tissues and organs. They are eukaryotic cells. It means that, unlike prokaryotic cells, animal cells have membrane-bound organelles suspended in the cytoplasm enveloped by a plasma membrane.
Explanation:
Answer:
Animal cells are the basic structural and function units of animal tissues and organs. Animal cells have membrane-bound organelles suspended in the cytoplasm enveloped by a plasma membrane.
Explanation:
Pls HeLp mE, ILL GIVE BRAINLIEST!!
Do you think scientists will succeed in being able to make objects totally invisible?
Answer:
Yes I do
Explanation:
Scientists already made a shield that could make you sort of invisible
Answer: I don't think so
Explanation: To be honest, being able to be invisible either has to do with the time of day and what your wearing. Take for example, robbers wear all black when robbing at night. When they run, It'll be almost impossible to make them out in the night unless you shine a light on them.
Which of the following best explains why the atomic theory changed over the past 200
years?
New experiments led to revised ideas,
Few people believed it was correct.
The atomic model was incomplete.
The theory was terribly flawed
Answer:
New experiments led to revised ideas
Answer:
New experiments led to revised ideas
Explanation:
Select the term most closely associated with the statement: Protozoans living in the intestine of a termite secrete
enzymes that digest cellulose, providing digestive end products of value to both organisms.
A
mutualism
B
commensalism
с
parasitism
D
Saprophytism
E
Competition
Answer:
A. mutualism
Explanation:
because what is secreted by the termite is beneficial for both
Zebra mussels were first discovered in north america in the great lakes in 1988. This invasive species eats phytoplankton and other microscopic organisms in fresh water. What would be most likely effect if zebra mussels are introduced into a local fresh water lake?
What best describes Osmosis
Answer: Osmosis is the spontaneous net movement of solvent molecules through a selectively permeable membrane into a region of higher solute concentration, in the direction that tends to equalize the solute concentrations on the two sides.
Explanation:
Examine the diagram of the Amoeba. The feature identified by the arrow is an adaptation for which function? O A. storing food O B. movement O C. detecting light OD: pumping out excess water
Answer:
HII
Explanation
I beileive its C i hope this helps
As you observe an unknown cell under a microscope, you make the following observations. Need help ASAP. Thanks!
Answer:
Plant cellHope it helps youThe other molecule that came from the synthesis
Is called
a ______simple sugar's what it is.
A. Organelle
B. Oxygen
C. Glucose
Answer: Glucose
Explanation:
What are the resources/factors that all organisms compete for in their environment?
How do adaptations allow an organism to compete "better" for those resources/factors?
Answer:
Organisms with the best adaptations are the ones who are can compete for the best. They are the ones who survive. Predators, animals that hunt other animals, must compete to find prey. Prey, animals that get eaten by predators, must compete to stay away from predators and to find their own food.
5 differences between aerobic and anaerobic respiration
Aerobic Respiration
*Oxygen is present when this form of respiration takes places
*In this form of Respiration gases are exchanged
*it can be easily found in the cytoplasm and mitochondria
*glucose breaks down into carbon dioxide and water
*all higher organisms such as mammals have this type of respiration.
Anaerobic Respiration
*Oxygen absent
*Gases aren't exchanged
*found only in the cytoplasm
*Glucose breaks down into ethyl alcohol, carbon dioxide and energy
*bacteria and yeast use this type
what is a gene?
a. a section of RNA that codes for one particular person
b. the chromosomes of the human body
c. a small piece of chromosome, made of DNA
d. the instructions to make a whole organism
Answer: Im pretty sure its A
Explanation:
Epithelial cell must be replaced quickly in order to prevent _______________________ and ____________________ from entering. Also they prevent ___________________________ from escaping the tissues.
Answer: germs and toxins and they prevent moisture from escaping the tissues
Explanation:
Which statements fail to meet the requirements for scientific claim ?
___________________________________________________________
Answer:
The correct answer would be the first and third statements.
___________________________________________________________
___________________________________________________________
Explanation:
A scientific claim is defined as a statement which is a conclusion obtained from numerous experiments and observations.The scientific claim usually remains the same in the provided conditions. In the first statement, Copernicus's model stating that the planets revolve in the circular orbits around the sun was not accepted and thus, it is not a scientific claim. Similarly, Newton's laws of motion are uniform and work properly in the environment. Thus, it also does not form a scientific claim.
____________________________________________________________
1. Use the term ore in a sentence.
Answer:
They used to extract iron ore from this site.
Explanation:
Question 2
Membrane Transport is the movement of substances across the Plasma Membrane. Which of the following types requires energy
Explanation:
active transport is the movement of substances across the membrane using energy from adenosine triphosphate (ATP)
Please look at the picture
Answer:
The answer is C
Explanation:
Plz help ASAP! THANK YOU
Answer:
According to the diagram, what is occurring in step 7 is cytokinesis, with the separation of two daughter cells, following cell division.
Explanation:
Cytokinesis is a process that occurs at the end of mitosis or meiosis, being the final step of cell division. This mechanism allows the separation of the two daughter cells, with equal distribution of cytoplasm and formation of cell membrane, differentiating into two independent cells.
In the diagram it can be observed (step 7) that after the division process —in yellow— two arrows pointing to two cells are evident, which implies the process of cytokinesis.
Prior to the cytokinesis process, karyokinesis occurs, which is the separation of nuclei and formation of the nuclear membrane.
In animal cells, karyocinesis occurs by the effect of a ring of actin and myosin that helps to force the separation. In the plant cell, the fragmoplast is formed, a septum that induces the separation of the daughter cells.
The other options are not correct because:
Cell growth occurs in G1 phase.Cell preparation occurs in interphase.DNA replication occurs in S phase.Mitosis is represented in yellow, and involves 4 phases.1.Pine pollen grains often have air sacs.*
True
False
2.Division 1 of meiosis is called "reduction division." *
True
False
3.Fruits develop from the stamens.
True
False
Answer:
1 true
Air-filled sacs in the pollen grains of pine trees allow pollen to travel farther through the air. ... Each pollen grain is attached to two or three air-filled sacs, or sacci, which develop from the outer layer of the pollen
2 true
process of meiosis involves two divisions of the genetic material. The first division is called the reduction division – or meiosis I
3 false
When a grain of pollen reaches the stigma, it creates a pollen tube for the sperm to journey down the style and fertilize the ovule; fertilized ovules become seeds. Fertilization is the death of the flower, as the petals drop or wither at this point and the ovary starts to enlarge and ripen into what we know as fruit.
what is produced during the Krebs cycle
Answer:
Explanation:
Krebs or citric acid cycle, which is a series of reactions that takes in acetyl CoA and produces carbon dioxide
Difference between seedling and germination
Answer:
Explanation:
A seedling is a young plant grown from a seed in the nursery for the purpose of transplanting, while germination is the process of beginning growth from a seed or spore. In germination plants and fungal species, seeds sprouts to produce a seedling and the formation of spores. The stages of germination include, increase water imbibition into the seed, activation of metabolic activities, and protrusion of the radicle.
why does moving pollen from one pollen to another help the plants
Answer:
Flowers have male parts called stamens that produce a sticky powder called pollen. When pollen from a plant's stamen is transferred to a different plant's stigma, it is called cross-pollination. Cross-pollination produces stronger plants. The plants must be of the same species.
Explanation:
Describe three differences in the organelles of plant and animal cells.
Answer:
structures include chloroplasts, the cell wall, and vacuoles.
Explanation:
because one has it and the other dose not
WILL GIVE BRAINLIEST! help plss
Answer: hi
Explanation: please give me brainliest
A scientist has done his background research and has designed an experiment to test a popular scientific theory. Which of the following should he do next?
Answer:
B
Explanation:He hasn't started the steps yet
What kind of effect can a chromosomal change can have on an organism?
O positive, negative, or no effect
O positive or no effect
O negative effect
O positive or negative effect
Answer: Positive or negative effects.
Explanation: Chromosomal changes is called mutation. Mutation is change or alterations in genetic constituents or chromosomes of an organisms. Not all chromosomal changes are negative or causes genetic disorder bit some have positive effects too. The negative effect causes some genetic disorders but the positive don't have negative impact on health but only the chromosomal sequence might be alter , it functions is still intact.
Answer quick!!
Short answer please
Answer:basicallly what a hypothesis is something you belive in and your trying to prove it. It deifines the relationship between two varaiables.
Explanation:
Answer:
The role of a hypothesis is to give us an idea of what might happen, and if it is right then great, and if it is not then that's fine too because that means it gave us a chance to learn from it and therefore improve our understanding.
Explanation:
yup
Before the 1960s, most ecologists thought that the number of producers in an ecosystem was the only variable that limits the number of herbivores. The idea was that every level was regulated by the amount of food from the trophic level below it.
The complete question is as follows:
1. How did the green world hypothesis differ from this “bottom-up” view?
2. Imagine a simple food chain: Grass -> Grasshoppers -> Mice. If snakes that eat mice are added to the ecosystem, how would you redraw the food chain to represent this change?
3. After the snakes are added, would you expect the amount of grass to increase or decrease? Explain your reasoning.
Answer:
1. The green world hypothesis states that plants or producers are consumed in less quantity by herbivores due to predators and other conditions which is different from the hypothesis as it says the number of the herbivores are regulated by the organism above them in the food web instead of below.
2. before adding snake: Grass →Grasshoppers →Mice ( arrow towards predator)
After adding the sakes: Grass →Grasshoppers →Mice→Snakes. (as snakes eat mice so they will be added after mice)
3. The grasses will decrease as there would be fewer mice due to snakes and the number of grasshoppers will be high which leads to the decrease in the amount of grass.
Describe the process of photosynthesis and be able to identify its reactants and products.
Explanation:
The reactants for photosynthesis are light energy, water, carbon dioxide and chlorophyll, while the products are glucose (sugar), oxygen and water.
Answer:
The reactants for photosynthesis are light energy, water, carbon dioxide and chlorophyll, while the products are glucose (sugar), oxygen and water
Drag each tile to the correct location. Each tile can be used more than once.
What is an inheritance pattern in which a trait is controlled by many genes.
Answer:
Polygenic inheritance is inheritance pattern of a trait controlled by two or more genes.
Explanation: