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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After a cross, there are three times as many tall plants as there are short plants in the
Answer:
the plant in the F1 were allowed to self-polinat the plant in the p generation are the true breeding
Exercise 4 (Module 6.9) Glycolysis is the first of three steps in cellular respiration. Review glycolysis by matching each phrase on the right with a term on the left. Some terms are used twice.
_____ 1. Compound formed between glucose and pyruvic acid
_____2. Not involved in glycolysis _____3. Fuel molecule broken down in glycolysis
_____ 4. Produced by substrate-level phosphorylation
_____5. Invested to energize glucose molecule at start of process
_____ 6. Reduced as glucose is'oxddized _____7. Glucose converted to two molecules of this
_____8. Assembled to make ATP
_____9. "Splitting of sugar"
_____10. Carries hydrogen and electrons from oxidation of glucose
A NADH
B. Pyruvic acid
C. ATP
D. NAD+
E Glucose
F. Glycolysis
G. ADP and P
H. Oxygen
I. Intermediate
Answer:
Explanation:
?????????? i don't undrssanted
Respiratory System Lungs
Which level is an organ that is mostly made of tissues?
A) Lungs
B Lung Cells
C Respiratory System
D
Mammal
Answer:
c
Explanation:
Helllpppp!!!!
How would the disappearance of shrimp, copepods, and amphipods affect the other organisms in the ocean food web
Water in ocean currents can descend when it becomes colder and saltier than
the surrounding water. If water descends to the bottom of the ocean, then other
water must rise to the top. What causes water to rise to the top of the ocean?*
It is forced upward by underwater mountain ranges
It cools down and dissolves additional salt
It is brought upward by organisms that live in the ocean
It becomes less dense than the surrounding water
Answer: D it becomes less dense than the surrounding water
Explanation: when the water becomes colder and saltier it becomes more dense so the less dense water rises to the top.
Give an example of a type of cell that generally does not divide once it has developed
Answer:
Heart and nerve cells. Neurons also lose the ability to divide as they mature.
Explanation:
how can you reduce the amount of waste you send to landfills
Answer:
recycling
Explanation:
so things can be used again
The increase of carbon dioxide in the atmosphere is contributing to a global rise in Earth's temperature, known as.....________ & ________
Answer:
Water vapor and clouds are the major contributors to Earth's greenhouse effect, but a new atmosphere-ocean climate modeling study shows that the planet's temperature ultimately depends on the atmospheric level of carbon dioxide
Explanation:
Plants participate in both short- and long-distance signaling. Explain how nerve cells show these two functions, as well. (3 points)
Nerve cells release chemical signals into synapses between them (short distance). They also transverse their lengths with an electrical signal that can result in signal travel along a series of cells (long distance).
Nerve cells release hormones into the synapses between them (short distance). These hormones can also transverse the bloodstream (long distance).
Nerve cells release neurotransmitters into gap junctions between them (short distance). They also use electrochemical gradients that can travel the length of each cell quickly, along a network of cells (long distance).
Nerve cells use plasmodesmata to communicate between them individually (short distance). They also use ion-gated channels to create an electrochemical signal that can be propagated over long distances in their network (long distance).
Answer:
Nerve cells release chemical signals into synapses between them (short distance). They also transverse their lengths with an electrical signal that can result in signal travel along a series of cells (long distance).
Explanation:
Nerve cells release neurotransmitters in the synaptic cleft which are capable of affecting nearby cells such as other nerve cells and muscle cells. Neurotransmitter molecules include, among others, serotonin, acetylcholine, dopamine, norepinephrine and histamine. Moreover, the synaptic cleft is the space that separates a neuron cell and its target cell. On the other hand, neurons transmit signals through electrical impulses. Electrical impulses travel long distances in the body carried by axons of the nerves. Thus, nerve impulses connect the brain and spinal cord and they carry signals to different parts of the body.
Every cell in your body contains organelles (structures that have specific functions) Just like organs in the body, each organelle contributes in its own way to helping the cell function One organelle found in both plant and animal cells ads like the cell's shipping and delivery center A major function of this organelle is the modifying, sorting and packaging of proteins for secretion which organelle sonts and packages proteins for secretion? (SC 912 L 143 - Sub Cat SC 912 1 142) O Endoplasmic reticulum O Golgi Apparatus Peroxisomes 0 Lysosomes
Answer:
B
Explanation:
When did self-fertilization occur during Mendel's experiments?
Answer: Self-pollination happens before the flowers open, so progeny are produced from a ... Mendel did thousands of cross-breeding experiments.
Explanation:
DESCRIBE THE FUNCTION OF A CELL MEMBRANE AND ITS RELATIONSHIP TO WHAT HAPPENS INSIDE A CELL
Answer:
cell membrane's main function is to act as a selectively permeable barrier to the transport of materials across it. Membrane is made up of phospholipids arranged in a bilayer fashion. The phospholipids are amphipathic in nature, that is, contain both a hydrophobic and a hydrophilic end.
Explanation:
What goes in the blank ?
Answer:
I would say the answer is cells, because you basically need cells to live
Explanation:
Cell division results in reproduction, growth, replacement and recycling of the organism.
true or flase
Answer:
False
Explanation:
Answer:
True
Explanation:
Cell division is a form of reproduction in cells. It helps in the replacement of old cells, and allows multicellular organisms to develop from one cell.
Help will mark Brainlest!!! Plssss
Glucose reacts with Oxygen to form Carbon dioxide and water. During this process, glucose is oxidized to Carbon dioxide and water. Energy released during the reaction is captured by the energy-carrying molecule ATP
(adenosine triphosphate).
THE REACTION
C6H12O6 + 6O2 → 6CO2 + 6H2O
Why is solar energy considered a inexhaustible energy resource
Answer:
because it doesn't run out & you can always get more
Explanation:
woo hoo
The nucleus _____.
A.has a net negative charge
B.contains the electrons, protons, and neutrons
C.is the center core of an atom
Answer:
C
Explanation:
Answer:
C.
Explanation:
A. is wrong because the electrons are on the outermost of the atom; that would also mean that B. is wrong. C is correct because the nucleus is, in fact, the center core of the atom.
8.
Which has the greatest mass?
A. 10 large paperclips
B. Your textbook
C. Empty pop can
D. 10 marbles
Answer:
Id go with B, its the most logical choice.
What is the common term used for heterotrophs?
Answer:
Heterotrophs are known as consumers because they consume producers or other consumers. Dogs, birds, fish, and humans are all examples of heterotrophs. Heterotrophs occupy the second and third levels in a food chain, a sequence of organisms that provide energy and nutrients for other organisms.
Can I have brianliest
Answer:
Consumers
Explanation:
The reason is that they consume producers or other consumers.
when a tornado destroys a house is the hydrosphere interacting with the geosphere?
Answer:
yes
Explanation:
What types of organisms have mitochondria
Answer:
sup ._.
Explanation:
The mitochondrion (/ˌmaɪtəˈkɒndrɪən/, plural mitochondria) is a semi autonomous double-membrane-bound organelle found in most eukaryotic organisms. Some cells in some multicellular organisms may, however, lack mitochondria (for example, mature mammalian red blood cells). A number of unicellular organisms, such as microsporidia, parabasalids, and diplomonads, have also reduced or transformed their mitochondria into other structures.
hope this helps
Which of the following occurs during telophase II? Select all that apply.
1) New nuclei begin to form
2) The centrioles pull at the chromatids
3) Chromatids arrive at opposite ends of the cell
4) Chromosomes are drawn to the metaphase plate
5) Cytoplasm divides and two daughter cells are formed
Answer: 1, 3, 5
new nuclei begin to form
chromatids arrive at opposite ends of the cell
cytoplasm divides and two daughter cells are formed
Answer:
Which of the following is the correct order of the stages of meiosis II?
prophase, metaphase, anaphase, telophase
Which of the following occurs during telophase II? Select all that apply.
new nuclei begin to form
chromatids arrive at opposite ends of the cell
cytoplasm divides and two daughter cells are formed
Explanation:
which of the following statements best explains why plants wilt
Answer:
needs more context bro
A proton is a very tiny particle inside an atom. The mass of the proton is estimated to be 0.00000000000000000000000167 g. What is the mass of a proton in specific notion?
A. 1.67 x 10 24 g
B. 16.7 x 10 -25 g
C. 167 x 10 -26 g
D. 1.67 x 10 -24 g
Answer:
The proton is 1.6726×10−27 kg
Answer:
1.67 x 10-24g
Explanation:
Visual Reading Tool: Inside a Chloroplast
1. Fill in the reactants and products of the light-dependent and light-independent reactions of
photosynthesis.
Light-Dependent
Light-Independent
Reactions
Reactions
NADPH
ATP
THYLAKOID
ADP
STROMA
NADP
2. What is the NADPH responsible for?
3. Where do the "light" reactions (light-dependent) take place?
Answer:
A) Light dependent reactions
Reactants: light, H2O
Products: Oxygen gas
B) Light independent reactions
Reactants: C02
Products: Glucose
2. NADPH is an electron carrier which transfers electrons in the electron transport chain of photosynthesis
3. Light reactions occur in the THYLAKOID membrane.
Explanation:
As depicted in the image in this question, the photosynthetic process can be grouped into two stages viz; light dependent reactions and light independent reactions. The light dependent reactions, which take place in the THYLAKOID MEMBRANE of the Chloroplast, involves the synthesis of ATP (energy carrier) and NADPH (electron carrier) to be used in the next stage. The reactants of light dependent reactions are light energy from sun, and water (H2O) while the product is Oxygen (O2) gas.
In the light independent reactions, the ATP and NADPH are used to synthesize GLUCOSE as a product from Carbon dioxide (CO2) reactant.
2. The NADPH is is an electron carrier produced from the reduction of NADP+, which transfers or donates electrons to other molecules in the electron transport chain of photosynthesis. This is crucial in building of the proton gradient for ATP production.
3. The light reaction or light dependent reaction takes place in the THYLAKOID MEMBRANE of the Chloroplast.
The light-dependent reactions use ADP and NADP to produce NADPH and ATP (it occurs in the thylakoid membrane), whereas light-independent reactions use NADPH and ATP. NADPH is a cofactor.
The light-dependent reactions use sunlight and water (H2O) to produce oxygen (O2), NADPH and ATP, whereas light-independent reactions use carbon dioxide (CO2) NADPH, and ATP to produce simple carbohydrates (e.g., glucose).Both light-dependent reactions and light-independent reactions occur in the chloroplast: light-dependent reactions occur in the thylakoid membrane of the chloroplast, whereas light-independent reactions occur in the stroma of the chloroplast.Reduced nicotinamide adenine dinucleotide phosphate (NADPH) is a cofactor that transports electrons (e-) and protons (H+) released by sunlight into new carbon-carbon bonds and thus serves to produce simple carbohydrates (i.e., sugars).In conclusion, the light-dependent reactions use ADP and NADP to produce NADPH and ATP (it occurs in the thylakoid membrane), whereas light-independent reactions use NADPH and ATP to create carbohydrates.
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Use the distributive property to expand the following expressio (9m-6)7
For lunch, Pat had a baked potato and Erin had a hamburger with no bun. They each consumed the same amount of biomass, but from different trophic levels. In comparison to the amount of land required to produce Pat’s potato, how much land was required to produce Erin’s hamburger?
a. about 10% as much land to produce the hamburger
b. about the same amount of land to produce the hamburger and the potato
c. about 10 times as much land to produce the hamburger
The land was required to produce Erin’s hamburger is about the same amount of land to produce the hamburger and the potato. Option B. This is further explained below.
What is land production?Generally, land natural resource required to generate commodities and services is included.
In conclusion, we see that It takes roughly the same amount of land to produce a hamburger as a potato.
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given the Dna Strand: ATG-CAG-AGA how would i transcribe the corresponding RNA Strand ?
Answer:
The RNA strand that is transcribed from the DNA strand sequence ATG-CAG-AGA is UAC-GUC-UCU, according to the complementarity of nitrogenous bases.
Explanation:
In order for DNA to RNA transcription to occur, one must be aware that:
The transcription meets the criteria of base complementarity, where a purine binds to a pyrimidine. In RNA there is no thymine, so it is replaced by uracil.Given a given sequence of bases the RNA resulting from transcription will be governed by these rules:
DNA: ATG-CAG-AGA
RNA: UAC-GUC-UCU
Where:
Adenine is transcribed in Uracil. Thymine (DNA) is transcribed into Adenine. Cytosine is transcribed into Guanine. Guanine is transcribed into Cytosine.Answer picture question! BRAINLIEST FOR CORRECTNESS!!!!!!!!!!!!!!!!!!!!!!!!!!
Answer:
Decomposer.
Explanation:
Decomposers are the organisms that break down dead things into organic matter and soil.
___________ lyse infected host cells. *
1 point
effector B cells
killer T cells
macrophages
helper T cells
Answer:
Adaptive immunity also involves a memory to provide the host with long-term ... Unlike NK cells of the innate immune system, B cells (B lymphocytes) are a ... Cytotoxic T cells destroy virus-infected cells in the cell-mediated immune ... Helper T- cells are one of the main lymphocytes that respond to antigen-presenting cells.
Explanation: