What description explains how a flower produces a seed? (2 points)
Group of answer choices
1.After the stamen produces pollen, the pollen is moved to the petal to produce a seed.
2.As pollen travels down the stamen, fertilization occurs and a seed is produced.
3.When the ovule receives pollen, fertilization occurs and a seed is produced.
4.When the stigma receives pollen, a seed is produced and then fertilization occurs.
Answer:
Pretty sure its #3
Explanation:
Plants produce flowers to make seeds. To make a seed a flower must be pollinated. Pollen from the male part of one flower travels to the female part of another flower where the seeds are made. ... The petals act like an advertisement to attract various animals, which will carry the pollen from one flower to another.
Please answer ASAP:
Predict what will happen to the concentration of pyruvate, NADH, and H+ when ATP synthase is stopped by oligomycin
The concentration of pyruvate and NADH does not no change, however the concentration of H+ increases.
Oligomycin is a toxic substance to humans, produced by bacteria of the Streptomyces type. It acts by blocking the proton channel in a region of the ATP synthase enzyme, inhibiting oxidative phosphorylation. Thus, the electron transport chain is slowed but not completely stopped.
Cellular respiration consists of a metabolic pathway that breaks down the glucose molecule to produce energy in the form of ATP. Stages of cellular respiration are:
GlycolysisPyruvate oxidationKrebs cycle or the citric acid cycleOxidative phosphorylationGlycolysis consists of the breakdown of glucose to form two pyruvate molecules, where energy is produced in the form of ATP and NADH. Then, pyruvate oxidation occurs, catalyzed by an enzyme called pyruvate dehydrogenase in the mitochondrial matrix. Next, is the Krebs cycle where energy is produced in the form of ATP and other biosynthetic reactions also occur where the intermediates produced are required to make other molecules, such as amino acids, nucleotide bases and cholesterol. Finally, oxidative phosphorylation takes place as a metabolic process that uses energy released by the oxidation of nutrients to produce ATP. It consists of two stages: in the first one, free energy generated by redox chemical reactions in various multiprotein complexes (electron transport chain) and produces an electrochemical gradient of protons (H+) across an associated membrane in a process called chemiosmosis. The respiratory chain consists of three main protein complexes (complex I, III, IV), and several "auxiliary" complexes, utilizing a variety of electron donors and acceptors. The three complexes associate in supercomplexes to channel electron transport molecules, coenzyme Q and cytochrome c, making the process more efficient. So, the proton gradient produced by proton pumping is used to make ATP molecules. Protons move through the ATP synthase down their concentration gradient into the matrix catalyzing the conversion of ADP to ATP.
Then, using oligocycin there will be no change in the concentration of pyruvate since the synthesis of it (from the breakdown of glucose) does not depend upon an ATP synthase. Also, there is no change in the concentration of NADH because it is oxidized and reduced via redox reactions which also does not depend on the enzyme. At last, there is an increase in the concentration of H+ (protons) because its gradient wont be use by the ATP synthase to make ATP molecules.
Learn more about cellular respiration here: https://brainly.in/question/4311203
Why does wind erode the sand in deserts more than the dirt in forests?
There is less water in forests to keep the soil moist.
The dirt in forests is coarser than the sand in deserts.
Forests have larger rocks than deserts.
Deserts have less plant life to hold the soil in place.
Answer:
I think the answer is D
Explanation:
the tree roots helps to hold the dirt down plus the higher amounts od mositure make the dirt denser
Answer:Wind is a stronger erosional force in arid regions than it is in humid regions because winds are stronger. In humid areas, water and vegetation bind the soil so it is harder to pick up. In arid regions, small particles are selectively picked up and transported.
Explanation:
What was the style of the revival sermons?
Answer: To Revive or not to Revive? Exodus 32:19 In 1857 there was a 46 year old man named Jeremiah Lamphere who lived in New York City. Jeremiah loved the Lord tremendously, but he didn’t feel that he could do much for the Lord until he began to feel a burden for the lost and accepted an invitation
Explanation:
Answer:
True revival preaching is a miracle of God’s grace where the Holy Spirit takes the words of men and applies them to the hearts of people. And second, all these men used the law of God powerfully, effectively, and savingly.
Explanation:
Hope this helps
Trudy made this Venn diagram comparing interphase and cytokinesis.
Which statement belongs in the region marked X?
Is the longest stage
DNA is copied
The number of nuclei doubles
The number of cells doubles
Answer: The number of cells doubles
Explanation:Look up the cell cycle and look for the word Cytokinesis and you might see a picture of two cells.
Match the muscle with its type.
deltoid: (straited, smooth, or cardiac)
triceps: (straited, smooth, or cardiac)
heart: (straited, smooth, or cardiac)
sartorius: (straited, smooth, or cardiac)
intestine: (straited, smooth, or cardiac)
veins: (straited, smooth, or cardiac)
biceps: (straited, smooth, or cardiac)
trapezius: (straited, smooth, or cardiac)
stomach: (straited, smooth, or cardiac)
gastrocnemius: (straited, smooth, or cardiac)
A purebred plant with round seeds is pollinated with a purebred plant with wrinkled seeds. All of the offspring have round seeds. This is an example of: *
a.simple dominance
b. co-dominance
c. incomplete dominance
Which is NOT true about seismic surface waves
A.
do not originate at the focus
B.
cause most of the earthquake's damage
C.
created from combined P and S waves
D.
faster moving than the S-wave
Answer:
D faster moving than the s-wave
100 pt to answers it
Examine the diagram of the cell cycle. Which label identifies the step labeled W? A:Anaphase: chromosomes thickens
b:Metaphase: chromosomes thicken
C:Anaphase: chromosomes are pulled apart
D:Metaphase: chromosomes are pulled apart
Answer:
There is no diagram. i don't think I can answer this question with no diagram
The diagram below shows the layers of a rock having a trilobite:
Which statement about the rock fossils is true?
A. Fossil B is older than fossil A.
B. Fossil A is younger than fossil C.
C. Fossil C belongs to the same period as the trilobite.
D. Fossil B belongs to the same period as the trilobite.
Answer:
A.
Explanation:
The lower it goes, the older it gets!
Answer
D
Explanation:
D because d is d and d is right
Scienceeee i need help asap no rocky lol please actually i need help
Answer: Erosion and deposition
Explanation: As the water ran through and against the river banks and land, it slowly begins to erode. Also, as deposition occurs (Deposition-When a river deposits the silt and other things in it out into the ocean or where ever it empties.) it creates a delta.
plz plz help asap
The movement of tectonic plates in two locations is described below:
Location A: Tectonic plates collide and one plate moves over the other while the other plate is pushed deep into the mantle
Location B: Tectonic plates slide past each other
Which statement is most likely correct?
A. Volcanic eruptions may occur in both locations.
B. There is no chance of earthquakes in the two locations.
C. Mountains may form in Location B but not in Location A.
D. Subduction happens in Location A but not in Location B.
Please help me I will give you the brain thing and extra points. image below part 4
Answer:
maybe c
Explanation:
it's mad blurry I can barley see it
Name at least one thing that encouraged rapid growth and diversity in
organisms.
Answer:
Explanation:
Cambrian explosion
i found it on google sorry if I am wrong! God bless, good luck, and stay safe! :) :) :)
To a taxonomist a plant is the sum total of all its characteristics.
True
False
Use what you know about asexual and sexual reproduction to sort the terms below into the correct column. If the term is related to asexual reproduction, write it in the column on the left. If the term is related to sexual reproduction, write it in the column on the right. If the term is related to both types of reproduction, write it in both columns.
Terms: DNA, male and female, one parent, unique, spores, uniform, traits, egg, and sperm
HELPPP PLEASEE and dont answer something random please actually help
im asking again bc i need help asAPPPPP
Answer: DNA, one parent, spores, uniform are asexual
and male and female, unique, traits, egg, sperm are sexual
Explanation: Sexual reproduction just means combining genetic material from two parents. Asexual reproduction produces offspring genetically identical to the one parent.
Answer:
DNA, one parent, spores, uniform are asexual
and male and female, unique, traits, egg, sperm are sexual
Explanation:
Rosa eats a peanut butter sandwich for lunch. Peanut butter contains a lot of protein, and bread is mostly starch. Rosa plans to go for a run later this afternoon. Rosa is breathing normally. How do her cells use these molecules to release energy for her body to run? (Sentence starter: Rosa's cells use these molecules by...
Answer:Rosas cells use muscles by running
Explanation:
Scientists can determine the absolute age of rocks thorugh:
a
The Law of Superposition
b
Index fossils
c
Radioactive dating
d
Fault lines
Answer:
radioactive dating, .....
Answer:
C
kdfiodjsfoisjdfoisd
PLEASE HELP ME !!
Which statement about organisms in the fossil record is correct?
Organisms show a steady decrease in diversity, interrupted by extinction events.
Organisms show an increase in diversity only right after an extinction event.
Organisms show a steady increase in diversity, interrupted by extinction events.
Organisms show a decrease in diversity only right before an extinction event.
Answer:
Organisms show a steady increase in diversity, interrupted by extinction events.
Explanation:
Please help me I will give you the brain thing and extra points. image below. part 3
Answer:
B
Explanation:
hope this helps!
Which of the mass movements requires water to be present?
mudflows
creep
landslides
slump
when will I get a 10 in my exam?
Answer:
next friday
Explanation:
qwertyuiop
Answer:
I would hope not! I hope you get something far better off than a 10, good luck.
How is transpiration related to photosynthesis?
1 They are not related, they are two separate processes that do not interact.
2 Transpiration brings water to cells; photosynthesis carries it away.
Photosynthesis creates sugar, and transpiration delivers the sugar and water to the plant roots.
Transpiration delivers water needed for photosynthesis to the cells.
Answer:
Water along with Carbon dioxide are essential for the process of Photosynthesis. Transpiration, the loss of water through stomata creates what is known as the Transpiration pull. This force enables a continued supply of water for photosynthesis, and distribution of nutrients to the plant for growth and maintenance.
Answer:
Transpiration is the loss of water from a plant in the form of water vapor. Water is absorbed by roots from the soil and transported as a liquid to the leaves via xylem. ... water to the leaf cell surfaces where it is converted from a liquid into a gas ... photosynthesis; however, this large opening will also allow the leaf to lose large.
All animals which possess a spine are included in the same _____.
1. species
2. genus
3. phylum
4. class
Answer:
Phylum
Explanation:
All vertebrate animals belong to a phylum which are also called what i remember, Chordata.
Also, animals with a spine are also called vertebrate animals, so jellyfish and other spineless animals are not included as a vertebrate.
How quickly do valley glaciers move?
a few centimeters to a few meters per hour
a few centimeters to a few meters per year
a few centimeters to a few meters per day
anywhere from 1 meter to 20 meters per day
When the atom is pulled away only slightly, so that it is still within the attraction curve on the graph, does it move in response to attractive or repulsive forces?
my science class
When pulled slightly, the atom moves in response to attractive forces.
Meaning of potential energy curve::
It is common to find the potential energy curve that explains the bonding of two atoms to form a molecule. There is minimum intermolecular interaction when the atoms are isolated from each other.
Attractive forces:When the atom is pulled away only slightly, so that it is still within the attraction curve on the graph, it moves in response to attractive forces.
Learn more about potential energy curve: https://brainly.com/question/3405662
Give an example of an event that might cause genetic drift. *
Answer:
by recurring small population sizes, severe reductions in population size called "bottlenecks" and founder events where a new population starts from a small number of individuals.
Answer:
the bottleneck
Explanation:
Cell division is controlled by the _____.
style
pistil
nucleus
embryo
Answer: nucleus
Explanation: Not only does the nuclues control the cells functions but it also goes through mitosis
Describe what this picture means about the organisms listed. Use evidence (something you can see) from the picture. *
Answer:
They all have the same structure as the human.
Explanation:
What percent of energy is transferred from the sun to the level indicated?
50 percent
100 percent
10 percent
90 percent
Answer:
Explanation:
0.5 1 0.1 0.9
Answer:
10 percent
Explanation: