Answer:
Due to competition, many animals starve, many become prey, etc.
Explanation:
Following fertilization and two rounds of cell cleavage, each of the four cells of a frog embryo has a centriole that is preparing for the next cleavage. The centriole in each of these cells can trace its origins back to the original centriole provided by the _______ prior to the first cleavage. Please choose the correct answer from the following choices, and then select the submit answer button. Answer choices secondary oocyte sperm ootid oogonium primary oocyte
Answer:
sperm
Explanation:
Centrioles are cylindrical organelles that play a major role during cell division, where they work to form the centrosome which duplicates and moves to opposite ends of the cell. The proximal centriole provided by the sperm cell mediates the separation of chromatids during the first cleavage of the fertilized egg. Upon fertilization, the proximal centriole forms the aster rays where microtubules act as a guide for the migration of the female pronucleus.
Witch statement about human activity and the environment is NOT true?
You discover a new species of ascomycete fungus and find that the diploid nuclei of the fungus contain 22 chromosomes. A single diploid cell in an ascus will undergo one round of meiosis, followed in each of the daughter cells by one round of mitosis, producing a total of eight ascospores. If a single, diploid G2 nucleus in an ascus contains 800 nanograms (ng) of DNA, then a single ascospore nucleus of this species should contain how much DNA (ng), carried on how many chromosomes
what is photosynthesis
Answer:
Explanation:
photosynthesis is the process in which algae plants and bacteria use energy from the sun and turn it into food for themselves
(07.03 MC)
An advantage of disposing of municipal solid waste in a landfill rather than in an
incinerator is that, unlike incinerators, landfills
can be used to generate electricity
do not require electricity to operate
do not contribute greatly to smog or acid rain
can store hazardous materials such as motor oils and pesticides
the use electricity more
Answer:
I and III only
Unit 6 AP Bio edgeunity test answers
Answer:
Test answers? Huh-?
In response to a decrease in tissue metabolic activity, tissue oxygen concentrations ________, which causes a(n) ________. In response to a decrease in tissue metabolic activity, tissue oxygen concentrations ________, which causes a(n) ________. increase : active hyperemic response decrease : dilation of the arterioles decrease : increase in tissue ischemia decrease : active hyperemic response increase : constriction of the arterioles
Answer:
The correct answer is - increase: constriction of the arterioles.
Explanation:
When the physical activity is decreased by the tissues of the muscle, the oxygen concentration in the tissue increases which leads to the constriction of the arterioles.
It takes place in order to decrease blood flow and blood pressure as oxygen requirement is less in the tissue in decreased physical metabolic activity. The constriction of arterioles results in more resistance to decrease the blood flow in capillaries.
organize at least seven of your body's cell processes that require energy
Answer:
search up the question and you find lots of accurate results
Energy is required for a variety of vital biological and cellular functions, including ATP hydrolysis. These include active transport, Purinergic signaling, synaptic signaling, intracellular signaling, DNA and RNA synthesis, and muscular contraction.
What do you understand by cell ?
The fundamental units of all living things are cells. There are many billions of cells in a human body. They provide the body structure, absorb nutrients from meals, turn those nutrients into energy, and perform certain tasks.
Adenosine triphosphate molecules directly provide the energy needed for cellular functions (ATP). One adenosine molecule and three phosphate groups, or Pi for short, make up ATP. The chemical energy that is stored in each ATP molecule is not very large. By dissolving ATP into adenosine diphosphate (ADP) and a phosphate group, this energy may be released.
The energy process include active transport, Purinergic signaling, synaptic signaling, intracellular signaling, DNA and RNA synthesis, and muscular contraction.
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what can we do to reduce the demand for Forest Products
answer:
finding alternatives for forest resources that are more sutainable and less harmful.
Explanation:
by having alterantives to the matierials and products we harvest from forests, we can reduce their demand and better preserve said forests and the wildlife within them.
Why are Wind Turbines being moved offshore?
Answer:
Wind turbines are being moved offshore because the wind comes at the right time: Offshore winds are usually higher throughout the day, allowing for more reliable and productive electricity output when market demand is highest. The majority of land-based wind resources are more efficient at night when demand for electricity is smaller.
The image represents the mitosis process and it is important because:
A. produces gametes with half genetic information than parent cell.
B. allows processes as growing and repair tissues in the body.
C. does not produce cells with the same genetic information than parent cell.
D. always produce somatic cells with the same characteristics, it does not matter the organ in the body.
Answer:
B. allows processes as growing and repair tissues in the body.
Explanation:
Mitosis is a process where a single cell divides into two identical daughter cells. During mitosis one cell divides once to form two identical cells and the dividing cell's chromosomes are copied and then distributed equally between the two new nuclei of the daughter cells.
The major purpose of mitosis is for growth and to replace worn out cells. It also plays an important part in the development of embryos.
Mitosis is divided into five stages:
1. Interphase- during interphase, the DNA in the cell is copied resulting in two identical sets of chromosomes. Microtubules also extend from the centrosomes outside the nucleus
2. Prophase- during this phase, the sister chromatids in each chromosome pair up, the nuclear membrane dissolves and the mitotic spindle consisting of microtubules and other proteins extend across the cell between the centrioles which move to opposite ends of the cell.
3. Metaphase- the chromosomes line up at the centre of the cell and the mitotix spindle attaches to eachmof the sister c hromatids.
4. Anaphase- the sister chtomatids are pulled apart to each end of the cell by the mitotic spindle.
5. Telophase- at each pole, a full set of chromosomes gather together, a membrane encloses each chromosome, the cell pinches at the middle and then divides into two. This is known as cytokinesis.
HELP!!
A mother with the genotype AA displays the dominant version of the trait. Her husband displays the recessive version of the trait. Their child displays the dominant version of the trait. How is this possible?
A. The mother gave a recessive allele to their child.
B. The father gave two recessive alleles to their child.
C. The mother gave the dominant allele to their child.
D. The father gave the dominant allele to their child
Answer: C. The mother gave the dominant allele to their child.
describe the cell structure of a typical plant cell. give the functions of each part of the cell structure
Answer: Plant cells have a cell wall, a large central vacuole, and plastids such as chloroplasts. The cell wall is a rigid layer that is found outside the cell membrane and surrounds the cell, providing structural support and protection. Plant cells have a cell wall, a large central vacuole, and plastids such as chloroplasts. The cell wall is a rigid layer that is found outside the cell membrane and surrounds the cell, providing structural support and protection. The central vacuole maintains turgor pressure against the cell wall. Nucleus - DNA Storage, Mitochondrion- Energy production, Smooth Endoplasmic Reticulum (SER)- Lipid production; Detoxification, Rough Endoplasmic Reticulum (RER)- Protein production; in particular for export out of the cell, Golgi apparatus- Protein modification and export, Peroxisome- Lipid Destruction; contains oxidative enzymes, Lysosome- Protein destruction. brainliest?
Explanation:
Which of the following is a correct representation of secondary
succession?
A. bare rock -> lichens + mosses -> grass -> shrubs -> trees
B. trees -> shrubs
-> flowers -> grass
C. soil -> grass -> shrubs -> trees
D. grass -> bare rock -> soil -> trees
Does the Earth have naturally occurring climate cycles, and if so, how
frequently?
Answer:
Earth has experienced cold periods (or “ice ages”) and warm periods (“interglacials”) on roughly 100,000-year cycles for at least the last 1 million years.
Explanation:
Which planets have interiors made of partially frozen water and ammonia?
DNA undergoes ____to produce_____.RNA undergoes____to produce_____
I am not really sure but you can get the answer from it :
They discovered a fundamental mechanism of how proteins protect chromosomes while DNA is being copied (a process called DNA replication), which relies on a protein called RPA. Cells have a limited amount of this protein, which they use as 'band aids' to protect the DNA temporarily during replication.
17.All reptiles reproduce by
a.) internal fertilization, and most are oviparous.
b.) internal fertilization, and most are viviparous.
c.) external fertilization, and most are viviparous.
d.) external fertilization, and all are ovoviviparous.
How are leaves and roots similar? (Select all that apply.)
A. both contain xylem
B. both contain a pistil
C. both contain phloem
D. both contain stomata
Answer:
Similarity: Both stems and roots contain vascular tissue (xylem and phloem), the circulatory system of the plant.
Pls help me and thank youuu
Answer:
I think your answer would be C... please correct me if im wrong.
what is carrying capacity related too
Answer:
The number of organisms which can survive to the resources within an ecosystem.
Explanation:
Hope this helps!!
Please mark this answer as Brainiest.
The planets in our solar system revolve around the Sun. One revolution is considered to the one year. Year length varies for each planet. The planets DO have one thing in common though. What do they have in common?
A) Day length is the same for all.
B) Their orbits are elliptical in shape.
C) All the planets are solid, orbiting bodies.
D) The force of gravity is constant throughout the solar system.
Answer:
i think letter D.
Explanation:
correct me if im wrong
Please help and thank you whoever you are
how can natural selection account for the long tongues of butterflies?
Answer:
Because butterflies with longer tongues were better equipped to eat nectar from inside flowers, and so it was easier for them to eat and grow. So they were better quipped to survive than those with shorter tongues.
HURRY IT’S TIMED I’LL GIVE YOU BRAINLIEST
Which illustrates the relationship between cooling magma and mineral formation?
A. Darwins theory
B. Theory of relativity
C. Bowen‘s reaction series
D. Newtons principle of physics
Answer: C. Bowen‘s reaction series
Explanation:
Which of the following molecular models represents an element?
I want to know characteristics of reptile, please answer quick :))
Answer:
Reptiles are vertebrates. They have backbones.Their bodies are completely covered with scales.They are cold-blooded.Reptiles produce shelled eggsAll species fertilize eggs internally.All species of reptiles have at least one lungAnswer:
Some of the characteristics of reptiles are :-
Reptiles are cold-blooded.They have dry skin covered with scales, without any glands.They are vertebrates with their body divided into head,neck, trunk and tail.They respire through lungs.Most of them lay eggs.Dogwood and oak trees are two kinds of plants found in a forest. These trees and other forest plants get the energy they need for making food from blank , which the plants use to produce sugar.
fill in the blank
Answer:
The sun / The UV lights that the sun emit
Explanation:
Dogwood and oak trees are two kinds of plants found in a forest. These trees and other forest plants get the energy they need for making food from Sun that is the solar energy which the plants use to produce sugar. Sun is the basic source that is used for photosynthesis.
What is the end product of photosynthesis ?Glucose is the end product of photosynthesis which is the ultimate source of energy for plants.
Photosynthesis usually takes place in 4 steps where the first step is the absorption of light where the light from sun is absorbed by stomata and the various reactions that take place in the light are called as the light reactions.
Transfer of light helps to electrons to excite and the excitation of electrons helps to make new products various phosophorylation reactions that is the production of ATP is taking place or the lysis of the product is taking place as well.
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Which are steps that could be used to solve 0 = 9(x2 + 6x) – 18 by completing the square? Check all that apply.
18 + 81 = 9(x2 + 6x + 9)
18 + 9 = 9(x2 + + 6x + 9)
18+ 36 = 9(x2 + 6x + 36)
11 = (x + 3)2
= (x + 6)2
342 =
V99 = (x +
Nbbff
Explanation:
What is the name of this website
or the book?
Answer:
A and D
Explanation:
How would the acidic solution affect a clam living in the ocean ? what does a weakened shell mean for the clam
Answer:
Ocean acidification makes it harder for clams and mussels to find the material they need to build and maintain their calcium carbonate shells. A weakend shell often results in but is not limited to the organisms growing slowly or neededign more food to actually survive if the acidity levels were to increase.
Explanation: