Answer:
The answer is option D
Hope this helps.
What is the process of dissociation?
Biologists think early eukaryotic cells might have formed from prokaryotic
cells that
A. had a flexible outer cell membrane instead of a stiff cell wall
B. gradually developed a stiff outer cell wall for protection
c. already had a nucleus instead of one circular chromosome
D. were inside larger predatory cells called bacteria
Answer:
B: Had a flexible outer cell membrane instead of a stiff cell wall
Explanation:
a p e x
Question 4
1 pts
Volcanic eruptions are the result of the movement of tectonic plates. Which of the
following most affects the movement of these tectonic plates?
The movement of ocean currents
O Heat within Earth
The gravity of the Moon
Radiation from the Sun
Question 5
1 pts
WILL MARK BRAINLIEST
Scientists have been studying threats to coral reefs. The percent of reefs affected by various threats are shown in the figure below. A future global temperature increase may affect all categories on the figure. Predict which category would change the most from global temperature increases and propose a testable question that scientists could study.
a. The biggest effect will be on the far right column that includes thermal stress with a greater percentage of reefs falling into the low and medium threat categories. Scientists could test whether reefs that have greater fishing risk also have greater thermal risk.
b. The biggest effect will be on the far right column that includes thermal stress, with a greater percentage of reefs falling into the high and very high threat categories. Scientists could test whether reefs that have greater temperature changes have greater increases in watershed-based pollution.
c. The biggest effect will be on the far left column that includes fishing, with a greater percentage of reefs falling into the high and very high threat categories. Scientists could test whether increased fishing causes increased marine-based pollution.
d. The biggest effect will be on the far left column that includes fishing, with a greater percentage of reefs falling into the low and medium threat categories. Scientists could test whether reefs that have greater temperature changes have greater increases in fishing threats.
Answer:
It's B
Explanation:
Temperature rise will eventually end up putting coral reefs into the high threat categories, not fishing and DEFFINITELY not lowering their "risk" factor.
Coral reefs are the organisms of the aquatic ecosystem. The column includes the thermal stress that will be affected the most as the reefs fall into high and very high threats are huge. Thus, option B is correct.
What is the effect of thermal stress on coral reefs?Due to an increase in pollution and global warming, the oceans have heated up, which results in thermal stress and leads to coral bleaching and threat to the coral reefs.
The percentage of the very highly threatened, highly threatened, slightly threatened, and threatened reefs are seen majorly due to the thermal stress. Thermal stress is in increases amount due to oceanic warm-ups.
The thermal stress due to increased carbon dioxide activities and acidity leads to coral bleaching causes the destruction of the reefs and their endangerment.
Therefore, option B. the far right column labeled thermal stress has the biggest effect on the coral reefs.
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In need of help bad.
Which of the following best explains the production of large amounts of the amino acid glycine betaine by Survivor plants?
A. They have a random mutation in their genome.
B. They have been genetically engineered by humans.
C. They have always had the gene for this amino acid.
D. They have been given special nutrients by humans.
Answer:
I think it is C
Explanation:
Amino acids have various prominent functions in plants. Besides their usage during protein biosynthesis, they also represent building blocks for several other biosynthesis pathways and play pivotal roles during signaling processes as well as in plant stress response
Answer: B
Explanation:
I just took the quiz
The grassland biome in Nigeria constitute about ......of the country. *
A. 50%
B. 25%
C. 75%
D. 10%
Answer:
hey!
your answer is 75%
this is because the normal answer is 78%
i have done more research and found out that it is actually around 80%
so i can assure you that 75% is the answer
Explanation:
hope this helps
pls put brainliest
Which reminds the same as the distance of an object from earth changes? Size of the force, strength of gravity, mass of the object, weight of the object
Answer: Mass
Explanation: Mass never changes regardless of the other factors listed
Answer: Mass of an object
Explanation: i just took the quiz.
PLEASE HELP I AM BEGGING
Select the correct answer from each drop-down menu. A species of fish evolved over thousands of years to have gills that allowed the fish to swim deep in the sea. What’s the effect of this development on deep-water resources? The fish developed the gills because of _____. Because the fish are now able to swim in deep water, their____ in shallower water will have less food. Likewise, competition for food among deep-water fish that eat the same types of food will_____
1 . Genetic modification, Hybridization, or Natural selection
2.competitors,Predator, or prey
3. Decrease, increase, or Not change
Answer: natural selection, predators, increase
Explanation:
Most issues people have with sleeping could be solved by
A. avoiding consistent bedtimes
B. going to sleep later at night
C. establishing proper sleep hygiene
D. exercising right before bedtime
Answer:
C. establishing proper sleep hygiene
Explanation:
If you sleep at consistent times and establish proper sleep hygiene most people could solve their sleeping issues very quickly
PLEASE HELP WILL MARK BRAINLIEST
Select the correct answer from each drop-down menu. A species of fish evolved over thousands of years to have gills that allowed the fish to swim deep in the sea. What’s the effect of this development on deep-water resources? The fish developed the gills because of _____. Because the fish are now able to swim in deep water, their____ in shallower water will have less food. Likewise, competition for food among deep-water fish that eat the same types of food will_____
1 . Genetic modification
Hybridization
Natural selection
2.competitors
Predator
Prey
3. Decrease
Increase
Not change
HELP! Now!!!
A. The separation of functions ensures that photosynthesis can continue running no matter what light conditions are present.
B. The presence of separate light-dependent and light-independent reactions ensures that the plant can survive through day and night.
C. Thylakoid and stromal fractions correspond to regions in the intact chloroplast that have overlapping functions.
D. Compartmentalization within the chloroplast keeps the light-dependent and light-independent reactions in close proximity but separated.
Answer:
A. The separation of functions ensures that photosynthesis can continue running no matter what light conditions are present.
Explanation:
please help First we need to covert 29 inches to miles. You do this by taking 29 and dividing it by 12. Then divide your answer by 5280. Multiply this answer by 5 (number of revolutions) and then multiply by 60 to get your answer in miles/hour.
Steps:
29 Inches = Miles 0.000457702
Divide by 5280 = 8.66859848e-8
Multiply by 5 = 4.33429924e-7
Multiply by 60 = 0.00002600579
Answer: 0.00002600579 or 0.00936208635
Please mark brainliest
Hope this helps.
What is the female part of the plant that produces eggs called?
Answer:
In flowering plants, the female reproductive structures that produce seeds are contained within the carpels of the flower. A carpal consists of the stigma, style and ovary. The ovary contains ovules (eggs) that become seeds once they are fertilized.
Landfills produce gas from the breaking down of trash by bacteria in the absence of oxygen. What gas does the MSW landfill
The produced landfill gas is about 50 percent
In MSW landfills, this gas is removed by a
Answer: B Methane and
C Methane collection system
Landfills produce gas from the breaking down of trash by bacteria in the absence of oxygen. What gas does the MSW landfill produce?
The produced landfill gas is about 50 percent
Methane
In MSW landfills, this gas is removed by a
Methane collection system
The produced landfill gas is about 50 percent methane and this gas is removed by a methane collection system.
What is MSW?Municipal Solid Waste also referred to as trash is consists of everyday items such as product packaging, grass clippings, furniture, clothing, bottles, food scraps, newspapers, appliances, paint, and batteries.
The produced landfill gas is about 50 percent methane and this gas is removed by a methane collection system.
Thus, this is the answers for the given scenario.
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A blastocyst is a group of cells that forms after a human egg is fertilized. The
blastocyst consists of two types of cells. Some of these cells will become the
placenta. What do the other cells develop into?
A. All of the cells of a developing fetus
O
B. The skeletal and muscular systems of the fetus
a
C. The umbilical cord linking the fetus and mother
O
D. The nervous and endocrine systems of the fetus
SUBV
Answer:
A. All of the cells of a developing fetus
Explanation:
As stated in the question, the blastocyst is a collection of cells formed as a result of several divisions of the ZYGOTE. This means that the zygote at some point becomes a blastocyst. The blastocyst itself is a collection of cells that make up the inner and outer layer. The outer layer is called trophectoderm, which gives rise to the trophoblast that later develops into the PLACENTA that nourishes the embryo.
The cells that make up the inner layer forms the embryo. These cells are stem cells that will eventually differentiate into all the cell types that makes up an embryo.
Answer:
A
Explanation:
The offspring of a particular cross are 100 percent heterozygous for tallness. What were the most likely genotypes of the parents?
Answer:
Both parents where dominent for tallness
Explanation:
because heterozygous means that the two genes in this case from the parents are the same. The letters that you could use to indicate this could be TT meaning dominent
What is the next step in muscle contraction after the actin changes shape?
A. An ATP molecule binds to the myosin.
B. Myosin and actin slide past each other.
C. A calcium ion binds to actin.
D. Myosin binds to actin.
Answer:
D. Myosin binds to actin.
Explanation:
The correct option is D.
What are the steps of muscle contraction in order?
The process of muscular contraction occurs over a number of key steps, including:
Depolarisation and calcium ion release.Actin and myosin cross-bridge formation.The sliding mechanism of actin and myosin filaments.Sarcomere shortening (muscle contraction)What is the next step in muscle contraction after calcium ions bind to actin?If present, calcium ions bind to troponin, causing conformational changes in troponin that allow tropomyosin to move away from the myosin-binding sites on actin. Once the tropomyosin is removed, a cross-bridge can form between actin and myosin, triggering contraction.
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Earth is not completely round due to its rotation.
True
False
What was Friedrich Miescher's contribution to the discovery of the genetic code? He created the first photograph of the structure of DNA. He discovered how the DNA bases pair together. He created the first accurate model of DNA's structure. He extracted and observed DNA from white blood cells.
Answer:
He extracted and observed DNA from white blood cells.
Explanation:
Friedrich Miescher, who is a Swedish Botanist, is the scientist who isolated for the first time. In 1869, Miescher isolated a chemical he called NUCLEIN, which is called Nucleic acid now.
He discovered this so called "NUCLEIN" substance from the nuclei of white blood cells. Nucleic acids are the DNA and RNA we know today, hence, Miescher's discovery was significant to the genetic code as he even agitated for the inclusion of his discovery into inheritance.
Answer:
D. He extracted and observed DNA from white blood cells.
Explanation:
I took the test
Grassland animals reproduce mainly during..... *
A. Rainy seasons
B. Dry seasons
C. Predators' attack
D. Hibernation
Answer:
hey mate your answer is
HIBERNATION
Mark as brainlist
RNA Polymerase
ATGCTGCATGA CGGTCAC
REC...
o
CG AC
3
DNA
Strands
Direction in which the mRNA will be built
RNA Nucleotides
Complete 9 additional base pairs. Remember, there is no thymine (T) in RNA. The adenine (A) in the DNA
needs to pair with uracil (U).
Answer:
Explanation:
the first structure is for DNA along with the nucleotide base paring which will result in the solution of the question
HELP! NOW!
A. Disruption of glucose transport across the cell membrane will decrease ATP production by mitochondria.
B. An increase in glucose transport across the cell membrane will decrease CO2 production by mitochondria.
C. Inhibition of mitochondrial function will cut off all ATP supplies for cytosolic processes.
D. Inhibition of cytosolic functions forming lactate will cut off supplies for mitochondrial processes.
the answer is b an increse in glueclose levels
Describe three ways in which deforestation damages the local environment?
Explanation:
1. Increased green house gases: In addition to the loss of habitat, the lack of trees also allows a greater amount of greenhouse gases to be released into the atmosphere. Healthy forests absorbs carbon dioxide from the atmosphere, acting as valuable carbon sinks. Deforested areas lose that ability and release more carbon.
2. Water in the atmosphere:
The trees also help control the level of water in the atmosphere by helping to regulate the water cycle . In deforested areas, there is less water in the air to be returned to the soil. This then causes dryer soil and the inability to grow crops.
3. Soil erosion and flooding:
Further effects of deforestation include soil erosion and coastal flooding. Trees help the land to retain water and topsoil, which provides the rich nutrients to sustain additional forest life.
A physician wants to observe the monocytes from a patient. Design an experiment the physician can perform to retrieve monocyte cells.
Answer:
White blood cells can be called the strong defender of our body from foreign substances. These cells are responsible for increasing the immunity power of a person.
Explanation:
Monocytes cells are also called white blood cells. These cells play a role an antigen that fight with outer danger and protect other white blood cells as well and prepare other cells to reduce the dead blood cells and renovate new blood cells.
These cells prevent cancer cells and fight against foreign antigens or particles. The Monocytes are the cells that develop in the bone marrow of a person and develop red blood cells.
In white blood cells, some macrophages cells are called the scavengers in the bone marrow that eat foreign particles and increase the immunity power of the person. The diagnose can be done with the help of blood testing.
Major adaptive features of herbivores in grasslands include.... *
A. Possession of claws
B. Ability to move stealthily
C. Possession of suction pads
D. Feeding on widespread vegetation
Answer:
D
Explanation:
Answer:
D
Explanation:
A and B are both adaptations that you would expect to find in carnivores so they would more easily be able to find and catch pray, and C is an adaptation that is found in many arboreal animals, so they can easily climb vertical surfaces. D is the only answer that makes sense. I hope this helps :)
Consider this animal cell. The organelles in an animal cell are labeled. Part A is a structure with stacked membranes, part E represents small dots on the nucleolus, part F is a network of hollow tubes, flattened sheets, and round sacs, and part G is a bean-shaped structure with folding inside. Which organelle is responsible for producing the energy for cellular processes? organelle A organelle E organelle F organelle G
Answer:
G is a bean-shaped structure with folding inside
Explanation:
The Bean shape structure is the shape of Mitochondria, therefore it is the organelle of cellular respiration.
Kreb's Cycle and oxiadative phosphorylation are the major stages of of Cellular respiration which takes place in the mitochondria.
Cellular respiration is the process of extracting the energy as ATPs contained in foods(glucose, fatty acids, Aa) by combining them with oxygen.
Electron transport chains generate the energy for pumping protons to generate the energy, for ATPs synthesis, by enzyme ATPase synthases.
Answer:
D.
Explanation:
what are some possible reason of epidemic in 1989-1991?
Answer: People were probably not getting vaccinated or the bacteria became immune to the vaccine.
Explanation: yw plz mark brainliest i need one more (:
The hypothalamus controls excretions from the pituitary gland. It causes the release of some hormones from the pituitary by direct nervous control, and others by secreting releasing and inhibiting factors that stimulate the pituitary to secrete hormones. Which best describes the hypothalamus? It is a connection point between the nervous and endocrine systems. It is both an exocrine and endocrine gland. It is referred to as the “master gland.” It secretes its contents into ducts.
Answer:
The hypothalamus controls our nervous system and hormones that control how we feel
Explanation:
The statement "It is a connection point between the nervous and endocrine systems" best describes the hypothalamus.
What is a hypothalamus?The hypothalamus is a region of the brain that is responsible for maintaining homeostasis in the body by regulating various physiological processes.
It is a crucial link between the nervous and endocrine systems, as it controls the release of hormones from the pituitary gland by both direct nervous control and secretion of releasing and inhibiting factors. Therefore, The statement "It is a connection point between the nervous and endocrine systems" best describes the hypothalamus.
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VERY EASY QUESTION. WILL MARK BRAINLIEST
What is the name of the process by which decomposers convert organic nitrogen to ammonia?
Ammonification
Denitrification
Fixation
Nitrification
Answer:
fixation
Explanation:
bacteria convert the nitrogen in the soil into ammonia through a process called nitrogen fixation. Decomposers also produce ammonia by converting animal waste and dead plants and animals into organic and inorganic materials, including ammonia