Answer:
first it start from small atoms and change slow
Which form of early photosynthetic life consumed much of the CO₂ in Earth's atmosphere, allowing life to become possible?
A Cyanobacteria
B. Spirochetes
C. Protists
D. Red-Yellow algae
The cladogram above diagrams the evolutionary history of chordates. Which structural adaptation led to greater motion and a more diverse diet? A) lungs B) true bone C) vertebrate D) jaws and paired appendages
Answer:
D) Jaws and paired appendages
Explanation:
Jaws provided the ability to churn and grind food, while paired appendages enabled various locomotive methods such as running, walking, hopping, etc.
Mendel did a parental cross with true-breeding tall pea plants and true-
breeding short pea plants. The plants in the F1 generation were 100% tall
plants. What did he find for the plants in the F2 generation? *
*
a. A 4:0 ratio of tall plants to short plants since the F1 plants used in that cross were
all tall.
b. A 3:1 ratio of tall plants to short plants since the F1 generation was heterozygous.
c. A 4:1 ratio of tall plants to short plants since the allele for tall plants is dominant.
d. A 1:1 ratio of tall plants to short plants since the F2 generation had the same
characteristics as the parent plants.
Mendel evaluated in his pea plants were each expressed as one of two versions, or traits. Mendel deduced from his results that each individual had two discrete copies of the characteristic that are passed individually to offspring. We now call those two copies genes, which are carried on chromosomes. The reason we have two copies of each gene is that we inherit one from each parent. In fact, it is the chromosomes we inherit and the two copies of each gene are located on paired chromosomes. Recall that in meiosis these chromosomes are separated out into haploid gametes. This separation, or segregation, of the homologous chromosomes means also that only one of the copies of the gene gets moved into a gamete. The offspring are formed when that gamete unites with one from another parent and the two copies of each gene (and chromosome) are restored.
For cases in which a single gene controls a single characteristic, a diploid organism has two genetic copies that may or may not encode the same version of that characteristic. For example, one individual may carry a gene that determines white flower color and a gene that determines violet flower color. Gene variants that arise by mutation and exist at the same relative locations on homologous chromosomes are called alleles. Mendel examined the inheritance of genes with just two allele forms, but it is common to encounter more than two alleles for any given gene in a natural population.
Which type of mutation of THE FAT CAT SAT is changed to THE FAT CAA
SAT? *
O inversion
O insertion
O substitution
O deletion
Answer:
substitution
Explanation:
the T in CAT was replaced, or substituted, with an A
You approach the edge of a pond filled with ducks. the ducks are swimming, but when they see you, they approach the shore and congregate around you. what might best explain this behavior? question 8 options: the ducks have associated people with food handouts and so they become close. the ducks are diurnally migrating to humans. the ducks are competing for territories on the shore. the ducks have imprinted on the humans.
Answer:
the ducks have associated people with food handouts and so they become close.
Explanation:
Answer:
the ducks are competing for territories on the shore.
Explanation:
THINK IT IS IF NOT SORRY
The famous pink-colored sand of Bermuda's beaches is due to crushed shells of ________, marine organisms with tests (porous shells) made of organic material hardened by calcium carbonate. lobsters foraminifera radiolarians green algae
The famous pink-colored sand of Bermuda's beaches is due to crushed shells of foraminifera organisms.
What are foraminifera organisms?The foraminifera organisms are unicellular protists (Protista kingdom) that live in water bodies as above described.
Foraminifera organisms are life forms that generally exhibit an external shell composed of different materials.
These shells can be very conspicuous and they can take many distinct forms and/or shapes.
Learn more about foraminifera organisms here:
https://brainly.com/question/15305036
Deposition of calcium and phosphorus in the bones is influenced by:.
Vitamin D is one of the fat-soluble vitamins that acts in normal bone formation, it influences the deposition of calcium and phosphorus in the bones.
What is vitamin D?It is a fat-soluble vitamin that plays a leading role in the formation of bones and teeth, being essential for their growth, development and strengthening.
It is essential for the absorption of calcium and the formation of the skeleton, that is, it participates in the calcium-phosphorus homeostasis of the organism.
Therefore, we can conclude that vitamin D is one of the fat-soluble vitamins that acts in normal bone formation, it influences the deposition of calcium and phosphorus in the bones.
Learn more about vitamin D here: https://brainly.com/question/24637931
Predict what would happen to the environment and the health of people if a community's solid waste was not tended to and disposed of in some way.
Explain why e-waste is a problem and present one possible way of mitigating the growing e-waste problem.
Explain three things you think local governments can do to encourage more primary and secondary waste prevention
Answer:
1.I predict that plants and animals would get sick, die, and lose their homes, while us humans would get sick and we would live in filth.
2.E-waste is a growing problem because as the want for electronical devices grows, people get rid of their new ones in the wrong ways when they could be recycling the parts and contribute to the worlds waste a lot. One was of mitigating this problem is to encourage people to recycle their e-waste.
3.Three things local govermants can do to encourage more primary and secondary waste prevention are setting stricter laws on waste disposal, encourage locals to recycle, and put stricter waste control on factories and businesses.
Explanation:
Why does carson think that living things cannot adapt to overcome the new chemicals that human beings introduce to the natural world? new chemicals are produced so quickly that living things do not have time to adapt. living things cannot adapt to artificially created chemicals. chemicals are designed so that living things cannot adapt to them.
New chemicals are produced so quickly that living things do not have time to adapt is Carson's thought which is denoted as option A.
What is Adaptation?This is defined as changes in the physical and behavioural characteristics of an organism that help them to survive in the changing environment.
Carson believes that living things cannot adapt to overcome the new chemicals that human beings introduce to the natural world because they are produced so quickly that living things do not have time to adapt.
Read more about Adaptation here https://brainly.com/question/29594
#SPJ4
Answer:
New chemicals are produced so quickly that living things do not have time to adapt.
Explanation:
Edge 2020
The structure that controls hormone release by both the anterior pituitary and the posterior pituitary is the ________.
A muscle that opposes or reverses a particular movement is a.
Answer:
A muscle that opposes or reverses a particular movement is an antagonist. *When a prime mover is active, the antagonist muscles may stretch or remain relaxed.
What is the molecular tool that can cut dna at specific recognition sequences so a gene of interest can be inserted into a plasmid?.
Which variation of progressive muscle relaxation involves contracting each muscle group repeatedly with progressively less tension with each contraction
The variation that involves contracting each muscle group repeatedly with progressively less tension with each contraction is incremental muscle relaxation.
What is incremental muscle relaxation?Incremental muscle relaxation is a type of variation during a physical exercise aimed at relaxing the muscles.
Incremental muscle relaxation is a fundamental component in any training exercise program.
Incremental muscle relaxation consists of relaxing certain groups of muscle fibers that have undergone rhythmic contractions.
Learn more about incremental muscle relaxation here:
https://brainly.com/question/731531
Which of the following would be the best activity to help you maintain a healthy skeletal system? a. exercising often and eating a balanced diet b. resting often and receiving proper immunizations c. exercising often and eating only protein for your morning meal d. resting often and eliminating calcium from your diet please select the best answer from the choices provided. a b c d
The best activity that helps to maintain a healthy skeletal system is exercising often and eating a balanced diet.
What do you mean by the Skeletal system?The skeletal system may be defined as the central framework of the body. It consists of bones and connective tissue, including cartilage, tendons, and ligaments.
A healthy skeletal system depends on our daily activities like how we sit, walk, sleep, etc. A well-established daily routine of exercises and physical activity keeps our skeletal system healthy and proper.
Therefore, the best activity that helps to maintain a healthy skeletal system is exercising often and eating a balanced diet.
To learn more about the Skeletal system, refer to the link:
https://brainly.com/question/1283837
Answer:
A :)
Explanation:
edge 2023
If one homologue carries alleles A and B and the other homologue carries alleles a and b and two crossovers occur between these loci, what allele combinations will be found in the gametes
Answer:
ab AB Ab will not be produced. If double crossover occurs, no new combinations of gametes are produced. therefore the parental combinations, AB and ab, will be the only gametes made.
Explanation:
In the given scenario, the combination of allele will be AB and ab.
What is a loci?A locus is a specific, fixed position on a chromosome where a specific gene or genetic marker is found.
If a chromosome that is homologous carries alleles A and B and the other homologue carries alleles a and b and two crossovers occur between these loci, the combination of allele will be AB and ab.
Thus, the gamete will have alleles AB and ab.
For more details regarding alleles, visit:
https://brainly.com/question/7602134
#SPJ2
PLEASE HELP ASAP!!! I really need help filling this out and its really important that the answers are correct. Im giving tons of points and brainliest
Answer:
The other person's answer sounds REALLY good.
Explanation:
A blender can be used to break down the strawberry tissue in homogenization step. True False.
A blender can be used to break up the strawberry tissue in the homogenization step, because the strawberry needs to be macerated so that the chemicals used for extraction reach all of its cells more easily.
What cell structures were disrupted in the strawberry experiment?The solution for extracting DNA, also known as the lysis solution, is so named because of its function in disrupting the plasma membrane and other membranes.
With this information, we can conclude that a blender can be used to break up the strawberry tissue in the homogenization step, because the strawberry needs to be macerated so that the chemicals used for extraction reach all of its cells more easily.
Learn more about DNA in brainly.com/question/264225
What causes most of the stress humans have put on the environment?.
The rapid expansion of the population causes most of the stress that humans have put on the environment.
What is environmental stress?The expression environmental stress makes reference to all types of human activities that cause harm to the environment.
Environmental stress is deeply associated with the loss of biodiversity in natural populations.
In conclusion, the rapid expansion of the population causes most of the stress that humans have put on the environment.
Learn more about environmental stress here:
https://brainly.com/question/6836907
#SPJ1
cloud A has absorbed heat and cloud B has released heat. Which cloud will release rain and why?
CLoud b would release rain because it is the first one to release heat.
Alternation of generations means that plants produce.
Answer:
Plants produce both haploid gametes and haploid spores in alternation of generations.
Explanation:
In alternation of generations, the multicellular haploid form, known as a gametophyte, is followed in the developmental sequence by a multicellular diploid form, the sporophyte. During this process, plants produce gametes and spores. Gametes are always haploid, and spores are always haploid in the plant alternations of generations life cycle, but may not be haploid in plants that do not undergo alternation of generations.
I hope this helps!
during cell respiration, energy stored in the chemical bonds of glucose is released as energy in the form of _____
1. ATP
2.light
3.heat
4.food
Answer: During cell respiration, energy stored in the chemical bonds of glucose is released as energy in the form of ATP.
Answer:
1. ATP
Explanation:
Cells convert glucose to ATP in a process called cellular respiration.
ANSWER THIS PLEASEE FOR BRAINLIST ILL DO ANYTHING!!!
Six different plug-in hybrid vehicles were tested for their electric-only driving range. The same six cars were tested seven days in a row. Their batteries charged to full capacity
overnight. The average range for each vehicle is listed in the table.
PHEVs Range (miles)
Car 1
96
Car 2
130
Car3
85
Car 4
75
Car 5
135
Car 6
100
What is the median range of the PHEVs tested in the chart?
98 miles
103.5 miles
100 miles
135 miles
Answer:
98
Explanation:
A 98 miles would be the middle from the totals provided above
You have 24 offspring, 23 with black fur and 1 with white fur. What was the genotype of the wild mouse?
Answer:
i think that the white mouse is a mutation. can you provide the answer choices.
Explanation:
Which of the following is a response caused by an external stimulus?
A
Vomiting due to a virus
B
Running away when frightened
C
Release of hormones to regulate blood sugar levels
D
Wilting of plant leaves due to the loss of turgor pressure
Answer:
vomiting due to a virus
Explanation:
What kind of human impact increases the issue of acid precipitation
Answer:
water/air pollution + greenhouse gas emissions
Explanation:
Water pollution gets toxic chemicals into the water cycle and greenhouse gases can mix together to also form some pretty dangerous chemicals that both increase the issue of acid precipitation.
Answer: The kind of impact that increases the issue of acid precipitation is Power plants
Explanation: hope this helped
Which of these behaviors represents an example of migration? question 12 options: a skunk sprays a foul-smelling oil when a predator comes too close to it. a male bird sings a specific song to attract female birds of the same species. a beaver slows down its activities and remains in its home throughout the winter. caribou travel hundreds of kilometers before winter starts, and then return in the spring.
What is the structure that moves sugar in minerals through the stem?
Answer:
Xylem transports water and minerals. Phloem transports sugars and amino acids dissolved in water.
The carrying capacity for a population of squirrels is 620 squirrels, with a maximum rate of increase of 1. 0 per individual per year. Using the logistic population growth model, what is the approximate population growth rate for a population of 275 squirrels?
106 squirrels per year
153 squirrels per year
239 squirrels per year
389 squirrels per year
The approximate population growth rate for a population of 275 squirrels is 239 squirrels a year, counting deaths at the same rate.
How to calculate the population growth rate?In technical terms, to obtain the growth rate (r), 1 is subtracted from the nth root of the quotient between the final population (Pt) and the population at the beginning of the period considered (P0), multiplying the result by 100 , where "n" is equal to the number of years in the period.
With this information, we can conclude that the approximate population growth rate for a population of 275 squirrels is 239 squirrels a year, counting deaths at the same rate.
Learn more about population growth in brainly.com/question/18415071
#SPJ1
For a human offspring to express a paternal mitochondrial gene, the individual must have inherited a mitochondrion from the sperm. This is called ___
Answer:
paternal leakage
Explanation:
Which order of events is correct?
1)zygote→stem cells→cell differentiation
2)zygote→cell differentiation→mitosis
3)mitosis→cell differentiation→stem cells
4)stem cells→zygote→cell differentiation
Answer:
Stem cells zygote cell differentiation