What is the most abundant plant hormone and where is it found in the plant?
Answer:
Indole-3 acetic acid
Explanation:
IAA causes cell wall extension by activating the proton pump, which keeps the cell wall acidic at a pH of around 4. The cell wall pressure is reduced in these conditions, and water enters the cell, resulting in an increase in cell volume. As the cell grows in size, new cell wall material is required to keep the wall stable. Auxin IAA is a naturally occurring substance. It also promotes cell enlargements, cell division in the vascular cambium, root initiation enlargement, cell division in VA.
IAA can be found in the seeds of many plants, especially legumes like peas and broad beans.
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Which of these oceans remain frozen accept for part of the year, when the edges
melt? (Choose all correct answers)
Arctic
Indian
Pacific
Southern
Atlantic
(please no links thank you)
Answer:
Arctic
Explanation:
Answer: Atlantic/Arcic
Explanation:
You are given a constitutive mutant, but you are not told whether it is constitutive due to a repressor mutation (i-) or an operator mutation (oc). Determine what could be added to the system that would allow you to determine the difference between the two mutants. You will add the same thing to each and indicate the results of the experiment.
Answer:
Explanation:
Repressor molecules, as we recognize them to be proteins occur as transcription factors that may function on their binding sites within the same genome or even on a different genome.
As a result, repressor molecules behave in a trans-active manner. Operator, on the other hand, acts as a binding site mostly on the chromosome genome which can only trigger downstream genes. As a result, Operators are cis-acting.
In this scenario, if we give the system a Plasmid containing a wild-type repressor gene, the repressor molecules would only attach to the usual Operator sites.
In the 1st scenario:
The Operator is regular and normal, but I- is mutated. As a consequence, the additional extra plasmid's normal repressor molecules will stick to the operator site, causing suppression or repressed expression.
In the 2nd scenario: genome
The repressor is natural, but Oc is mutated. As a consequence, the additional extra plasmid's normal repressor molecules would not adhere to the operator region, resulting in the same Constitutive expression.
why are oranges green when they are growing in tropical climates
Answer:
Hey mate.....
Explanation:
This is ur answer.....
Oranges (Citrus sinensis) growing in tropical countries have green skins and orange flesh. ... This is because the green pigment chlorophyll is removed from the fruit, similar to what happens when the leaves of deciduous trees turn brown in the autumn.
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What
type of mutation causes this the sequence AGTATA to become AGTATTA
Answer:
Insertion
Explanation:
Mutation is generally referred to as any change or alteration that occurs to the nucleotide sequence of a gene. There are several types of mutation depending on how it occurs. The types of mutations are; substitution, insertion, deletion, etc.
Insertion mutation is a type of mutation in which one or more nucleotide base is added a sequence. This is the case in this question about an original sequence that reads: AGTATA. We then have the mutated sequence as follows: AGTATTA
Notice that, nucleotide "T" has been added in between T and A. Hence, a type of INSERTION mutation.
4. In some varieties of camelia, flower color is controlled by codominance. The two alleles are red (R) and white (W). The heterozygous genotype is expressed as red and white.
D. What is the phenotype of a plant with the genotype RR?
E. What is the phenotype of a plant with the genotype WW?
F. What is the phenotype of a plant with the genotype RW?
28. Which of the following statements about hormones is incorrect? a) Glands that produce them are ductless glands. b) They are produced only by organs called endocrine organs. c) Some are water soluble and some are not. d) They often maintain steady-state conditions. e) They may turn genes off or on
Answer:
b) They are produced only by organs called endocrine organs.
Explanation:
Hypothalamus can be defined as a small portion of the mammalian brain responsible for the secretion of hormones through the stimulation of the pituitary gland.
It is located between the midbrain and the thalamus. Also, hypothalamus is the most inferior portion in the diencephalon of the forebrain.
Basically, hypothalamus is the most important portion of the brain in vertebrates that controls various bodily functions.
An endocrine system refers to a series of ductless glands and organs responsible for the production and secretion of hormones that are used by the body for the performance of various functions such as metabolism, controlling growth, reproduction, mood, sleep, etc. These hormones are secreted directly into the circulatory system (blood) and then transported to the organs and tissues in the body.
The following statements about hormones are correct;
I. Glands saddled with the responsibility of producing hormones are ductless glands i.e directly secreting hormones into the bloodstream.
II. Hormones are either soluble in water or insoluble in water.
III. Hormones are often responsible for maintaining steady-state conditions in the body of a living organism through homeostasis.
IV. Hormones are typically able to turn genes off or on.
Which flock will be able to eat the most? The least? Why?
Answer: The omnivorous flock will eat the most as it eats both insects and seeds. With the removal of fruit it will not be affected much. The herbivorous flock will eat the least as it has the option to eat seeds only after the removal of fruit. The flocks all started with 10 birds. Flock was X the most successful at feeding, so it will have the greatest number in the second generation. brainliest?
Explanation:
Answer:
The omnivorous flock will eat the most as it eats both insects and seeds. With the removal of fruit it will not be affected much. The herbivorous flock will eat the least as it has the option to eat seeds only after the removal of fruit. The flocks all started with 10 birds. Flock was X the most successful at feeding, so it will have the greatest number in the second generation.
Explain why mining has such a large impact on the environment.
Answer:
Mining has a large impact on the environment because minerals are contained within the Earth. Earth must be removed in order to extract the minerals. When the minerals are close to the surface, the earth is removed, causing destruction to the shape of the land and the flora and fauna living in that area.
Answer: I agree with the above answer
how is specialization beneficial for an organism
Which is not something that scientists help doctors do?
diagnose disease
treat disease
cause disease
prevent disease
The determination of the age of a rock based on the surrounding evidence is called approximate dating, law of superposition, relative dating, or absolute dating.
Answer:
I believe the answer is relative dating. I hope this helps.
Which of the following is a specialist species?
a. Giant Pandas
b. Horses
C. Humans
d. Rabbits
Answer:
A. Gaint Pandas
Explanation:
Answer:
Giant Panda
Explanation:
Floods, droughts, fires, and earthquakes are examples of
Answer:
Floods, hurricanes, tsunamis, earthquakes, volcanic eruptions, forest fires, famine, and droughts are examples of natural disasters, which have adverse effects on countries. In my opinion, I like to see the term “natural disaster” as a word human beings use to blame nature for their lack of environmental sustenance.
I answered the same question before So I went to the answer and copied it.
Question 7 (2 points)
How are chemical and physical changes different on a molecular level? (2 points)
Chemical changes involve the breaking of bonds in molecules.
Chemical changes do not affect bonding between atoms.
C
Physical changes do not involve molecules.
Physical changes cause new molecules to form.
11. When an organism joins a new population, its genes become part of the 2 points new population's gene pool. How does this gene flow affect populations? A. Gene flow between populations has no effect on the gene pool. B. Gene flow between populations increases genetic diversity over time. C. Gene flow between populations decreases genetic diversity over time. D. Gene flow increases the chance for reproductive isolation which can cause new species to form.
Need Help with this urgently, please only right answers
RR = Red WW = White RW = roan
1. A roan cow is crossed with a red cow.
What percent of the offspring will be red?
2. A red cow is crossed with a white cow.
What percent of the offspring will be roan?
3. A roan cow is crossed with a white cow.
What percent of the offspring will be roan?
What percent will be red?What percent will be white?
i need help with this have to have it turned in by 3
Why does the Piney Woods Ecoregion have less soil erosion?
In mitosis, the DNA is replicated once, while in meiosis it is replicated twice.
True or False?
Answer:
False
Explanation:
Like mitosis, meiosis is a form of eukaryotic cell division. However, these two processes distribute genetic material among the resulting daughter cells in very different ways. Mitosis creates two identical daughter cells that each contain the same number of chromosomes as their parent cell. In contrast, meiosis gives rise to four unique daughter cells, each of which has half the number of chromosomes as the parent cell.
PLEASE HELP ( I WILL MARK BRAINLIEST)
The skeletons of similar forelimbs arose due to similar function. These organisms, however, did not share a common ancestor. Which type of structures are
the foreimbs shown in the diagram?
the lungs and respiratory system work closely with the __ system to make sure oxygen reaches all the cells of our body
Answer:
circulatory system
Explanation:
Moons are natural satellites. They do not orbit the Sun directly. Instead, they move in an orbit around a celestial body, such as a planet. Which celestial bodies have one or more moons?
meteors
comets
dwarf planets
meteoroids
planets
mulitple choice
Answer:
dwarf planets
Explanation:
answer
A moon is to be a celestial body that makes an orbit around a planet, including the eight major planets, dwarf planets, and minor planets. ... Other than the four Galilean moons, Saturn's Titan and Neptune's Triton are two other moons which are comparable in size to the Earth's Moon.
the number of molecules of ATP produced from one molecule of glucose through glycolysis/oxidative phosphorylation is respectively
Answer:
Glycolysis is the answer
Answer:
Explanation:
Glycolysis starts with one molecule of glucose and ends with two pyruvate which is pyruvic acid. molecules and a total of four ATP molecules, and two molecules of NADH.
How many chromosomes are made by using a cell "c"
Answer:
In humans, each cell normally contains 23 pairs of chromosomes, for a total of 46. Twenty-two of these pairs, called autosomes, look the same in both males and females. The 23rd pair, the sex chromosomes, differ between males and females.
Explanation:
how are plants different from animals
A. plants don't need air
B. plants can make their own food
C. plants don't need energy
D. plants can live in many different habitat
Answer:
B. Plants can make their own good
Answer:
B. Plants can make their own food
Explanation:
Animals cannot make their own food they need to consume their food from other nutrients. Plants on the other hand can make their own food from a process called photosynthesis.
21) Highlight all the types of evidence scientists use to classify organisms
a. Fossils
b. Morphology
c. Genetics
d. Age
e. Sex (male or female)
f. Biochemistry (Protein similarities)
g. Cell structures/organization
h. Embryos
i. How they obtain food
True or false silicon is a solid at room temperature, but argon (Ar) is a gas.
True, silicon is a solid at room temperature, but argon (Ar) is a gas.
What is the relationship among force, mass, motion and speed of motion?
Does mutation decrease or increase genetic variation
Answer:
Mutations are changes to an organism's DNA and are an important driver of diversity in populations. Species evolve because of the accumulation of mutations that occur over time. ... This mutation has introduce a new allele into the population that increases genetic variation and may be passed on to the next generation