Answer:
B
Explanation:
Atoms are smaller than molecules, then the tissue comes before the organ
"Whenever two objects come into contact, there is always a transfer of material demonstrates which
principle?
a. Daubert principle
b. Frey principle
Locard's principle
d. Holmes principle
c.
Answer: It is the Locard's principle.
:)
The machine that removes small plants from plug trays and transplants them
directly to pots is called which of the following?
a. automated seeder
b. automated pot filler
c. automated transplanter
d. automated plugger
Answer:
anwser is
C. automatic transplanterhope it helpedPlease help I’ll mark you as brainliest if correct! #2
Answer:
Tt
Explanation:
Hello. I believe that you are only referring to question 2, since question 3 does not present all the answer options. As such, the offspring of a cross between a tall pea plant (TT) and a low pea plant (tt) would be completely "Tt."
To achieve this result, you must make a Punnett Square, which is a frame that allows you to combine the alleles of the parents in a cross to project the alleles of the offspring.
Alleles are those characterized by the letters associated with characteristics. As you saw in the question above, tall pea plants have "TT" alleles that are dominant alleles, while low pea plants have "tt" alleles that are recessive alleles. In this case, to use Punnett Square, you must put the alleles of one parent in the first row and the allele of the other parent in the first column. Then just combine each allele, as shown below:
T T
t Tt Tt
t Tt Tt
As you can see all the offspring will have the "Tt" alleles. This means that the entire offspring will be tall pea plants. This is because the recessive allele "t", which is related to pea plants, can only be expressed in the presence of another recessive allele. However, the dominant "T" allele, which is associated with tall pea plants, can be expressed in any situation.
In a diagram of a food chain where does a producer such as a tree get the beefy it needs to survive?
Answer:
from the sun
Explanation:
producers get light energy from the sun
Answer: a producer such as a tree would get its energy/food from the process of photosynthesis.
Explanation:
Which list shows the steps by which surface water can become groundwater?
A. Zone of saturation → zone of aeration → precipitation
B. Precipitation → zone of aeration → zone of saturation
C. Zone of aeration → zone of saturation → precipitation
D. Zone of saturation → precipitation → zone of aeration
The steps by which surface water can become groundwater
B. Precipitation → zone of aeration → zone of saturation.
What is Groundwater?
Groundwater is the reservoir of water this water accumulates in the ground surface or subsurface of the earth's crust through tiny pores and fractures in the rocks.
The source of water are streams of rivers, oceans, lakes and large depositing is because of water from the rain and melting of the snow. It is a source of freshwater in nature.
Thus, option "B" is correct.
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To become or stay physically fit, you should exercise and eat healthy.
O A. True
B. False
Which event might disrupt a stable ecosystem?
A
Green plants use chlorophyll to produce food.
B
An invasive species enters the environment.
Consumers eat producers.
D
Predators kill prey.
Answer:
An invasive species enters the environment.
Explanation:
All other answers already naturally happen in an environment so they are stable. But if an invasive species enters, the ecosystem will be less stable because invasive species dominate ecosystems which isn't natural to the animals that live there. So for example, if someone introduced an invasive species to the ecosystem, it can cause many changes like if it was a predator, there'll be less primary consumers (the animals that eat plants) because the invasive species isn't natural to them.
Answer:
B
Explanation:
An invasive species enters the environment is the correct answer.
Which nutrients do plants need in larger quantities?
micronutrients
or
macronutrients
Answer:
macronutrients
Explanation:
macronutrients are important for growing plants. the main macronutrients are nitrogen, Potassium, and phosphorus.
Answer:
The second answer.
Explanation:
Which of the following functions in multicellular organisms is similar to the function of DNA in unicellular organisms?
A.
Inheritance of traits
B.
Cell respiration
C.
Cell digestion
D.
Protein synthesis
A. Inheritance of traits
Both single and multi-celled organisms embrace a functional unit of life, known as “Cells”. Both of them consist of plasma membrane and cytoplasm. They carry similar features by containing DNA and ribosomes for the gene expression. All known forms of life store their genetic information using DNA, and with a few exceptions the code is universal.Both have basic unit of life (cell). Which means they both ingest food ,respire, and get rid of waste.Multicellular organisms are bigger than unicellular organisms. Unicellular has a single cell but multicellular have more than one cell.Thus, option A is correct.
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What hormones stimulate the cycle of egg or sperm production?
Answer: The main reproductive hormones are estrogen and testosterone. Once a girl enters puberty, estrogen matures the eggs in the ovaries. These are then released at regular intervals during the menstrual cycle. Testosterone stimulates the production of sperm in men.
Explanation:
The original source of new alleles, upon which selection operates, is mutation, a random event that occurs without regard to selectional value in the organism. Although many model organisms have been used to study mutational events in populations, some investigators have developed abiotic molecular models. Soll et al. (2006. Genetics 175: 267-275) examined one such model to study the relationship between both deleterious and advantageous mutations and population size in a ligase molecule composed of RNA (a ribozyme). Soll found that the smaller the population of molecules, the more likely it was that not only deleterious mutations but also advantageous mutations would disappear. Why would population size influence the survival of both types of mutations (deleterious and advantageous) in populations
Answer:
Sampling error may allow fixation of one form and the elimination of others in a small population.
Explanation:
It can be seen that in case of a small population size, there are high chances of the elimination or the fixation of the allele in the population when compared to the large population size. Also sampling errors are found in case of small population size that leads to the enhancement of the chances for fixation and also for the elimination of the allele. This large size population doe not have much effect. The random fixation of the either selective allele or the elimination of the disadvantageous allele occurs due to the genetic drift.
SO in order for the population size influenced the survival of both types of mutations , the sampling error may be allowed for the fixation of one of the form and the elimination of the other forms in the small population size.
I’m struggling with this practice problem help
Answer:
it think it C ^^^^^^^^^^^^
How does this affect the change?
Answer: B. It sped up evolutionary change by increasing genetic variation.
Explanation:
Evolution works when organisms with genes that are better suited to the environment pass on their genes to future generations.
Sexual reproduction sped up this process because it allowed for genetic variation as genes from the two mates would be passed on the next generation instead of one organism as had been the case with asexual production.
With genes from both mates mixing up and going into the next generation, more genetic variations were produced which allowed for the organisms to better adapt to the environment.
Why is global warning considered a controversial issue?
answer: The global warming controversy concerns the public debate over whether global warming is occurring, how much has occurred in modern times, what has caused it, what its effects will be, whether any action can or should be taken to curb it, and if so what that action should be. In the scientific literature, there is a strong consensus that global surface temperatures have increased in recent decades and that the trend is caused by human-induced emissions of greenhouse gases.[1][2][3][4][5][6] No scientific body of national or international standing disagrees with this view,[7] though a few organizations with members in extractive industries hold non-committal positions,[8] and some have attempted to convince the public that climate change is not happening, or if the climate is changing it is not because of human influence,[9] attempting to sow doubt in the scientific consensus.
Explain why atp is important in biochemical reactions
Answer:
ATP releases energy (ATP + H2O --> ADP + P + energy) and in order for things like active transport to happen ATP is required.
A scientist wants to determine whether a mutant phenotype is due to the loss of gene C or gene D, which are both deleted in a mutant fly with abnormal eyes. Mutant flies with that have a transgenic gene C have wild-type eyes, whereas mutant flies that have a transgenic gene D have abnormal eyes. What can be concluded from these results
Answer:
a transgenic copy of the gene C is sufficient to restore normal eye development
Explanation:
In genetics, there are diverse approaches to determining a gene's function. For example, it is possible to use a complementation test to determine loss-of-function recessive mutations when it is unknown if such mutations fall in the same or in different genes. Similarly to the generation of loss-of-function phenotypes, it is possible to insert a gene and thus produce a gain-of-function mutation that restores normal gene function (i.e., to restore the wild phenotype). Moreover, transgenic organisms refer to genetic engineering techniques by which any foreign or modified gene is inserted in the genome of an organism, which can also be used to study gene function. In this case, the restoration of the normal phenotype (wild-type eyes) is associated with the expression of the transgenic gene C, thereby evidencing that the gene C is required for normal eye development. In the last years, transgenic models have shed light on developmental pathways and on gene function.
which two processes indicate that water is gaining thermal energy
A. evaporating
B. condensing
C. freezing
D. boiling
Answer:
A. evaporating, D. boiling
Explanation:
Condensation, deposition, and freezing are processes that occur as a result of a decrease in the heat energy of water particles.
What farming practices have depleted grasslands in North America?
Answer:
Cultivation of crops and tillage practices.
Explanation:
Farming of crops and tillage practices on the grasslands depleted grassland that are present across North America because the lands are converted and used for the production of food crops in order to fulfill the feed the existing population. More and more land is converted from grassland to the cultivation of crops that leads to lower area for the grazing of animals which results in decrease population of animals such as sheep, goat and cow etc which depends n these grazing regions for food.
I really need help please somebody...
Answer:
first choice: 25%
Explanation:
when crossing Aa x aa, there is a 25% chance that the outcome will be Aa, giving the resulting cattle offspring horns. Hope this helps!
A scanning electron microscope is a type of light microscopes that has more than one lens
True
False
Answer:
true
Explanation:
the condenser lens is the size of the electron beam and the main objective lens is to focus the beam on the sample
so that scanning electron microscope have two projector lens
sorry if its not correct
Please hurry I need the right answer and I will give brainliest for the right answer no alien talk or file
Answer:
grasshopper
The organisms that eat the producers are the primary consumers. ... The primary consumers are herbivores (vegetarians
Individuals in a population of purple people earters are polymorphic at a single locus that leads to variation in purple people eater pup viability. 45% of the pups with genotype PP are viable, 54% of pups with genotype Pp are viable, but only 4% of pups with genotype pp are viable. What model of natural selection best fits these data
Answer:
The correct answer is - overdominance.
Explanation:
In the given question, genotype Pp is a heterozygote condition that has a 54% survival rate or fitness thus these individual people get more chance of mating and increase in number as compared to the other two conditions of PP or pp traits where PP has 45% survivability, less than heterozygous condition and more than pp that has only 4% rate.
It results in a normalizing selection model of natural selection as a moderate trait, that is heterozygote, is selected. Thus, the selection of overdominance which means heterozygote condition produces a better phenotype than PP or pp parents is heterosis.
Give three examples of what happens with unbalanced forces? I give Brainly
Please and thank you!
Answer:
A gene mutation
Explanation:
DNA nucleotide sequence is unique
Plants have structures which affect reproduction rates in plants.
A. True
B. False
Answer:
i think it is false
Explanation:
i could be wrong
state three features of myriapods that can be used to distinguish them from other arthropods
Answer:
Mandibles (lower jaw) and maxillae (upper jaw)
Two body sections (head and trunk)
One pair of antennae on the head
Explanation:
hope this helps! have a great day / night
Although Myriapods share many characteristics with other arthropods, they distinguish for having an elongated and multisegmented body, one or two pairs of legs per segment, two antennae, and rolling-up ability
----------------------------------------
As the name refers to, Myriapods have many feet. They characterize because their bodies are very elongated and divided into multiple segments. From each of the rings, emerge one or two pairs of legs.
As every arthropod, their bodies are segmented and covered by a cuticle for protection and to avoid dehydration.
Their heads carry two antennae, ocellus, and a mouth with prominent buccal appendixes. Some of them might be poisonous.
They can be slow when moving, but they are well-adapted to move through leaves and other organic material. But because they move slowly, they need a protection strategy to avoid predation. This strategy is rolling. They can roll up, and remaining like a boll, until the predator leaves.
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Soooo... anyone have an essay on the impact of climate change on the oceans they’d like to share?? :)
I need ideas!!!
Answer:
Here's a paragraph that you can add !
Explanation:
When greenhouse gases capture more solar radiation, the oceans consume more heat, resulting in higher sea surface temperatures and increasing sea level. Changes in water temperatures and tides caused by climate change will cause changes in global climate patterns.
You burn a log on a fire. You use the fire to warm yourself and to light up the
room to read a book. Which energy transformation is taking place?
A. Chemical energy is transformed to nuclear energy and thermal
energy
B. Chemical energy is transformed to light energy and thermal
energy
C. Thermal energy is transformed to light energy and chemical
energy
D. Nuclear energy is transformed to potential energy and thermal
energy.
Answer:
b) is the the answer
Explanation:
hope it helps
which layer is the youngest in this image?
Phenylketonuria causes a severe cognitive disability due to the inability to metabolize phenylalanine. It is an autosomal recessive disorder. About one in 12,000 newborns in Massachusetts are afflicted with the disease, skewed higher than the general US population due to more Irish-Americans. Assuming the gene is in Hardy-Weinberg equilibrium, the frequency of the carriers (heterozygotes) in Massachusetts would be calculated to be...
Answer:
The frequency of the carriers (heterozygotes) in Massachusetts is 0.018
Explanation:
Due to technical problems, you will find the complete explanation in the attached files