Answer:
Hydrothermal vents
Explanation:
At the time of life's origin, the early ocean was acidic and filled with positively charged protons, while the deep-sea vents spewed out bitter alkaline fluid, which is rich in negatively charged hydroxide ions.
Answer:
D) hydrothermal vent life origin
Explanation:
i got it right on usatestprep!
Plant Structure and Function Lab
Title: Plant Structure and Function Lab
Objective(s):
After doing this lab, you should be able to:
Identify the correct plant tissues from the corresponding slides.
Identify the different structures of a flower.
Describe the functions of each flower structure.
Describe the functions of each plant tissue.
Answer the Analysis and Conclusion questions using multiple sentences.
Materials:
Flower
Scissors
Tape
Tweezers
Lab Report
Procedure:
Plant Tissues — Part 1
Review each image in your lab activity slide show. Identify the correct tissue or organ below based on each individual slide. Several of these choices may be used multiple times.
phloem
stoma
xylem
guard cells
dermal
ground
vascular
Slide 1 Slide 2 Slide 3 Slide 4 Slide 5
a. a. a. a. a.
b. b. b. b. b.
c. c. c.
d.
Flower Dissection — Part 2
Pick a flower from your yard, a public location, or somewhere in your neighborhood.
Start by removing the sepals of the flower with a tweezer. If you do not have a tweezer, a small pair of scissors will also work. It may be easiest to do this if you hold the flower with your finger from below the pedicel (small stalk just underneath the flower) and begin to remove the sepals with a pair of tweezers.
Using tweezers, place the sepals on the labelled printable worksheet, and tape them in place.
Repeat the same procedure for the petals and pistil.
Remove all but one of the stamens and tape them onto the worksheet.
On your printable worksheet, you should have sepals, petals, stamens and one pistil.
Take a picture of your worksheet with the flower pieces placed correctly, and save it on your computer. You will attach and submit this with your assessment questions.
Data:
Flower Dissection
Name of Flower Component Piece of Flower from Lab Function
Sepal
Petals
Stamen
Pistil
Analysis & Conclusion — Part 3
Plant Tissues
What are three characteristics that all species belonging to the plant kingdom have in common?
How will the numbers of stomata differ in tropical plants and desert plants? How does this help protect the health of a plant?
If a plant's xylem and phloem become damaged, what type of damage will result within the plant? Describe the different roles on the xylem and phloem in your answer.
Why do we compare the dermal tissue of plants to human skin? Explain your answer.
Would a plant be able to survive if the ground tissue was damaged? Explain your answer.
Flowering Reproduction
Describe how flowering plants reproduce.
How do flowers help other organisms in our environment?
Which parts of a plant are responsible for reproduction? Describe the role that each of them will play.
Describe what occurs during the process of seed development.
Based on your knowledge of flowers, why do you think most flowers are bright in color?
Flowering plants under se-xual reproduction and produces seeds which from which new plants are produced.
What are plants?Plants refers to a large group of organisms belonging to the kingdom Plantae which are mostly green and whose mode of nutrition is autotrophic.
Plants store sugars as starch as use sunlight as an energy source.
Plants in different habitats show adaptations to their habitats.
For example desert plants have few stigmata compared to tropical plants on order to conserve water.
The dermal tissue of plants help to protect them from mechanical injury.
Plants can be grouped as either flowering or nonflowering.
Flowering plants undergo se-xual reproduction and produces seeds which from which new plants are produced.
Learn more about plants at: https://brainly.com/question/29594
Answer: no offense but its hard to cheat for these labs let alone with 5 points but its an easy lab just do it
Explanation:
In an
ecosystem, energy is transferred from one organism to another. Which of the
following best shows the transfer of energy among organisms in an ecosystem's
food web?
A. omnivore carnivore - herbivore → - producer
B. producer – herbivore - carnivore decomposer
-
C. producer – decompoder herbivore — Omnivore
D. carnivore ——herbivore decomposer —> omnivore
-
Answer:
producer – herbivore - carnivore decomposer.Explanation:
hope it helps you<3is it possible for humans to be the size of molecules and become a liquid if there are enough humans? like if i had enough molecule sized humans would they make a soup or
Im sorry i was just wondering (I am not a cannibal)
Answer: If humans were the size of molecules, I suppose they could make a soup, but it would depend on how the people connect/combine on a molecular level.
Explanation: Also, what kind of question is this?
How does the cell cycle play into organ donation?
Answer:
Steps in the process are as follows:
1. Identification of the Potential Donor by the Hospital. ...
2. Evaluation of Donor Eligibility. ...
3. Authorization for Organ Recovery. ...
4. Medical Maintenance of the Patient. ...
5. Matching Organs to Potential Recipients. ...
6. Offering Organs Regionally, Then Nationally. ...
7. Placing Organs and Coordinating Recovery.
which of the 4 macromolecules consist of a variety of units and can be divided into 2 classes?? Helpp!!
Answer:
The 4 macromolecules are nucleic acids, carbohydrates, proteins, and lipids.
structure: Carbohydrates, lipid, and protein
Function: Nucleic acids, Carbohydrates, Lipid, and Protein
Explanation:
An organism whose niche involves breaking down things that are dead and decaying as food is known as ________.
A. a producer
B. either a consumer or decomposer
C. a decomposer
D. a consumer
Answer:
C
Explanation:
(Filling space requirements)
What is the definition of Limiting Factor in your own words?
Answer:
Something that limits or prevents a population from expanding
Explanation:
I hope i helped
is a nonvascular plant because it lacks xylem and phloem.
Answer:
The answer is moss, just did the test:)
Explanation:
have a wonderful day.
Bye
1.Stomata are:______
A)pores in plant cells
B)pores on the leaves of a plant
C)photosynthetic organ
D)none of the above
2.Blue black coloration on leaves during test for photosynthesis is_________
A)confirmation of release of oxygen
B)confirmation of carbohydrate formation
C)confirmation of the formation of Water molecules
D)None of the above
Answer:
1) b - pores on the leaves of a plant
2) d - none of the above
Explanation:
1) Stomata are pores on the leaves of a plant that help in taking in carbon dioxide and give out oxygen.
2) Blue black coloration on leaves during test for photosynthesis is used to indicate the presence of starch in leaves.
Which of the following are subatomic particles? Select all that apply.
A. Gas
B. Elements
C. Protons
D. Electrons
E. Mixtures
F. Neutrons
Answer:
Protons, Electrons, and Neutrons are what atoms are made of. Therefore, they're subatomic (smaller than atom) particles.
Why is the making of sedimentary rock a physical change? Explain your own answer no goo9le plss
Answer:
The formation of sedimentary rocks is indeed a physical change because we are only changing the physical structure of the rock/rocks by compacting them together, they're still rocks.
Explanation:
Remember that physical changes are when you are only changing a physical characteristic of an object. A common example of a physical change would be breaking a piece of wood. Even though the wood is now smaller, and its physical appearance has changed, the wood is still wood.
Sedimentary rocks are formed by compaction, where many rocks are compacted together, and the pressure causes all the rocks to form together into one big rock.
Sedimentary rocks are formed by many different rocks, which means they are still rocks, but they are now compacted together to form one bigger rock. "The formation of sedimentary rocks is indeed a physical change because we are only changing the physical structure of the rock/rocks by compacting them together, they're still rocks."
Hope this helps.
would would would would would would would would would would would would would
What is the half life for the mercury sample?
A
48 days
B
150 days
C
200 days
D
80 days
Answer:
A
Explanation:
Since the chart is around 48 when at 50%.
An organism that contains genes from another organism of a different species is a ? Check all that apply
A. Complimentary Organism
B. GMO
C. Mutant
D. Transgenic Organism
E. Translated Organism
Most enzymes in the human body work best at 37C (98.6F). When you get sick, sometimes you get a fever, what do you think this means for your enzymes?
Answer:
Because enzymes are denatured by heat, fevers can cause changes in enzymatic structure and shape. If your fever is high enough to fully denature your enzymes, this can lead to death by preventing your enzymes from catalyzing necessary reactions.
Hope this helps :D
How do static charges interact, and how are they released?
9. What would need to change in order for the organism population in the example to continue
growing?
Answer:
If a population is given unlimited amounts of resources, such as food and water, land if needed, moisture, oxygen, and other environmental factors, it will grow exponentially. Exponential growth occurs as a population grows larger, dramatically increasing the growth rate.
What is a null hypothesis?
A. a hypothesis stating that there is no
relationship between the independent and
dependent variable
B. a hypothesis stating that there is a positive
correlation between data sets
C. a hypothesis stating that there is a negative
relationship between the data and the expected
values
D. a hypothesis that is rewritten from the
original after an experiment is ran
( acellus academy )
Answer:
A
Explanation:
a hypothesis stating that there is no relationship between the independent and dependent variable.
(ANSWER)
what is mutuation in biology
Answer:
any change in the nucleitide sequence because of failure in the system.
Explanation:
im in bio class lol but uh this is a definition that can be searched
Answer:
A mutation occurs when a DNA gene is damaged or changed in such a way as to alter the genetic message carried by that gene.
Explanation:
Select the correct locations on the image.
A high gradient in air temperature and pressure can cause a jet stream, characterized by high-speed winds. Through which marked regions
would jet streams pass?
Polar cell
609
Ferrel cell
30
رررررد
Hadley cell
Hadley cell
Answer:
all boxes on the black lines
Explanation:
there's 4 boxes you should have selected i just took the same test
When you mix the primary colors of light, you produce the color:
a. yellow
b. green
c. white
d. black
Answer: White
Explanation: when all 3 of the primary colors are mixed you get a white light
1) You have an electropherogram with a clean, three-locus profile:
STR locus #1 is 10, 14
STR locus #2 is 30 (only)
STR locus #3 is 3, 6
What is the random match probability of this profile? Fill in the blank:
"Approximately one in every
people, drawn randomly from the human
population, would be expected to have this three-locus profile.
Following the product probability rule and assuming independence among loci, the random match probability of this three-locus profile is 0.000853. See below the procedure for question number 2.
What does the product probability rule state?The product probability rule allows us to calcuate the probability of occurrence of two or more events at the same time. It is about a joint probability of two or more events that might happen simultaneously, not excluding each other.
This rule is based on the dependence or independence of the events. Two events, A and B, are independent of each other if one of them does not affect the occurrence of the other one.
The rule establishes that the occurrence probability of two independent events -A and B- together is the multiplication product of the probability of occurring A by the probability of occurring B.
P(A∩B) = P(A) x P(B)
In the exposed example,
STR locus #1 has three alleles → 10, 11, 14STR locus #2 has four alleles → 27, 28, 28.2, 30STR locus #3 has three alleles → 3, 6, 7The frequency of each allele is detailed in the table.
According to the electropherogram, the profiles are
STR locus #1 → 10, 14 → Heter0zyg0usSTR locus #2 → 30 → H0m0zyg0usSTR locus #3 → 3, 6 → Heter0zyg0usKnowing the allele frequencies, we can get the genotypic frequencies,
Locus Allele frequency Genotypic frequency
STR locus #1
10 0.22 2xpxq = 2 x 0.22 x 0.18 = 0.079
14 0.18
----------------------------------------------------------------------------------------------------
STR locus #2
30 0.22 p² = 0.22² = 0.048
----------------------------------------------------------------------------------------------------
STR locus #3
3 0.45 2xpxq = 2 x 0.45 x 0.25 = 0.225
3 0.25
----------------------------------------------------------------------------------------------------
So, the probability, P, of getting these genotypes are,
P ₍₁₀₋₁₄₎ = 0.079P₍₃₀₋₃₀₎ = 0.048P₍₃₋₆₎ = 0.225The random match probability of this profile is the probability of getting the three genotypes together.
Following the product probability rule and assuming that loci are independent from each other, the profile probability, PP, is
PP = P₍₁₎ x P₍₂₎ x P₍₃₎ x .... P₍ₙ₎
PP = (P₍₁₀₋₁₄₎ ) (P₍₃₀₋₃₀₎) (P₍₃₋₆₎)
PP = 0.079 x 0.048 x 0.225
PP = 0.000853
The random match probability of this three-locus profile is 0.000853.
To fill in the blank, you need to consider the population size -N- and the probability of getting this three-locus profile.
Since I do not have the total number of individuals in the population, I will say that my population size, N = 500 individuals and I will make the calcs according to this number. You should follow the same procedure but use your N.
We know that the probability of getting this three-locus profile is 0.000853. This is the frequency of individuals carrying this genotype in the population.
To get the number of individuals with this genotype in the population, we need to multiply this frequency by the total number of individuals, N.
Nº of individuals with the three-locus profile = frequency x N
Nº of individuals with the three-locus profile = 0.000853 x 500
Nº of individuals with the three-locus profile = 0.4265 individuals.
Now we know that in a population of 500 individuals, there are 0.4265 individuals with the three-locus profile. Now we need to know the population size in which we can find 1 individual with this genotype.
0.4265 individuals with the three-locus profile-------- 500 individuals
1 individual -------------------------- X = (1 x 500) / 0.4265 = 1,172.33 individuals.
According to these calculations, approximately one in every 1,172.33 individuals, drawn randomly from the population, would be expected to have this three-locus profile.
Note: Remember to use the population size provided to you in this problem. The procedure is the same, but the population size -N- will be different.
You will learn more about probability rule at
https://brainly.com/question/14399918
https://brainly.com/question/797141
https://brainly.com/question/333419
What happens during cytokinesis?
Question 5 options:
Chromosomes split apart into two sets.
Cytoplasm divides in two.
Cells grow larger and make a copy of the chromosomes.
Mitosis
Answer:
The cytoplasm divides in two
Explanation:
Answer:
Explanation:
B
What is the height and length of a arctic tern?
Answer:
The Arctic tern is a medium-sized bird around 33–36 cm (13–14 in) from the tip of its beak to the tip of its tail. The wingspan is 76–85 cm (30–33 in). The weight is 86–127 g (3.0–4.5 oz.).
Explanation:
Discribe the flora of newborn
Answer:
flora tge new born is beutiful
Dave is planning to build an electric power station to supply electricity to his community. To help him decide which type of electric power station to build, he has put together the table below, which summarizes some of the advantages and disadvantages associated with different technologies.
Power Technology Advantage Disadvantage
hydroelectric no greenhouse gas emissions upsets natural ecosystems
coal inexpensive releases greenhouse gases and other pollutants
wind no greenhouse gas emissions can't always supply electricity when it's needed
solar no greenhouse gas emissions expensive to build, install, and replace
natural gas easily supplies electricity when it's needed releases greenhouse gases and other pollutants
If Dave wants to use a technology that does not directly impact climate, which of the above technologies should he consider?
A.
coal, wind, and natural gas
B.
solar, wind, and natural gas
C.
hydroelectric, coal, and solar
D.
hydroelectric, wind, and solar
answer is
D.
hydroelectric, wind, and solar
Answer: The correct answer to this question is D: hydroelectric, wind, and solar energies.
Explanation: These energy sources do not directly impact climate because they don't give out any harmful pollutants or gases.
Answer: The answer is hydroelectric, wind, and solar
Explanation:
Energy from an earthquake travels
A.
fastest through the gases of Earth's atmosphere.
B.
as light waves that warm the rock underground.
C.
as seismic waves that cause matter to vibrate.
D.
at the same speed through solids, liquids, and gases.
Reset
Answer:
Energy from an earthquake travels: C. as seismic waves that cause matter to vibrate.
Explanation:
The energy of an earthquake travels in the form of waves. These waves are referred to as seismic or earthquake waves. Earthquake waves are classified into two types: body waves and surface waves. Body waves move through the Earth's interior, whereas surface waves travel along the Earth's surface.
Expain why the lettuce irrigated with a mixture of water and fertilizers grows on gravel
The reproductive system in both males and females are controlled and regulated by the interaction of hormones from the hypothalamus and pituitary glands with hormones from the reproductive organs. How do these hormones affect the development of male and female reproductive systems? (Provide an answer of minimum of 25 words)
How do these hormones affect the development of male and female reproductive systems?
➪ These harmones help both male and female to develop sexual characteristics and play an important role in menstrual cycle, fertility and pregnancy in females. In males, these hormones help make sperm in testes...
A student uses a pulley to lift a bucket. The pulley does not work well. Which solution will decrease the amount of friction on the pulley?
Answer:
a second pulley.
Explanation: