Answer:
The DNA enzyme helicase unzips the DNA strand so that one side can be used as a template to make a new strand. DNA polymerase is another enzyme that takes nucleotides from solution and bonds them to other nucleotides.
Which is the FALSE statement about Cl-?
A. It is a cation.
B. It is an anion.
C. It has gained an electron.
D. It has more electrons than protons.
Answer:
The answer is:
A. It is a cation
Hope this helps you out!
does evolution have any plan or it is random?
Answer:
evolution is random
Explanation:
there is no explination for evolution over time things find there own way to be better
Answer:
Evolution is random
Define the theory of evolution. In your definition, you must describe what part of evolution natural selection plays in.
30 pts
WILL GIVE BRAINLIEST
ASAP PLS
Evolution is when living things go through changes. This occurs through natural selection.
Answer:
The Theory of Evolution is the theory that states that organisms have changed gradually over a long period of time.
Natural selection process by which individuals that are better suited to their environment survive and reproduce most successfully; also called survival of the fittest.
Explanation:
What do euglenoids lack? cell walls chloroplasts contractile vacuoles eyespots
Answer:
Euglenoids lack a Cell wall
Explanation:
Euglena is a unicellular photosynthetic protista that can be found in both salt water and fresh water. As Euglena has chloroplasts they can produce their own food through photosynthesis. For their movement in water they have specialized structure called flagella. Near Flagella another pigmented spot exist called eyespot. Eyespot helps euglena to detect sunlight. Euglenoids lack cell wall so they have more flexibility for movement.
In humid subtropical climates, _____.
summers are hot with less rainfall than in the winter
winters are cold with more snow than rain
summers are hot with more rainfall than in the winter
there are no freezing temperatures or frost conditions
Answer:
D
Explanation:
In the rainforest, which is a humid subtropical climate, winter is non-existent because of how hot it is.
which type of biome is the most productive
Answer:
tropical rain forest
Explanation:
apax
which kingdoms are all organisms multicellular
Answer:
Eukarya
Explanation:
Please help I honestly think it’s between nucleic acids and proteins someone explain I’ll try to put lots of points and I’ll also like your answer and mark it best. Please answer if you are 100% sure
Answer: nucleic acids
Nucleic acids have information-carrying molecules of the cell, they determine the traits of an organism.
Answer:
proteins
Explanation:
because proteins is responsible for genes
What’s the frequency of rr genotype
The frequency of the "A" allele. Answer: Since q = 0.6, and p + q = 1, then p = 0.4; the frequency of A is by definition equal to p, so the answer is 40%. The frequencies of the genotypes "AA" and "Aa." Answer: The frequency of AA is equal to p2, and the frequency of Aa is equal to 2pq
A salt solution has a concentration of 200 g/L. How many grams of salt are contained in 500 mL of this solution?
Answer:
100g/500mL
Explanation:
1ml is .001 of 1 L
this means that per one ml, there is 200g*.001, or .2g/mL, or simply .2g.
now we multiply this by 500, for the 500ml we are calculating. 500*.2=100.
We can also skip these steps and take 200g*.5L, as 500mL is 1/2 liter. We get the same outcome, so the answer is 100g
The concentration of the salt solution can be calculated using the formula concentration = mass of solute / volume of solution. By substituting the given values, we find that there are 100 grams of salt contained in 500 mL of the solution.
Explanation:The concentration of a salt solution is given by the formula:
concentration = mass of solute / volume of solution
In this case, the concentration is 200 g/L and the volume of the solution is 500 mL. We need to convert the volume from mL to L:
500 mL = 500 / 1000 = 0.5 L.
Substituting the values into the formula:
200 g/L = mass of solute / 0.5 L.
Multiplying both sides of the equation by 0.5:
mass of solute = 200 g/L * 0.5 L = 100 g.
Therefore, there are 100 grams of salt contained in 500 mL of this solution.
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Questions 6-10 relate to the Digging the Fossil Record on the Smithsonian website. Each complete and correctly answered question is worth 2 points.
6. Where is your virtual dinosaur dig happening? Describe the conditions at the dig site.
7. Look at the pictures. What are the different tools used at a dig site and what are their uses?
8. What kind of animal did you uncover in your dinosaur dig?
9. How are fossils protected for transport?
10. After the dig, give the following information: When did it live and where was this specimen found?
Answer: 6. Where is your virtual dinosaur dig happening? Describe the conditions at the dig site.
It’s happening at the Judith River Formation in Montana. There are hills that are covered with rocks and gravel.
7. Look at the pictures. What are the different tools used at a dig site and what are their uses?
Hammers, the end of a broom, brushes, and pickaxes.
8. What kind of animal did you uncover in your dinosaur dig?
A ceratopsian dinosaur.
9. How are fossils protected for transport?
They are encased in field jackets made from burlap and plaster to protect them during transport.
10. After the dig, give the following information: When did it live and where was this specimen found?
This dinosaur lived in the Cretaceous Period, it was found in the Upper Cretaceous rocks of the Judith River Formation.
What type of organism utilizes photosynthesis to produce food?
A. Heterotrophs B. Frogs C. Autotrophs D. Sharks
Answer:
Autotrophs
Explanation:
Autotrophs.
I think this is it.
I hope this helps. Good luck
Protozoan infection definition
Protozoan infections are parasitic diseases caused by organisms formerly classified in the Kingdom Protozoa. They include organisms classified in Amoebozoa, Excavata, and Chromalveolata. Examples include Entamoeba histolytica, Plasmodium (some of which cause malaria), and Giardia lamblia.
A protozoan infection is caused by single-celled organisms called protozoa, which can be transmitted via vectors, contaminated food or water, or sexual contact. They often exist in a dormant cyst form outside the host and activate into trophozoites once inside. Examples include Giardia and Plasmodium species.
A protozoan infection is caused by protozoa, which are single-celled, animal-like organisms that belong to the kingdom Protista. These infections can be transmitted through various means such as vectors (insects or arthropods), contaminated food or water, or sexual contact. Protozoa often exist in a dormant stage called a cyst, allowing them to survive outside a host and facilitating their transmission.
Once inside the host, protozoa transition into their metabolically active form known as trophozoites, which feeds and multiplies. Common examples of protozoan pathogens include Giardia and Plasmodium species, which can cause serious health issues such as gastrointestinal illnesses and malaria, respectively. Diagnosis often involves microscopic examination of stool or biopsy specimens.
You are digging a hole in your backyard when you see a piece of fossilized bone in the dirt. How could you prove the age of the fossil? Design a procedure for determining the relative and absolute age of the bone.
Pls don't use copy and paste this from other sites or i will get an f for copyright
and brainiest if i get a good grade on it.
Answer: ok first you have to look at the clues or hints of what the given fossil and how many layers or solid Rock on it, now that is seen to go from the youngest to oldest age, we now know that you can design a procedure like a "Rock identification" based on what type of or rock it is for example lime stone this would tell you how far it goes back in time. Just identify the tpe of rock it is and then youll know that its that deep.
I hope this helps just wrote this from scratch for you :)
How have technological advances increase the carrying capacity of earth?
Answer:
Changes in technology modify the carrying capacity of a territory as irrigation and fertilisation in agriculture, for example shorter rotations between crops, which increases the number of people who can be fed from the resources of a given territory.
Explanation:
Carrying capacity is the maximum population of species that a particular habitat can support indefinitely under a given set of environmental conditions without depletion of resources in that habitat.Technology advancing has led to the increase of the earths carrying capacity due to various inventions in agriculture.For example the humans discovered that you would plant crops in a large area of land through planting of seeds and by watering them,weeding,protecting them from being eaten by other animals would ensure enough food supply. Inventions such as crop rotation and use of chemicals have led to increase in crop production since the invention ensures continued soil fertility.Machines to make work easier in the farming practices have also contributed to the increase in the carrying capacity for they make work easier increasing the rate of productionTherefore the earth is able to sustain a large population of people without resources becoming depleted.Final answer:
Technological advances have increased Earth's carrying capacity through improved food production and shelter, leading to exponential human population growth, but have also caused environmental issues that may threaten this capacity.
Explanation:
Technological advances have significantly increased the carrying capacity of Earth by developing more efficient methods of food production and engineering better quality shelters. For example, drilling for oil has provided energy to power agricultural machinery, which in turn has boosted food production. This increase in resource availability has allowed human populations to grow exponentially. However, while these technologies have expanded the Earth's carrying capacity, they've also led to environmental changes like ozone depletion, erosion from acid rain, and global climate change, which could potentially decrease the carrying capacity in the future.
which factor most strongly influences the kinds of plants that can grow in an area
Answer:
Tha climatic conditions , fertility ,rainfall,and climatic sunlight recurved
Explanation:
Please mark as BRAINLIESTAnswer: The factors such as rainfall, climate and temperature determines the type of vegetation growing there.
Explanation:
The type of vegetation is determined by the climate of the region. More and more rainfall favors the growth of trees that grows in rain.
The temperature of the region also contributes in this factor. The colder regions have different types of trees and the hotter places have different types of trees.
These are some of the important factors which determines the growth of plants in a region.
A single strand of DNA contains the following nine nucleotides in this order: ACT TAT GGA. What sequence of bases will be present on the complementary strand of DNA?
Answer:
The complementary DNA strand is as follows:
TGA ATA CCT
Hope this helps you out!
HELP ASAP PLEASE!!!! 20 Points
Match the exercise type with the correct term.
Swimming is considered a .
Sprinting for 30 seconds during a jog is a .
Running is a .
Short, high intensity segments are categorized as .
produce(s) less stress on the joints.
Options: Wind Sprint, Low Impact Exercise, High Impact Exercise
Answer:
Swimming is considered a
low impact exercise
.
Sprinting for 30 seconds during a jog is a
wind sprint
.
Running is a
high impact exercise
.
Short, high intensity segments are categorized as
wind sprints
.
Low impact exercise
produce(s) less stress on the joints.
Explanation:
100% on Odyssey PE 2021
Swimming is considered a low impact exercise, sprinting for 30 seconds during a jog is a wind sprint and running is a high impact exercise.
What is sprinting?Sprinting is a footrace over a short distance with an all-out or nearly all-out burst of speed, the chief distances being 100, 200, and 400 metres and 100, 220, and 440 yards.
Moreover, sprinting is an exercise that can help you build muscle mass and burn calories. As a result, potential benefits of sprinting training include improvements in speed, cardiovascular health, blood pressure, and blood sugar levels.
As sprinting is an anaerobic exercise, it helps in build muscles in the same way that weight training does. However, while weight training you focus on one body part at a time. Sprinting, on the other hand, uses dozens of muscles at the same time.
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The answer to the question I asked plz
Answer:
D
Explanation:
Releasing a new type of organism, genetically-modified or otherwise, can possibly damage the ecosystem, as seen by the invasive species brought to the Americas by the Europeans.
The _____ gland regulates the rate of body metabolism. thyroid hypothalamus parathyroid pancreas
Answer:
The thyroid gland regulates the rate of the body metabolism
Answer:
Thyroid
Explanation:
The thyroid gland releases triiodothyronine and thyroxine hormones that regulate the metabolic rate of the body. These thyroid hormones do not have specific target organs. These hormones stimulate the body cells to increase the rate of cellular respiration and thereby to increase the rate of breakdown of glucose to release energy.
The energy released is used for various functions and growth and development by cells. Hence, the thyroid gland regulates the metabolic rate by increasing the rate of cellular respiration.
Phospholipids are important components of __________.
the plasma membrane:)
Phospholipids are important components of cell membranes and lipoproteins. They form a bilayer structure that protects the contents of the cell and regulates the movement of substances in and out of the cell.
Explanation:Phospholipids are important components of cell membranes. They form a phospholipid bilayer that surrounds and protects the contents of the cell, while also regulating the movement of substances in and out of the cell.
The structure of phospholipids consists of a hydrophilic (water-loving) head and a hydrophobic (water-repelling) tail. This unique structure allows phospholipids to arrange themselves in a bilayer, with the hydrophobic tails facing inward and the hydrophilic heads facing outward.
In addition to cell membranes, phospholipids are also found in lipoproteins, which transport fats and cholesterol in the bloodstream.
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astralia is surrounded by water with climate change it is at risk of?
Answer:
As earth’s temperatures increase with climate change, the polar ice caps melt and the sea levels rise, leaving islands like Australia at risk of flooding and partial, permanent underwater submersion.
Where does stress build up and eventually release within a fault?
Answer:
Across the surface of the fault.
Explanation:
In the event of a fault, the rocks do not disintegrate immediately. Instead friction generated between the surfaces of a fault hold the rocks together.
The forces separating the rocks builds and accumulates stress over time on the surfaces of the fault until they let go.
The sudden slip of the rocks is what causes the shaking of the earths surface that is refereed to as earthquake.
When you overfill your glass with water and there’s a slight bulge at the top of the glass, you are witnessing the _____ property of water. Adhesive, cohesive, expansive.
Answer:
adhesive
Explanation:
the water sticks to the glass because of surface tension
Answer: Adhesive
Because the water is sticking with the other water in the cup. The water in the cup is making the rest of the water get pulled down by the tension.
9. Referring to Figure 2-1, energy flows from
a. coyotes to grasses
b. cats to mice
c. mice to cats
d. coyotes to cats
C. Mice to cats because cats eat mice
Answer:The answer would be mice to cats
Explanation:I really don't have an explanation though.
Conservation groups are concerned with wild animal populations so they have pressured governments to create laws to protect them. Which example does NOT protect animal species?
A) whaling
B) fishing limits
C) hunting seasons
Eliminate
D) endangered species act
Answer: A
Explanation:
Whaling is the practice or industry of hunting and killing whales for their oil, meat, or whalebone.
Answer:
A
Explanation: The reason for this is all of the other answer are examples of how to protect these animals such as get rid of hunting season while a does not.
Which disorder is created as a result of the final chromosomal change that is shown
Answer:
Robertsonian translocation.
Explanation:
the disorder created as a result of the final chromosomal change that is shown is Robertsonian translocation. Translocation is one of the mutation that happens in chromosomes.
Robertsonian translocation
Choose all the answers that apply.
The greenhouse effect is:
slowly increasing global temperature
caused when atmospheric gases trap heat
melting the polar ice caps
slowly increasing sea levels
increasing because of carbon dioxide emissions
increase because of carbon
Answer:
A, C, D
Explanation:
What is typically responsible for forming volcanic island chains in the oceans?
Answer:
Explanation:
The bottom of the sea floor is filled with hot spots, where magma from the Earth's interior presses the surface of the sea floor, forming volcanoes. These volcanoes in the maritime soil erupt and, over millions of years, they expel lava, which accumulates and, as it passes the water line, forms an island
Answer: Hot spot volcanism is typically responsible for forming volcanic island chains in the oceans.
Explanation:
when placed into a solution that is 30% water an 70% salt, what would happen to a cell that has a 70% water concentraion?
Answer:
how
Explanation:
In a hypertonic solution like 70% salt, a cell with 70% water concentration would lose water due to osmosis. This would cause the cell to shrink or crenate.
Explanation:When a cell that has a 70% water concentration is placed into a solution that is 70% salt and 30% water, the surrounding solution is considered hypertonic relative to the cell's interior. This means the environment outside the cell has a higher solute (salt) concentration than inside the cell. According to the principle of osmosis, water will naturally move from an area of lower solute concentration to an area of higher solute concentration in attempt to reach equilibrium. Consequently, water will move out of the cell and into the solution, causing the cell to lose water and shrink or crenate.
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