Answer:
Carbon dioxide
Answer:
Carbon Dioxide
Explanation:
“Fish and other wildlife become unhealthy and die without __________.”
Oxygen
Carbon Dioxide
Eutrophication
(This is 7th grade science)
Answer:
Oxygen
Explanation:
1) How many people is AIDS (the disease caused by HIV) responsible for killing?
Answer:
770000
Explanation:
Answer:
30 million people
Explanation:
Since the epidemic began, more than 60 million people have been infected with the virus and nearly 30 million people have died of HIV-related causes. Nearly 13,000 people with AIDS in the United States die each year. Engagement in care: AIDS-related deaths occur when people who are infected do not receive the testing, treatment and care they need.
When humans breed organisms, they are selecting variations that occur naturally in populations.
True or false ?
Answer:
TRUE!!!
Explanation:
Artificial selection, often known as "selective breeding," is when people choose animals or agricultural products based on desirable features, hence it is a true statement.
What is Artificial selection?Different phenotypes can be introduced into an organism via genetic changes that change gene activity or protein function.
Natural selection is the process of identifying advantageous traits in plants and animals and taking actions to improve and perpetuate those traits in subsequent generations.
If a trait is advantageous and aids an individual in surviving and reproducing, the genetic variation is more likely to be passed to the next generation.
Therefore as opposed to letting the species evolve naturally without human intervention, as in the natural selection, hence it is a true statement.
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A cactus with the genotype Kkww is crossed with a cactus with the genotype KKWw. Which of the following genotypes will be shared by 25% of the offspring?
A. KKWW
B. kkWw
C. KKww
D. KkWW
Answer: C
Explanation: Think of it this way, which ever has the most is what answer would be. So they come across 3 capitals with K its gonna be KK not kk.
Hope this helps
The genotype is defined as the genetic makeup of an organism, or the set of alleles. The cross between Kkww and KKWw will result in 25% of the progeny having genotype KKww.
The correct option is:
Option C. KKww
Find the attachment for the Punnett square, given below.
The cross between Kkww and KKWw will result in the gametes as:
Kkww - Kw, Kw, kw, kwKKWw - KW, Kw, Kw, kwThe progeny having genotype as KKww will be 4 or 25%.
Therefore, Option C is correct.
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How are viruses different from bacteria?
Answer:
A.
Explanation:
In a series of rock layers, where do you find the oldest layers? Explain why?
Your answer
Please helppp meh!!
Answer:bottom
Explanation:
You added 20 g of NaCl to 100 g of water. What is the percent by mass of the solute?
Answer: We are given:
Mass of solvent (water) = 100 grams
Mass of solute (NaCl) = 20 grams
Mass of the Solution:
Mass of Solution = Mass of Solute + mass of Solvent
100 + 20 = 120 grams
Mass Percent of NaCl:
We know that
mass percent of NaCl = (Mass of NaCl / Mass of Solution) * 100
replacing the variables
Mass% of NaCl = (20 / 120)*100
Mass% of NaCl = 100 / 6
Mass% of NaCl = 16.67%
Explanation:
Osmosis is important to cells because _______ *
a. cells contain fluids that are mostly water
b. cells are filled with fluids that are mostly sugar
c. cells need to be kept cool
d. cells need food
Gravitational force multiple choice
Answer:
Option B. The force would be quartered (factor of 1/4).
Explanation:
The gravitational force between two objects can be expressed with the equation:
By analyzing the equation, we can see that if we multiply both m1 and m2 by 1/2, the resulting new F would be lower by a factor of 1/4 (as 1/2 times 1/2 equals 1/4).
Thus the correct answer is option B.
Maribel brings her backpack to the lab. She is also given a set of lab materials. What is the safest way for Maribel to organize these items in a lab?
Answer:
The personal items should be off the table, and the lab materials should be placed neatly away from the edge of the table.
Explanation:
It is given that Maribel goes to the lab with her backpack and she is given the lab materials to be used inside the lab to perform her experiment.
Now Maribel in the lab before doing her experiment must keep the personal items like her backpack off the working table and the lab materials are should be kept away from the edge of the table otherwise it might fall accidentally and hurt her.
One needs to be very careful while in the laboratory. One should follow the safety procedures to remain safe and also ensure safety of others. Being unsafe and disorganize can hurt others and can cause harm to others. There are various equipment and chemical in the lab. Therefore one should be careful while working in the lab.
Plant and animal cells both have cell membranes and nuclear membranes. However, plant cells have a structure that animal cells do not, known as a: ____
Answer:
cell wall and chloroplast
can someone help me with this question?
Answer:
B....
fatty acids and DNA
:)
Explain how autotrophs need both cellular respiration and photosynthesis
Answer:
They get energy from food. Autotrophs make their own food through the process of photosynthesis, in which light energy from the sun is changed to chemical energy that is stored in glucose. And as for cellular respiration, all organisms use it to break down glucose, release its energy, and make ATP.
Explanation:
_____________
PLEASE HELP!!! Thank you so much!!
Answer:
math
Explanation:
hhaha
A frog that is dominant for its light green color mates with a brown frog and produces one small brown frog. How is this possible if the green color is dominate?
Answer:
The dominant (light green) parent was heterozygote for the trait
Explanation:
According to Gregor Mendel in his law of dominance, an allele is said to be DOMINANT if it masks the phenotypic expression of another allele in a gene. The allele being masked is called RECESSIVE allele. In this case of a frog whose allele for light green color is dominant over the allele for brown color, the light green color allele (G) is dominant while the brown color allele (g) is recessive.
However, in a cross between that have light green frog and a brown frog, a small brown frog is produced. This is possible despite the green color being dominant because the genotype of the light green dominant parent is HETEROZYGOUS i.e. it contains both light green (dominant) allele and brown (recessive) allele.
Hence, when a gamete with recessive allele (g) is produced by the heterozygous light green frog (Gg), it mates with a recessive allele from the brown frog (gg) to produce a brown offspring (gg).
Which organism can convert light energy into chemical energy?
A. alga
B. mushroom
C. paramecium
D. hydra
Answer:
I think the answer is A but i'm not sure if this is correct hope the explanation part helps
Explanation:
Photosynthesis is the process by which organisms that contain the pigment chlorophyll convert light energy into chemical energy which can be stored in the molecular bonds of organic molecules (e.g., sugars).
1. How does the human body respond to exercise?
Answer:
the heart pumps more blood and sends it to the muscles. to create more blood more oxygen is used and you start to breathe harder. if you work out hard then you might get some lactic acid build-up.
hope this helped!
Organs are comprised of tissues that work together to perform a specific bodily function. true or false?
Answer:
I do believe that is true.
Explanation:
Please help I will mark brainliest
Its b
Mark me brainliest
Explanation:
Answer:
B
Explanation:
because I already did that
What are some of the things that Vincent had to do to enhance his genetic
"imperfections?" so that he looked like the real Jerome? GATTACA
Answer:
Lengthen his legs and straighten his teeth.
Explanation:
Vincent had done surgery to lengthen his legs and straighten his teeth in order to enhance his genetic imperfections because he has short legs and improper teeth. He also had some other diseases such as heart disorder, neurological disorder, manic depressive and attention deficit disorder. These disorder can't be cure because it occur to him genetically.
Please help me with these
those are nucleotides
since all three of them contain deoxyribose (because there's only one hydroxil group) they are DNA nucleotides
the first nucleotide has cytosine as it's nitrogenous base
the second nucleotide has adenine as it's nitrogenous base
the third nucleotide has thymine as it's nitrogenous base
The _________________ is the hereditary material of the cell made up of sequences of four nucleotides arranged in linear strands called chromosomes.
Answer:
DNA
Explanation:
The answer is DNA. It belongs to a class of molecules called the nucleic acids, which are polynucleotides(long chains of nucleotides)
Hope this helped :)
what would happen if an electric fish was always negatively charged instead?
Answer:
Electric eels are part of a group of animals called electric fish.These cells pump positively charged sodium atoms, called ions, from inside themselves to the outside.
Explanation:
Brainliest? plz
Electric fish is a part of the group of animals which are responsible for producing charge. These organisms pump positively charged sodium ions from inside themselves to the outside environment.
What is electric fish?
An electric fish is an fish that can generate electric fields and transfer current through themselves. Most of the electric fishes are electroreceptive, which means that these fishes can sense the electric fields present in the environment. The only exception here is the stargazer family which is not electroreceptive.
The examples of electric fish includes Electric eel, that belongs to the genus Electrophorus, South American knifefishes responsible for the production of powerful electric shocks to stun prey.
If the electric fishes are supplied with the negative charge always then they will pump positive charge to neutralize the effect of that charge.
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Does anyone know how to do this????!
Answer:
Check from the internet
Which statement is true about gold and helium?
O A. They both occur as a gas at room temperature.
B. They are both made of subatomic particles.
c. They are both used in balloons.
D. One of made of protons and the other of only electrons.
Answer:
The answer is B
Explanation:
Please help worth 95 points. Project: Algae Cultures: Directions
In this report, you will be researching the different types of algae. Report on one algae from each of the three categories (blue-green, green, and green-brown). Include the following information: Name of the algae, Category if falls under, Where it is mostly found and what conditions it needs to survive, Whether it is unicellular or multicellular, Where in the food chain algae are, and what predators it may have, Research why some scientists think algae should be classified plants, and explain the debate.
1.Which organisms did you identify 2. How easy or difficult was it to find an example of each category? Which one was the hardest to find? Why? 3. Which environments were most common to find algae in? Why do you think so? 4. What part of the food chain is the alga? 5. Why is algae classified in the Protist Kingdom and not the Plant Kingdom even though they are photosynthetic? Research why scientists feel they should be classified as plants.
Answer:
1) I identified the Golden-Brown Algae.
2) It was very easy to find the category because of the solid color base and because it only had the daitoms. It did not have multiple like the Green Algae and the Blue-Green Algae.
3) In fresh, brackish or salt water. They are found both in tropical lakes and seas, and in the alpine and polar snows. They are unicellular or multicellular protist plant organisms, whose cells do not form tissues and lack flowers. They are considered the first link in the food chain in the aquatic environment. They are found in fresh, brackish or salt water. They are primary producers in the food chain, capable of producing organic substances through photosynthesis, so they use sunlight. They are found in tropical lakes and seas up to the alpine and polar snows.
4) Producer Alga is A plant and produces food for other organisms.
5) Algae (Euglena) do photosynthesis as plants do. They also move around and eat, as do animals. But they are unicellular. In order to be classified as a plant or animal, an organism has to be multicellular, made of more than one cell. Since it is a unicellular organism with some plant and animal characteristics, it is called a protist. Plant cells have walls while algae does't have one, so it is a protozoan. Algae resemble the protozoa, so they are put into the Protist Kingdom.
Explanation:
I had the project.
Algae recreate a major part of the marine ecosystem because they exist as the decomposers current in the marine ecosystem; any harm to them could cause an inequality in the whole marine ecosystem.
What are golden-brown algae?1)The Chrysophyceae, usually named chrysophytes, cryptomonads, golden-brown algae or golden algae exist as an extensive set of algae, seen mainly in freshwater.
2) It stood very easy to see the class because of the solid color base and because it only contained the diatoms. It did not contain multiple like the Green Algae and the Blue-Green Algae.
3) In fresh, saline, or salt water. They exist seen both in tropical lakes and seas and in the alpine and polar snows. They exist as unicellular or multicellular protist plant organisms, whose cells do not constitute tissues and absent flowers. They exist thought the first link in the food chain in the aquatic environment. They exist seen in fresh, brackish, or salt water. They exist as primary producers in the food chain, qualified of producing organic substances through photosynthesis, so they utilize sunlight.
4) Producer Alga exists in a plant and makes food for different organisms.
5) Algae (Euglena) accomplish photosynthesis as plants do. They even move about and eat, as do animals. But they exist unicellular. To be categorized as a plant or animal, an organism contains to be multicellular, made of better than one cell. Since it stands as a unicellular organism with some plant and animal elements, it exists named a protist. Plant cells contain walls while algae don't contain one, so it exists as a protozoan. Algae reach the protozoa, so they stand to put into the Protist Kingdom.
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Which option percent of valid hypothesis in the correct form?
A if a cotton plant receives 100 ml of water ever day it will display steady growth
B if cotton plant need consistent amount of water to grow steadily than the cotton plant that receives 100 mL of water Everyday Will displayed study group
C if a cotton plant needs a constant amount of water to grow steadily than a contact that displays Teddy Grove and you will receive a hundred mL of water every day
D the cotton plant displays steady growth it will receive 100 ml of water every day
A cell membrane is called _____________ because it allows only certain substances to enter and leave the cell *
a. exocytosis
b. endocytosis
c. semipermeable
d. diffusion
trna is bring a ggu anticodon what amino acid do you infer it will be carrying?
DNA analysis has little to offer from forensic science
true or flase
Answer:
DNA analysis has little to offer forensic science is false.
Explanation:
DNA may be found on the handle or tip of a baseball bat if it is used in a crime. The evidence is used for DNA analysis