Answer:
A
Explanation:
The cyanobacteria were already there without the oxygen, so that rules out A and a lot of prokaryotes were anaerobic, so that rules out Finally, Photosynthesis does not require oxygen. Instead, Oxygen is a waste product of it.
What is photosynthesis?
Photosynthesis is a process that occurs in the chloroplast organelle of plant cells. The typical light reaction of photosynthesis takes place inside the thylakoid membrane of the chloroplast. The chief reactants such as water and carbon dioxide participate in the reaction. The water gets oxidized in the reaction to release oxygen as a product. The carbon dioxide gets reduced.
Thus, Photosynthesis is a process that occurs in the chloroplast organelle of plant cells
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Homo erectus was likely the first hominid to successfully migrate to regions beyond Africa. Discuss how the biology and culture of Homo erectus led to its success on three major continents with varying environments.
Being the first designer of hand axes, stone fire, and other tools, Homo erectus was successfully established in other continents with varying environments.
What do you mean by Environment?The Environment may be defined as anything which is present in the surroundings of living organisms.
While making such tools for their use, they need proteins to survive and play their functional role. It leads to the mutation in their protein structure and behavior.
They used fire for cooking, heating their body during winter, and threatening away large predators.
Due to all these inventions, they successfully adapted to three major continents with varying environments.
Therefore, it is well described above.
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Yellow peas (Y) are dominant to green peas (y). Cross two heterozygous yellow pea plants. - What is the genotype ratio? What is the phenotype ratio?
Answer:
Explanation:
Genotype ratio --> 1 YY : 2 Yy : 1 yy
Phenotype ratio ---> 3: 1 (3 yellow, 1 green).
Examining a cell under a microscope, you conclude that it is a prokaryotic bacterial cell. What observation would correctly lead to this conclusion?
The cell lacks a nucleus
The cell lacks a cell membrane
The cell lacks genetic material
The cell lacks cytosol
Answer:
The cell lacks a nucleus.
What two system are affected first when a bee sting a person
Answer: Bee venom contains proteins that have an effect on the skin cells and system, leading to pain and swelling at the location of the sting, notwithstanding someone isn't allergic to the venom. In those that ar allergic to bee stings, the venom triggers a a lot of severe system reaction.
Explanation:
How can we make hospitals plastic free and still save people's lives?
Answer:
They could reuse tools like surgical basins and sterilization wraps to reduce waste
Explanation:
Hope this helped <:
~Lil pickle
Answer:
You could use different materials for tools, such as metals, stainless steel, ceramics, etcetera.
Before you can calculate the estimated population size from a population sampling study, which of these is the MOST important data point to find?
Answer:
D
Explanation:
The average number of tagged individuals caught over all trials is the MOST important data point to find
Average no. of tagged individual caught over all trial.
The size of the sample is always less than the total size of the populationWhy is population size calculated?Knowing the size of a population of animals is important in making environmental decisions that would affect the population, but estimating the size of wild populations is extremely difficult.
What are the factors affecting population size?Amount of food.Amount of shelter.Amount of access of medication and medical care.Birth rate increase or decrease.Death rate increase or decrease.Amount of water.Hence, D option is correct.
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as players speeds up, their kinetic energy will
How can a renewable resource run out? Please answer thoroughly!!!
Answer:
statement"run out"ain't right for this situation renewable resources will temporarily"run out" if our consumption for it increased more than it's refill rate
(I will give brainliest to whoever gives the best answer)
Shipping impacts everything from oil and waste in the water to greenhouse gases in the air. But it’s necessary for many aspects of our daily lives. What are some things you can do to help minimize these impacts?
Answer: Here are some things you can do to help minimize some of these impacts. Don’t smoke inside, Walk or cycle as much as possible to get where you need to go, Keep green plants in the home as they help to clean the air, Choose a cleaner commute, Combine errands and reduce trips. These are some ways to help out. Hope this was helpful!
Explanation:
Which change is a long-term environmental change? check all that apply. An ice age an earthquake a forest fire a tsunami a mountain building.
Answer:
ice age
Explanation:
an ice age is any geologic period during which thick ice sheets cover vast areas of land.
Answer:
It's Ice age and a mountain building
Explanation:
Those are just reasonable answers trust me i am right. :D
A chemical reaction that releases energy is called ___________ and a chemical reaction that absorbs energy is called ___________ .
A
exothermic; endothermic
B
endothermic; exothermic
C
exothermic; accumulative
D
liberal; endothermic
Answer:
a exothermic;endothermic
Explanation:
learned that in sience class yesterday
Answer:
a) Exothermic ; Endothermic
Explanation:
A chemical reaction that releases energy is called exothermic reaction and a chemical reaction that absorbs energy is called endothermic. Hence, option (a) is the correct answer.
What is a major shortcoming in the field of behavioral genetics in terms of their studies on human personality traits?.
Answer:
Behavioral geneticists are unable to conduct controlled research studies on human subjects.
Exposure to pesticides or industrial chemicals _______. a. always has immediate and apparent side effects b. decreases the risk of developing genetically influenced diseases c. increases the risk of developing genetically influenced diseases d. has no effect on the risk of contracting genetically influenced diseases please select the best answer from the choices provided a b c d
Exposure to pesticides or industrial chemicals always increases the risk of developing genetically influenced diseases.
What are pesticides?Pesticides are chemical substances used to kill pest that attacks agricultural crops or domestic substances.
However, these pesticides and industrial chemicals can serve as mutagens that cause mutation when ingested by living organisms.
Mutations can utterly lead to genetically influenced diseases. Therefore, an exposure to pesticides or industrial chemicals always increases the risk of developing genetically influenced diseases.
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Which two groups of organisms can also be classified in the domain eukaryota?.
Answer:
Animals, Plants, Fungi, Protists
Explanation:
Domain Eukarya includes Kingdoms Animalia, Plantae, Fungi, and Protista.
Explain how organisisms as diffrent as diatoms and ciliates belong to the same kingdom protest group.
Answer:
Ciliates belong to the eukaryote supergroup Alveolata (alveolates). These protists are characterized by the presence of unit membrane-bound sacs or alveoli, underlying their plasma membrane (Figure 1). There are three major groups within alveolates – the dinoflagellates, the apicomplexans, and the ciliates.
Explanation:
The flea that bit the rat, then the person and gave him the disease is called a _____ giving brainliest to first answer!
(Number 3)
Answer:
Vector
Explanation:
A vector is an organism that transports a disease from one organism to another.
Solar cells convert ... directly into...
Answer:
Solar cells convert sunlight to electricity
Explanation:
I hope this helps (:
Describe the factors that influence an individual’s phenotype.
What should we demand from the government that can cause a reduction in waste
Answer:
Stricter laws on recycling.
Explanation:
where i am from there is no recycling pickup or even bins with the addition of a recycling program my area alone would greatly reduc on waste produce and thrown away.
why is it important murders are caught globally?
Which substances are formed after a chemical reaction takes place!
coefficients
subscripts
products
reactants
ת
1oint
Answer:
Product
When chemicals react they form another new thing which are called products
I need help on question 16 the bottom one and I need help on numbers 8,9 .
Answer:
Number 16 : Natural gas would be encountered first, then petroleum, and finally water.
I'm not sure about 8 and 9 though
How does sickle cell anemia affect the urinary system?.
Answer:Sickle Cell Anemia does not directly effect the urinary system.
Explanation:
Sickle Cell Anemia does not directly effect the digestive system. The effects of sickle cell anemia on the digestive system are similar to those of the nervous system.
A dog uses pheromones to
Answer:
D. Mark its territory.
Explanation:
As a dog patrols its territory urinates. Male dogs in particular will urinate frequently, leaving pheromone-rich urine on objects to let other dogs know that the territory belongs to them.
a genetic trait that is hidden by another trait is called a
Answer:
a recessive allele is a genetic trait that is hidden by another trait
Why are Giraffes tall
Answer:
Being taller would give them the advantage of eating leaves off trees that other herbivores couldn't reach.
Explanation:
trust
Answer:
They eat leaves off trees so they are tall
Explanation:
What do you know about supply and demand ?
Answer:
The less supply, the more demand, and vice versa.
Explanation:
It also depends on how valuable the resource is.
which of the following is a healthy food for ducks to eat?
A
crackers
B
old bread
C
bugs
D
uncooked rice
how many living things are there on the plant?
Answer:
8.7 million species of plants and animals are in existence at the moment. Moire are being discovered everyday (at least I think so cx)
Explanation:
Hope this helped-
During El Niño years, why is Christchurch, New Zealand's air temperature cooler than usual?
Answer:
Normal years as you can see that the energy transfers mostly from the ocean to the air. However during El Nino years, less energy transfered from the current air which makes Christchurch cooler.
Explanation:
.
Answer: During El Niño years, Christchurch, New Zealand's air temperatures cooler than usual because the prevailing winds that normally drive a warm current from the Equator are disrupted, which means less energy is transferred to New Zealand's air