Answer:
Charles Darwin is often cited as the greatest biologist in history. His most famous work, On the Origin of Species, explains the theory of evolution by natural selection, providing numerous supporting examples.
Explanation:
Answer:)
Explanation:
Charles Robert Darwin, was an English naturalist, geologist and biologist, best known for his contributions to the science of evolution. His proposition that all species of life have descended over time from common ancestors is now widely accepted, and considered a foundational concept in science.
The pH of a solution determines the charge of certain R groups. The pH of pineapple fruit ranges from 3.5 to 5.2. Predict the effect on the activity of bromelain if it is used in a product with a pH of 11.
Answer:
The activity of Bromine will reduce
Explanation:
Bromine is found in pineapple stem with pH range of 3.5- 5.2 this implies that the environment where bromine is found is acidic hence when taken to a product whose pH is 11 which is basic then its performance will be low because its can only function well in an acidic medium.
pH ranges tell whether a substance is acidic, basic or neural.
Acid range from 3.5-6
7- neutral
8 above is basic
This is about knowing the behaviour of some elements in different PH Values.
The activity of bromelain will decrease in a product with a pH of 11. .
We are told that the PH of pineapple fruit is of the range of 3.5 - 5.2. In reality, this also includes it's stems and the plants as well. This falls into the acidic range because PH less than 7 is acidic.Now, these stems, plants and fruits of pineapple usually contain bromelain. This implies that bromelain does its' work in an acidic environment since pineapple has an acidic PH.If bromelain is used in a product with a PH of 11, it means it is being used in a basic environment because a PH greater than 7 indicates a basic nature. This means bromelain will not function as well as it did in the acidic environment and as such the activity of bromelain here would decrease.We can now conclude that the activity of bromelain will decrease in a product that has a PH of 11.
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Can you help me on these?
Answer:
I only know the second one. Its Protista
Explanation:
Protist are like those teenagers that are trying to find themselves. They don't know what they want to be. They are producers and consumers.
Which resource is a renewable resource?
A. Coal
B. Gemstones
C. Metal
D. Trees
Answer:
d. trees
Explanation:
cuz i took the quiz on edge
PLS HELP ME PLS PLS PLS PLS PLS
Also pls explain why!!!But pls help!!!Pls
Answer:
"The cricket population would increase"
Explanation:
Without mice as a natural predator, there would be no regulation as to how many crickets live in an area, thus there would be an excessive amount of breeding which can lead to mutations and more sick crickets than healthy ones. The mice pick off the sick/ slower ones so the naturally stronger crickets can pass on their genes to future generations.
Answer:
The cricket population would increase.
Explanation:
If there were no more mice to eat the crickets, the crickets would have a larger population.
do capillaries transport blood from arteries to veins?
Answer:
Capillaries connect the arteries to the veins. The arteries deliver oxygen rich blood to the capillaries, where the exchange for oxygen and carbon dioxide occurs.
Explanation:
Hope this helps!
Why do healthy people get stronger with exercise but people with DMD don’t?
Explanation:
DMD ,Duchenne Muscular dystrophy .
it's an inherited disorder of progressive muscular weakness .
when you do exercise it it strengthens your mascular strength .but a person with DMD which cannot cannot progress its muscular growth because of muscular weakness . they does not get benefit with exercise .
DMD is nothing but it's the stop of the muscular growth .DMD create an obstacle when you do exercise and tries to improve the strength of your muscles as because the growth has already stopped . there will be no change with exercise .
Help.. 14 _____ are substances that can cause cancer.
15
Scientists join cancer cells with antibody-producing white blood
cells to produce _____.
Answer:
14. Carcinogenic
15. Not sure. I believe it is monoclonal antibodies.
In guinea pigs, the allele for black fur(B) is dominant over the allele for
brown fur(b), and the allele for short fur (F) is dominant over the allele
for long fur(t). What percent of the offspring of a BbFf x bbFF Cross
will have short black fur?
Select one:
0%
100%
25%
50%
What is the main function of the cell membrane of a cell?
A. to exchange nutrients and the cells waste with the external environment
B. to limit the size that cell can reach
C. To organize the cell's internal contents
D. to protect the cell from harmful substances in the environment
Answer:
D. to protect the cell from harmful substances in the environment
Explanation:
Cell membrane is also known as plasma membrane is a biological membrane that differentiate the internal organelles of the cells from the outside environment. Cell membrane is made up of phospholipid bilayer with embedded proteins.
The main or primary function of cell membrane is to protect cell from harmful substances in the environment as it is the outer convering of the cell. cell membrane regulates movement of substances in and out of cells which restricts entry of harmful substances and hence called as selectively permeable membrane.
Hence, the correct option is D.
What do you think the word biodiversity means? Why is biodiversity important for the stability of ecosystems?
Answer:
Biodiversity refers to the variety of species in an ecosystem. Generally, ecosystems with high biodiversity are more likely to survive environmental changes. Therefore, biodiversity is important to ecosystem stability.
Astronauts have been exploring outer space in manned spacecraft since 1961. Which of the following would have made it very dangerous for people to explore outer space?
A.
if the Earth's orbit passed through dense meteoroid fields
B.
if there were fewer cosmic rays passing through the solar system
C.
if the asteroid belt was farther from the Sun
D.
if the Earth's orbit was more circular than Venus' orbit
Answer:
B because it makes more sense
Explanation:
it makes more sense
Which of following are natural factors that can cause extinctions?
I. climate change
II. asteroid impacts
III. volcanic eruptions
IV. changes in oxygen levels in seawater
A.
I, II, III, and IV
B.
I, II, and III only
C.
II and III only
D.
I and IV only
i need help asap
Answer:
A is the answer. so it's correct
WHY is this football player wearing an oxygen mask? what is the importance of oxygen here? What is he trying to avoid by wearing the oxygen mask?
Answer:
bc oxygen contributes to muscle performance on and off the field.
i think this is pretty easy so fill in the blanks and i’ll give you 15 points
Answer:
producers, energy, carbon dioxide, oxygen
What component of earth’s atmosphere exits entirely as a result of photosynthesis
Answer:
Oxygen
Explanation:
Answer:
Oxygen gas
Explanation:
Earth's atmosphere is made up of many different molecules including the gases and the vapors. Oxygen is a product of photosynthesis alongside water and glucose.
Why does the amount of energy DECREASE as you move up the pyramid?
It is absorbed by the sun
It is lost as heat
The animal vomits part of it's food
Answer:
It is the second option. Lost as heat.
Answer:lost at heat
Explanation:
what systems do you use when you have a scrape knee
Answer:
cleaning alcohol. polisporin. and bandades
Explanation:
Answer:
You use the immune system
Explanation:
it play a crucial role in the process of wound healing
What is required for both the light-dependent and light-independent reactions to proceed?
energy
CO2
water
ATP and NADPH
Answer:
A.Energy
Explanation:
I Got it right :_
Answer:
A.)energy
Explanation:
i took the test : )
What is the most common element found in the composition of minerals?
Answer: Water
Explanation:
Water I think
I need help with this Biology
Answer:
A.
Explanation:
All the microbes I were living inside the person's body die when the person dies
Why is the nitrogen cycle important for the survival of organisms in an ecosystem? A. The nitrogen cycle recycles nitrogen through an ecosystem, making it available to all organisms. B. The nitrogen cycle keeps organisms from consuming nitrogen in their ecosystem. C. The nitrogen cycle allows all organisms in an ecosystem to consume nitrogen instead of consuming each other. D. The nitrogen cycle stores nitrogen in safe places, keeping it from entering an ecosystem.
Answer: A.) The nitrogen cycle recycles nitrogen through an ecosystem, making it available to all organisms.
Explanation: Nitrogen is an essential nutrient for plants and a significant component of proteins, which all animals need to grow, reproduce and survive. The nitrogen cycle converts nitrogen into compounds that plants and animals can use.
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When Aaron Burr needed to cross a stream, he used
several board's to build a makeshift bridge.
Which of these are long strands of DNA?
A. Chromosomes
B. Fossils
C. Genes
D. Mutations
Answer:
Chromosomes
Explanation:
The high temperature on Friday was 8 degrees above zero. The low temperature was 3 degrees below zero. Which expression gives the average of the low and high temperatures?
a
Left-bracket negative 3 + (negative 8) right-bracket divided by (2) Right-bracket
b
(negative 3 + 8) divided by 2
c
(negative 3 + 8) divided by (negative 2)
d
Negative (3 + 8) divided by 2
Answer:
B
Explanation:
The negative goes by the 3 because it is 3 degrees below zero. To find averages, you add the numbers and divide by how many numbers there are. in this case, it would be (-3+8)/2
What would happen if all of the foxes (secondary consumers) were hunted until they were gone in a forest ecosystem? *
Answer:
primary consumer would increase in population but anything that ate the fox would decrease
What biotic Ann abiotic factors determine an animal's place in the world
water, habitat, competition, predation, climate
What type of relationship where both organisms benefit
Answer: mutualism!
hope this helps! recently learned about this. :D
4. What are the first organisms (colonizers) on the land? *
O
Flowers
Ants
Lichens & mosses
O
Oaktree
Submit
Answer:
mosses & lichens ......
The cardiovascular system includes all of the following EXCEPT?
A.
Veins
B.
Arteries
C.
Capillaries
D.
Neurons
Answer:
D
Explanation:
The cardiovascular system does not include Neurons (D). The cardiovascular system is also known as the circulatory system..i think :/
Hope this helps, if it doesn't please let me know :)
Answer:
D, Neurons
Explanation:
cardiovascluar sysetm does not include neurons as neurons are molecules.
A company has several factories around the world and has decided to transition from burning fossil fuels to using alternative energy resources. How could a decrease in burning fossil fuels impact the atmosphere?
A It could decrease the oxygen levels of the atmosphere
B it could increase the nitrogen levels
C it could decrease the carbon dioxide levels
D it could increase the sulfur dioxide levels
Answer:
C. It could decrease the carbon dioxide levels of the atmosphere
Explanation:
This is 100% right
Give brainlest please
