Robert Hooke was the first person to observe cells. He observed these cells in (a) a piece of cork.
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Robert Hooke was the first person to observe cells. He observed these cells in a piece of cork. Thus, option A is correct.
What is cell cycle?
Cell cycle is defined as cycle in which cell produces, grows and divides. The cell cycle has mainly three steps the first one is G1 phase in which the size of cell increases, S phase synthesis of DNA takes place and the third step is G2 phase in which cell ready to divide.
Cell is defined as the base of life as it is the structural as well as functional unit of life. Cell is made up of pre existing cells and the cell contain various cell organelles such as mitochondria, endoplasmic reticulum, ribosomes, golgi appratus, nucleus, and cytoplasm.
Basically, cell is of two type one in prokaryotic and another one is eukaryotic. The prokaryotic cell is known as pre mature cells as they do not contain cell organelles and eukaryotic cell are known as advanced and developed cells as they contain several cell organelles.
Therefore, Robert Hooke was the first person to observe cells. He observed these cells in a piece of cork. Thus, option A is correct.
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although a fetus is relatively protected in the mothers womb a number of different toxins can harm the fetus
When oxygen deprivation just prior to death turns off the brain's inhibitory cells, neural activity increases in the
As oxygen deprivation just prior to death turns off the brain's inhibitory cells, neural activity increases in the VISUAL CORTEX. This brian region processes visual sensory information.
The visual cortex is a cortical brain region whose function is to receive, interpret and process visual sensory information.
The visual sensory information that is processed in the visual cortex comes from the eye retina, which has specialized cells (photoreceptors) to receive visual information.
The visual cortex is found in the posterior pole of the occipital lobe, and primarily in its medial region.
It has been shown that oxygen deprivation in the cerebral cortex can lead to cortical blindness.
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Best answer gets brainliest
what does unequal division ensure?
Answer: unequal divisions by design provides a unique synthetic system capable of making decisions on its future fates and states by selectively utilizing two types of divisions.
Explanation:
Stem cells make decisions on either self-reproduction or differentiation by selectively utilizing equal vs. unequal cell divisions Stem cells reproduce themselves by equal divisions. However, they undergo a one-round of an unequal division to reproduce one daughter stem cell which is identical to the original and to produce the other daughter cell that is destined to differentiate to a specialized cell type, thus differentiating into non-stem cell lineages – the process known as “asymmetric cell division”. The differentiated cells reproduce themselves via equal divisions. Therefore, the ability to control equal vs. unequal divisions by design provides a unique synthetic system capable of making decisions on its future fates and states by selectively utilizing two types of divisions.
Over the last two decades, several synthetic cell division systems were synthesized However, none provided a system where equal vs. unequal divisions could be controlled by design. Hence, we set out to synthesize an artificial cell system where we can control equal vs. unequal divisions by design.
low does natural selection lead to the evolution of a population?
Explanation:
when natural selection is cartried out it leads to the species being the fittest inorder words it is called survival of the fittest inorder to promote evolution
The presence of which type of intercellular connections between endothelial cells of brain capillaries results in the blood–brain barrier?.
Toll-like receptors are eukaryotic membrane proteins that bind with bacterial surface molecules and: ____________
a. cause the cell to phagocytize the bacteria.
b. activate the complement cascade.
c. cause the release of antibiotics to kill the bacteria.
d. form channels through which bacterial proteins can enter the eukaryotic cell.
e. cause the release of cytokines that trigger host defenses against the bacteria.
Answer:
release cytokines that trigger host defenses against the bacteria
Explanation:
How can slime molds be both unicellular and multicellular?
During hibernation, bears do not eat for 5 to 6 months in a row. How can the bear stay alive without eating for this long?
Answer:
Fat.
Explanation:
Bears have to survive on the fat. That is why they will eat so much to hibernate through the winter. If they don't have enough fat they wake up.
I hope this helps you
Is there any specialized cells in a white rhino?
Answer:
Neurons and cartilage.
what organelle of a cell connect the nucleus and cell membrane of the cell?
Answer:
Endoplasmic Reticulum
Explanation:
I hope this helps!
Answer:
Endoplasmic Reticulum
Explanation:
have a nice day
which strand or strands shown here would serve as a template for the lagging strand?
Answer:
Bottom strand
Explanation:
Albinism is a recessive trait where an individual does not produce the pigment melanin. A man and woman both produce melanin, but both have one parent with albinism. What is the probability that their first child will have albinism
Answer:
The child has a 1/4 chance of having albinism
Explanation:
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For most types of OCA, both parents must carry an albinism gene to have a child with albinism. Parents may have normal pigmentation but still, carry the gene. When both parents carry the gene, and neither parent has albinism, there is a 25% chance at each pregnancy that the baby will be born with albinism.
What is the probability that their first child will have albinism?
This means a child has to get 2 copies of the gene that causes albinism (1 from each parent) to have the condition. If both parents carry the gene, there's a 1 in 4 chance that their child will have albinism and a 1 in 2 chance that their child will be a carrier.
Do both parents have to carry the albinism gene?
Yes, albinism is passed down (inherited) through families. People are born with albinism when they inherit an albinism gene from their parents. In albinism, both parents must carry an albinism gene for their child to be born with albinism.
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What would be the safest way to reduce the impact of the the non-native red fire ant while minimizing the impact on other organisms
Answer:
The red fire ant is indigenous to South America. In recent years, this invasive species has become a pest for both humans and other ants
crop destruction
What would be the safest way to reduce the impact of the non-native red fire ant while minimizing the impact on other organisms?
A pouring gasoline on ant mounds
B
spraying broad-spectrum pesticides
с
release a species of fly that will prey on the fire ants
D
treating all species of ants with ant killer
Answer: Release a species of fly that ill prey on the fire ants
Explanation:
I assume that was the question with the answers and I had the same question thru study island so here ya go
Someone plz help me :(
whats the difference between starch paste and starch milk(long ish answer pls)
Answer:
Starch Paste is basically a mixture of cellulosic materials added by wheat starch and rice. Starch Milk is just milk with starch in it.
Explanation:
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Starch paste and starch milk are different in their constituents as starch paste contains a mixture of cellulose which is added to rice or wheat whereas starch milk is just raw starch with fibers in it.
What are starch paste and starch milk?Starch paste is a water-soluble adhesive which is primarily used to bond the sheets of paper. It is widely used in paper industry. It is made from the starch of the grains, potatoes, or other plants that are easily available. Before hardening of this paste, starch paste is a highly viscous, gel-like mixture with high moisture content. The starch paste based adhesives adhere well to the cellulosic materials hence used widely in industries.
The waste product formed from the mashed potatoes smuggling with water i.e., the dewatered potato pulp is known as the starch milk. Starch milk is contaminated by small fiber particles such as potato fragments and all the remaining components of potato juice. The starch milk is therefore also known as the raw starch milk.
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What is an ecosystem.
Answer:
An geographic area where living things, organisms and weather work together to form a community.
Explanation:
What kind of fish is on the brink of commercial extinction?
Question 3 options:
Alaska Wild Salmon
The Pacific Cod
North Atlantic Salmon
South Atlantic Swordfish
what are known to swim near dolphins for protection?
Question 5 options:
cod
tuna
salmon
sharks
Answer:
The legendary humpback Mahseer, one of the worlds most iconic freshwater fish, is on the brink of extinction according to scientists from Bournemouth University in the UK
Explanation:
hope this helps I don't know Its correct answer
which lipid composition option has the least membrane fluidity?
Answer:
I think it would be saturated fatty acids
If you are pushing a shopping cart and you start pushing harder what happens?
Answer:
The shopping cart will continue rolling until it will stop.
Explanation:
which of these cells produce and secrete antibodies?
Answer:
Antibodies are produced by specialized white blood cells called B lymphocytes (or B cells). ... The mature B cells, called plasma cells, secrete millions of antibodies into the bloodstream and lymphatic system.
Answer:
B lymphocytes
Explanation:
ANSWER THIS ASAP!!! Describe the structure of a neuron. Include the cell body, dendrites, and axon in your description. How does the structure of a neuron help it carry out its function efficiently?
Answer:
Sensory neurons. Sensory neurons help you: ...
Motor neurons. Motor neurons play a role in movement, including voluntary and involuntary movements. ...
Interneurons.
Explanation:
True or False?
The eastern United States has three types of plate boundaries offshore.
Answer:
True
Explanation:
divergent, convergent, transform
Answer:
true
Explanation:
true
Plants that we reconize today spend the majority of their life in the “blank”
A) haploid Phase
B) seed phase
C) diploid phase
D) gametophyte
Answer:
The answer is C diploid Phase
Answer:
The answer is C.
Explanation:
Plants that we reconize today spend the majority of their life in the diploid phase.
During the sporophyte phase, a diploid plant body (one with two sets of chromosomes) develops and finally generates spores via the process of meiosis. Mitotic division of these spores results in the formation of gametophytes, which are gamete-producing organisms that are haploid (have a single pair of chromosomes).
What does the type of animals and plants brought to the New World demonstrate about the needs of Pre-Columbian civilizations
Answer:
The answer would be D because Pre-Columbian civilizations didn't have any domesticated animals such as cows, chickens, and horses. This fact limited the accessibility to meat for the Pre-Columbian civilizations.Explanation:
make a claim on the factors that cause inherited genetic variations within populations.
Which of the following metabolic processes uses the most energy?
A. Growth and repair
B. Digestion
C. Exercise and warmth
D. Excretion
Answer:
Explanation:
Answer would be c
Answer:
Growth and repair (A)
Explanation:
Growth and repair takes up 70% of energy. Hope this helps! :)
Communities only contain one population of organisms. True or False ?
A community means a group of various different types of species living together in a common location.
A population refers to a group of organisms of the same species living together in a location.
Therefore, the statement communities only contain one population of organisms, is False.
Life Processes
Which one of the following diets would you recommend to patient of high blood pressure?
(a) High sugar, low fat, low salt (b) Low sugar, low fat, low salt
(c) High sugar, high fat, low salt (d) High sugar, low fat, high salt
Answer:
b
Explanation:
since the patient has high blood pressure so his body contains high sugar and salt. so one should recommend them to have a diet of low sugar low fat and low salt
the process of bacterial reproduction is referred to as
Answer:
binary fission
Explanation:
I need help with one paragraph.
Answer:
this is correct
Explanation:
this is correct