What is the critical mass of a species?
A:The weight of all representatives of a species.
B:The weight of the last representative of a species.
C:The number of individuals that must exist for a species to continue.
Answer:
The number of individuals that must exist for a species to continue
Explanation:
I just had it on a quiz. Can I have brainliest?
The critical mass of a species is the number of individuals that must exist for a species to continue. Therefore, the correct option is C.
What is the critical mass of a species?The critical mass of a species refers to the minimum number of individuals that are required for a population to maintain its viability and continue to survive and reproduce in a given environment. This is also known as the minimum viable population (MVP) size.
The concept of critical mass is important in conservation biology because small populations are often more vulnerable to extinction due to genetic factors, environmental fluctuations, and other factors.
Therefore, understanding the critical mass of a species is significant for determining appropriate conservation strategies and protecting endangered species. Therefore, the correct option is C.
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Help plz
Vestigial structures, such as the appendix, are body parts that don't seem to serve a
purpose in humans. How are vestigial structures important evidence for evolution?
A. They provide clues about structures that were important to our ancestors.
B. They provide clues about what future generations of humans will look like.
C. They help identify body parts in fossils.
D. They are evidence that humans used to eat different foods.
Answer:
A
Explanation:
Which of the following microbes cannot reproduce unless it first infects a cell in a host organism?
A.
parasites
B.
bacteria
C.
protozoa
D.
viruses
Answer:
bacteria is a microbes and host organism
Answer:
D.
viruses
Explanation:
Compare and contrast and define the following:
Autotrophic/Heterotrophic
Help a sister outtt
Answer:
Autotrophs are organisms that prepare their own food through the process of photosynthesis,
heterotrophs are organisms that cannot prepare their own food and depend upon autotrophs for nutrition.
Explanation:
Disadvantage
Chemical
Advantage
1.
1.
Dish Detergent
2.
2.
1.
Chlorine
2.
---> The process of selecting a few organisms with desired traits to serve as parents of the next generation. Selective breeding of plants and animals to promote the occurrence of desirable traits in offpsring.?
The process of determining a few creatures possessing desirable characteristics to participate as the founders of the coming generation is Artificial selection.
Artificial selection
The discovery of advantageous characteristics among living things by humankind, as well as the efforts performed to improve and maintain such traits throughout upcoming populations or years.
It follows the same procedure as evolutionary processes, with the exception that with biological evolution, nature determines the decisions rather than humans.
Thus the above response is correct.
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Letter A in the kidney indicates a structure known as
A) a vein
B) an artery
C) the ureter
D) a Bowman's capsule
How is the process used to produce sex cells different from
the process used to produce body cells?
The process used to produce se_x cells which is different from the process used to produce body cells is called meiosis.
What is meiosis?Meiosis is a cellular process that generates four daughter germinal cells having half genetic material.
Conversely, mitosis produces two genetically identical somatic (body) cells.In conclusion, the process used to produce se_x cells which is different from the process used to produce body cells is called meiosis.
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BRAINLEST to FIRST CORRECT answer
Identify structures found in fungi. Check all that apply.
produce spores
contain pseudopods
contain hyphae
contain a fruiting body.
Answer:
produce spores
contain hyphae
contain a fruiting body
Explanation:
In order to create a big storm, the HIGH LEVEL TEMPERATURE had to be... A.Very Cold B.Cold C.Cool
Question:
In order to create a big storm, the HIGH LEVEL TEMPERATURE had to be... A.Very Cold B.Cold C.Cool
Answer:
A, because in order to create a big storm, the temperature has to be at least 40-20 degrees Fahrenheit (below 30 is freezing point, aka snow), and that would be weather where you would need to wear a thick jacket and warm pants.
If this helped, your welcome! Please know that I might be wrong, and if I am, I am truly sorry for that. But If you would, please make me brainliest.
- niaxfandoms (ig and yt)
Can a single cell be living but not be an organism?
1. Yes
2.no
No, this is not possible.
Which of these is changed by the Milankovitch cycles?
A. the reflectivity of Earth
B. the amount of solar energy that reaches Earth
C. the duration of seasons on Earth
D. the length of a year on Earth
Answer: the amount of solar energy that reaches Earth
Explanation:
Enzymes are proteins that impact chemical reactions in cells. Which statement describes the conditions under which enzymes are most effective?
Answer: The statement that suggests that the shape of an enzyme determines its function, would be the fact that enzymes are specific to certain substrates, depending on the particular shape of an enzyme it can allow binding to specific substrates and allow for catalyzing that corresponding reaction
Explanation:
Describe how the stages of mitosis result in the formation of two diploid cells (6 Marks)
Mitosis is a type of cell division in which a diploid body cell copies itself and finally divides into two identical diploid daughter cells . The daughter cells are clones of each other.
Explanation :
The stages of mitosis in detail.
Stage What happens
Cytokinesis The cell membrane pinches in and eventually divides into two daughter cells
Mitosis is defined as the cell division in where a diploid body cell copies itself and finally divides into two identical diploid daughter cells . The daughter cells are clones of each other.
What are the stages of mitosis?There are four stages of mitosis namely prophase, metaphase, anaphase and telophase.
1) Prophase is first phase in which chromatin into chromosomes, the nuclear envelope break down, chromosomes attach to spindle fibres by their centromeres.
2) Metaphase is 2nd stage where chromosomes line up along the metaphase plate (centre of the cell).
3) Anaphase is the main 3rd stage where sister chromatids are pulled to opposite poles of the cell.
4) Telophase is last stage where nuclear envelope reforms, chromosomes unfold into chromatin, cytokinesis can begin.
Mitosis during which the cell makes preparations for and completes cell division only takes about 2 hours.
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in the late 1600s, english astronomer edmond halley presented a model of earth’s structure. helmet originally claimed that earth was
What is the relationship between genes, traits and proteins?
Answer:
Genes are transcribed into mRNA, the mRNA is then translated into proteins, which determines specific traits.
Explanation:
because i used brainly
what is unique about the coast line ?
Answer:
A is the answer
Explanation:
promise ....,.
Help please, I couldn't find the instruction for this, and my teacher said skip it, so I dont know the answer for it ._.
Answer: 1.rod, coccus, or spiral 2. peptidoglycan 3. flagella.
Explanation:
20 points ! multiple choice
4. Which part of the replication process helps reduce the chance for genetic mutation?
a. insertion of RNA primer sequences
b. sealing the gaps between fragments
c. opening multiple origins of replication
d. proofreading new DNA strands
Answer:
D
Explanation:
Key points:
- Cells have a variety of mechanisms to prevent mutations, or permanent changes in DNA sequence.
- During DNA synthesis, most DNA polymerases "check their work," fixing the majority of mispaired bases in a process called proofreading.
- Immediately after DNA synthesis, any remaining mispaired bases can be detected and replaced in a process called mismatch repair.
- If DNA gets damaged, it can be repaired by various mechanisms, including chemical reversal, excision repair, and double-stranded break repair.
that's from khan academy^
hey could u answer these tru/false questions thanks
1.when we classify living organisms we can know how many species there are.
2.taxonomists do not create new groups to fit for the newly classified organisms
3.all the organisms on earth are discovered nowadays
thnak you
Answer:
1.true
2.false
3.false
A catalyst is a ______.
Answer:
a substance that increases the rate of a chemical reaction without itself undergoing any permanent chemical change.
Answer:
A substance that speeds up chemical reactions.
Explanation:
Individuals in a species have genetic variation that can be passed on to their offspring
Answer: Genetic variation within a species can result from a few different sources. Mutations, the changes in the sequences of genes in DNA, are one source of genetic variation. ... As a result, the tree-colored moths are more likely to survive, reproduce, and pass on their genes.
Explanation:
Energy Released from the cellular respiration of glucose is
A.First stores within ATP
B.Stored in the liver as fat
C.Turned into fat
D.used directly for body activity
Answer:
During the process of glycolysis in cellular respiration, glucose is oxidized to carbon dioxide and water. Energy released during the reaction is captured by the energy-carrying molecule. To this extent, the Answer is (A)
Explanation:
Brainliest Please
Energy that is released from the cellular respiration is called as the ATP that is adenosine triphosphate. It is the energy currency of the cell.
What is the number of phosphate in ATP ?The number of phosphates in the molecule of ATP is 3 phosphates.
Glucose and the other food's molecules get broken down by the controlled stepwise oxidation in order to just provide the chemical energy in form of ATP and the NADH. Energy that is released during breakdown of the glucose and the other organic fuel molecules that are from the carbohydrates with fats and the proteins in the glycolysis is just captured and then stored in the ATP.
During the cellular respiration the glucose is just broken down in presence of the oxygen in order to just produce the carbon dioxide with water. Energy that is just released during reaction is just captured by energy-carrying molecule that is ATP (adenosine triphosphate).
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A strand of DNA consists of 35% adenine. What is the percentage of cytosine in that same
molecule of DNA?
Answer:
20.5%
Explanation:
Hope this helps!!
Put the steps of the greenhouse effect in the correct order.
I. Infrared radiation travels through the atmosphere as heat to leave Earth.
II. Radiation from the sun enters the atmosphere.
III. Increased greenhouse gases trap more heat, raising global temperature.
IV. Infrared radiation is absorbed by greenhouse gases and is reflected back down to Earth.
A. II, IV, III, I
B. I, II, III, IV
C. I, III, II, IV
D. II, I, IV, III
Answer:
II, IV, I, III
Explanation:
At first the Solar radiation hits the earth~
The sun's energy is then absorbed~
Head radiates into space from Earth~
This traps the heat and makes Earths Temperature hotter~
Hope this helps uwu
At first the Solar radiation hits the earth~ The sun's energy is then absorbed~ Head radiates into space from Earth~ This traps the heat and makes Earths Temperature hotter~ are the correct arrangement of green house effects. Hence, option A is correct.
What is green house effects?Green house effects are the rays in which heat are taken hold close to earth surface that is near to the earth. These effects have covered the earth like a blanket and keeps the planet toaster and warmer than it could be without them.
Greenhouse gases on Earth trap heat in the atmosphere, warming the whole globe. The primary gases that cause the greenhouse effect are fluorinated gases, as well as naturally occurring gases such carbon dioxide, methane, nitrous oxide, and water vapour which are synthetic.
Thus, option A is correct.
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Put the steps of Protein Synthesis below into the correct order.
4 points
Step 1
Step 2
Step 3
Step 4
A Protein
molecule is
produced
An mRNA
molecule is
produced
mRNA interacts
with a Ribosome
DNA interacts
with RNA
polymerase
The correct order is DNA interacts with RNA polymerase (1), the mRNA molecule is generated (2), mRNA interacts with a ribosome, and protein is produced (4).
What is transcription?Transcription (gene transcription) is the process by which a fragment of DNA is employed to generate an mRNA.
This messenger RNA (mRNA) then travels to the ribosomes in the cytoplasm to generate a protein.The process of translation refers to the protein synthesis by an mRNA template.In conclusion, the correct order is DNA interacts with RNA polymerase (1), the mRNA molecule is generated (2), mRNA interacts with a ribosome, and protein is produced (4).
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Which level includes organisms that get their energy solely from an abiotic factor?
Answer:
Not enough information, but I would have to go with producers.
Explanation:
Producers use abiotic factors (mainly the sun and water).
Which of the following is a function of lipids?
A.
Breakdown chemical compounds
B. Carry heredity information
C. Form boundaries of the cell membrane
D. Make proteins
Answer:
C. Form boundaries of the cell membrane
Explanation:
The functions of lipids include storing energy, signaling, and acting as structural components of cell membranes. Lipids have applications in the cosmetic and food industries as well as in nanotechnology.
The diagram shows the process of osmosis in a beaker model. Only the water molecules could pass through the membrane by osmosis because water molecules________.
a) contain more hydrogen atoms than the other molecules
b) have more energy than protein molecules
c) can pass through the selectively permeable membrane
d) are more numerous than the protein molecules
Answer:
i think it is C correct me if am wrong
Describe What
happens to a planarian when
it is cut into two pieces?