Explain how genetic variation and environmental factors contribute to natural selection
Explanation:
Increasing genetic variation and the environmental effects on that variation form the basis for natural selection. A species with a great deal of genetic variability is more likely to survive as a species in a changing environment than a species with limited variability.
An idea would likely be accepted or rejected during the ideascreening phase.
True
False
Answer:
true (seems like the most logical answer)
1. What is the goal of mitosis?
Colorblindness is a sex-linked recessive trait carried on the X chromosome. If a woman with
normal vision marries a colorblind man, which will most likely be true of their children?
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Answer: NO BECUZ IF DA MAN IS COLOR BLIND HIS SPEM WONT BE COLOR BLIND AND SCINCE THE GRILL AINT COLLR BLIND DEN THE BABY AINT GON BE COLLOR BLIND. YA HERD
Explanation:
please help, will give brainliest
Answer:
contraction and relaxation of the heart
Explanation:
22. Why do you think the sea urchin was chosen to test the effect of changes in pH?
Answer:
as it settles deeper underwater ph tends to be higher and a sea urchin tends to be more resilient to change
Acidic seawater, at current pH levels found in the world's oceans, can have a negative impact on sea urchin larval development so it is taken to test the effect of changes in pH.
What is sea urchin?Sea urchins are spiny, globular echinoderms of the Echinoidea class. The urchins were able to compensate for internal pH in modest acidification (pH 7.8) and not in higher acidification (pH 7.6).
The pH of coelomic fluid was lower at higher temperatures.
Thus, due to this, the sea urchin was chosen to test the effect of changes in pH.
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A 4 kg cannonball is accelerated through the barrel of a cannon with an acceleration of 725 m/s2. What force must have been applied to the bullet?
Answer:
2900N...........
Explanation:
f=ma
f=4×725
f=2900N
What element has 1 valence electrons and 4 energy levels?
Answer:
Hydrogen and helium, both in the first period, have their valence electrons in the principal energy level n=1
Explanation:
Answer:
Hydrogen and Helium
Explanation:
A broken bone can heal itself in a few weeks
Asexual reproduction
Sexual reproduction
Answer:
Asexual reproduction
Explanation:
It is Asexual reproduction. Because of miosis and mitosis, the bone can heal by itself after a few weeks.
Why are some genes expressed (turned on) and some genes not expressed (turned off) in a cell?
Answer:
some genes can funtion on their own
Explanation:
Large moving cells in the blood and lymph nodes that ingest and digest foreign particles or wall off material are called:
bacteria
fibroblasts
viruses
leukocytes
Answer:
Leukocytes
Explanation:
Leukocytes = White blood cells that digest foreign particles
Prokaryotic does not have...
A.) life
B.) cell membrane
C.) DNA or RNA
D.)membrane bound
F.)organelles
they have no internal membrane bound organelles
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Answer: B. Comparative embryology
Explanation: Good luck! :D
Based on the diagram above, how is isoleucine inhibiting the function of threonine deaminase (Enzyme 1)?
According to the diagram, when will this enzyme begin to function again and make more isoleucine?
Answer:
b evrensel cevap geçiş ocmc.cc,c,
Explanation:
enzim olmasi lazi, hakikatten ya
Cystic Fibrosis is an autosomal recessive disease. A carrier male is married to a carrier female. What is the chance they will have a child with cystic fibrosis?
Answer:
If only one of you is found to be a carrier, the chance that you will have a child with CF is very low, although not completely eliminated. If you are both carriers, each pregnancy will have a 1 in 4, or 25 percent chance of being affected with cystic fibrosis.
Explanation:
hope this is helpful
are plasmids in prokaryotic or eukaryotic cells
Complete a Punnett square that shows a test cross for a tall pea plant (RR x rr). Place the plant to be tested at the top of the Punnett Square.
Answer:
Rr, Rr, Rr, Rr.
the pea will be heterogeneous.
Explanation:
I am pretty sure
How does the electron transport chain deal with the electrons removed from sugar molecules?
Answer:
Explanation:
The electron transport chain is the portion of aerobic respiration that uses free oxygen as the final electron acceptor of the electrons removed from the intermediate compounds in glucose catabolism. The electron transport chain is composed of four large, multiprotein complexes embedded in the inner mitochondrial membrane and two small diffusible electron carriers shuttling electrons between them.
The electrons passing through the electron transport chain gradually lose energy, High-energy electrons donated to the chain by either NADH or FADH2 complete the chain, as low-energy electrons reduce oxygen molecules and form water.
These same molecules can serve as energy sources for the glucose pathways.
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Which of the following are factors that limit enzyme activity?
denaturation
increase in substrate
optimal temperature
increase in number of enzymes
According to the research, increase in substrate and temperature are factors that limit enzyme activity.
What are enzymes?It is a protein that catalyzes the biochemical reactions of metabolism and acts on molecules known as substrates.
The way that the enzyme has to carry out its catalytic activity will be in the first place to bind with the substrate, this is limited by different factors such as the concentration of the substrate and the temperature.
Therefore, we can conclude that according to the research, increase in substrate and temperature are factors that limit enzyme activity.
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Please hurry it’s timed
Answer:
B) Nucleotide
Answer:
Nucleotide
Explanation:
The entire thing is called a nucleotide, the other answers are parts of a nucleotide.
explain why cells don't just continue to grow bigger as the organisms grow bigger. Why do cells divide? Write in complete sentences
Answer:
Cells divide to make sure the organism is growing and it helps the organism get all the stuff they need to live.
Explanation:
Cells have specific dna is in these cells to help the organism grow and keep making life as we know it, multiple cells die for us living
light pollution from a city can make the night sky appear as if ________
a. stars seem closer to us
b. stars seem farther away
c. there are more stars
d. there are no stars
( i dont know which ones science where it tells you to choose )
Explain how cells are related to living things.
1-2 scentences
Answer:
Image result for Explain how cells are related to living things.
Cells are the basic building blocks of living things. The human body is composed of trillions of cells, all with their own specialised function. Cells are the basic structures of all living organisms. Cells provide structure for the body, take in nutrients from food and carry out important functions.
Explanation:
Read this paragraph from the passage “True or False: Can You Trust Your Memory?”:
“In my view, the similarities [in memory brain activity] outweigh the differences,” adds McDermott. “It’s really not possible at this point in time to reliably distinguish between real and false memories.”
Now read the paragraph below from “The Mind in the Machine.” As you read, think about how the information in the two paragraphs relate to one another. Which sentence from the text supports that artificial intelligence likely would have trouble distinguishing a true memory from a false memory?
a. The human brain has always been an important source of inspiration for computer scientists.
b. It’s the best example we have of an intelligence machine.
c. This approach roughly mimics the way the brain processes information.
d. Recently, AI has taken huge steps forward thanks to a technique called deep learning.
Answer:
trvy uey uue urur urieu ieirii
Complete the flowchart to summarize cellular respiration.
Answer:
Explanation:
K
The shape of North Carolina's Twelfth Congressional District, shown above, is most likely the result of - (A) watershed boundaries B) gerrymandering (C) county boundaries (D) decentralization (E) amalgamation
Answer:B gerrymandering
Explanation:i had this on a test
The majority of states give the state legislature main power over the process of drawing congressional and state legislative districts. Thus, option B is correct.
What gerrymandering shaped North Carolina's?The admittance of Dakota Territory as two states rather than one is a remarkable example. Regardless of its population, each new state carried a minimum of three electoral votes under the standards for representation in the Electoral College.
On February 11, 1812, the first “gerrymander” was sketched on a map and made official. The redistricting plan was approved by Elbridge Gerry, the governor of Massachusetts at the time, in order to maintain his party's hold on power in the forthcoming election.
Therefore, gerrymandering shape of North Carolina's Twelfth Congressional District.
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Which of the following best explains why a student researching genetics should use the most recent textbooks available?
A. No technologies from more than ten years ago are still in use.
B. Research in Mendelian genetics began very recently.
C. New discoveries frequently add to older knowledge in genetics.
D. Older textbooks are more difficult to understand.
Answer:
C. New discoveries frequently add to older knowledge in genetics.
Answer:
its C!!
Explanation:
Mitosis leads to which of the following?
A. Eggs or sperm
B. No diversity in the offspring
C. Four daughter cells
D. Cells with 23 chromosomes
11. What genetic syndrome is shown in this picture?*
Answer:
As per I know...
it's Down's syndrome..