Answer:
gametes are reproductive cells such as sperm and eggs. as gametes are produced the number of chromosomes must be reduced by half.
Explanation: why? the zygote must contain genetic information from mother and from father cells so the gametes must contain half of the chromosomes found in normal body cells.
How does genetic variation arise in a population?
Animals that have analogous structures probably (choose 2)
A. evolved from the same common ancestor
B. are headed for extinction
C. are not related
D. evolved in the same environment
(I WILL GIVE BRAINLIEST)
Answer:
Explanation: For example, the wings of a fly, a moth, and a bird are analogous because they developed independently as adaptations to a common function—flying. The presence of the analogous structure, in this case the wing, does not reflect evolutionary closeness among the organisms that possess it.
Which of the following is not correct? All cells _____.
Answer:
where are the following???
Explanation:
Answer:
I added the answer to the comments can I get brainliest bc It wouldnt let me answer it with the fr answer
Which of the following is not part of the nucleotide structure?
a.
Sulfate backbone
c.
Phosphate group
b.
Nitrogenous base
d.
5-carbon sugar
Answer:
Which of the following is not part of the nucleotide structure?
a.
Sulfate backbonec.
Phosphate group
b.
Nitrogenous base
d.
5-carbon sugar
Explanation:
A nucleotide is an organic molecule that is the building block of DNA and RNA. ... A nucleotide is made up of three parts: a phosphate group, a 5-carbon sugar, and a nitrogenous base. The four nitrogenous bases in DNA are adenine, cytosine, guanine, and thymine. RNA contains uracil, instead of thymine.
Which of the following describes something that oceanographers study?
aquifers
wetlands
currents and waves
river bottoms
Answer:
currents and waves
Explanation:
oceanographers study the physical processes within the ocean so they would not study:
wetlands because wetlands are not part of the ocean.
neither would they study aquifers or river bottoms
Answer:
currents and waves
Explanation:
I'm right 5 stars
Please help fill in the chart for honors biology!!!
Explain how the order in which we are bom can influence our personalities
PLEASE HELP!! WILL GIVE BRAINLIEST
Answer:
People born first or last in a family have a different perspective than people born in the middle. Research has indicated that firstborn children are more likely to be achievement-oriented and responsible than later-born children. Later-born children on the other hand, tend to be better in social relationships and to be more affectionate and friendly. Other studies suggest that first-borns are conservative in their thinking and are defenders of the status quo. Later-borns, in contrast, are often risk-takers and social and educational rebels.
Potatoes can be genetically modified so that they are _________ to plant-eating beetle?
A. Toxic
B. Tacky
C. Tasty
D. None of these
Answer:
A or D
Explanation:
You would want to genetically modify the plant so that the beetles wouldn't want to eat it. If it is toxic, the bugs would stay away from it. However, you could also just modify the plant so that it doesn't taste good for the bugs, in which case you should pick D. Choose whichever answer you think is best.
You are hungry, and want to boil noodles to make spaghetti. You put a pot of water on the stove and turn on the heat. Ten minutes later, the water is still not boiling, What property of water are you observing?
The sun is the most giant star in the universe.
A.
True
B.
False
Answer:
B
Explanation:
There are even 10x bigger stars than the Sun
On what basis are minerals divided into groups?
Answer:
Minerals are grouped by their chemical composition. Silicates, oxides, sulfates, sulfides, carbonates, native elements, and halides are all major mineral groups
Help me to answer this
what changes the shape of an enzyme's active site and disables its catalytic function? select all that apply
A> Noncompetitive inhibitors
B> Low environmental temperatures
C> Competitive inhibitors
D> High environmental temperatures
Answer: A and C
Explanation:
noncompetitive inhibitors and
high environmental temperatures
Only ______planets have rings.
Answer:
giant
Explanation:
Answer:
4. Jupiter,Saturn,Uranus, and Neptune
Which ecosystems would you expect to have the greatest access to sunlight?
A) open ocean and lakes
B) lakes and muddy rivers
c) kelp forests and open ocean
D) muddy rivers and kelp forests
E) springs and kelp forests
PLS HELP ASAP!
Answer:
A (?)
Explanation:
A) An open ocean has direct sunlight almost always, unless if it's night time, meaning that the surface would be open to sunlight whenever necessary. A lake also has more clean water, meaning sunlight can easily go through the water
B) A lake or a muddy river would likely also have direct access to sunlight, however, it could be covered easily by trees or other vegetation. And the mud in the river would likely make it difficult for sunlight to pass through.
C) A kelp forest likely blocks large amounts of sunlight because of their large structures and the tops usually grow outwards, meaning large amounts of sun would be covered.
D) See B and C
E) A spring is usually hidden in a forest, meaning it would possibly be difficult to collect sunlight due to the heavy vegetation and large trees that usually surround them.
This question is somewhat difficult to answer because most of these can be seen anywhere, meaning some can get sun while others can't, so it's hard to determine. Sorry if I got it wrong!
Answer:
A) open ocean and lakes
Explanation:
A researcher claims that budding yeast are able to survive in different environments because they produce enzymes that allow them to use different molecules as sources of matter and energy.
Which of the following statements best helps justify the researcher’s claim by providing a relevant example?
A. Yeast cells produce protein kinases, which are enzymes that catalyze the transfer of phosphate groups from ATP to protein substrates.
B. Yeast cells produce DNA polymerases, which are enzymes that catalyze the conversion of free nucleotides into strands of DNA.
C. Yeast cells produce invertase, which is an enzyme that catalyzes the conversion of the disaccharide sucrose into glucose and fructose.
D.Yeast cells produce catalase, which is an enzyme that catalyzes the conversion of hydrogen peroxide into water and oxygen gas.
Answer:
The correct answer is - C. Yeast cells produce invertase, which is an enzyme that catalyzes the conversion of the disaccharide sucrose into glucose and fructose.
Explanation:
Invertase is an enzyme that hydrolyses the sugar molecule which is sucrose in this condition by performing an inversion of optical rotation which gives it invertase term. Extracellular invertase in budding yeast leads to the hydrolysis of sucrose and yield glucose.
Glucose acts as a source of energy and matter in this process at the end so the budding yeast produces an enzyme invertase that allows it to survive in different conditions.
The statement which best helps justify the researcher’s claim by providing a relevant example about budding yeast is: C. Yeast cells produce invertase, which is an enzyme that catalyzes the conversion of the disaccharide sucrose into glucose and fructose.
A yeast can be defined as an eukaryotic, unicellular (single-celled) microscopic fungus that typical reproduces through budding.
Basically, a yeast is a member of the fungus kingdom and it comprises single oval cells.
Also, this microscopic fungus produce enzymes (invertase) that allow them to convert sugar (disaccharide sucrose) into alcohol and carbon dioxide.
In conclusion, budding yeasts can survive in different environments because they produce enzymes (invertase), which catalyzes the conversion of disaccharide sucrose into the following chemical substances:
Glucose.Fructose.Read more: https://brainly.com/question/12827458
Where did Charles Darwin go on his voyage aboard the HMS Beagle
Answer:
In 1831, Charles Darwin received an astounding invitation: to join the HMS Beagle as ship's naturalist for a trip around the world. For most of the next five years, the Beagle surveyed the coast of South America, leaving Darwin free to explore the continent and islands, including the Galápagos.
Answer:
I googled it and it said the coast of south america lol i hope it helps. there's a bunch of results if you just google that question if you want more info :)
Explanation:
Finish these sentences.
a
Our day is 24 hours long because that is the time it takes the Earth to:
b
A year has 365 days because that is the number of whole days it takes
the Earth to:
Q7) Why do we need to have a leap year once every four years?
Answer:
It takes approximately 365.25 days for Earth to orbit the Sun — a solar year. We usually round the days in a calendar year to 365. To make up for the missing partial day, we add one day to our calendar approximately every four years. That is a leap year.
Answer:
1. complete a 360 degree rotation.
2. circle around the Sun.
3. Every four years, we add an extra day, February 29, to our calendars. These extra days – called leap days – help synchronize our human-created calendars with Earth's orbit around the sun and the actual passing of the seasons. ... Blame Earth's orbit around the sun, which takes approximately 365.25 days.
Explanation:
Which of the following is an example of a feedback loop in the body?
A. The presence of too much adrenaline makes the body stop producing adrenaline.
B. The pancreas can perform endocrine and exocrine functions.
c. The nervous system and the endocrine system can both send messages.
D. The hypothalamus produces hormones and the pituitary gland releases them.
Answer:
the presence of too much adrenaline makes the body stop producing adrenaline
Decomposition breaks down organic material into simpler units and:
A. rids the world of scavengers
B. provides oxygen for photosynthesis
C. rids the world of excess organic material
D. provides proteins for plants
answer: the answer is d, provides proteins for plants.
explanation: good luck with the assignment. hope i helped out some.
An egg cell is fertilized by a sperm cell to form a diploid zygote. Where does this process occur?
Answer:
The fallopian tube
Explanation:
What is the approximate percentage of guanine in the DNA genome of E. coli?
Answer:
25%
Explanation:
The approximate proportion of G + C content in the genome of E. coli has been reported to be 50%. According to Chargaff's rule, the amount of guanine in any DNA must be approximately equal to the amount of cytosine. Hence,
if G + C = 50 and G = C,
then
G = C = 25
Therefore, the approximate percentage of guanine in the genome of E. coli would be 25.
Help me out please :/
Answer:
the answer will be C
You over hear another student say "the human body is very efficent and wastes no energy." Using
what you understand about the process of cell respiration would you agree or disagree. Defend your
answer.
Answer:
I would disagree.
Explanation:
Since during respiration much energy is released as it is an exothermic reaction.
The human body is considered an open system, therefore it constantly exchanges energy with the environment that surrounds it.
why is solar power considered a renewable resource
Answer:
because as long as you have the sun, your solar power will work.
Please help:-) :-) :-) :-) :-) :-) :-)
Can someone help me?
Answer:
im sorr yi have no answer:(
Explanation:
Explain why a scientist should or should not change a theory based on one experiment?
Answer:
Because one experiment could be a fail but if you try it again it could possibly work out
Explanation:
Which of the following will occur?
Water will move from side A to side B.
The solute will move from side A to side B.
Water will move from side B to side A.
The solute will move from side B to side A.
Which of the following is NOT a part of the chloroplast?
O Thylakoid
O Stroma
O Cytoplasm
O Granum
Answer:
Cytoplasm
Explanation:
