Answer:
The sides of the ladder are made of alternating sugar and phosphate molecules. The sugar is deoxyribose. The rungs of the ladder are pairs of 4 types of nitrogen bases. Two of the bases are purines- adenine and guanine.
Explanation:
can you mark me brainliest
Answer:
Explanation:
The shape of DNA is a double helix, which is like a twisted ladder. The sides of the ladder are made of alternating sugar and phosphate molecules. Deoxyribose, which is a pentose, and a phosphate group are the two molecules that together form the two sides of the DNA. The rungs of the ladder are pairs of 4 types of nitrogen bases.
Human ovaries play an important role in reproduction. Which part of a
plant contains structures similar to human ovaries? (A)flower (B)leaf (C)stem (D)root
Answer:
c stem
Explanation:
Which greenhouse gas has contributed the least to the growth in the annual greenhouse gas index?
a. CFCs
b. Methane
c.Nitrous Oxide
d. Carbon dioxide
Answer:
the answer is methane
Explanation:
I took the test
Which of the following is a characteristic of outer planets?
Close to the sun
Few moons
Have rings
Rocky surfaces
Answer:
I think is D.
Explanation:
Correct me if I'm wrong.
Bacteria are capable of
reproducing quickly. Explain how
this adaptation is beneficial in
their ability to become resistant
to antibiotics
Answer:
Antibiotics, also known as antimicrobial drugs, are drugs that fight infections caused by bacteria. Alexander Fleming discovered the first antibiotic, penicillin, in 1927. After the first use of antibiotics in the 1940s, they transformed medical care and dramatically reduced illness and death from infectious diseases.
The term "antibiotic" originally referred to a natural compound produced by a fungus or another microorganism that kills bacteria which cause disease in humans or animals. Some antibiotics may be synthetic compounds (not produced by microorganisms) that can also kill or inhibit the growth of microbes. Technically, the term "antimicrobial agent" refers to both natural and synthetic compounds; however, many people use the word "antibiotic" to refer to both. Although antibiotics have many beneficial effects, their use has contributed to the problem of antibiotic resistance.
Antibiotic resistance is the ability of bacteria or other microbes to resist the effects of an antibiotic. Antibiotic resistance occurs when bacteria change in some way that reduces or eliminates the effectiveness of drugs, chemicals, or other agents designed to cure or prevent infections. The bacteria survive and continue to multiply causing more harm.
in what way a prokaryotic cell is different from eukaryotic cell with respect to nuclear
membrane?
Explanation:
There are several differences between the two, but the biggest distinction between them is that eukaryotic cells have a distinct nucleus containing the cell's genetic material, while prokaryotic cells don't have a nucleus and have free-floating genetic material instead.
Plz follow me and Mark me as brainlest please
What is another name for the photic, or sunlight, zone of the ocean
Answer:
sunlit zone or the euphotic zone
Explanation:
The highest layer of the world's seas is washed in daylight during the daytime. This brilliant sea layer is known as the sunlit zone or the euphotic zone (euphotic signifies "sufficiently bright" in Greek) or the epipelagic zone (epipelagic signifies "upon the ocean")
The diagram below shows two processes, P and Q, in the carbon cycle.
Which of these statements best describes the processes P and Q?
P shows diffusion and Q shows weathering.
P shows weathering and Q shows diffusion.
P represents combustion and Q represents decomposition.
P represents decomposition and Q represents combustion.
Answer:
P shows diffusion and Q shows weathering.
Explanation:
The process shown in the image attached to this question is a part of the carbon cycle. Based on the image in this question, atmospheric carbon enters the ocean in a process called P while carbon deposited in limestone is released into the atmosphere via a process called Q.
- Atmospheric carbon which is carbon dioxide (CO2) enters the surface of the ocean via a process called DIFFUSION, hence, process P shows diffusion
- Also, for the carbon in limestone to be released into the atmosphere, the limestone has to be broken down in a process called WEATHERING. Hence, process Q shows weathering.
which is not an example of capillary actions ?
A. a paper towel absorbing a spill .
B. plant absorbing CO2 through Stomata .
C. a mop absorbing water from a puddle from the ground.
Help Asap!
Answer:
B
Explanation:
capillary actions are related with water movement. co2 is a gas absorbed.
In some fruit flies the allele for having black eyes (B) is dominant to the allele for having red eyes (b) A scientist mated a batch of heterozygous fruit flies. Using a punnet square decide what the P and F generations would look like.
One adaptation to life in flowing water is _____.
A] for anchorage
B] breeding in oceans
C] needing little oxygen
Answer:
A
Explanation:
Plants that live in rivers or any body of flowing water have strong roots to anchor them to the shore.
Which is the correct definition of the Circulatory system?
A. Breaks down food into smaller pieces and absorbs those nutrients into the body.
B. The system fights disease so the body stays healthy.
C. Releases wastes from the body and helps in maintaining homeostasis
D. The system that circulates blood and oxygen through the body, consisting of the heart, blood vessels and blood.
Answer: d
Explanation:
Answer:
d.it regulate the blood and oxygen through
please help i’ll give brainliest
Answer:
the largest amount of organisms are the producers, so yeah choose producers
There a four shared features of Chordates. Match the feature with the appropriate characteristic or function. Group of answer choices found between the digestive tract and nerve cord [ Choose ] in some embryos this develops into the central nervous system [ Choose ] in invertebrate chordates can be involved in filter food from water ingest through the mouth [ Choose ] in jawed fish this provides support for the jaw [ Choose ] provides skeletal support [ Choose ] is derived from the ectoderm
Answer:
1. Notochord.
2. Dorsal hollow nerve cord.
3. Pharyngeal slits.
4. Pharyngeal slits.
5. Notochord.
6. Dorsal hollow nerve cord.
Explanation:
A living system can be defined as the internal systems found within living organisms and how different materials circulate within these organisms.
Generally, these living systems are self-organized life forms and are known to be very much interactive with their surroundings or environment. Also, living systems are dependent on the flow of information, matter and energy at various levels.
Some examples of living systems in organisms are respiratory system, nervous system, circulatory system, and digestive system.
A chordate can be defined as an animal found in phylum chordata of the animal kingdom such as vertebrates, cephalochordates, tunicates, etc.
The four (4) shared anatomical features or characteristics of chordates includes the following;
1. Notochord: found between the digestive tract and nerve cord.
2. Dorsal hollow nerve cord: in some embryos this develops into the central nervous system.
3. Pharyngeal slits: in invertebrate chordates can be involved in filtering food from water ingest through the mouth.
4. Pharyngeal slits: in jawed fish this provides support for the jaw.
5. Notochord: provides skeletal support.
6. Dorsal hollow nerve cord: is derived from the ectoderm.
What are small organelles found in large numbers in the cytoplasm of a cell called?
A. Vacuole
B. Mitochondria
C. Ribosomes
D. Chloroplast
Answer: A. Vacuole
Explanation: :)
Answer: Mitochondria
Explanation:
2. List five things that are found in terrestrial ecosystems.
Answer:
Explanation:
tundra,
taigas,
temperate deciduous forests,
tropical rainforests,
grasslands, and deserts.
Hope this helped!!!
POST-lab Question:
What would be the effect on the butterfly population if the coloration in the environment suddenly changed? (Example: green
butterflies are living on a green plant that suddenly turns brown and loses all its leaves).
Answer:
The butterfly population would decrease or die out.
Explanation:
If the population of the green butterfly had depended on these "green plants" or leaves, they would die out without them since they use these green plants to camoflauge and blend in with them. Its something they can use to hide away from predators, and be safe from them.
What is stored energy and where is it in the food chain?
Answer:
At each level in a food chain, some energy is stored in newly made chemical structures, but most is dissipated into the environment. Continual input of energy, mostly from sunlight, keeps the process going. 3.4 Energy flows through food webs in one direction, from producers to consumers and decomposers.
step by step process of photosynthesis
Answer:
Step 1-Light Dependent. CO2 and H2O enter the leaf.
Step 2- Light Dependent. Light hits the pigment in the membrane of a thylakoid, splitting the H2O into O2.
Step 3- Light Dependent. The electrons move down to enzymes.
Step 4-Light Dependent. Sunlight hits the second pigment molecule allowing the enzymes to convert ADP to ATP and NADP+ gets converted to NADPH
Step 5-Light independent. The ATP and NADPH is used by the calvin cycle as a power source for converting carbon dioxide from the atmosphere into simple sugar glucose.
calvin cycle.
what is the probability for a child to inherit one of two alleles from her dad??
a:100%
b: 50%
c: 0%
d: impossible to know
Answer:
100%
Explanation:
a child will get one allele from her mom and one from her dad.
Answer:
50%
Explanation:
the probability for a child to inherit one of two alleles from her dad is 50 persent.
which part of the cinnamon plant does cinnamon spice come from?
Answer:
the dried inner bark
Explanation:
dried inner bark
Which is an ABIOTIC factor in biomes? *
A. average temperature
B. kinds of trees
C. moss and algae
D. number of insect species
Answer:
D. number of insect species
Explanation:
I got it correct
4. How is salinity affected when evaporation increases?
Answer:Evaporation of ocean water and the formation of sea ice both increase the salinity of the ocean. However these "salinity raising" factors are continually counterbalanced by processes that decrease salinity such as the continuous input of freshwater from rivers, precipitation of rain and snow, and melting of ice.
Explanation:
All genes come in pairs called __________.
Answer:
alleles
Explanation:
The body systems most involved in jogging activity data are the
Explanation:
There are many different systems involved in when we exercise, the three main ones are the Respiratory system which is involved in breathing the circulatory system which is about circulation of blood around the body and finally the muscular system and finally the Muscular system which is about how we move.
When an organism fights with another organism over a limited resource it is called?
A. carrying capacity
B. symbiosis
C. competition
D. predator-prey relationship
PLEASE PLEASE PLEASE HELP GIVING BRAINLY
Changes in ____ result in a change in protein structure which alters the ____-type of the organism and MIGHT increase _____.
Answer:
DNA, genotype and resistance.
Explanation:
Change in DNA of an organism results in a change in the shape and structure of protein because DNA has the codes of instructions on the basis of which ribosomes synthesis proteins for the cell. This change occurs due to mutation in the DNA sequence that causes change in protein. Due to this mutation, the genotype of an organism changes and might increases its resistance that leads to its survival in that environment so we can say that mutation has good effects on the organisms.
50. What is shown in Figure 11-4
Answer:
Umm there is no figure...
A mutation was found in which the DNA sequence changed from 5' CCCGGGAGA 3' to
5' CCCAGA 3' What kind of mutation is this?
O Deletion
O Frame-shift
Insertion
Substitution
Answer:
Deletion beacuse it is missing the GGG
What’s the answer for this
WHAT IS THE POWERHOUSE OF THE CELL?
this is for a friend who answered correctly previously. please just don't put anything funny and let them answer it pleaseeeee.
Explanation:
mitochondria are often referred to as the powerhouse of the cell