D) reducing drag from the water they must swim through
The streamlined shape of dolphins, seals, and other swimming animals helps to reduce the drag that they experience as they move through the water. Drag is a type of force that acts in the opposite direction of motion, and it can significantly slow down an animal's movement through the water. By having a streamlined shape, these animals are able to minimize the amount of drag that they experience, which allows them to swim more efficiently and with less effort. This is especially important for animals that need to swim long distances or maintain a consistent speed in the water.\
D) reducing drag from the water they must swim through
The streamlined shape of dolphins, seals, and other swimming animals helps to reduce the drag that they experience as they move through the water. Drag is a type of force that acts in the opposite direction of motion, and it can significantly slow down an animal's movement through the water. By having a streamlined shape, these animals are able to minimize the amount of drag that they experience, which allows them to swim more efficiently and with less effort. This is especially important for animals that need to swim long distances or maintain a consistent speed in the water.
When new dirt is created from organic and inorganic materials, it is called
O A) erosion
B) weather
C) composting
OD) conservation
Answer:
the answer is C) composition
(20 POINTS) Of the animals in this phylogenetic tree, which two species are most closely related?
human
thesus monkey
mouse
chicken
frog
lamprey
Answer:frog and mouse
Explanation:
PLEASE HELP ME AS QUICK AS POSSIBLE
Haploid cells have _____ and diploid cells have _____ of its DNA.
A.
two copies, one copy
B.
one copy, two copies
C.
two copies, four copies
D.
one copy, four copies
Answer:
B. one copy, two copies
Explanation:
Haploid is 23 chromosomes, so there is one copy of each human chromosome while diploid is 46 chromosomes, so there are two copies of each human chromosome.
Halpoid refers to a cell with a single set of chromosomes
Diploid refers to a cell with two sets of chromosomes.
State the function of centromere
Answer:
The primary function of the centromere is to provide the foundation for assembly of the kinetochore, which is a protein complex essential to proper chromosomal segregation during mitosis. In electron micrographs of mitotic chromosomes, kinetochores appear as platelike structures composed of several layers
What happens if you place all four zip bags of apples in a dark for a week. What would be the observation for all four apples…
Answer:
They would slowly decomposeanf then become mushy.and nasty
How can you identify which organisms belong in which kingdom? Specifically, how can you
tell if it is a plant or an animal?
Plzzzzz help me. How does the number of eggs in one flower compare to the number of pollen grains in one anther?
Using the drop-down menus, label the parts of an amino acid.
Label A
Label B
Label C
A chain of 2 carbon atoms and a nitrogen atom is shown. Label B shows the middle carbon atom bonded to a hydrogen atom and an R group. Label C shows the other carbon atom double-bonded to an oxygen atom and single bonded to a hydroxyl group. Label A shows the nitrogen atom is bonded to 2 hydrogen atoms.
Answer:
Label A is the amino group
Label B is the R group
Label C is the carboxyl group
Explanation:
Cytochalasin is a drug that caps actin filament plus ends, thus preventing actin polymerization. Phalloidin is a drug that binds to and stabilizes actin filaments, preventing actin depolymerization. Even though these drugs have opposite effects on actin polymerization, the addition of either of these drugs instantaneously freezes the cell movements that depends on actin filaments. Explain why drugs that have opposite effects on actin filaments can have a similar effect on cell movements.
Answer:
The correct answer is - these drugs inhibit both the polymerization and depolymerization of actin.
Explanation:
Cytochalasin is a chemical drug that covers or hides the plus end of the actin filament which inhibits the binding of actin monomers and actin polymerization on another hand the Phalloidin chemical makes the actin filaments stable by attaching to them and inhibits the depolymerization process.
The addition of any of these drugs stops the cell movement which is caused by the actin polymerization and depolymerization which is stoped by these drugs. Cell movement is the process that required both actin polymerization and depolymerization.
How does latitude affect a climate zone? (1 point) Group of answer choices Climate zones at low latitudes are hotter because they receive more direct sunlight. Climate zones at high latitudes are cooler because they are closer to the equator. Climate zones at high latitudes receive a lot of precipitation because they are farther from the equator. Climate zones at low latitudes receive little precipitation because they are closer to the ocean.
Climate zones at low latitudes are hotter because they receive more direct sunlight. Therefore, the correct option is option A.
Due to the Earth's tilt and the orbital geometry of its planet, climate zones at low latitudes are hotter because they receive more direct sunlight. The tilt of the Earth's axis in relation to its orbit around the sun is roughly 23.5 degrees. At various points on the Earth's surface during the year, this tilt produces fluctuations in the amount of sunlight that is received. The angle at which sunlight strikes the surface is almost perpendicular in low latitudes, which are nearer the equator. As a result, there is more direct and concentrated heat since the sunshine is concentrated over a smaller area.
Therefore, the correct option is option A.
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Which event is an example of vegetation reproduction in plants?
A. Mosses from spores in capsules.
B. Kalanchoe plants produce plantlets on their leaves.
C. Pine trees produce seeds in cones.
D. Sunflower plants produce seeds in their flowers.
The event that is an example of vegetation reproduction in plants is Kalanchoe plants produce plantlets on their leaves, which means letter B.
What makes a seedling different from a plant?The seedling is a small plant resulting from the early development of the embryo. A seedling is considered when most of the compounds necessary for its development still come from the cotyledons, that is, when more than 50% of the cotyledons are still present and functional.
In asexual reproduction, the plant does not need another gamete to reproduce. For this type of reproduction, parts of the plant are removed to obtain new plants, which is known as a clone. This case occurs in Kalanchoe plants produce plantlets on their leaves.
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Identify 2 man made extinction causes and 2 conservation causes.
Answer:
Such characteristics are called as Properties of the system. 1. Intensive Properties: They are independent of total mass in the system e.g., Pressure, Temperature, Density. 2. Extensive Properties: These are dependent on the total mass in the system.
Explanation:
importance of transpirtation
Answer:
transportation is important for whole world because it is a part of water cycle
The largest population an environment can support is its
A. symbiosis.
B.carrying capacity.
C.population.
D.limiting factor
Answer:
B. carrying capacity
Explanation
Carrying Capacity is the maximum number of individuals one species that a particular environment can support
Name the stage (include the I or II in the name)
Explanation:
1. Prophase I
2.Interphase
3.Anaphase I
4.Anaphase
5.Telophase II
6.Prophase I
4. Think of 5 different muscles in your body and list them. You don't have to use the scientific name. Classify these muscles as either voluntary or involuntary and identify if they are cardiac, smooth or skeletal muscle.
Please answer ASAP
Answer:
cardiac muscles: involuntary, cardiac
triceps: voluntary
biceps:voluntary
deltoid:voluntary
quadriceps:voluntary, skeleton
Which characteristic would you find in an advanced organism?
A acoelum organism
B protostome organism
C pseudocoelum organism
D deuterstome organism
Answer:
Deuterosome
Explanation:
This because deuterosome are organisms which posses both mouth and anus. The mouth is in the opposite side as anus. These is normally found in advance organism compare to prostosome which have mouth only.
The deuterosome are mainly chordates, echinoderms e.t.c.
Starch is a complex carbohydrate that is digested by the enzyme amylase. A mutation in the gene that encodes amylase prevents the digestion of starch. The inability to digest starch is an autosomal recessive trait. In a population of 1000 flies, 410 were unable to break down starch. What is closest to the number of flies expected to be heterozygous for the amylase mutation assuming all conditions of Hardy-Weinberg equilibrium are met?
Answer:
The closest to the number of flies expected to be heterozygous for the amylase mutation assuming all conditions of Hardy-Weinberg equilibrium are met is 1600 flies.
Explanation:
According to the Hardy-Weinberg equation : p² + 2pq + q² = 1
Also p + q = 1
Where p² is the frequency of individual flies with the similar alleles for the dominant trait;
2pq is the frequency of individuals with the heterozygous allele for breaking down starch, while q² is the frequency of the individuals having similar allele formthenrecessive trait.
q² = 410/10000 = 0.041
q = 0.2
p = 1 - 0.2
p = 0.8 p² = 0.8²
p² = 0.64
2pq = 1 - 0.2 - 0.64 = 0.16
2pq = 0.16 × 10000
2pq = 1600
Therefore, the closest to the number of flies expected to be heterozygous for the amylase mutation assuming all conditions of Hardy-Weinberg equilibrium are met is 1600 flies.
30 !!!
Around each electron that orbits an atom's nucleus ______.
A) a magnetic field
B) an electric current
C) a positive charge
D) a negative charge
Answer:
the answer is D) a negative charge
Answer:
a negative charge
Explanation:
plz can i get brainliest:)
What would you tell a classmate who claims that food is destroyed when you eat it?
Answer:
I would say "yes true", when you swolowing your food, your stomach is breaking down all of the pieces that you ate and taking apart all the nutrients that are in your burger or your hot dog or whatever you just ate.
Explanation:
Hope this helps
"Yes true," since your stomach is dissolving all of the food bits you ate and dissolving all of the nutrients in your hamburger, hot dog, or whatever you just ate.
How does food break down in the stomach?Peristalsis forces the food into your stomach after you have swallowed it. Stomach. Your stomach's lining contains glands that produce stomach acid and digestive enzymes.
These digestive liquids are mixed with the meal by the muscles in your stomach.
The meal is broken down into much smaller, digestible bits by the stomach muscles as they churn and combine it with digestive secretions that include acids and enzymes.
Therefore, the digestion that takes place in the stomach requires an acidic environment.
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Sexual reproduction results in offspring that are *blank*
from both parents?
A. different
B. same
C. opposite
D. none of these
Answer:
I would put unique but since that's not a choice, probably different
Explanation:
Answer:
A. Different
Explanation:
In sexual reproduction, the offspring inherits traits from both parents. They are not an exact copy of either but have traits from both. Hope it helps :)
Identify the 3 types of natural selection indicates by each graph (please include written descriptions of each!!)
Answer:
Graph A: Directional Selection
Graph B: Stabilizing Selection
Graph C: Disruptive Selection
Explanation:
Natural selection as a driving force of evolution cam be defined as a process that a population of organisms undergo in other to become adapted to an environment and survive to produce offspring that are fitter.
Thus, the following graphs represents the three types of natural selection:
Graph A: Directional Selection
Directional selection occurs when one extreme trait is favoured over others by selective pressures.
The graph shows that only one extreme trait is favoured as the population that survives seem to have majorly a particular extreme trait.
Graph B: Stabilizing Selection
In this type of natural selection, neither of the extreme traits are favoured by selective pressures. Therefore, intermediate trait become favoured over the other extreme traits.
Graph C: Disruptive Selection
Selective pressures works against the intermediate trait while both extreme trait at the spectrum are well favoured, which become more established in a population against the intermediate trait.
THIS IS DUE TODAY!!! if someone knows how to do this please help!!
Answer:
I do not know this
Explanation:
i cant
The amount of solar radiation received by the earth is greatest
at
a
The equator
b The mid-latitudes
С
The poles
d None of the above
Select the best answer for the question
19. What are two United Nations Sustainable Development Goals?
A Wealthier economy and zero hunger
B. Less traffic and more solar power
C. Smaller population and less pollution
D. Affordable and Clean Energy and Responsible Consumption and Production
streptococcus diacetilactis hipotesis
Answer:
What do u need help with?.
Explanation:
Answer: its a bacteria
Explanation:
HELPp me plz is it A,b,c,d make sure you choose the rite one
Answer:
c ) cutting down all trees in a forest
Explanation:
cutting down trees is bad for the environment
Answer:
C. Cutting down all trees
Explanation:
The table below contains information for five animals.
Class: ___________
Which animal is the least related to the others? A. Aardwolf
B. Grey Wolf
C. Lion
D. Blue Whale
Answer:
Explanation:
Option D blue whale is the correct answer
The importance of the many valves found within the heart is that they
A.Help to increase blood pressure
B.Keep the blood flowing in the proper direction in the heart
C.Separate oxygenated from deoxygenated blood
D.Help decrease blood pressure