Answer:
sperm must swim through water to reach and fertilize eggs
Because of mitosis, all cells, differentiated or not, except for sex cells have ______ DNA from the parent to daughters cells.
a.) identical
b.) different
c.) similar
Answer:
a.) identical
Explanation:
Mitosis creates two identical daughter cells that each contain the same number of chromosomes as their parent cells.
account for the result obtained on the Strip when put in strong salt solution
Answer:
qoi4f
ogfugc2bcgoue2edgd3ugiudgi1edo1dbqouefgfe2
How can risk factors for circulatory disease be controlled? Justify your answer
Answer:
eat healthydont do alchoholdont do smoking of any type (cigaretter, hookah, marihuana)be physically active lower your stress; dont be under pressure when you are causing itstay at a healthy and average weight (stay away for underweight and obesity)You place two fish in different sized tanks, after a month, you measure the length of the fish.
What is the manipulated variable and the responding variable?
Answer:
The manipulated variable is how many fish you put in the tank. The responding variable is how much the fish have grown.
Explanation:
A manipulative variable is the independent variable in an experiment or equation. It's called “manipulated” because it's the one you can change in the problem. A responding variable is something that “responds” to changes you make in an experiment. Hope this helps!
Why are sand dunes commonly found along the coast?(1 point) The salt in the water is needed to hold the sand together. The salt in the water is needed to hold the sand together. Moving water is needed to deposit the particles on the river bed. Moving water is needed to deposit the particles on the river bed. There is a lot of wind to carry the particles. There is a lot of wind to carry the particles. Heavy wave action is needed to move the sand.
it's the 2 one hope this help :)Answer:
Explanation:
How Dogs inherit traits? Make sure to include the terms traits and selective breeding.
Answer:
When conceived, a dog receives two copies of DNA—one from the father and one from the mother. Which pieces of DNA a dog inherits from each parent is completely random. Within each strand of DNA are genes. And these genes determine traits such as coat color, ear type, tail style and more
Researchers have identified and sequenced the genes encoding proteins associated with nuclear pores in both yeast and vertebrates. They have used these data to determine the amino acid sequences of these proteins and have applied molecular modeling techniques to predict the three-dimensional structures of the proteins. All contain nearly identical folding regions that may serve to hold lipid membranes in sharp curves. Because this finding has been demonstrated in both yeast and vertebrates (representing organisms that diverged long ago in evolutionary history), it provides evidence of a possible mechanism for the evolution of a subcellular structure. Which subcellular structure is this
Answer:
Endomembrane system
Explanation:
Jeff conducted a simple experiment on the effect of rising temperature on food. He concluded that while heat is useful for cooking food, it can lead to food spoilage if food is left outside in hot weather. He presented his results to his science class. How should the teacher and students respond if they are skeptical?
A.
Accept Jeff's results as true.
B.
Reject Jeff's conclusion.
C.
Repeat the experiment themselves.
D.
Be indifferent to Jeff's conclusion.
E.
Ask Jeff to stop experimenting with food.
Answer:
Repeat the experiment themselves.
Explanation:
Answer:
C. repeat the experiment themselves
Explanation:
River water carries:
Sandy soil
Alluvial soil
Loamy
Black soil
Answer:
Alluvial soil.............,.........
Answer:
sand soil and pebbles
Explanation:
sand soil , pebbles
what is the single most common and characteristic feature of sedimentary rocks?
Answer:
horizontal stratification, or horizontal beds that are deposited as sediments blanket an area.
Explanation:
Which observation led Mendel to the idea that parents passed only part of their genes to offspring?
○ A tall plant could transfer alleles for a short plant to the offspring.
○ A short plant always transferred alleles for a tall plant to the offspring.
○A short plant could transfer alleles for a tall plant to the offspring.
○ A tall plant always transferred the alleles for a short plant to the offspring.
which type of medium supports the growth of the widest range of bacteria
The medium that supports the growth of the widest range of bacteria is the enriched medium.
Agar plate mediums are used to promote the growth of certain bacterias needed for studies. Some bacteria respond well to one medium, but will not grow in another. For this reason, many kinds of mediums exist, including:
MinimalEnriched Selectivedifferentialand many others.
The Enriched medium supports the growth of the widest range of bacteria by containing a wide variety or nutrients and lacking in inhibitors like that of the enrichment medium which would not allow certain bacteria to grow.
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what is a 3x3 punnet square
Answer:
A Punnett square is a chart that allows you to determine the expected percentages of different genotypes in the offspring of two parents. A Punnett square allows the prediction of the percentages of phenotypes in the offspring of a cross from known genotypes.
Explanation:
please help!!!!!!!!!!!!!!!!!!
/ similiar chromosomes,one from each
parent
The exoskeleton of an insect provides a stiff, protective armor. Despite the protection, How might an exoskeleton be a disadvantage for growth and movement?
Answer:
They can’t expand or stretch with out a synthesize a new exoskeleton underneath the old one and then sheds or molt the original covering.
An Exoskeleton be a disadvantage for growth and movement because exoskeleton Restricts the growth of the organism due to its rigidity.
what is an Exoskeleton?In contrast to the interior skeleton of a human, an exoskeleton is the external skeleton that supports and protects an animal's body. Some of the larger exoskeletons are referred to as "shells" in common language.
what are the advantages of Exoskeleton?Having a hard covering on the outside in the form of an exoskeleton is a great defense against predatorsit helps to support the body and it's like wearing a portable raincoat that keeps the creature from getting wet or drying outIt also protects the fragile interior organs and muscles of the animal from harmwhat are the disadvantages of Exoskeleton?An exoskeleton provides a significant restriction on growth. Arthropods must exfoliate, shedding their old shell and growing a new one, because their exoskeletons do not grow with them
thus exoskeleton may provide protection to the insect but ristricts the growth of arthropod.
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Identify the independent variable from the following hypothesis: If the temperature of the room is increased, then the assertiveness of the students will decrease.
Answer:
The temperature is the Independent Variable
Explanation:
Moving materials through a cell membrane without using energy is called Blank transport
Answer:
passive
Explanation:
what can we infer if we see a large number of mitochondria in a cell?
Answer: It means the cell has a high metabolic demand.
Explanation:
A high metabolic demand means that the cell requires a large amount of energy released in the process called cellular respiration. The mitochondria are where most of the energy of the cell is made.
lipids are stored in an?
Answer:
adipose tissue
Explanation:
hope this helpssssssss
The human skeleton has 206 bones. The human skull has 22 bones. What percentage of human bones are skull bones?
Answer:
11% rounded
Explanation:
22/206 = .106796
Hope this helps, have a great day!!!!!
Answer:
10.6796116504854%
Explanation:
explain how transport across the plasma membrane is related to the homeostasis of the cell.
Transport across the plasma membrane is fundamental for maintaining an equilibrium state in the cell.
The cells need to carry out different metabolic processes such as reproduction, growth, differentiation, etc.Many of these processes require the presence of certain substances as well as concentration gradients to be performed.Moreover, the cells also need to eliminate waste products that otherwise would be toxic for them.In conclusion, transport across the plasma membrane is fundamental for maintaining an equilibrium state in the cell.
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what part of the femur articulates with the patella?
Answer:
The femur is the longest bone in the human skeleton. It functions in supporting the weight of the body and allowing motion of the leg. The femur articulates proximally with the acetabulum of the pelvis forming the hip joint, and distally with the tibia and patella to form the knee joint.
Explanation:
Really need help help
Answer:
The only way to tell the difference is the time of day -- the waxing crescent moon is seen in the evening and the waning crescent is seen in the morning. ... The moon takes 29.5 days to orbit the Earth (almost a month), meaning the waxing phases of the moon happen on different dates each month.
food Web
please help
a. Producer: Land plants and tiny water plants.
a. Three consumers: Slug, insect, and newt.
b. Food chain with six levels: Land plants, insects, diving beetle, small, perch, and heron.
c. Small fish eat diving beetle and water fleas.
d. Heron and perch each small fish.
e. Food will decrease for foxes and herons in the food web.
a. Within the given food web, land plants and tiny water plants serve as the primary producers. They capture energy from the sun and convert it into usable energy through photosynthesis.
b. Moving along the food chain, the insects, such as caterpillars or grasshoppers, serve as a food source for other organisms.
c. The land plants provide energy to the insects, which in turn provide energy to the diving beetle. The diving beetle sustains the small perch, which is then consumed by the heron.
d. Heron and perch each small fish in the given food web. Perch and Heron are consumers of small fishes.
e. In the given food web, if there were a decrease in the population of small fish such as perch and water fleas, which are part of the diet of herons and small fish respectively, the herons and foxes would experience a decrease in their food supply. This would likely have an impact on the population dynamics and interactions within the food web, potentially leading to changes in the abundance and distribution of the organisms involved.
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What are the products of the light reactions used for during in the dark reactions of photosynthesis?
Answer: Glucose and Oxygen
Explanation: The two products of the light dependent reactions in photosynthesis are glucose and oxygen and are produced through the reconstruction of water and CO2 in the air. The light independent reactions also known as cellular respiration is a process identical to the human cellular respiration where glucose is broken down and rearranged with oxygen to create mechanical energy leaving CO2 and H2O left over.
The reactants for a biochemical reaction are C6H12O6 + 6O2. What will be the products for this reaction, and where does the reaction take place?
Answer:
Glucose ( 6 carbon atoms) is split into 2 molecules of pyruvic acid (3 carbons each). This produces 2 ATP and 2 NADH. Glycolysis takes place in the cytoplasm. This breaks down the pyruvic acid to carbon dioxide.\
It takes place both in plants and animals.
Which type of molecule is least able to cross the membrane without transporters?
Answer:
Only small hydrophobic molecules can enter the cell without specialized transporters. Water enters the cell through aquaporins and bulky polar or charged molecules need a channel or carrier protein transporter.
Explanation:
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If Ajanae dissolves 60 mL of dry Kool-Aid into 540mL of water, what percentage of the drink is
dry Kool-Aid?
what evidence suggests that birds evolved from theropod dinosaurs?
Answer:
Feathers
Explanation:
For a long time, feathers were regarded as a uniquely avian feature. Bur recent fossil evidence suggests that feathers, too, evolved in theropods before birds.
what major event leads to the release of neurotransmitters in the synapse?