Answer:
cilia, legs, wings, arms, fins, or tails are sometimes referred to as locomotory organs or locomotory structures.
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What advantages do diatoms obtain from sexual reproduction?a. increased genetic variability.b. increased ability of populations to respond to environmental change.c. evolutionary potential.d. regeneration of maximal cell size for the species.d. all of the above.
Answer:
The correct answer is: option D. all of the above.
Explanation:
In sexual reproduction, two opposite gender gametes are fused together to form a zygote by the process called fertilization which forms the new organism that is genetically unique.
In diatoms, sexual reproduction caused various types of advantages such as higher or enhanced genetic variability as recombination occurs. It also helps the ability to responding to environmental change Increasing the population or species size and other.
Thus, the correct answer is: option D. all of the above.
Community definition
Answer: Multiple populations in a given area
What is the composition of hair?
Answer:
The hair is made up of 95% keratin, a fibrous, helicoidal protein (shaped like a helix) that forms part of the skin and all its appendages (body hair, nails, etc.). Keratin is synthesized by keratinocytes and is insoluble in water, thus ensuring impermeability and protection for the hair.
Explanation:
What is the internal and external adaptation in a leaf for photosynthesis? Please give a clear short answer (prefer in bullet points). I will give brainliest to fastest answer
Answer:
They are adapted for photosynthesis by having a large surface area, and contain openings, called stomata to allow carbon dioxide into the leaf and oxygen out. ... The cells inside the leaf have water on their surface. Some of this water evaporates, and the water vapour can then escape from inside the leaf.
Answer:
▪︎leaf with large surface area
▪︎dark coloured leaf for maximum sunlight absorbtion
▪︎has stomata openings to allow carbon dioxide diffuse in the leaf
▪︎It has the green pigment :chloroplast inside to absorb sunlight
identify and label each part of the eukaryotic cell
heres your diagram with labeling
Eukaryotic cells are enclosed in the membrane, and the nucleus is bound by a nuclear membrane. Major parts of the eukaryotic animal cell are the nucleus, cytoplasm, mitochondria, Golgi, ER, etc.
What are animal cells?Animal cells are eukaryotes that lack cell walls but have almost the same components as plant cells. The cytoplasm is the component of the cell where all the organelle lies.
The nucleus is the central organ that is involved in genetic replication and transcription and translation. Mitochondria are involved in the metabolic process and release of energy.
Golgi are involved in the packaging and transport of the proteins and ER produces proteins that are transported to the Golgi. Vacuoles though are present in small quantities they aid in the accumulation and elimination of the waste product.
Refer to the image attached below of the animal eukaryotic cell.
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Which process begins the formation of sedimentary rock?
the movement of sediment
the cementation of rock sediment
the breakdown of rock into sediment
the buildup of sediment in one location
Answer: C
Explanation:
Because sedimentary rocks have layers and are made of of those layers which are made up of the breakdown of rock into sediment
PLEASE HELP AGAIN
What type of light wave interaction is taking place in the image below?
A. Reflection
B.Refraction
C.Diffraction
D.Transparency
There are 12 apples 14 oranges and 16 bananas in a fruit basket.what is the ratio apples to bananas the answer choices are A 1:12 B 1:16 C 6:7 D 3:4 E 2:7
Answer:
The answer is A
Answer:
mannn this aint ittt
Explanation:
dawggg
A lock is to a key as a neurotransmitter is to a O battery O receptor site O myelin sheath O motor cell
Answer:
Receptor Site!
What structure encloses the pituitary gland?
Answer: Im pretty sure that it is the sella turcica
Explanation:
A farmer in Minnesota plants some tomato seeds in early spring. She plants them outdoors in soil and adds water every day. A few weeks later, nothing has happened. What is the most likely reason the seeds have not germinated?
Answer:
Other factors could affect the reason the seed didn't germinate because under suitable conditions depending on the variety it should germinate within 5 to 10 days from planting. However, the most likely reason it didn't germinate must be the Temperature.
Explanation:
From the question above, the farmer lives in Minnesota and she planted between March and May, meaning the temperature was way cold which is not suitable for tomato. One other valuable point was she planting outdoor which could also affect the performance of the tomato seedlings. Planting in early spring doesn't necessarily mean bad as some seeds might thrive under conditions explained above. For tomato, depending on temperature because too high temperatures could also affect the viability of the seeds. In Minnesota in early spring, it would have been better if she planted indoors to raise the temperature before transplanting as a balanced night temperature is also important for the seed viability.
Some other factors to be considered for seeds to germinate:
1. Water
2. Type of the soil
3. Seed depth in the soil
4. Nature of seed coat
5. Oxygen
6. Light
A block of wood with a density of 10g/cm^3 is cut in half. What would the
expected density of the two halves be? *
A The density would double.
B The density would halved.
C The density would remain the same.
D The density would increase by a quarter.
the answer to ur problem above is (b)
Which statement about enzymes is true? A. An enzyme functions to decrease the rate of a chemical reaction. B. Enzymes are proteins that function as catalysts in nonliving things. C. Each enzyme can catalyze many different biochemical reactions. D. Enzymes and substrates fit together like a lock and key.
Enzymes are proteins that are like keys and fit into the lock called substrate to carry out the reactions. Thus, option D is accurate.
What are enzymes?Enzymes are involved in metabolic reactions and act as catalysts by speeding up the reactions. They do not decrease the activity function of the rate of reactions in the living things.
A specific type of enzyme can catalyst only a single type of substrate and are unique for a reaction. Enzymes and substrates act as lock and key that fits together to carry out the reaction.
The active site of the enzymes is unique and fits into the substrate to form the complex resulting in a product formation.
Therefore, option d. enzyme and substrate are lock and key.
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Which of the following is an organic molecule?
a. carbon dioxide (CO2)
b. water (H2O)
c. methane (CH4)
d. hydrochloric acid (HCl)
e. more than one of these is an organic molecule
Can somebody help me ASAP , I’m timed!
Answer:
B.
Explanation:
B. carbon decays relatively quickly.
Which two organelles work together to create a functional protein.
Answer:
J
Explanation:
The two organelles that work together to create a functional protein are the ribosome and the endoplasmic reticulum (ER).
What if the function of ER and ribosome?The ribosome is responsible for synthesizing the protein, while the endoplasmic reticulum provides the environment in which the protein can fold into its functional 3-dimensional structure.
In the cytoplasm, the ribosome reads the genetic information in messenger RNA (mRNA) and uses it to assemble a chain of amino acids, forming a protein. The ribosome then transfers the newly-formed protein to the endoplasmic reticulum.
The endoplasmic reticulum is a network of membranes that runs throughout the cytoplasm. It is involved in many cellular processes, including the folding and modification of newly-synthesized proteins. In the ER, the protein undergoes a series of post-translational modifications, such as the addition of carbohydrates, lipids, or phosphate groups. These modifications help the protein fold into its functional 3-dimensional structure and determine its final function in the cell.
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2. How is the pubic symphysis different in males and females?
what does an antibiotic treat?
Answer:
Explanation:
Antibiotics are strong medicines that treat bacterial infections. Antibiotics won't treat viral infections because they can't kill viruses. You'll get better when the viral infection has run its course. Common illnesses caused by bacteria are urinary tract infections, strep throat, and some pneumonia.
Answer:
Antibiotics are strong medicines that treat bacterial infections.
Explanation:
I hate biology and the teacher can you help me with this question
Answer:
B
Explanation:
. Name the cells that are produced by the testes and ovaries.
Answer and explanation:
In the female of the species the reproductive cells are the egg cells, and in the male the reproductive cells are the sperm. The male gonad, the testicle, produces sperm in the form of spermatozoa. The female gonad, the ovary, produces egg cells. Both of these gametes are haploid cells. The testes contain germ cells that differentiate into mature spermatozoa, supporting cells called Sertoli cells, and testosterone-producing cells called Leydig (interstitial) cells.
what do you think the difference between simple and complex carbohydrates is?
Answer:
Complex carbohydrates are present in foods such as bread and pasta. Simple carbohydrates are in foods such as table sugar and syrups. Complex carbohydrates contain longer chains of sugar molecules than simple carbohydrates. The body converts these sugar molecules into glucose, which it uses for energy.
Explanation:
Hope that helps!
Question 10 (2 points)
(01.03 LC)
If a box on a pan balance reads 10 kg, you can be confident that the number represents the object's
(2 points)
Оа
hardness
Ob
mass
ос
temperature
Od
weight
Submit
Saved at 5:48 am
Time left for this
assessment:
11:20
Answer:
mass
Explanation:
because the unit kg is S.I unit of mass
DNA differs from RNA because DNA
contains the sugar ribose rather than the sugar deoxyribose.
consists of a single rather than a double polynucleotide strand.
contains phosphate groups not found in RNA.
contains thymine in place of uracil.
Answer:
Yes all above difference is correct
Science question:
Explain the differences between crystal and crystallization
The sequence of amino acids in a protein can be though of as its _______ structure.
Answer:
molecular
Explanation:
________ is not required for anaerobic respiration.
Ruthie has a pet goldfish. After several months the goldfish quits growing. Ruthie's Mom told her the goldfish might have stopped growing because the tank is too small. Ruthie measures the size of her goldfish in its current tank and then puts the goldfish in a larger tank. After 2 months the goldfish is now 1 cm longer.
A. Independent Variable=
B. Dependent Variable=
C. Control=
Answer:
independent: fish tanks
dependent: goldfish
control can he anything unchanged: the water, fish food, temperature...
The variables in the study are the independent variable is fish tank, dependent variable is goldfish, and control is the water, fish food, and temperature.
What are experimental variables and control?
The experimental variables can usually one or several of the sample attribute categories which are used in study. It describes all the factors that differ between the test and the control samples in the study, which we are investigating. Example of experimental variable is disease.
The independent variable in an experimental study is what the scientists can change in the experiment. The dependent variable is what the scientist measures in the experiment, or the outcome of the study. The controlled variables are all the features which are kept the same throughout the experimental study.
The independent variable in the experimental study is the fish tanks, the dependent variable is the goldfish, and the control can be anything which remains same throughout the experiment is the water, fish food, temperature.
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please help...Which statement about the Sun is true? A:The Sun makes energy on the inside. B:The Sun uses energy from the planets. C:The Sun reflects energy off the stars. D:The Sun takes energy from outer space.
HELP PLEAASSSEEE :,,,,)
Answer:my guess is C or D
sorry if im wrong on both of them
Answer:
c
Explanation:
I got it right
hope it helps (:
What are the different sizes of carbohydrates
Cellulose, starch, glycogen, and most sugars