Which is true if a population is in genetic equilibrium
a) Evolution is occurring
b) new species are evolving
c) allele frequency is changing from one generation to the next
d) allele frequency is remaining the same from one generation to the next
Parent traits are always expressed in offspring
O True
O False
Answer:
True
Explanation:
The ginetic information from the parents will be passed on to their young??
Seeds are produced during sexual reproduction. Describe one function of the seeds produced by plants
Answer:
they (the offsprings) grow into new plants
Explanation:
Which of the following defines the term microflora?
small, soil-dwelling animal parasites that feed on flowers
very small flowers, often found in compound clusters or heads
small, soil-dwelling non-animal microorganisms
a persistent contamination of the soil that leads to small flowers
Answer:
The answer of this question is small , soil - drewling non animal microorganisms
As a naturalist, you are responsible for training volunteers in the identification of the types of amphibians. The volunteers will use this information to correctly describe the animals to school groups that will visit your nature center. The training documentation for the volunteers lists important characteristics of the different groups of amphibians, but you notice that one of the items on the list is incorrect. Indicate which description is not correct.
A. Frogs, toads, and most salamanders have four legs whereas caecilians are legless.
B. While some frogs may advertise their distasteful nature by bright coloration, salamanders always have cryptic coloration.
C. Some adult salamanders retain larval characteristics such as external gills.
D. Most caecilians can be found burrowing in the soil of tropical forests.
Answer:
B. While some frogs may advertise their distasteful nature by bright coloration, salamanders always have cryptic coloration.
Explanation:
Amphibians are vertebrates which can live both on land and in water. they are cold-blooded and therefore, depend on warmth from sunlight to become warm and active. Their young live fully in water respire using gills. The adults have moist skins through which they respire and therefore, live in moist places or near water to keep their bodies from drying out. Many adult amphibians also have poison-producing glands in their skin to ward off predators. Poisonous amphibians usually display a warning coloration. . The species in this group include frogs, toads, salamanders, caecilians and newts.
Considering the above descriptions:
A. Frogs, toads, and most salamanders have four legs whereas caecilians are legless.
True: Caecilians are a group of limbless, wormlike or serpentine amphibians that mostly live in underground burrows or in substratum of shallow streams.
B. While some frogs may advertise their distasteful nature by bright coloration, salamanders always have cryptic coloration.
False: Some frogs such as poison frogs as well as some salamanders such as the California newt and the red eft which a brightly colored terrestrial juvenile form of the eastern newt is highly poisonous. advertise their distasteful nature by bright coloration.
C. Some adult salamanders retain larval characteristics such as external gills.
True: Some adult salamanders retain larval characteristics such as external gills. e.g. species such as the mudpuppy (Necturus maculosus) retain their gills throughout their lives.
D. Most caecilians can be found burrowing in the soil of tropical forests.
True: Caecilians are a group of limbless, wormlike or serpentine amphibians that mostly live in underground burrows or in substratum of shallow streams.
If a sperm containing 46 chromosomes fused with an egg
containing 46 chromosomes, how many chromosomes would
the resulting fertilized egg contain?
Do you think this would create any problems in the developing
embryo?
Answer:
Explanation: yes would cause problems with the embryo because a sperm and egg have 23 chromosomes each half mom half dad.
The sperm cell and the egg cell contain 46 chromosomes each, 46 + 46 = 92; a developing embryo would not survive if it contained 92 chromosomes.
What is fertilization?This process results in the restoration of the diploid state, the formation of a zygote through the process of egg activation, and the beginning of a series of mitotic divisions that leads to cell differentiation and embryo development.
When a sperm and a female act during sexual contact, an egg is created and implanted in the female's uterus, resulting in fertilization. The sperm enters the fallopian tube, passes through the ovum's zona pellucida layer, and fuses with the egg to create the zygote (fertilized egg).
Therefore, 46 chromosomes are found in each sperm and egg cell, for a total of 92 chromosomes. An embryo would not survive if it had 92 chromosomes.
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Can someone please do a summary on how wind works? 7-9 sentences please I will mark brainliest!
Answer:
Wind is the movement of air. It forms when air moves from areas of high-pressure to areas of low pressure. These pressure differences are caused by temperature differences on Earth's surface. The movement is a result of different places on Earth receiving different amounts of energy from the sun. Two types of winds are global and local. Global wind systems determine weather patterns for the entire planet. Local winds are sea and land breezes that occur due to uneven absorption of solar energy.
Explanation:
hope this helps :D
ATP (adenosine triphosphate) stores energy in the bonds between its
A.nucleotides
B.carbon dioxide
C.hydrogen atoms
D.phosphate groups
Answer:
Phospate groups
Explanation:
Which statement best explains why a plant cell has chloroplasts but most animal
cells do not?
Answer:
Both animal and plant cells have mitochondria, but only plant cells have chloroplasts. Plants don't get their sugar from eating food, so they need to make sugar from sunlight. Because animals get sugar from the food they eat, they do not need chloroplasts: just mitochondria.
Explanation:
Someone please help ASAP please
Answer:
is D ------------------------
The earth's crust is:
O thicker than the other
O layers mostly made of basalt and granite
O one big mass of rock called a plate
O thinner at the poles
PLEASE HELP What is a similarity between the first-quarter moon and the third-quarter moon? (1 point)
The moon is located between Earth and the sun.
The moon is always waning in both phases.
The moon is always waxing in both phases.
The moon is located perpendicular to Earth and the sun.
Answer:
The moon is located perpendicular to Earth and the sun.
What is the difference between genetic and chromosomal mutations
Answer:
Gene mutation may alter the function of proteins in the body. Chromosomal mutations can be either an alteration of chromosome structure or chromosome number. ... The main difference between gene mutation and chromosomal mutation is the magnitude of alterations that occur in the genetic material by each type of mutation.
Will pls answer my question im tryna get this done before the due time ends
Answer:
The surface area has a rocky platform ... which can lead to a land slide by chunks of the of the rocky surface coming off and also taking more rock pieces with it . Concluding too the fact that the areas are very close together which can make it more compatible for a land slide to form.
Hope I helped .
Explanation:
what are important of some natural things
Answer:
Because it helps us by different ways.Like forests helps us by taking carbon dioxide and by throwing out Oxygen. Water helps us in different types of household works like cooking,bathing, e.t.c
Answer:
mostly natural things are the base for our man made stuff..so without natural things no made made things would exist
hope my ans helps
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Please select the word from the list that best fits the definition
Measures how difficult it is to change or stop the movement of an object
Answer:
Momentum.
Explanation:
a measure of how difficult it is to stop a moving object; equals the product of mass and velocity.
I hope this helps a little bit.
Eukaryotic cells are larger than prokaryotic cells.
True
False
I NEED HELP ASAP
1. Dylan puts two magnetic toy trains very close to each other on a track. What will happen next, and why?
A. The trains will not move because the magnets are not touching
B. The trains will move closer to each other because the magnetic force will pull the trains together
C. The trains will move away from each other because the magnetic force will push the trains apart.
D. The trains will move away from each other because the magnets are not touching.
Answer:
b
Explanation:
magnet pull toward each other they can't go far.
How many nucleotides are there in 5 codons?
Who can help me
Answer:
15 because one codon has 3 nucleotides
Explanation:
Explain what happens to the incoming solar radiation on a cloudy day, and how this affects the temperature at Earth's surface.
Answer:
During the day, the earth is heated by the sun. If skies are clear, more heat reaches the earth's surface (as in the diagram below). This leads to warmer temperatures. However, if skies are cloudy, some of the sun's rays are reflected off the cloud droplets back into space.
Explanation:
Which of the following question is TRUE and FALSE regarding the plasma membrane?
Answer:
2 is the answer its correct
Which kind of action is a cause of air pollution? A. Trash is dropped in a national wildlife preserve. B. Poisons are released into a major river. C. Tuna are fished to extinction. D. Gasoline is burned by a car engine.
Answer: D
Explanation: when gasoline is burned by the car, it releases gas which pollutes the air.
What factors play a role in how fast, far, or what direction DNA fragments travel for gel electrophoresis?
Explanation:
DNA is negatively charged, therefore, when an electric current is applied to the gel, DNA will migrate towards the positively charged electrode, Shorter strands of DNA move more quickly through the gel than longer strands resulting the fragments being arranged in order of size.
Hope it helped of it did mark as brainliest!
What are the different types of leaves that plants have?
Answer:
There are two different types of leaves – simples leaves and compound leaves. The other types of leaves include acicular, linear, lanceolate, orbicular, elliptical, oblique, centric cordate, etc. They perform the function of photosynthesis and help in the removal of excess water from the aerial parts of the plant. The most obvious aspect to examine is the shape of the leaf. If it is an uninterrupted shape, it is simple. If the shape divides into smaller leaf sets the leaf is compound. Identifying plant leaves that are compound divides them into subsets.
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Research a disorder or disease caused by issues involving blood pressure.
Topic
Describe the location of the
heart.
Given is a strand of DNA, fill in the corresponding RNA strand and find which amino acids that strand codes for.
Please help!
Answer:
RNA: [tex]A-U-G-U-A-U-A-C-G-G-A-U-U-G-A[/tex]
Amino acids: Methionine, Tyrosine, Threonine, Aspartic Acid
Explanation:
1) First, transcribe the DNA to RNA. For each nitrogenous base (to put it simply, the letter) listed in the DNA strand, write the strand of RNA with the matching nitrogenous base. Remember that, when transcribing, the thymine (T) from DNA can pair with adenine (A) in the RNA, adenine (A) pairs with uracil (U), and cytosine (C) and guanine (G) always pair with another.
DNA: [tex]T-A-C-A-T-A-T-G-C-C-T-A-A-C-T[/tex]
RNA: [tex]A-U-G-U-A-U-A-C-G-G-A-U-U-G-A[/tex]
2) Next, to find the amino acids the strand codes for, read the nitrogenous bases in the RNA from left to right in groups of three, or codons. Then, using a codon chart, find which amino acid the group of three bases codes for. This gives the following answer below. (Remember that the codon UGA stops the translation and therefore does not code for an amino acid.)
Amino acids: Methionine, Tyrosine, Threonine, Aspartic Acid
Amino acids: Methionine, Tyrosine, Threonine, Aspartic Acid
What are amino acids?Amino acids are the building blocks of protein. Proteins are long chains of amino acids. Your body has thousands of different proteins that each have important jobs. Each protein has its own sequence of amino acids.
Amino acids are organic compounds that contain both amino and carboxylic acid functional groups. Although hundreds of amino acids exist in nature, by far the most important are the alpha-amino acids.
The human body uses amino acids to make proteins to help the body: Break down food. Grow. Repair body tissue.
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Which human activity DOES NOT contribute to increasing atmospheric CO2
concentrations? *
Which of the following is a result of government attempts to increase energy efficiency?
a.
American Council for an Energy Efficient Economy
b.
Alliance to Save Energy
c.
Energy Star
d.
All of the above
Answer:
C. Energy Star
Explanation:
The government attempt to increase energy efficiency is carried on by American Council for an Energy Efficient Economy.
What is the use of energy?Energy has become a major key player in today's world as technology can not be developed independent of energy supply. As such there is a huge need for the conservation of energy.
Therefore, the government attempt to increase energy efficiency is carried on by American Council for an Energy Efficient Economy.
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determine the phenotypes of the offspring if the genotypes of the mare was LLGg and the stud was LlGg
Answer:
hope this helps
Explanation:
A monohybrid cross is one that involves only one trait. Here the example is used of stem height in pea plants. Tall plants are dominant to dwarf plants,