Answer:
1. Write out your key in terms of what is dominant and what is recessive.
2. Determine the genotypes of each parent and write the cross.
3. Figure out what kind of gametes each parent may produce.
4. Set up a Punnett square for your making.
Explanation:
A dihybrid cross must be a 4 x 4 square which two variables for each square.
Select all that apply.
Which of the following statements are true?
A purebred organism can either be TT or tt.
The combination of two genes determines the genetic trait of an organism.
Recessive genes will sometimes be masked by dominant genes.
It is possible for two genetically different plants to have the same phenotype.
Answer:
A purebred organism can either be TT or tt.
It is possible for two genetically different plants to have the same phenotype.
Explanation:
Which of these best describes Earths crust? (
Inner layer consisting of two parts
Middle layer, density increases with depth
Top portion called asthenosphere, thickest layer
Thinnest under the oceans and thickest under continents
Answer:
Thinnest under the oceans and thickest under continents
Explanation:
Answer: Thinnest under the oceans and thickest under continents
Scientists are looking to determine the primary productivity of a lake by analyzing its oxygen net primary productivity. How are scientists able to measure how much oxygen is used during a plant’s cellular respiration processes?(1 point)
by observing cellular respiration under bright light conditions
by observing cellular respiration only when photosynthesis occurs
by observing cellular respiration by studying biomagnification
by observing cellular respiration under the absence of light
Question: "Scientists are looking to determine the primary productivity of a lake by analyzing its oxygen net primary productivity. How are scientists able to measure how much oxygen is used during a plant’s cellular respiration processes?"
Answer: "Out of all the options given, the best way for scientists to have the chance to measure the usage of oxygen during a plant's cellular respiration processes would be by 'observing cellular respiration under the absence of light'. So, I would say the best option would be Option D. "
To measure how much oxygen is used during a plant’s cellular respiration processes, scientists did by observing cellular respiration in the absence of light, hence option D is correct.
How to measure oxygen level?As a result, in the absence of photosynthesis, there would be no glucose or oxygen for respiration, and since photosynthesis requires carbon dioxide, only anaerobic respiration would be possible.
Examining a lake's oxygen net primary production, researchers hope to ascertain the lake's primary productivity. By monitoring the output of oxygen or the intake of carbon dioxide, primary productivity is typically calculated. The standard unit of measurement for production rates is grams of organic carbon per unit area per unit of time.
Therefore, observing cellular respiration in the absence of light.
Learn more about cellular respiration, here:
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I NEED HELP PLEASE A BIOLOGY QUESTION !!! I have to turn it in now please help !!!
Discuss the bone under the following headlines: Composition, type, parts and structure.
Answer:
Explanation:
hgd
Answer:
Bones are composed of two types of tissue:
1. Compact (cortical) bone: A hard outer layer that is dense, strong, and durable. It makes up around 80 percent of adult bone mass.
2. Cancellous (trabecular or spongy) bone: This consists of a network of trabeculae or rod-like structures. It is lighter, less dense, and more flexible than compact bone.
Also found in bones:
osteoblasts and osteocytes, responsible for creating bone
osteoclasts or bone resorbing cells
osteoid, a mix of collagen and other proteins
inorganic mineral salts within the matrix
nerves and blood vessels
bone marrow
cartilage
membranes, including the endosteum and periosteum
Explanation:
HURRYYY
This bowling ball is rolling at a rate of 19.5 msec19.5 msec. An additional force of 33 Newtons is applied in the direction the ball is rolling.
What effect would this added force MOST LIKELY have on the ball's motion?
The ball's velocity will increase.
The ball's velocity will decrease
The ball's velocity will remain the same.
The ball's direction will change.
Which of the following is true about moss sporophytes?
a. Sporophytes perform photosynthesis. C. Sporophyttes contain a single spore.
b. Sporophytes depend on the gametophyte for d. Sporophytes are very large.
nutrients.
Answer: sporophytes photosynthesise, particularly when immature, but depend on gametophytes for at least 50% of nutrient requirements
Explanation: In mosses, the gametophyte generation is the dominant generation unlike in higher plants. The diploid sporophyte generation produces several spores per capsule.
Answer:
c
Explanation:
describe the subcellular structures that found in all bacteria
Answer:
The subcellular structures found in bacteria are: cell wall, cytoplasmic membrane, cytoplasm, ribosomes, vacuoles, plasmids, nucleoid —circular DNA— and annexes, such as pili, cilia and flagella.
Explanation:
Bacteria are unicellular prokaryotic organisms, characterized by a simple structure, lacking a nucleus and most of the organelles, with a circular DNA molecule that is free in the cytoplasm.
The sub-cellular structures present in the bacetry are
Cell wall, surrounding the plasma membrane, composed of peptidoglycan. Plasma membrane of lipidic nature, which covers and protects the cytoplasm. It is possible to find in some bacteria two plasma membranes.Cytoplasm, lacking endomebrane system. Nucleoid is not a true nucleus with nuclear membrane, but corresponds to circular DNA that is free in cytoplasm. Plasmids are fragments of DNA that are associated with the nucleoid, useful for the exchange of genetic material with other bacteria. Ribosome, which participate in the synthesis of bacterial proteins.Vacuoles are structures that are responsible for the storage of reserve substances, useful for bacterial metabolism. The structures annexes to bacteria are the pili, cilia and flagella. The pili are small villi present on the bacterial surface and participate in the process of intercellular communication and conjugation in prokaryotes. Cilia and bacteria serve for the mobility of bacteria.can someone please help and break down the miosis process for me
Answer:
Meiosis is a process where a single cell divides twice to produce four cells containing half the original amount of genetic information.
Explanation:
meiosis is a process where a single cell divides twice to produce four cells containing half the original amount of genetic information.
these cells are our sex cells__ sperm in males, egg in females
During meiosis one cell? divides twice to form four daughter cells
p.s I know u got the answer but I still try to give u mine
Replicate the following DNA sequence: TTA
Answer:
AAT
Explanation:
use AT GC to replicate dna sequence
whats this,in order?
Answer:
1. Individuals in a species vary in characteristics because of differences in their genes.
Individuals will be born with various characteristics due to their genes for instance some people are short and other are tall.
2. Individuals have to compete when resources (such as food) are limited.
Resources are generally limited so individuals would have to compete t get those resources and survive.
3. Individuals with variations that help them get more of the resources are more likely to survive.
Some of the characteristics that these individuals have which are different will give them an edge and enable them to get more resources and thus survive.
4. Individuals that survive can pass their genetic variations on to their offspring.
The individuals that survive will now have offspring and will pass on their genes to their offspring which give give them the same edge their parents had.
5. Over time, there are more individuals with the variations that are well adapted to the environment.
Eventually there will be more of those offspring that can adapt as opposed to those who couldn't and keep dying out.
What is insects animal??
Answer:
if your asking if an insect is an animal than .. yes!.....and no!!..
Explanation:
well er- ``Insects are also animals, but they then diverge from humans and are classified as arthropods`` - on the web
Help needed ASAP Look at the picture
Answer
Igneous Rock
Explanation:
It's Igneous because its coming straight from the magma. This type of rock is basically a magmatic rock.
What is an Igneous Rock?
rock that forms when existing rock changes to a new rock because of heat and pressure
⊝
rock that forms by the process of compaction and cementation of sediments
⊝
rock that forms when melted rock (magma, lava) cools and hardens
Answer:
rock that forms when melted rock (magma, lava) cools and hardens
Explanation:
Igneous rock, or magmatic rock, is one of the three main rock types, the others being sedimentary and metamorphic. Igneous rock is formed through the cooling and solidification of magma or lava. The magma can be derived from partial melts of existing rocks in either a planet's mantle or crust.
Brainliest plz
Which of the following statements about reflective and refractive telescopes is not true?
a. Both require very little light to create an image
b. Both magnify distant objects
c. Both can be up to five meters in diameter
d. A refractive telescope uses a lens while a reflective telescope uses a mirror to magnify
Read the article and use the information to answer the question that follows. Nature vs. Nurture Define the terms "nature" and "nurture" in the context of the Nature vs. Nurture controversy.
The correct answer to this open question is the following.
Although you did not include the article or a link to it, we can comment on the following general terms.
The controversy between the two terms in the area of Psychology stems from de debate if the behavior in humans is inherited by the parents or it is acquired when the individual starts to socialize. This means that the two schools of thought are debiting on the idea of if the behavior is learned or if it is the product of the genetic.
So Nature for scientists is the information that is conveyed by genetics and is passed from parents to children. Here, biology and chemistry play a major factor.
On the other hand, Nurture can be understood as environmental factors that the individual is exposed to when it receives the external influence and starts to learn new things and how to react to these external influences.
Answer:
Nature refers to heredity, the genetic makeup of an individual while nurture refers to environmental factors an individual is exposed to in their lifetime.
PLEASE help QUICKKK, will mark first correct answer brainliest!!
Answer:
1) 20, 40.078, 20, 20,20,
2) proton, 4, 1
Explanation:
not an expert so I hope this is correct :)
Answer:
blank 1. 20
blank 2. 40
blank 3. 20
blank 4. 20
blank 5. 20
blank 6. proton
blank 7. 4
blank 8. 1
Explanation:
Describe how an organism's genotypes codes for their phenotype. In your answer use the vocabulary terms: Phenotype, genotype, DNA, mRNA and protein. Please dont answer if you dont know it.
Answer:
The organism's genotype encodes their phenotype because the genotype corresponds to the characteristic that is determined by genes —formed by fragments of DNA— which are transcribed into mRNA to be translated into amino acid sequences in the synthesis of proteins, determining the morphological and functional characteristics of an organism, that is, its phenotype.
Explanation:
Genotype corresponds to the genetic information contained in the DNA, according to the sequence of nucleotides in its molecular structure. This genotype includes characteristics or polymorphisms that define the appearance and function of living beings.
Each DNA molecule constitutes a chromosome, formed by genes —DNA fragments— each of which determines specific characteristics.
When DNA is transcribed into mRNA, information is being sent that is necessary for the incorporation of amino acids into a protein that is being synthesized. The proteins, in turn, determine morphological and functional characteristics that constitute the phenotype of an individual.
ANSWER ASAP FOR 45 POINTS
A population of crabs live on a light-colored sandy beach. In this environment there is a population of birds that eat the crabs. One year, there is a volcanic eruption near the beach and dark volcanic ash covers the beach. The sand is now much darker than it used to be. If scientists visited the island a year after the eruption, what would they likely see?
1. There are equal numbers of light crabs and dark crabs, because they are both adapted to the environment.
2. There are more light crabs, because they are better at obtaining food.
3. There are more dark crabs, because they are less likely to be seen and eaten by birds.
4. The eruption has caused all crabs to go extinct.
True Or False urgebt
Answer:
The answer is true
Explanation:
true
Which factor in this swamp is abiotic?
A. Grass
B. Trees
C. Algae
D. Water
Answer:
D. Water
Explanation:
Biotic factors are all living things, and they are derived from organisms. These include: fungi, plants, bacteria, archaea, protists, animals.
Abiotic factors are all nonliving things, and they are not derived from organisms. These include: air, soil, light, water, minerals.
In this case, grass, trees, and algae are all living things since they are derived from organisms.
On the other hand, water is not a living thing since it is not derived from organisms.
Let me know if this helps!
Answer:D water
Explanation:
I WILL GOVE BRAINLIEST!!!
Male and female reproductive cells are collectively known as:
Spores
Gametes
Pollen
Offspring
Answer:
gametes is the answer so the male and female reproductive cells are collectively know as gametes
Answer:
b gametes
Explanation:
These sex cells are also called reproductive cells or gametes.
I need help! I will give Brainliest if I can!
Answer:
1. Aa can make A and a
2. AA can make A
3. aa can make a
Explanation:
The gametes are the sex cells that consist of the n number of the chromosome in the cells and fused together to generates new diploid offspring in the next generation.
If a parent has Aa in its cell the gametes are produced are each has half of the number of the chromosomes or allele segregated and assorted independently in the gametes than each sex cell would have an A and a.
similarly, in the case of AA it can produce gametes A and A in each gamete and in the case, of aa it can produce gametes a and a in each gamete
Studying____
we infer how Pangea split into continents
Answer:
Scientists believe that Pangea broke apart for the same reason that the plates are moving today. The movement is caused by the convection currents that roll over in the upper zone of the mantle.
Explanation:
Answer: Pangea broke apart for the same reason that the plates are moving today. The movement is caused by the convection currents that roll over in the upper zone of the mantle.
Explanation: Scientists believe that Pangea broke apart for the same reason that the plates are moving today. The movement is caused by the convection currents that roll over in the upper zone of the mantle. About 200 million years ago Pangaea broke into two new continents Laurasia and Gondwanaland.
Show a cross between a short haired guinea pig (hh) and a longhaired guinea pig (Hh). Begin with a nice and neat punnet square!
(Please help me fill out the punnet square with the picture provided)
Answer:
Here's the punnet square
Explanation:
the top is the longhaired guinea pig (Hh), the side is the short haired guinea pig (hh).
hope this helped.
human blood has pH of 7.4. how do buffers in the blood affect pH?
[tex]\text{because if there are buffers that area could be saltier or sweeter.}[/tex]
[tex]\text{hope this helps! have a nice day!}[/tex]
Dont mind the answer I picked
Answer:
cold water temperature of the lake
Explanation:
mark me branilist
what makes one mineral harder than the other? Explain
Answer:
The hardness of a mineral is mainly controlled by the strength of the bonding between the atoms and partly by the size of the atoms. It is a measure of the resistance of the mineral to scratching, the Mohs scale is for natural minerals.
Answer:The ones that are tightly bound together look different than do ones with looser bonds. For example, in the illustrations below, (A) shows the atomic structure of carbon in a diamond, and (B) is the carbon arrangement in graphite. (A) is more compact than (B), hence it is harder.
Explanation:Rocks are made of minerals, and different minerals have different crystal structures. The chemical bonds that hold atoms together in these minerals are stronger in some than in others, and the atoms themselves determine which bonds are stronger than others.
4. Thermal conduction works when two objects are in_______with each other. The_________
energy of the molecules causes them to bounce into each other, causing heat to move through
the object.
pls help I AM ON A TIMERR PLEASE
Answer:
They will move inside the cell cos the concentration inside the cell is too low
Explanation:
hope it helps
Answer:
2nd option
Explanation: