Explanation:
Cryptogams: Thallophytes, Bryophytes and Pteridophytes are called Cryptogams.Cryptogamae means having hidden reproductive organs.The reproductive organs in these plants are inconspicuous. Their naked embryos are called spores.Phanerogams: Gymnosperms and Angiosperms are Phanerogams.Phanerogams are the plants with well differentiated reproductive tissues. The seeds enclose embryo which is suspended in the stored food.-TheUnknownScientist 72
the global distribution of the diversity of phytoplankton is indicated in the map shown here. which statement best describes the reason for the distribution of different species of phytoplankton as shown here?
PLEASE HELP ME OUT!!
Answer:
A)Light levels and average temperatures are higher at 0 degrees latitud…
Explanation:
got it right on usa testprep :)
Monarch butterflies have brightly colored orange wings with black patterns on them, making them easily visible to birds that eat butterflies and moths, yet birds rarely eat the monarchs. Likewise, the monarch caterpillars are brightly striped yellow and white and black, and they also are rarely eaten by birds, although some wasps will attack them and feed them to their young. What can be inferred from these observations?
A. Monarchs must threaten and attack birds, but not wasps.
B. Monarchs have a way of discouraging bird predation that does not involve hiding.
C. Monarchs' wings are so colorful that most birds must find them difficult to eat.
D. Monarchs lay more eggs than other less conspicuous butterflies.
Answer: it would be B or C but i think its B
Explanation:
The first step in sensation for some sensory systems is the __________, which modify incoming stimuli. Sensory receptors accessory structures absolute thresholds thermoreceptors.
During sensation, the first step for some sensory systems is the accessory structures, which are saddled with the responsibility of modifying an incoming stimuli.
A sensory system refers to components of the central nervous system (CNS) which comprises of the brain, neural tissues (pathways) and sensory neurons that are responsible for sensory functions, perception and processing of sensory information such as light, sound, heat, etc.
Basically, the five (5) main sense organs in the sensory system include the following:
SkinTongueEarsNoseEyesThe accessory structures is typically the first step the first step for some sensory systems because they are saddled with the responsibility of modifying an incoming stimuli.
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Answer:
Accessory Structures.
Explanation:
To test a new drug that has the potential of curing people of the common
cold a company asked human volunteers who were coughing and sneezing
to participate in a clinical study. The objective of the experiment was to test
whether the new drug could cure the volunteers in the experimental group of
the common cold. But instead of two groups, these volunteers were randomly
divided into three groups and treated as follows:
Group
Experimental
Group
Yes
Control
Group 1
NO
Control
Group 2
No
New ONS
Orange
Bedre
Yes
No
Yes
Yes
Which of the following is the best explanation of why a second control group
was included in this experiment?
O A To prove that the common cold cannot be cured
B. To provide the volunteers in the study with something to drink
O C. To help researchers conclude that results are related to the new
drug and not to the orange juice
O D. To confuse anyone who is trying to steal their new drug and sell it
as their own invention
Answer: C
Explanation: A good experiment does everything it can to eliminate confounding, or the influence of external sources on the data being measured. Orange juice could be a factor that plays a role in curing the symptoms, so provide a group with and without orange juice gives you the ability to show that the influence of orange juices didn’t have an effect on the cold, or did, but it gives you a baseline to show the effects of the medicine with and without orange juices.
during which phase of mitosis are the spindle fibres formed around the sister chromatids?
Answer:
Metaphase
Explanation:
In prophase, spindle fibers start emerging from the centrosomes. In metaphase, the spindle fibers attach to the sister chromatids.
The element present in the chlorophyll pigment is
Answer:
full ques..please.. not understanding
Answer:
magnesium atom
Explanation:
The chlorophyll molecule consists of a central magnesium atom surrounded by a nitrogen-containing structure called a porphyrin ring; attached to the ring is a long carbon–hydrogen side chain, known as a phytol chain.
Imagine that you are managing a large wildlife preserve that was formerly a cattle ranch. You know from historical accounts that wild sheep used to live there, but they were hunted until the local population was exterminated. After doing some research to determine what might be an appropriate starting population, you introduce them. Food is abundant and they have no natural predators. You then spend several years graphing the number of individuals (on the vertical axis) against the number of generations (on the horizontal axis). By the 10th generation, the population begins to reach carrying capacity.
Requried:
What BEST defines this mathematical model used in population studies?
The mathematical model used in this population study is known as the logistic growth model.
What is logistic growth model?The logistic growth model is a mathematical model that is used to describe the growth of a population over time. It is based on the idea that the growth of a population is limited by resources such as food, habitat, and space, and that as the population grows, the rate of growth begins to slow. This results in a curve that starts out steep and then levels off as the population approaches its carrying capacity, which is the maximum population size that can be sustained in a particular environment.
In the scenario described, the population of wild sheep is introduced to a wildlife preserve where food is abundant and there are no natural predators. This means that the population is able to grow at a relatively fast rate, but as the population increases, it begins to approach the carrying capacity of the preserve. At this point, the rate of growth begins to slow, and the population levels off.
This is reflected in the graph, which shows the population increasing rapidly at first and then leveling off as it reaches carrying capacity. The logistic growth model is often used to understand and predict the growth of populations in a variety of contexts, including agriculture, biology, and economics.
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which macromolecule is the main component of cell membranes
Answer:
lipids
ion know
Answer:
Lipids
Explanation:
Which units can be used to measure length or distance? Check all that apply.
Answer:
what are the options?
Explanation:
we dont know what the units are lol
Submit your project explaining your choices for each of the five scenarios presented.
Answer: Can you say which five scenarios is the project talking about-?
a giant tortoise traveling at 0.3 km/hr would take how many hours to complete a marathon(42km)
140 h
Explanation:
speed =distance/ time
so rearrange the formula
time= distance/ speed
time = 42/0.3
time = 140 h
In scientific inquiry, when competing hypotheses have been eliminated, a hypothesis may be elevated to the status of a scientific
Answer:
Scientific Theory
Explanation:
The dark reaction doesn't require sunlight, for energy. Why?
A) It gathers energy from the chlorophyll.
B) It stores energy inside of the chloroplast.
C) It gathers all of its energy and stores it in its Mitochondria
D) It gathers its energy from organic batteries called ATP or NADPH.
Answer: C it gather energy from the mitochondria
Which phase of the systems development life cycle would describe in detail the desired features of the system
Answer:
Phase 3
Explanation:
Phase 3 of the systems development life cycle describes the desired features and operations of the system. The objective of the systems design phase is to transform all requirements into detailed specifications covering all aspects of the system. It should also assess and plan for security risks. Finally, approval to progress to the development phase must be granted to complete the systems design phase.
If a star is moving toward Earth, it is
O A. blue shifted
O B. shrinking
O C. red shifted
O D. expanding
Answer:
If a star is moving toward Earth, it is blue-shifted.
Explanation:
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what is the female body parts name
Answer:
Uterus
Explanation:
A female reproductive organs are the vagina, uterus, fallopian tubes and ovaries
For this discussion, explain how each organelle in a eukaryotic animal cell is interconnected with the others. You will need to write at minimum a couple of paragraphs but at most as much as it will require for you to answer this.
Answer:
Different organelles make close contacts with each other via MCSs. These contact sites are generally thought to form via membrane proteins that act as tethers on the interacting organelles . Often these tethers are part of large multiprotein complexes.
The endomembrane system (endo = within) is a group of membranes and organelles in eukaryotic cells that work together to modify, package, and transport lipids and proteins. It includes the nuclear envelope, lysosomes, vesicles, endoplasmic reticulum and the Golgi apparatus, which we will cover shortly.
There are two types of proteins: structural proteins and enzymes. Cell organelles must work together to carry out protein synthesis, utilize proteins within the cell, and transport them out of the cell.
Explanation:
for an enzyme to be able to catalyze a reaction, the active site must —
Answer:
Active site of an enzyme must be attached to a substrate
Explanation:
Active site of an enzyme must be attached to a substrate
For an enzyme to be able to catalyse a reaction, the active site must bind with the specific substrate. This is referred as 'enzyme-substrate' complex.
Why do enzymes catalyse a reaction?Enzymes have the property of catalytic activity. All the enzymes are proteinaceous in nature. Enzymes specifically bind with the substrate and thus initiates a catalytic reaction. This is referred as enzyme-substrate specificity.
Enzymes associate with the substrate at a specific site by lowering the activation energy. This forms the active site where the reaction occurs. The substrate thus transforms into the product upon the action of enzyme.
Enzymes are unique as they speed up any chemical reaction. They help in achieving the equilibrium at a faster rate. Daily thousands of enzymatic reactions are carried out in the body.
Thus, enzymes are important in the biochemistry as they persuade chemical reactions.
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How has earths atmosphere changed over time
Answer:
Hey mate....
Explanation:
This is ur answer.....
When earth was first formed, its atmosphere was likely composed of hydrogen, helium, and other gases that contained hydrogen. Over a vast amount of time, millions of years, the earth gradually cooled. When the temperature dropped enough, water vapor condensed and went from a gas to liquid form. This created clouds.
Hope it helps!
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Answer:
When earth was first formed, its atmosphere was likely composed of hydrogen, helium, and other gases that contained hydrogen. ... Over a vast amount of time, millions of years, the earth gradually cooled. When the temperature dropped enough, water vapor condensed and went from a gas to liquid form. This created clouds.
Before life began on the planet, Earth's atmosphere was largely made up of nitrogen and carbon dioxide gases. After photosynthesizing organisms multiplied on Earth's surface and in the oceans, much of the carbon dioxide was replaced with oxygen.
Hope that helped. x
HELP ME PLEASEEE
1. What percentage of the offspring will be heterozygous?
2. Why does each parent contribute only one allele to the offspring?
Answer:
1. 50%
2. Every gamete only contains 50% of the genetic information or half of the information for a gene.
Explanation: 1. Heterozygous means the pairs consist of a dominant and a recessive, or one big and one small letter, so only 2/4 or 50% are heterozygous.
2. Every sex cell has half of the chromosomes you need to make an embryo so you end up only having one allele as well
Heterogeneous means different
Here they are 2Total 4Percentage:-.
2/4×100=50%#2
It's because they only produce 50% not 100%
What supplies energy used to synthesize carbohydrates during the Calvin cycle?
Is it possible for a primary consumer to be an omnivore or carnivore?
Answer:
yes is it Primary consumers are animals that eat primary producers; they are also called herbivores (plant-eaters). Secondary consumers eat primary consumers. They are carnivores (meat-eaters) and omnivores (animals that eat both animals and plants).Hope this helps!!Explanation:
Itz Deepika Here to help ~ .
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Which is NOT true about pedigrees?
a. They show only recessive disorders.
b. They can be used to predict disorders in a family.
c. They indicate the sex of an individual.
d. They are useful in inferring genotypes of individuals.
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Answer:
i think its this one c. They indicate the sex of an individual.
tRNA:
a) helps to translate codons to DNA
b) transfers anticodons to rRNA
c) recognizes anticodons in the mRNA
d) joins one specific amino acid
Answer:
A transfer RNA (abbreviated tRNA and formerly referred to as sRNA, for soluble RNA) is an adaptor molecule composed of RNA, typically 76 to 90 nucleotides in length (in eukaryotes), that serves as the physical link between the mRNA and the amino acid sequence of proteins. Transfer RNA (tRNA) does this by carrying an amino acid to the protein
Explanation:
The lake ecosystem where this food chain takes place is hosting a new fishing tournament. It is expected to be the largest fishing tournament in the state. The goal is to catch as many bass as you can over a 3-day period. What would be the effect on the food chain due to the fishing tournament
Answer:
The sunfish population should grow
Explanation:
Cuz me smort
1. Describe the equator and identify which letter represents it in the picture. Make sure to use a complete sentence in your response.
А
B
C
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Which to provide evaluation of force, posture, and duration for the neck trunk and upper arms coupled with muscle function and physical lose on the body
Answer:
Strength, reflexes, and eye-hand coordination tend to decrease with a(n)
What enzyme is used in the production of low calorie food and why is it used? No links please x
what is the effect of antidiuretic hormone on the cells of the collecting duct?
help me pls ASAP it's needed
Answer: C
Explanation: Fossil Fuels are the main cause of climate change