Answer:
The correct answer is - Diatoms (phytoplankton) and cephalopods like squid (zooplankton).
Explanation:
Bilateral symmetry is the symmetry of the body where one side of the body is the mirror image of the other side of the body. Organisms that are found in the water or can not move without the current of water, called planktons. Planktons can be either animals or plants. The two examples (one from zooplankton and one from phytoplankton) are as follows:
The cephalopods like squid (zooplankton) - The cephalopods are the group of planktons in which most of the organism like squid and others has bilateral symmetry.
Diatoms (phytoplankton) - The most common phytoplankton is diatoms and the pennate diatoms show bilateral symmetry.
People who are lactose intolerant lack the lactase enzyme. They often experience digestive problems when they eat dairy products. Do the results of demetri’s experience support this scenario? Explain your response
Answer:
Yes, the results of demetri's experience support this scenario.
Explanation:
A milk allergy is an immune response which involves the production of antibodies specific to substances in milk, such as casein. Lactose intolerance does not involve the immune system but is the result of an inability to produce the enzyme lactase. People with milk allergies suffer from different symptoms than people who are lactose intolerant. The symptoms of a milk allergy include hives, wheezing, and vomiting, whereas the symptoms of lactose intolerance are gastrointestinal distress, including gas and diarrhea.
the first evidence of primitive cellular life was the 1977 discovery of microbial fossils in the swartkoppie chert, a type of granular sedimentary rock rich in silica. why is this evidence not considered definitive?
A short chain of the cyanobacterial cells found in the Bitter Springs Chert in northern Australia (about 1 billion years old). The bulk of modern genera really resemble cyanobacteria that are closely related to those that are living today. Unlike this fossilized cyanobacterium.
The fact that microorganisms can even leave fossils may surprise you. The oldest cyanobacteria-like fossils, which are among the oldest fossils ever found, are from the Precambrian, but one specific type of bacterium, the cyanobacteria or "blue-green algae," has left a fossil record that extends all the way back to that time. Larger than other bacteria, cyanobacteria have the ability to produce a thick cell wall. More crucially, cyanobacteria have the ability to form enormous, layered structures known as stromatolites or oncolites, depending on whether or not they resemble domes (if round).
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What are the uses of the energy provided by ATP in the living cells?
Answer:
ATP functions as the energy currency for cells. It allows the cell to store energy briefly and transport it within the cell to support endergonic chemical reactions. The structure of ATP is that of an RNA nucleotide with three phosphates attached.
While mRNA strands are being created a sequence is sometimes miscopied.
What will be the effect of this on the cell?
a
Translation may not take place.
b
Future transcription will not take place.
c
Ribosomes may be destroyed.
d
The damaged mRNA may cause cell death.
Answer:
a . Translation may not take place.
Explanation:
The mRNA or messenger RNA holds the Exton which is the coded section of the RNA meant to be translated to protein. When a mismatch or miscopy of the strands takes place, the section becomes unfit for translation (the section is similar to the intron which is not coded for translation), hence, translation does not take place.
Which of the following contains the base Uracil?
Question 1 options:
A. RNA
B. DNA
C. neither DNA or RNA
D. both DNA and RNA
Answer:
Both RNA and DNA
Explanation:
i took college physics (im 14 btw)
A eukaryotic organism was found in a pond. The single-celled organism possessed photosynthetic capabilities, had a cell wall, and appeared to reproduce asexually. It was determined that the cell wall does not contain chitin. In which kingdom does this organism belong?
A.Protista
B.Fungi
C.Plantae
D.Animalia
Natural selection occurs when which of the following conditions are met?
a.Variations between individual organisms lead to differential survival chances.
b.The conditions in an ecosystem support a wide range of living organisms
c.Individual organisms depend on each other to obtain available resources.
d. Habitat and nutrient resources in an area are plentiful over a long period of time.
Answer:
A
Explanation:
Natural selection is the process through which populations of living creatures adapt and change. Therefore option (A) is the correct answer.
What is natural selection?Natural selection refers to the process in which different individuals with distinct phenotypes have variable rates of survival and reproductive success. The gradual shift, over the course of generations, of the heritable characteristics that are typical of a population is an important aspect of the evolutionary process known as evolution.
In the process of evolution, four fundamental ideas are at play: variation, heredity, selection, and the passage of time. Natural selection is widely regarded as the key evolutionary mechanism, and these are its constituent parts.
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Select all of the factors that may have prevented the solid line from continuing to increase.
A
increased predation
B
introduced disease
С
increased immigration
D
decreased resources
E
decreased emmigration
Some researchers use fmri technology to study activity in the brain. What is the underlying activity detected by fmri?.
Some researchers use fMRI technology to study activity in the brain. The underlying activity detected by fMRI is by measuring the changes occurring in both oxygen amount present in the blood as well as the blood flow amount.
fMRI technology helps to detect the activity of the brain by measuring the changes occurring in both the amount of oxygen present in the blood as well as the amount of blood flow. This measurement is termed as the activity depending on the blood-oxygen level or called BOLD activity.
Functional magnetic resonance imaging or fMRI measures the activity of the brain by detecting various changes associated with the flow of blood. This technique will be relying on the fact of coupled activity of cerebral blood flow as well as neuronal activation. When an area of the brain is used up, there will be an increase in blood flow to that region.
The primary fMRI form uses contrast which is blood-oxygen-level dependent. This is a specialized brain type and a body scan that is used to map the activity of neurons in the brain or the spinal cord present in humans or in other animals by imaging the hemodynamic response which is related to the use of energy by the brain cells.
fMRI has come to dominate the mapping research of the brain as it does not involve injection uses, surgery, the ingestion of substances, and ionizing radiation exposure. This measure is usually corrupted by noise which is from various sources most frequently. Hence, the underlying signals are extracted by statistical procedures.
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When viewing protists in this lab, applying a drop of __________ may be necessary to slow the movement of the organisms so they are more easily viewed.
Answer: A methyl-cellulose.
Explanation:
PLEASE HELP .!!! ILL GIVE BRAINLIEST.. *EXRTA POINTS* .. DONT SKIP :(( !
ILL GIVE 40 POINTS .
Answer:
i think the answer is D
Explanation:
both have different diets, so there is no need for any of them to compete for food.
Share your thoughts about how hard/easy to spot Bad Science and
Pseudoscience articles
Which of these is NOT an
example of insulator?
A. rubber pot holder
B. cloth curtains
C. aluminum foil
Answer:
ITS A Rubber pot holder
Explanation:
cauze rubber don't pass electricity...
Hope it helps :)
8. a) How are the events in the menstrual cycle triggered by the body? (1 point)
select each of the nervous system structures that are part of the central nervous system. a. brain stem b. spinal nerves c. cerebral hemispheres d. cerebellum e. cranial nerve ii
All of the given structures are the part of the central nervous system.
What is Nervous System?According to biology's classical idea of the nervous system, an animal's nervous system is a highly sophisticated component that coordinates its movements and sensory data by sending and receiving signals from and to various regions of the body. In order to react to such occurrences, the nervous system and endocrine system collaborate to detect environmental changes that have an effect on the body.
Around 550–600 million years ago, worm-like invertebrates were the first to develop nervous tissue. The discovery of electrical impulses in plants and their utilization in recent decades, however, has called into question this conventional wisdom. These findings have led some researchers to suggest that plants have neural systems and that the science of plant neuroscience should be established.
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How does the cell wall contribute to the function of the plant cell
Answer:
The cell wall surrounds the plasma membrane of plant cells and provides tensile strength and protection against mechanical and osmotic stress. It also allows cells to develop turgor pressure, which is the pressure of the cell contents against the cell wall.
Explanation:
According to Figure 13-3, which code specifies the same amino acid as UAU?
A) UAC
B) UAA
C) UGC
D) UGU
Both UAU and a)UAC code for Tyrosine according to the codon table
Neurogenesis has been seen in the __________ and in the __________. a. temporal lobe . . . hypothalamus b. olfactory bulb . . . hippocampus c. occipital lobe . . . primary motor cortex d. frontal lobe . . . somatosensory cortex please select the best answer from the choices provided a b c d
Neurogenesis has been seen in the (b) olfactory bulb, and in the hippocampus.
The process that produces new neurons is known as neurogenesis. The sub granular zone of the dentate gyrus of the hippocampus and the sub ventricular zone of the lateral ventricles are where neurogenesis continues, according to recent studies.
The process of neurogenesis, which is in charge of creating all of the organism's neurons, is created during the embryogenesis process. Progenitor cells are produced in large quantities in the SGZ and SVZ and functionally integrate into the olfactory bulb and hippocampal regions, respectively.
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please answer accurately
Answer:
non-renewable resources can take millions of years to form such as: fossil fuels
Each body cell of a chimpanzee contains 48 chromosomes. After mitosis, how many chromosomes are present in each cell?
Answer:
During both mitosis and meiosis, DNA replicates first during S phase of interphase. Each copy (DNA molecule) is called chromatid. Before anaphase they remain together, joined by the centromere in the chromosome.
Part 1: How many chromatids and chromosomes are present at:
(a) anaphase of mitosis: During this phase sister chromatids split. We would have 48 chromosomes in each pole and 48 chromatides.
(b) anaphase I of meiosis: During this phase homologous chromosomes split, being a reductional division. In each pole we will have half the chromosomes we had after DNA replication. This is 24 chromosomes but 48 chromatides (remember they will split during anaphase II).
(c) anaphase II of meiosis: This is an equational division, we will have 24 chromosomes in each pole and 24 chromatides. Each chromatid is considered a chromosome.
(d) G1 prior to mitosis: During this phase DNA has not replicated yet and it is not condensed either. This formed is called chromatin. We will assign one chromatid for each chromosome. This is a somatic cell, so: 48 chromosomes and 48 chromatids.
(e) G2 prior to mitosis: After S phase, we have duplicated all chromosomes. We will assign two chromatids per chromosome: this is 96 chromatides and 48 chromosomes.
(f) G1 prior to meiosis: Before DNA duplication, 48 chromosomes, 48 chromatids.
(g) Prophase of meiosis I: After DNA replication, condensation of the chromatin takes place: 48 chromosomes, 96 chromatids.
Part 2: How many chromatids or chromosomes are present in:
(h) An oogonial cell prior to S phase: This is G1 phase, 48 chromosomes.
(i) A spermatide: This is the male haploid gametid, after meiosis: 24 chromosomes and 24 chromatids.
(j) A primary oocyte arrested prior to ovulation: They are arrested at prophase I of meiosis. This means their DNA is still duplicated and chromatides have not divided yet. 48 chromosomes and 96 chromatids.
(k) A secondary oocyte arrested prior to fertilization: They are halted at metaphase II of meiosis, meaning they have half the chromosomes (24) but chromatids are still together (48).
(l) A second polar body: They suffered the same process as the mature ovum but remained with little cytoplasm. They have 24 chromosomes and 24 chromatids.
(m) A chimpanzee sperm: They have completed both meiosis as well, they have 24 chromosomes and 24 chromatids.
Explanation:
Mitosis is a type of cell division in which the number of chromosomes in the parent cell is similar to the daughter cell. Mitosis occurs in the somatic cells.
The chromosomes present in the Chimpanzee's cell after mitosis are 48 chromosomes.
The mitosis can be explained as:
1. Mitosis is a type of cell division in which the number of chromosomes in the daughter and parent cells are similar.
2. During the DNA replication process, the DNA is duplicated and separated into the individual two daughter cells.
Thus, the cells with 48 chromosomes will give rise to daughter cells consisting of 48 chromosomes.
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The image below is called a Label the parts of diagram below.
Answer:Is B because am not sure
Explanation:
It will be correct
as ambient temperature decreases, metabolic rate in an ectotherm decreases to maintain body temperature.
The order is False.
In Ectotherms, decrease in ambient temperature causes body temperature to decrease, that causes a decrease in Metabolic rate.
What are ectotherms?Any animal that is considered to have cold blood, or whose ability to regulate body temperature depends on environmental factors like sunlight or a heated rock surface. Ectotherms are organisms whose internal physiological sources of heat play a small or almost insignificant role in regulating body temperature. Such organisms depend on heat sources in their surroundings, which enables them to have incredibly efficient metabolic rates. Fish, amphibians, reptiles, and invertebrates are all ectotherms. Endothermic organisms include human. This suggests that humans are less dependent on the external environmental temperature than ectothermic (poikilothermic) animals like fish and reptiles.Learn more about the Ectotherms with the help of the given link:
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Please help due soon.
Explanation:
phytoplanton. its the answer
This happens when water gets absorbed into the ground and gets stored in the underwater
aquifers.
Helppp
Answer:
Infiltration occurs
Explanation:
When water gets absorbed into the ground and gets stored in the underwater aquifers, infiltration has occurred.
An aquifer is a porous and permeable formation within the earth surface which allows for the storage of ground water. The process of infiltration is a very important in the water cycle. This allows for surface water to enter the ground water system. The bulk of the ground water recharge is by infiltration. Most ground water sources are reservoirs for freshwater.In the food web picture, squirrels would be classified as ? is it
herbivore
omnivore
carnivore or
decomooser
Answer:
Omnivore
Explanation:
Squirrels mainly eat fungi, seeds, nuts and fruits, but they will also munch on eggs, small insects, caterpillars, small animals and even young snakes.
newton's first law of motion shows that a net force is needes in order for an object to
Newton's first law of motion states that a net force is required for an object to move. Newton's first law of motion states that an object in motion tends to stay in motion unless acted upon by an external force.
Similarly, if an object is at rest, it will remain at rest unless an unbalanced force acts on it.
The law of inertia is Newton's first law. The object will continue to behave the same as if there was no net force. They either keep moving at a constant speed or remain stationary unless an unbalanced force acts on them. This unbalanced force changes velocity and/or direction depending on the magnitude of the direction of the resultant force. Newton's first law of motion is also known as the law of inertia.
According to Newton's first law, objects behave as expected. If the ball is on the table, it cannot roll or fall off the table. An object in motion does not change direction unless forced off course by a force.
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What would be a correct unit of measurement for velocity?
Meters/second
North Meters / second
North
hours
Answer:
meter per second
Therefore, velocity is expressed in meters/second or m/s. The SI unit of velocity is meter per second (m/s). Alternatively, the velocity magnitude can also be expressed in centimeters per second (cm/s).
Explanation:
Brainliest please?
A correct unit of measurement for velocity is meters/second. Velocity is the rate at which an object changes its position in a specific direction over time.
The standard unit for measuring velocity in the International System of Units (SI) is meters per second (m/s). It represents the distance traveled in meters divided by the time taken in seconds, indicating both the magnitude and direction of the object's motion.
The options "North Meters/second" and "North" are not appropriate units of measurement for velocity. "North" represents a direction but does not provide information about the speed or magnitude of the object's motion. Additionally, "hours" is a unit of time and not directly related to measuring velocity.
Therefore, the correct unit of measurement for velocity is meters/second.
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A feature of an organism.
——— igneous rocks form below Earth's surface.
Plz help
Answer:
intrusive igneous rocks
Explanation:
Answer:
the answer is intrusive
Explanation:
Explain the concept Conservation of Matter
Answer:
Concept of Conservation: Matter cannot be created or destroyed. Matter can only change forms!
Explanation:
conservation of matter - a fundamental principle of classical physics that matter cannot be created or destroyed in an isolated system