Which of the following types of stars started out on the main sequence with the largest initial mass?
a, b, c, or d?
Answers
Answer:
answer: C
Explanation:
hope it helps thanks❤
Related Questions
Which is a symbol that represents SI units for temperature?
°C
g
L
°F
Answers
The answer is option a degree Celsius
Answer:
the answer is A on edge!
Explanation:
Which describes the role of
oxygen in photosynthesis?
• It is a reactant, so it is released by the plant.
O It is a
product, so it is released by the plant.
• It is a reactant, so it enters the plant.
• It is a product, so it enters the plant.
Answers
What do you think are the possible alleles for eye color in humans?
Answers
Answer:
I'm not sure but i think its brown and blue
Which is an example of temporal isolation?
flowers that bloom in different months
birds that have different mating calls
fruit flies that mate in different locations
squirrels that have different fur colors
Answers
Flowers that bloom in different months is an example of temporal isolaton.
What is temporal isolation?Temporal isolation is a type of reproductive isolation that occurs when two or more species reproduce at different times, thereby preventing mating between them. This can happen in a variety of ways, such as when one species is active during the day and the other at night, or when they breed during different seasons.
Temporal isolation can lead to the evolution of new species because it prevents interbreeding between populations that would otherwise exchange genetic material. Over time, these isolated populations can accumulate genetic differences that make it increasingly difficult for them to interbreed, leading to the formation of distinct species that are reproductively isolated from one another.
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When does chromatin form into chromosomes?
Answers
Answer:
Chromatin is a mass of genetic material composed of DNA and proteins that condense to form chromosomes during eukaryotic cell division. Chromatin is located in the nucleus of our cells. The primary function of chromatin is to compress the DNA into a compact unit that will be less voluminous and can fit within the nucleus.
Explanation:
what is photosynthesis ?
Answers
Answer:
Photosynthesis is a process in which plants turn carbon dioxide and water into food using energy from sunlight.
Answer:
Photosynthesis is a process in which plants get their food by converting carbon dioxide and water by using sunlight .
The volume of a right circular cylinder can be approximated as follows: Volume = ?r2h; where r is the radius of the cylinder and h is the height of the cylinder; ? is a constant that is roughly equal to 3. Using the simple approximation above, calculate the volume of a right circular cylinder with a radius of 2 meters and a height of 9 meters
Answers
Answer:
42m3
Explanation:
If an environment changes rapidly, organisms with _____ will be more likely to survive and reproduce.
Answers
4. Describe an observation you made today and an inference you can make from that observation.
Answers
Answer:
my my teacher gives my class and I a mystery box for us to observe what's inside that box it was closed, as we was trying to know what's inside that box we were looking and thinking what does it sounds like, but my friend next to me says it sounds like a stapler and my other friend said it's not very heavy, as we were we said we could take another box just like that identified box and put a stapler since it sounds like a stapler and it's not that heavy as we know staplers are not that heavy. well we did that we check and our activity shows that the mystery box it slides and appear to be flat and all the box it slides in appear to be flat so that's the same thing as our box and the mystery box and we were looking at how does it sound when we close the box and everything we were checking how does it sound as we are observed that the mystery box it makes a metallic song when it strikes the side of the box an hour box the stapler makes a thudding sound when it strikes the side of the box and we also checked if the mass of the box was the same but it wasn't the mystery box was 270 g and our box was much more heavier which is 410 g so we were checking what was the really wrong thing we was checking and checking is like what should we do next, and we did in for the things in the box had to be different because our observation of the two boxes are different, and we observed yes things are different of course.
and there's a picture with the observation chart I will be showing it's above take a look and you will be have more understanding and knowledge about the really topic I am talking about thank you.
which type of plant was important in establishing the transition from water to land and the dominance of gametophyte
Answers
Answer: Nonvascular plants
Explanation:
Non-vascular plants are the plants that do not have a vascular system that has a xylem and phloem but rather, they have simpler tissues which have specialized functions that are used in the internal transport of water.
The type of plant that was important in establishing the transition from water to land and the dominance of gametophyte is the non vascular plant.
In the life cycle of zygomycota fungi, the filamentous, asexually reproducing forms visible to the human eye are called:
Answers
Answer:
hyphae
Explanation:
In the asexual phase of their life cycle, the hyphae produce sporangiospores. The group of fungi known as Zygomycota develop sporangia within a sac, which bursts to release the spores, germinating into a new hypha.
What would most likely happen to a native predator species if a nonnative predator species were introduced to an area?
A. The native species would force the nonnative species out of the community
B. The native species population would decrease because the nonnative species would be competing for food sources.
C. The native species population would increase because the nonnative species would introduce new food sources.
D. The native species would outcompete the nonnative species.
Answers
Answer:
B. The native species population would decrease because the nonnative species would be competing for food sources.
Explanation:
This question is describing the effect of invasive species. Invasive species are foreign species i.e. not native to a habitat or area, introduced into the area with the ability to outcompete and negatively affect the native species of that area.
Invasive species compete with the native species for food, space, mate etc., and tend to outgrow them. Hence, if a nonnative predator (invasive) species were introduced to an area, the native predator species in that area would decrease because the nonnative species would be competing for food sources.
Describe these findings, and explaine their significants; epicanthal fold; pseudostrabismus; ophthalmia neonatorum; Brushfield spots.
Answers
-pseudostrabismus: the appearance of strabismus because of epicanthic fold but is normal for a young child.
-Ophthalmia neonatorum, conjunctivitis of the newborn: purulent discharge caused by a chemical irritant or a bacterial or viral agent from the birth canal.
-brushfield spots: white specks around the edge of the iris.
Which of the following substances will cross the cell membrane through
osmosis?
O A. Large proteins
O B. Water
O C. Sodium ions
O D. Nonpolar molecules
Answers
B. Water
EXPLANATION
Water passes through the root cell membrane of plant in Order for osmosis to take place
The process where animals take in oxygen to breakdown energy from the plants is
a) breathing
b) photosynthesis
c) aerobic respiration
d) digestion
Answers
What process facilitates locomotion for the ovum?
Question 6 options:
a. Once the ovum leaves the ruptured follicle it is captured by the uterus and then directed into the Fallopian tube, where it is pushed along towards the oviducts.
b. Once the ovum leaves the ruptured follicle it is captured by the fimbriae and then directed into the Fallopian tube, where it is pushed along towards the uterus via cilia.
c. Once the ovum leaves the ruptured follicle it is fully matured and propels itself into the Fallopian tube, where it moves along towards the uterus.
d. Once the ovum leaves the ruptured follicle it is captured by the cervix and then directed into the Fallopian tube, where it is pushed along towards the uterus via cilia.
Answers
The correct answer is B. Once the ovum leaves the ruptured follicle it is captured by the fimbriae and then directed into the Fallopian tube, where it is pushed along towards the uterus via cilia.
Explanation
Ovulation is a process in which the ovum is released from the ruptured follicle, there it is captured by the fimbriae and taken to the fallopian tubes (where it will be fertilized by sperm) and then it will reach the uterus (the place where the fetus will grow) through the cilia. Additionally, this process is in which the woman is fertile to conceive and occurs around the fourteenth day of the menstrual cycle (which lasts twenty-eight days).
The insulin/glucagon ratio changed over the course of the experiment indicating changes in glucose storage and changes in ability to increase blood glucose concentration via glycogenolysis and gluconeogenesis. State when glucose storage capability was highest and why.
Answers
Answer:water
Explanation:water
Which of the following does NOT cause weathering?
A. Plants
B. Water
C. Helium
D. Temperature change
Answers
Answer:C
Explanation:
Question 17 of 25 Look at the protein below. Which could be its function? A. Storing energy B. Moving material into cells O C. Transporting oxygen PREVIOUS
Answers
In 40 words or fewer, why do you think a 0.1% difference in DNA can
be useful to society?
(The answer is this ⬇️)
The 0.1% difference in DNA
can be used to identify
someone who has
committed a crime or free
someone who hasn't, to determine someone's family
heritage, and to help give a
person more precise
medical treatments.
To anyone who needs it
Answers
Answer:
The 0.1% difference in DNA
can be used to identify
someone who has
committed a crime or free
someone who hasn't, to determine someone's family
heritage, and to help give a
person more precise
medical treatments.
Explanation:
Easy points thxx
Hemoglobin is the oxygen carrying compound found in human blood. It is found to contain 0.3335% iron by mass. It is already known that one molecule of hemoglobin contains four atoms of iron. What is the molecular mass of hemoglobin in g/mol
Answers
Answer:
66986.51 g/mol
Explanation:
According to this question, Hemoglobin- an oxygen carrying compound in the blood, is found to contain 0.3335% iron (Fe) by mass.
* One molecule of hemoglobin contains four atoms of iron
If 1 atom of Fe = 55.85g/mol
Then 4 atoms = 4 × 55.85 = 223.4g/mol
So there are 223.4g/mol of Fe in one molecule of hemoglobin
If hemoglobin contains 0.3335% iron by mass, this mathematically means that:
223.4g/mol of Fe ÷ molar mass of hemoglobin = 0.3335%
That is;
223.4/M.M = 0.3335/100
Cross multiply
0.3335 M.M = 22340
M.M = 22340 ÷ 0.3335
M.M = 66986.51
Hence, the molar mass of hemoglobin is 66986.51g/mol.
Autoclaving is the most effective among all moist heat-related antimicrobial methods. (True or False)
Answers
Answer:
True.
Explanation:
Autoclaving is the most effective among all moist heat-related antimicrobial methods because this method can kill all the harmful microbes such as bacteria, fungi and viruses. Moist heat causes destruction of microorganisms by denaturation of macromolecules that is present in their body such as proteins. Autoclaving is a very common method for moist sterilization. It is an effective method in killing fungi, bacteria, spores, and viruses but it does not eliminate prions.
Plant species A has two alleles for leaf color. If plant species B has four alleles for leaf color, how will the two species differ in their appearance?
A. Species A will have more colors on each leaf than species B.
B. Species B will have fewer phenotypes for leaves than species A.
C. Species A will have fewer leaves per plant than species B.
D. Species B will have a greater variety of leaf colors than species A.
Answers
Answer: D
Explanation: It would be D because it has a larger amount and all species vary and leaves can be exactly the same they change color and evolve into different shapes
CLASS ENVIRONMENTAL SCIENCE The____domain incorporates cultural norms that directly impact sustainable development. The___ domain focuses on the protection and preservation of natural and artificial resources
Blank 1: ......................Blank 2:
A: social..................... A: public policy
B: economic..............B: technological
C: sustainable..........C: environmental
Answers
Answer:
the answer is c
Explanation:
i got 100%
The bundle of collagen fibers at the end of a skeletal muscle that attaches the muscle to bone is called a(n)
Answers
Answer:
epimysium
Explanation:
Epimysium is a sheath of fibrous elastic tissue surrounding a muscle.
It is a layer of dense irregular connective tissue which ensheathes the entire muscle and protects muscles from friction against other muscles and bone
Which process occurs during the light-dependent reactions in photosynthesis?
A. Water molecules are split
B. Carbon fixation occurs
C. PGA is reduced
D. RuBP is regenerated
Answers
Answer:
b
Explanation:
A resultant force is?
Answers
Answer:
When two or more forces act on an object, the resultant force can be found by adding up the individual forces.
where can we find most of the gases ? to the left or right section ? explain .
Answers
Nitrogen and oxygen account for 99 percent of the gases in dry air, with argon, carbon dioxide, helium, neon, and other gases making up minute portions.
Explanation:
:)
Drag the substances into the correct category
water
Reactants Products
oxygen
energy
carbon dioxide
glucose
Answers
Products: Oxygen, Glucose
Answer: 100% on edge
Reactants:: glucose and oxygen
Products:: carbon dioxide, energy, and water
What can you tell about an igneous rock that has a coarse-texture?
A. It is a carbonate.
B. It probably formed in a volcanic eruption.
C. It is most likely formed underground.
D. It is extrusive.
Answers
Answer: It is most likely formed underground
An igneous rock that has a coarse texture is one that formed from slowly cooling magma deep within the Earth's crust, or from slowly cooling lava on the surface. The slow cooling allows large mineral crystals to grow, giving the rock a coarse, grainy texture.
What can the size and shape determine ?The size and shape of the mineral crystals within the rock can provide information about the rock's cooling history and the conditions under which it formed. Coarse-grained igneous rocks such as granite, gabbro, and diorite typically have crystals that are visible to the open eye, with sizes ranging from a few millimeters to several centimeters in diameter.
The composition of the rock can also be determined based on the types of minerals present in the coarse-grained texture. For example, if the rock contains primarily feldspar and quartz, it is likely a granite. If it contains mainly plagioclase feldspar and pyroxene, it is likely a gabbro.
Overall, the coarse texture of an igneous rock indicates that it cooled slowly over a long period, allowing mineral crystals to grow and form a visible grain structure. The size and composition of the crystals can provide clues about the rock's history and origin.
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