Answer:
It is passed from old cells to new cells during cell division.
Explanation:
Cell theory states that DNA is passed between cells during cell division
Who determined the percentage of adenine (A) in the DNA
always equaled the percentage of thymine (T), and the
percentage of guanine (G) always equaled the percentage of
cytosine (C).
Help me describe how these protists feed, move, and reproduce.
A plant-like protist
A fungus-like protist
Ciliophoran
Zooflagellate
Sarcodinian
Sporozoan
Explanation:
Protists are mostly one-celled organisms. Some make
their own food, but most take in or absorb food. Most
protists move with the help of flagella, pseudopods, or
cilia. Some protists, like the one-celled amoeba and paramecium, feed on other
organisms.
Fungus-like protists share many features with fungi. Like fungi, they are heterotrophs, meaning they must obtain food outside themselves. They also have cell walls and reproduce by forming spores.
Ciliates reproduce asexually by division: the micronucleus undergoes mitosis, while in most ciliates the macronucleus simply pinches apart into two. This process is shown in the drawing above. However, ciliates also reproduce sexually, through a process known as conjugation. Conjugation is often induced by lack of food. Two ciliates of opposite mating types come close together and form a cytoplasmic bridge between the two cells; the micromuclei divide by meiosis, the macronuclei disintegrate, and the conjugating cells exchange haploid micronuclei over the cytoplasmic connection. They then separate, reform new macronuclei from their micronuclei, and divide, but remember that the essence of sexual reproduction is forming a new organism from the combined genetic material of parents. After conjugation, each ciliate partner has acquired new genetic material, and divides to give rise to progeny with a new combination of genes. This is essential to the survival of ciliate lineages; most ciliates cannot reproduce indefinitely by asexual fission, and eventually die out if prohibited from conjugating.
One convenient way to categorize protozoans is by how they move. Some move rapidly, while others creep slowly. Still others are not capable of active movement at all, but instead rely on a host organism to supply their food.
Protozoans With Flagella
Zooflagellates (zoh oh FLAJ uh lits) move by means of one or more flagella. (Recall from Chapter 6 that flagella are long, thin, whip-like cellular projections.) Zooflagellates generally reproduce asexually by binary fission. Recall that asexual reproduction results in genetically identical offspring.
Sarcodines reproduce sexually by syngamy (fusion of two gametes) and asexually by division or budding. In multinucleate forms, cytoplasmic division with distribution of the nuclei occurs.Members of the phylum Sarcodina are ameboid. They move about by using pseudopods and usually eat by phagocytosing food particles, usually bacteria. Some amoeba form calcium carbonate or silica skeletons called tests to protect themselves.
The sporozoans are able to form spore-like cells, from which they get their name. Sporozoans do not have flagella, cilia, or pseudopodia. They are capable of gliding movements. ... The apical complex secretes enzymes which allow the sporozoan to enter a host cell.Apicomplexan, also called sporozoan, any protozoan of the (typically) spore-producing phylum Apicomplexa, which is called by some authorities Sporozoa. ... Apicomplexans feed by absorbing either dissolved food ingested by the host (saprozoic nutrition) or the host's cytoplasm and body fluids.Protozoa reproduce asexually by fission, schizogony, or budding. Some protozoa can also reproduce sexually. Relatively few protozoa cause disease
9. Natural selection explains how ______
change as their environments
Answer:
Organisms
Explanation:
Natural selection is when organisms adapt to their environment due to "survival of the fittest".
Science - SC3206 - TAL
Which statements describe vascular tissue? Check all that apply.
The primary purpose of vascular tissue is to support the plant and help it stand upright,
Phloem carries food made during photosynthesis to other parts of the plant,
Phloem contains the chloroplasts,
Xylem moves water and nutrients throughout the plant,
Xylem is the protective, waxy layer on a plant that prevents water loss,
Answer:
B
Explanation:
As I think second statement describes vascular tissue.
Answer: b and d
Explanation:
When looking through a miscrcope you see a single celled organism. You don't see any nucleus on this organism, this organism is most likely
an Eukaryote.
True or false?
Answer:
True
Explanation:
Negative feedback: If blood pressure is high, the blood vessels should
A. dilate (open up more)
B. constrict (get tighter)
please help! i’m confused
Answer:
Mitosis is used to produce daughter cells that are genetically identical to the parent cells. The cell copies - or 'replicates' - its chromosomes, and then splits the copied chromosomes equally to make sure that each daughter cell has a full set.
Explanation:
Question 2 Multiple Choice Worth 4 points)
[0.04H] Which of these statements is correct about tidal energy and ocean thermal energy?
A - Tidal energy may increase the fish population.
B - Tidal energy may increase the bird population.
C - Ocean thermal energy may alter the wave heights.
D - Ocean thermal energy may alter the ocean ecosystem.
Answer:
A.Tidal energy may increased fish population...
and
D. Ocean Thermal Energy may Alter The Ocean ecosystem.
Explanation:
I hope.it help u
Answer:
D. Ocean Thermal Energy may Alter The Ocean ecosystem.
Took Flvs test im valid
Question 26 of 35
Corundum is the second-hardest mineral on Mohs' hardness scale. How does
this property make corundum useful to humans?
A. It means corundum can be used to make fireworks yellow.
B. It means corundum can be used to flavor foods.
C. It means corundum can be used as pencil lead.
D. It means corundum can be used to grind down and shape
fingernails.
Answer: it means corundum can be used to grind down and shape fingernails
Explanation:
Answer:
D
Explanation:
Based on the diagram above, how is isoleucine inhibiting the function of threonine deaminase (Enzyme 1)?
According to the diagram, when will this enzyme begin to function again and make more isoleucine?
Answer:
b evrensel cevap geçiş ocmc.cc,c,
Explanation:
enzim olmasi lazi, hakikatten ya
A capacitor is made from two conducting plates and is separated by a material the does not
electricity.
Answer:
i assume you want the gap filled
Explanation: that does not CONDUCT electricity
Select the correct answer from each drop-down menu.
(drop-down menu)tends to raise CO2 levels in the atmosphere, but
(drop-down menu) tends to lower CO2 levels in the atmosphere.
Answer:
respiration and photosynthesis maybe as I can't see the options
Explanation:
Answer:
Cutting down trees instead of growing trees
using clean energy sources instead of fossil fuels.
Explanation: Took the test and I got it correct.
large blooms of algae on the surface of a lake keep which abiotic factor from reaching the bottom?
Answer:
water that flows over the ground and can carry pollution to water. Algal blooms choke out other plants and decrease the amount of oxygen available for living organisms.
Explanation:
The substance that are present before any chemical reaction are called
Dioxides
Oxygen
Products
Reactants
HELP ASAP
Can yall help me with this
Why is the vacuole in a plant cell larger than a vacuole in an animal cell?
The vacuole in the plant cell produces ribosomes.
The vacuole in the plant cell controls cellular activities.
The vacuole in the plant cell performs photosynthesis.
The vacuole in the plant cell maintains turgor pressure.
Answer:I think = The vacuole in the plant cell maintains turgor pressure.
Explanation:
what is the phenomena of cells?
which animal is most likely to be found in a river? a. starfish b. trout c .tuna d. shark
Help me find the mutant RNA for the Mutant DNA. I can find the amino acids I just need the mutant RNA
Four identical plants are grown under
different colored light bulbs. Under which
color will the release of oxygen gas be the
slowest?
A. Blue
B. Orange
C. Green
D. Red
The release of oxygen gas will be the slowest under the red colored bulb.
It should be noted that phycoerythrin is a red pigment that's present in cryophytes and red algae. It's vital for the main chlorophyll pigments that are necessary for photosynthesis.
It should be noted that phycoerythrin reflects red light. Therefore, the release of oxygen gas will be the slowest under the red colored bulb.
In conclusion, the correct option is D.
Read related link on:
https://brainly.com/question/20400470
Mutations are most often
a) beneficial
b) harmful.
c) neutral.
d) deadly .
Answer:
the answer is C
Explanation:
yuhhhh
HELP PLEASE FAST ILL MARK BRAINLIST
Answer:
c - half as much
Explanation:
i took this last year
Answer:one-half as much
Explanation:
Diversity among members of a species is important because diversity
a
increases the chances of survival under changing conditions.
b
ensures high levels of competition.
c
increases the available ecosystem resources.
d
ensures the variety of reproductive methods for a species.
Diversity among members of a species is important because diversity increases the chances of survival under changing conditions.
If a disease spreads throughout a species, the species with genetic diversity will survive. If the species does not have genetic diversity, they will be wiped out by the disease.
What’s order does these go in?
I dont remember. Please provide more information.
All individuals of one species living in an area is called?
Answer:
A population comprises individuals of the same species. A community however is comprised of different populations of several species coexisting in the same area. In short, a population only refers to one species, but a community refers to all living species within a certain area.
answer answer answer :)
Answer:
Chromatin
Explanation:
Answer:
c
Explanation:
yes and have a good day sorry if I'm rong
Which is the third stage of mitosis? (3 points)
Anaphase
Interphase
Metaphase
Telophase
Will give brainliest!
Describe at least two of the four major systems we looked at in class: Ice, Water, Land, Atmosphere and
provide a specific example of how these systems are connected to one another
Land, water and atmosphere are very popular choices for habitats. Land is use full with all the food and prey walking around many places to hide. Birds can transition. in the atmosphere you can see very far and can find prey easily. water has lots of life and lots of nutrients. these three habitats have lots of interaction by prey and predator relationships.
hope this helps.
An organism has a haploid number of 36. What is the organism's diploid
number
Answer:
Image result for What is the organism's diploid number
Diploid is a cell or organism that has paired chromosomes, one from each parent. In humans, cells other than human sex cells, are diploid and have 23 pairs of chromosomes. so it 23
Explanation:i look it up
please help meeees ! !
Answer: C - Long legs
Explanation: The long legs possessed by the prey will allow the prey to take huge strides when running away from the predator.
Hope this helps :)
