7. Explain how protist are thought to have given rise to multicellular organisms.

Answers

Answer 1

Answer:

Protists belong to the group eukaryotes (having their DNA enclosedinside the nucleus). They are not plants, nimals or fungi but they act likeone. They can be in general subgroups such as unicellular algae, protozoa andmolds.

Related Questions

During summer in the Northern Hemisphere,A. the Sun rises earlier and sets later than during other seasons.B. the Sun appears lower in the sky than during other seasons.C. there are fewer hours of visible sunlight each day than during other seasons.D. the Sun rises in the Southeast and sets in the Southwest.
What are the basic components of an effective golf swing?O Grip, Setup, Stance, Backswing/DownswingO Attitude, Effort, CompassionO Strength, Power, FinesseO Athletic Ability, Talent, Sportsmanship
Benedict’s solution is an alkaline copper sulfate solution which is used to detect the presence of aldehyde groups. In the presence of Benedict’s solution, the aldehyde group is oxidized and the aqueous blue Cu2+ ion is reduced to a red Cu2O precipitate. Sugars such as glucose, which produce the red precipitate when Benedict’s solution is added, are called reducing sugars because they can reduce Cu2+ to Cu+. Which of the following carbohydrates would give a positive reaction with Benedict’s reagent? a. galactose; b. sorbitol (see below); c. β-ethylglucoside; d. gluconate .
From the bacteria's perspective, why is it helpful that it produce diarrhea in people?A. Because it gets the bacteria out of the person and, likely, into the next oneB. It's not helpful really. That's just what that toxin causes.C. Because that quickly kills the personD. Because it makes the patient too unpleasant to be aroundE. Because there is no real treatment for that
17. Which of the following statements is/are correct? A. Leeches are members of the phylum Platyhelminthes B. All platyhelminthes are parasites of other organisms. C. Most, if not all, Platyhelminthes lack a coelom. D. Given the following on the organism: I. An animal II. Multicellular III. has tissues (diploblastic) IV. Lacks a digestive tract V. is asymmetrical This organism could be a member of the Phylum PlatyhelminthesE. Platyhelminthes can not reproduce sexually

Which is a disaccharide?
1. glucose 2. fructose 3. sucrose 4. cellulose

Answers

Answer:

surcrose

Explanation:

I googled it

Answer:

3. sucrose

Explanation:

What is defferenciated cell and and undeferenciated cell.with example

Answers

Answer:

Differentiated cells refer to the specialized cells in multicellular organisms modified to carry out a particular function, such as transporting a certain substance or executing a specific task, while undifferentiated cells refer to the stem cells capable of giving rise to indefinitely more cells of the same type,.

example of differentiated cell=zygote to embryo then a comlex foetus
example of undifferentiated cell= embryonic stem cell.

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Breathing rate and pulse rate indirectly measure cellularrespiration because during cellular respiration
[ Select]
and [Select]

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Cry Shape HeartyAnswer:Cry Shape Hearty

Cry Shape HeartyCry Shape Hearty

Cry Shape HeartyExplanation:Cry Shape Hearty

Cry Shape HeartyCry Shape Hearty

Which of the following is FALSE regarding the DNA double helix? a. The two strands exhibit complementary base pairing.
b. The four nitrogenous bases found in it are A, T, C and G.
c. The two strands are parallel.
d. The two strands are stabilized by hydrogen bonds and base stacking interactions.

Answers

Answer:

Which of the following is FALSE regarding the DNA double helix?

The two strands are parallel.

Explanation:

DNA strands are anti-parallel to one another which gives room for their complimentary factor to come in play.

Final answer:

The false statement is that the two strands of the DNA double helix are parallel. They are actually antiparallel, running in opposite directions.

Explanation:

The false statement regarding the DNA double helix is c. The two strands are parallel.

The correct statement is that the two strands of the DNA double helix are antiparallel. This means that one strand runs in the 5' to 3' direction, while the other strand runs in the 3' to 5' direction.

Complementary base pairing, involving the nitrogenous bases A, T, C, and G, is an essential characteristic of the DNA double helix. The two strands are held together by hydrogen bonds between complementary base pairs, as well as by base stacking interactions that result from the hydrophobic interactions between adjacent base pairs.

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An individual’s mother has blond hair and blue eyes. That individual’s father has brown hair and brown eyes. The individual, however, has brown hair and blue eyes. How did that individual inherit a "mixture" of traits rather than either maternal (blonde hair and blue eyes) OR paternal (brown hair and brown eyes) traits?·maternal and paternal chromosomes sort independently·maternal chromosomes and paternal chromosomes remain together·one of the gametes was missing a chromosome

Answers

Answer:

maternal and paternal chromosomes sort independently

Explanation:

Alleles for a gene are present on a particular locus on homologous chromosomes. Meiosis includes the pairing of homologous chromosomes and their segregation of opposite poles. One member of a homologous pair is paternal and the other is inherited from mother.

The random arrangement of homologous chromosomes at the equator of the cell during metaphase I result in independent segregation of paternal and maternal chromosomes to opposite poles during anaphase I. This leads to new combinations of traits in the progeny which were otherwise not present in either parent.

The cambium produces xylem toward the center of a tree and phloem toward the outside. do you think it would make any difference if the positions of the xylem and phloem were reversed? why?

Answers

The wood is xylem, and the bark is phloem. So, if you reverse the two, the tree is unlikely to be able to support its own weight.

What is are vascular tissues?

Vasculartissue is an intricate conductingtissue found in vascular plants that is made up of multiple cell types.

The xylem and phloem are the primary components of vascular tissue. From within, those same two tissues transport fluid as well as nutrients.

In plants, cambium is a layer of actively dividing cells that exists between xylem (wood) and phloem tissues and is responsible for the secondary growth of stems and roots.

A cambium is a tissue layer in plants that provides partiallyundifferentiated cells for plant growth.

It is found between the xylem and the phloem. A cambium is also a cellular plant tissue that grows phloem, xylem, or cork by division, resulting in secondarythickening.

The wood is called xylem, as well as the bark is called phloem. If the two are reversed, the tree is very unlikely to be able to endorse its own weight.

Thus, this can be the consequence of reversing the xylem and phloem.

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Xylem is the wood and the phloem is the bark. so if you were to reverse the two the tree would likely not be able to hold up its own weight

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What gametes are produced by the following organisms:_______. a. Genotype YyRr, if Y and R are on different chromosomes b. Genotype YyRr, if dominant Y and R are on the same chromosome, no crossing over c. Genotype YyRr, if dominant Y and recessive r are on the same chromosome, no crossing over d. Genotype YyRr, if dominant Y and R are on the same chromosome, 50% crossing over

If an enzyme is placed in a lower than optimal pH, its loss of activity might be due to

Atoms share electrons in which of the following?ionic bondshydrogen bondscovalent bondsvan der Waals forces