Which is an example of dehydration synthesis?

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Answer 1

Answer: A dehydration synthesis is a type of chemical reaction. It is also the process of two joined molecules or compounds followed by the removal of water. One example of dehydration synthesis is alcohol condensation to make an ether product

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How does RNA pair up with a single strand of DNA?

Answers

DNA to RNA to Proteins to Traits I hope this was helpful

All of the following are traits of echinoderms excepta. five-part radial symmetry.
b. a pair of antennae.
c. tube feet.
d. an internal skeleton.

Answers

skeleton is the answer

The answer is actually B.) a pair of antennae

The wicked witch and the big bad wolf are examples of A. archetypes.
B. protagonists.
C. dynamic characters.
D. anecdotes.

Answers

A.) Archetypes is the correct answer.

B. protagonistsA protagonist is a bad guy(s) in a story. Both the wicked witch and the big bad wolf are bad guys, therefore protagonists.

What reproductive benefits do angiosperms have over mosses? This is for my biology course. It was a question on one of my assessments and I got it completely wrong. Can someone explain it to me so I can at least try to understand it?

Answers

Angiosperms are plants that flowers. In angiosperms, pollen allows sperm to be transported without the aid of water. On the other hand, mosses needs water so their sperm can swim and survive. Angiosperms are more capable of reproducing because the transport is much easier as compared to mosses.

Angiosperms are flowering plants. To start with, pollen allows the sperm to be transported without water. Mosses need water so their sperm can swim (moss sperm is flagellated), and the sperm can't survive being dried out. In angiosperms, the sperm cells are kept safe inside a pollen grain, and the pollen grain itself can be transported in a variety of different ways (e.g. wind, bees, birds, bats, etc.) The flower itself plays a role here, because it can attract pollinators. After fertilisation, the seed shells protect the embryos (seeds contain baby plants in a kind of dormant state), a secondary endosperm provides the embryo with food, and outside the seeds, you're going to have some kind of fruit. Fruits play an important role because they aid in the distribution of seeds. If a bird eats a berry, for example, there's a good chance that the seed will pass out the other end of the bird somewhere else and sprout into a new plant, or the bird might pick up some berries and drop them or even hide and forget them. Mosses don't have this option.

1. The gametophytes of gymnosperms are found inside reproductive structures called a. flowers.
b. cones.
c.embryos.
d. ovules.
2. In gymnosperms, the female gametophyte develops inside the
a. seed.
b. pollen cone.
c. pollen grains.
d. ovules.
3, Which of the following gymnosperm reproductive structures is haploid?
a. pollen grains
b. seed cone
c. seed
d. cone scale

Answers

Q1. The answer is b. cones.
Reproductive structures of gymnosperms are cones while reproductive structures of angiosperms are flowers. The gametophytes are found in reproductive structures which are called cones in gymnosperms.

Q2. The answer is d. ovules.
The female gametophyte of gymnosperms develops inside the ovules borne on the surface of ovuliferous scale of an ovulate cone while the female gametophyte of angiosperms develops inside the ovules located inside the gynoecium of the flower.

Q3. The answer is a. pollen grains.
Nevermind if a gymnosperm or an angiosperm, pollen grains are always haploid structures so when they fuse with haploid female gamete, a diploid zygote is formed.

Lesson 12: Seed plants

1.Seed-bearing plants differ from all other plants in that

C.Their gametes do not require water for fertilization to occur.

2. IN seed plants, what is an important difference between gymnosperms and most angiosperms.

3. The gametophytes of gymnosperms are found inside reproductive structures called

B. Cones

4. In gymnosperms, the female gametophyte develops inside the

D. Ovules.

5. Which of the following gymnosperm reproductive structures is haploid?

A. Pollen grains

!100!% Correct Hope its help

Which base is found in RNA but NOT in DNA? A) adenine B) cytosine C) thymine D) uracil

Answers

Its Uracil.Uracil is energetically less expensive to produce than thymine, which may account for its use in RNA. In DNA, however, uracil is readily produced by chemical degradation of cytosine, so having thymine as the normal base makes detection and repair of such incipient mutations more efficient

The DNA nucleotide bases include adenine, cytosine, guanine and thymine. The RNAnucleotide bases include adenine, uracil, guanine and cytostine.

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