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Stells [14]
2 years ago
15

Why do you classify pteridophytes under Trachaeophyta?

Biology
1 answer:
JulijaS [17]2 years ago
3 0

Answer:Pteridophytes are called tracheophytes because they have vascular tissues

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In the cells of most organisms, genetic information is contained in the:
xz_007 [3.2K]

Answer:

The nucleus

Explanation:

Most DNA is located in the cell nucleus (where it is called nuclear DNA), but a small amount of DNA can also be found in the mitochondria (where it is called mitochondrial DNA or mtDNA). Mitochondria are structures within cells that convert the energy from food into a form that cells can use.

Hope this helps!

:)

6 0
3 years ago
In the year 100, Ptolemy introduced the geocentric model of the solar system. By the year 1542,
Alecsey [184]

Answer: Ptolemaic system, also called geocentric system or geocentric model, mathematical model of the universe formulated by the Alexandrian astronomer and mathematician Ptolemy about 150 CE and recorded by him in his Almagest and Planetary Hypotheses. The Ptolemaic system is a geocentric cosmology; that is, it starts by assuming that Earth is stationary and at the centre of the universe. The “natural” expectation for ancient societies was that the heavenly bodies (Sun, Moon, planets, and stars) must travel in uniform motion along the most “perfect” path possible, a circle. However, the paths of the Sun, Moon, and planets as observed from Earth are not circular. Ptolemy’s model explained this “imperfection” by postulating that the apparently irregular movements were a combination of several regular circular motions seen in perspective from a stationary Earth.

Explanation:

i hope this help

8 0
3 years ago
Cellular respiration is balanced by photosynthesis; the two processes work
Finger [1]

Answer:

A is the answer

Explanation:

Carbon dioxide and water are the reactants of both processes

4 0
3 years ago
In pea plants the allele for tall plants in dominant to the allele for short plants, and the allele for purple flower colour is
Tom [10]

Answer:

The correct answer is - 4. ttPp

Explanation:

Given - tall is dominant over short pea plant

let assume T is dominant and t is short which is recessive

Similarly, P for dominant purple flower and p for white flower

The offspring has a short plant which means it has both t allele or recessive allele for the height of a plant by the cross of a true-breeding purple and true-breeding white:

    P   P

p   Pp Pp

p   Pp Pp

This means the offspring would have a heterozygous case for the genotype of the flower of the pea plant

Thus, the correct answer is ttPp

7 0
3 years ago
Does anyone have the cell respiration virtual lab
Sholpan [36]

Answer:

No, I haven't learn that when I learn it I will teach you everything I know

6 0
2 years ago
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